Löschung eigener Enträge implementiert.

Implement an EventID saved in settings. Currently this is used to scope
clientIDs and entryIDs to an event. The client checks the event currently going on on
the server, and discards its localstorage (containing the clientID) if
it has changed

.devcontainer/devcontainer.json

@@ -0,0 +1,32 @@
+{
+    "image": "mcr.microsoft.com/devcontainers/universal:2",
+    "hostRequirements": {
+      "cpus": 4
+    },
+    "waitFor": "onCreateCommand",
+    "updateContentCommand": "pip install -r requirements.txt",
+    "postCreateCommand": "",
+    "postAttachCommand": {
+      "server": "flask --debug run"
+    },
+    "portsAttributes": {
+      "5000": {
+        "label": "Application",
+        "onAutoForward": "openPreview"
+      }
+    },
+    "customizations": {
+      "codespaces": {
+        "openFiles": [
+          "templates/index.html"
+        ]
+      },
+      "vscode": {
+        "extensions": [
+          "ms-python.python"
+        ]
+      }
+    },
+    "forwardPorts": [5000]
+  }
+  

.editorconfig

@@ -0,0 +1,36 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = false
+insert_final_newline = false
+
+[*.md]
+trim_trailing_whitespace = true
+
+[*.py]
+indent_size = 4
+
+[*.js]
+indent_size = 2
+
+[*.html]
+indent_size = 2
+
+[*.css]
+indent_size = 2
+
+[*.scss]
+indent_size = 2
+
+[*.yaml]
+indent_size = 2
+
+[*.yml]
+indent_size = 2

.env.dev

@@ -0,0 +1,12 @@
+# MariaDB
+MARIADB_ROOT_PASSWORD=mariadb_root_password
+MARIADB_ROOT_HOST=localhost
+MARIADB_DATABASE=karaoqueue
+MARIADB_USER=karaoqueue
+MARIADB_PASSWORD=mariadb_karaoqueue_password
+
+# Karaoqueue
+DEPLOYMENT_PLATFORM=Docker
+DBSTRING="mysql+pymysql://karaoqueue:mariadb_karaoqueue_password@127.0.0.1:3306/karaoqueue?charset=utf8mb4"
+INITIAL_USERNAME=admin
+INITIAL_PASSWORD=changeme

.flake8

@@ -0,0 +1,3 @@
+[flake8]
+ignore = E501
+max-line-length = 120

.github/workflows/lint.yaml

@@ -0,0 +1,23 @@
+name: Lint
+
+on: [pull_request]
+
+jobs:
+  flake8_py3:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Setup Python
+        uses: actions/setup-python@v4.6.0
+        with:
+          python-version: '3.10'
+          architecture: x64
+      - name: Checkout PyTorch
+        uses: actions/checkout@master
+      - name: Install flake8
+        run: pip install flake8
+      - name: Run flake8
+        uses: suo/flake8-github-action@releases/v1
+        with:
+          checkName: 'flake8_py3'   # NOTE: this needs to be the same as the job name
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -131,3 +131,13 @@ dmypy.json
 
 # Test data
 data/
+
+# Node Modules
+
+node_modules/
+
+# Version identification file
+.version
+
+# Docker secrets
+secrets.yml

.vscode/launch.json

@@ -4,43 +4,83 @@
     // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
     "version": "0.2.0",
     "configurations": [
-
-
-
-        {"name":"Python: Flask","type":"python","request":"launch","module":"flask","env":{"FLASK_APP":"app/main.py","FLASK_ENV":"development","FLASK_DEBUG":"1"},"args":["run","--no-debugger","--no-reload"],"jinja":true},
-        {"name":"Python: Flask (with reload)","type":"python","request":"launch","module":"flask","env":{"FLASK_APP":"app/main.py","FLASK_ENV":"development","FLASK_DEBUG":"1"},"args":["run","--no-debugger"],"jinja":true},
         {
-            "name": "Python: Flask (with reload, externally reachable)",
+            "preLaunchTask": "mariadb",
+            "name": "Python: Flask",
             "type": "python",
+            "cwd": "${workspaceFolder}/backend",
             "request": "launch",
             "module": "flask",
             "env": {
-                "FLASK_APP": "app/main.py",
+                "FLASK_APP": "backend/app.py",
                 "FLASK_ENV": "development",
-                "FLASK_DEBUG": "1"
+                "FLASK_DEBUG": "1", 
             },
+            "envFile": "${workspaceFolder}/.env.dev",
             "args": [
                 "run",
                 "--no-debugger",
-                "--host='0.0.0.0'"
+                "--no-reload"
             ],
             "jinja": true
         },
         {
-            "name": "Python: Flask (externally reachable)",
+            "preLaunchTask": "mariadb",
+            "name": "Python: Flask (with reload)",
             "type": "python",
+            "cwd": "${workspaceFolder}/backend",
             "request": "launch",
             "module": "flask",
             "env": {
-                "FLASK_APP": "app/main.py",
+                "FLASK_APP": "backend/app.py",
                 "FLASK_ENV": "development",
                 "FLASK_DEBUG": "1"
             },
+            "envFile": "${workspaceFolder}/.env.dev",
+            "args": [
+                "run",
+                "--no-debugger"
+            ],
+            "jinja": true
+        },
+        {
+            "preLaunchTask": "mariadb",
+            "name": "Python: Flask (with reload, externally reachable)",
+            "type": "python",
+            "cwd": "${workspaceFolder}/backend",
+            "request": "launch",
+            "module": "flask",
+            "env": {
+                "FLASK_APP": "backend/app.py",
+                "FLASK_ENV": "development",
+                "FLASK_DEBUG": "1"
+            },
+            "envFile": "${workspaceFolder}/.env.dev",
+            "args": [
+                "run",
+                "--no-debugger",
+                "--host=0.0.0.0"
+            ],
+            "jinja": true
+        },
+        {
+            "preLaunchTask": "mariadb",
+            "name": "Python: Flask (externally reachable)",
+            "type": "python",
+            "cwd": "${workspaceFolder}/backend",
+            "request": "launch",
+            "module": "flask",
+            "env": {
+                "FLASK_APP": "backend/app.py",
+                "FLASK_ENV": "development",
+                "FLASK_DEBUG": "1"
+            },
+            "envFile": "${workspaceFolder}/.env.dev",
             "args": [
                 "run",
                 "--no-debugger",
                 "--no-reload",
-                "--host='0.0.0.0'"
+                "--host=0.0.0.0"
             ],
             "jinja": true
         },

.vscode/settings.json

@@ -1,3 +1,17 @@
 {
-    "python.pythonPath": "/usr/bin/python"
+    "python.pythonPath": "/usr/bin/python",
+    "python.testing.unittestArgs": [
+        "-v",
+        "-s",
+        "./backend/tests",
+        "-p",
+        "*test.py"
+    ],
+    "python.testing.pytestEnabled": false,
+    "python.testing.unittestEnabled": true,
+    "python.linting.pylintEnabled": false,
+    "python.linting.flake8Enabled": true,
+    "emmet.includeLanguages": {
+        "django-html": "html"
+    }
 }

.vscode/tasks.json

@@ -0,0 +1,20 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "versiondump",
+            "type": "shell",
+            "command": "echo \"$(git rev-parse --abbrev-ref HEAD)-$(git describe)\"> ${workspaceFolder}/backend/.version",
+            "problemMatcher": []
+        },
+        {
+            "label": "mariadb",
+            "type": "shell",
+            "command": "docker-compose -f docker-compose.yml up --remove-orphans",
+            "isBackground": true,
+            "activeOnStart": false
+        }
+    ]
+}

Dockerfile

@@ -0,0 +1,16 @@
+FROM tiangolo/meinheld-gunicorn-flask:python3.9
+
+RUN apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xcbcb082a1bb943db
+RUN curl -LsS https://downloads.mariadb.com/MariaDB/mariadb_repo_setup | bash
+
+RUN apt-get update
+RUN apt-get upgrade -y
+RUN apt-get dist-upgrade
+
+COPY ./backend/requirements.txt /app/requirements.txt
+
+RUN pip install --no-cache-dir --upgrade -r /app/requirements.txt
+
+RUN pip install --no-cache-dir -U meinheld
+
+COPY ./backend /app

backend/.gcloudignore

@@ -0,0 +1,19 @@
+# This file specifies files that are *not* uploaded to Google Cloud Platform
+# using gcloud. It follows the same syntax as .gitignore, with the addition of
+# "#!include" directives (which insert the entries of the given .gitignore-style
+# file at that point).
+#
+# For more information, run:
+#   $ gcloud topic gcloudignore
+#
+.gcloudignore
+# If you would like to upload your .git directory, .gitignore file or files
+# from your .gitignore file, remove the corresponding line
+# below:
+.git
+.gitignore
+
+# Python pycache:
+__pycache__/
+# Ignored by the build system
+/setup.cfg

backend/Dockerfile

@@ -1,11 +0,0 @@
-FROM tiangolo/uwsgi-nginx-flask:python3.7
-
-RUN pip install requests
-
-RUN pip install pandas
-
-RUN pip install Flask-BasicAuth
-
-RUN pip install bs4
-
-COPY ./app /app

backend/Procfile

@@ -0,0 +1 @@
+web: gunicorn wsgi:app

backend/app.py

@@ -0,0 +1,305 @@
+from flask import Flask, render_template, abort, request, redirect, send_from_directory, jsonify
+from flask.wrappers import Response
+import helpers
+import database
+import data_adapters
+import os
+import json
+from flask_basicauth import BasicAuth
+from helpers import nocache
+app = Flask(__name__, static_url_path='/static')
+
+basic_auth = BasicAuth(app)
+accept_entries = True
+
+
+@app.route("/")
+def home():
+    if basic_auth.authenticate():
+        return render_template('main_admin.html', list=database.get_list(), auth=basic_auth.authenticate())
+    else:
+        return render_template('main.html', list=database.get_list(), auth=basic_auth.authenticate())
+
+
+@app.route("/favicon.ico")
+def favicon():
+    return send_from_directory(os.path.join(app.root_path, 'static'),
+                               'favicon.ico', mimetype='image/vnd.microsoft.icon')
+
+
+@app.route('/api/enqueue', methods=['POST'])
+@nocache
+def enqueue():
+    if not request.json:
+        print(request.data)
+        abort(400)
+    client_id = request.json['client_id']
+    if not helpers.is_valid_uuid(client_id):
+        print(request.data)
+        abort(400)
+    name = request.json['name']
+    song_id = request.json['id']
+    if request.authorization:
+        entry_id = database.add_entry(name, song_id, client_id)
+        return Response(f"""{{"status":"OK", "entry_id":{entry_id}}}""", mimetype='text/json')
+    else:
+        if helpers.get_accept_entries(app):
+            if not request.json:
+                print(request.data)
+                abort(400)
+            client_id = request.json['client_id']
+            if not helpers.is_valid_uuid(client_id):
+                print(request.data)
+                abort(400)
+            name = request.json['name']
+            song_id = request.json['id']
+            if database.check_queue_length() < int(app.config['MAX_QUEUE']):
+                if database.check_entry_quota(client_id) < int(app.config['ENTRY_QUOTA']):
+                    entry_id = database.add_entry(name, song_id, client_id)
+                    return Response(f"""{{"status":"OK", "entry_id":{entry_id}}}""", mimetype='text/json')
+                else:
+                    return Response('{"status":"Du hast bereits ' + str(database.check_entry_quota(client_id)) + ' Songs eingetragen, dies ist das Maximum an Einträgen die du in der Warteliste haben kannst."}', mimetype='text/json', status=423)
+            else:
+                return Response('{"status":"Die Warteschlange enthält momentan ' + str(database.check_queue_length()) + ' Einträge und ist lang genug, bitte versuche es noch einmal wenn ein paar Songs gesungen wurden."}', mimetype='text/json', status=423)
+        else:
+            return Response('{"status":"Currently not accepting entries"}', mimetype='text/json', status=423)
+
+
+@app.route("/list")
+def songlist():
+    return render_template('songlist.html', list=database.get_song_list(), auth=basic_auth.authenticate())
+
+
+@app.route("/settings")
+@nocache
+@basic_auth.required
+def settings():
+    return render_template('settings.html', app=app, auth=basic_auth.authenticate(), themes=helpers.get_themes())
+
+
+@app.route("/settings", methods=['POST'])
+@nocache
+@basic_auth.required
+def settings_post():
+    entryquota = request.form.get("entryquota")
+    maxqueue = request.form.get("maxqueue")
+    theme = request.form.get("theme")
+    username = request.form.get("username")
+    password = request.form.get("password")
+    changed_credentials = False
+    if entryquota.isnumeric() and int(entryquota) > 0:  # type: ignore
+        app.config['ENTRY_QUOTA'] = int(entryquota)  # type: ignore
+    else:
+        abort(400)
+    if maxqueue.isnumeric and int(maxqueue) > 0:  # type: ignore
+        app.config['MAX_QUEUE'] = int(maxqueue)  # type: ignore
+    else:
+        abort(400)
+    if theme is not None and theme in helpers.get_themes():
+        helpers.set_theme(app, theme)
+    else:
+        abort(400)
+    if username != "" and username != app.config['BASIC_AUTH_USERNAME']:
+        app.config['BASIC_AUTH_USERNAME'] = username
+        changed_credentials = True
+    if password != "":
+        app.config['BASIC_AUTH_PASSWORD'] = password
+        changed_credentials = True
+    helpers.persist_config(app=app)
+    if changed_credentials:
+        return redirect("/")
+    else:
+        return render_template('settings.html', app=app, auth=basic_auth.authenticate(), themes=helpers.get_themes())
+
+
+@app.route("/api/queue")
+@nocache
+def queue_json():
+    list = data_adapters.dict_from_rows(database.get_list())
+    return Response(json.dumps(list, ensure_ascii=False).encode('utf-8'), mimetype='text/json')
+
+
+@app.route("/plays")
+@nocache
+@basic_auth.required
+def played_list():
+    return render_template('played_list.html', list=database.get_played_list(), auth=basic_auth.authenticate())
+
+
+@app.route("/api/songs")
+@nocache
+def songs():
+    list = database.get_song_list()
+    return Response(json.dumps(list, ensure_ascii=False).encode('utf-8'), mimetype='text/json')
+
+
+@app.route("/api/songs/update")
+@nocache
+@basic_auth.required
+def update_songs():
+    database.delete_all_entries()
+    helpers.reset_current_event_id(app)
+    status = database.import_songs(
+        helpers.get_songs(helpers.get_catalog_url()))
+    print(status)
+    return Response('{"status": "%s" }' % status, mimetype='text/json')
+
+
+@app.route("/api/songs/compl")  # type: ignore
+@nocache
+def get_song_completions(input_string=""):
+    input_string = request.args.get('search', input_string)
+    if input_string != "":
+        result = [list(x) for x in database.get_song_completions(input_string=input_string)]
+        return jsonify(result)
+
+    else:
+        return 400
+
+
+@app.route("/api/entries/delete/<entry_id>", methods=['GET'])
+@nocache
+@basic_auth.required
+def delete_entry_admin(entry_id):
+    if database.delete_entry(entry_id):
+        return Response('{"status": "OK"}', mimetype='text/json')
+    else:
+        return Response('{"status": "FAIL"}', mimetype='text/json')
+
+
+@app.route("/api/entries/delete/<entry_id>", methods=['POST'])
+@nocache
+def delete_entry_user(entry_id):
+    if not request.json:
+        print(request.data)
+        abort(400)
+    client_id = request.json['client_id']
+    if not helpers.is_valid_uuid(client_id):
+        print(request.data)
+        abort(400)
+    if database.get_raw_entry(entry_id)[3] != client_id:  # type: ignore
+        print(request.data)
+        abort(403)
+    if database.delete_entry(entry_id):
+        return Response('{"status": "OK"}', mimetype='text/json')
+    else:
+        return Response('{"status": "FAIL"}', mimetype='text/json')
+
+
+@app.route("/api/entries/delete", methods=['POST'])
+@nocache
+@basic_auth.required
+def delete_entries():
+    if not request.json:
+        print(request.data)
+        abort(400)
+        return
+    updates = database.delete_entries(request.json)
+    if updates >= 0:
+        return Response('{"status": "OK", "updates": ' + str(updates) + '}', mimetype='text/json')
+    else:
+        return Response('{"status": "FAIL"}', mimetype='text/json', status=400)
+
+
+@app.route("/api/entries/mark_sung/<entry_id>")
+@nocache
+@basic_auth.required
+def mark_sung(entry_id):
+    if database.add_sung_song(entry_id):
+        return Response('{"status": "OK"}', mimetype='text/json')
+    else:
+        return Response('{"status": "FAIL"}', mimetype='text/json')
+
+
+@app.route("/api/entries/mark_transferred/<entry_id>")
+@nocache
+@basic_auth.required
+def mark_transferred(entry_id):
+    if database.toggle_transferred(entry_id):
+        return Response('{"status": "OK"}', mimetype='text/json')
+    else:
+        return Response('{"status": "FAIL"}', mimetype='text/json')
+
+
+@app.route("/api/entries/accept/<value>")
+@nocache
+@basic_auth.required
+def set_accept_entries(value):
+    if (value == '0' or value == '1'):
+        helpers.set_accept_entries(app, bool(int(value)))
+        return Response('{"status": "OK"}', mimetype='text/json')
+    else:
+        return Response('{"status": "FAIL"}', mimetype='text/json', status=400)
+
+
+@app.route("/api/entries/accept")
+@nocache
+def get_accept_entries():
+    accept_entries = helpers.get_accept_entries(app)
+    return Response('{"status": "OK", "value": ' + str(int(accept_entries)) + '}', mimetype='text/json')
+
+
+@app.route("/api/played/clear")
+@nocache
+@basic_auth.required
+def clear_played_songs():
+    if database.clear_played_songs():
+        return Response('{"status": "OK"}', mimetype='text/json')
+    else:
+        return Response('{"status": "FAIL"}', mimetype='text/json')
+
+
+@app.route("/api/entries/delete_all")
+@nocache
+@basic_auth.required
+def delete_all_entries():
+    if database.delete_all_entries():
+        helpers.reset_current_event_id(app)
+        return Response('{"status": "OK"}', mimetype='text/json')
+    else:
+        return Response('{"status": "FAIL"}', mimetype='text/json')
+
+
+@app.route("/login")
+@basic_auth.required
+def admin():
+    return redirect("/", code=303)
+
+
+@app.route("/api/events/current")
+@nocache
+def get_current_event():
+    return Response('{"status": "OK", "event": "' + helpers.get_current_event_id(app) + '"}', mimetype='text/json')
+
+
+@app.before_first_request
+def activate_job():
+    helpers.load_dbconfig(app)
+    helpers.load_version(app)
+    database.create_entry_table()
+    database.create_song_table()
+    database.create_done_song_table()
+    database.create_list_view()
+    database.create_done_song_view()
+    database.create_config_table()
+    helpers.setup_config(app)
+
+
+@app.after_request
+def add_header(response):
+    """
+    Add headers to both force latest IE rendering engine or Chrome Frame,
+    and also to cache the rendered page for 10 minutes.
+    """
+    if 'Cache-Control' not in response.headers:
+        response.headers['Cache-Control'] = 'private, max-age=600, no-cache, must-revalidate'
+    return response
+
+
+@app.context_processor
+def inject_version():
+    return dict(karaoqueue_version=app.config['VERSION'])
+
+
+if __name__ == "__main__":
+    app.run(host='127.0.0.1', port=8080, debug=True)

backend/app.yaml

@@ -0,0 +1,19 @@
+runtime: python39
+
+manual_scaling:
+  # Das ist alles bloß dumm schnell zusammengehackt...
+  instances: 1
+
+handlers:
+  # This configures Google App Engine to serve the files in the app's static
+  # directory.
+- url: /static
+  static_dir: static
+
+  # This handler routes all requests not caught above to your main app. It is
+  # required when static routes are defined, but can be omitted (along with
+  # the entire handlers section) when there are no static files defined.
+- url: /.*
+  script: auto
+  secure: always
+  redirect_http_response_code: 301

backend/app/data_adapters.py

@@ -1,8 +0,0 @@
-def dict_from_row(row):
-    return dict(zip(row.keys(), row))
-
-def dict_from_rows(rows):
-    outlist=[]
-    for row in rows:
-        outlist.append(dict_from_row(row))
-    return outlist

backend/app/database.py

@@ -1,165 +0,0 @@
-# -*- coding: utf_8 -*-
-
-import sqlite3
-import pandas
-from io import StringIO
-
-song_table  = "songs"
-entry_table = "entries"
-index_label = "Id"
-done_table  = "done_songs"
-
-def open_db():
-    conn = sqlite3.connect("data/test.db")
-    conn.execute('PRAGMA encoding = "UTF-8";')
-    return conn
-
-def import_songs(song_csv):
-    print("Start importing Songs...")
-    df = pandas.read_csv(StringIO(song_csv), sep=';')
-    conn = open_db()
-    cur = conn.cursor()
-    df.to_sql(song_table, conn, if_exists='replace',
-              index=False)
-    cur.execute("SELECT Count(Id) FROM songs")
-    num_songs = cur.fetchone()[0]
-    conn.close()
-    print("Imported songs ({} in Database)".format(num_songs))
-    return("Imported songs ({} in Database)".format(num_songs)) 
-
-def create_entry_table():
-    conn = open_db()
-    conn.execute('CREATE TABLE IF NOT EXISTS '+entry_table +
-                 ' (ID INTEGER PRIMARY KEY NOT NULL, Song_Id INTEGER NOT NULL, Name VARCHAR(255))')
-    conn.close()
-
-
-def create_done_song_table():
-    conn = open_db()
-    conn.execute('CREATE TABLE IF NOT EXISTS '+done_table +
-                 ' (Song_Id INTEGER PRIMARY KEY NOT NULL,  Plays INTEGER)')
-    conn.close()
-
-def create_song_table():
-    conn = open_db()
-    conn.execute("CREATE TABLE IF NOT EXISTS \""+song_table+"""\" (
-        "Id" INTEGER,
-        "Title" TEXT,
-        "Artist" TEXT,
-        "Year" INTEGER,
-        "Duo" INTEGER,
-        "Explicit" INTEGER,
-        "Date Added" TEXT,
-        "Styles" TEXT,
-        "Languages" TEXT
-    )""")
-    conn.close()
-
-def create_list_view():
-    conn = open_db()
-    conn.execute("""CREATE VIEW IF NOT EXISTS [Liste] AS
-                 SELECT Name, Title, Artist, entries.Id, songs.Id
-                 FROM entries, songs
-                 WHERE entries.Song_Id=songs.Id""")
-    conn.close()
-
-
-def create_done_song_view():
-    conn = open_db()
-    conn.execute("""CREATE VIEW IF NOT EXISTS [Abspielliste] AS
-                 SELECT Artist || \" - \" || Title AS Song, Plays AS Wiedergaben
-                 FROM songs, done_songs
-                 WHERE done_songs.Song_Id=songs.Id""")
-    conn.close()
-
-def get_list():
-    conn = open_db()
-    conn.row_factory = sqlite3.Row
-    cur = conn.cursor()
-    cur.execute("SELECT * FROM Liste")
-    return cur.fetchall()
-
-
-def get_played_list():
-    conn = open_db()
-    cur = conn.cursor()
-    cur.execute("SELECT * FROM Abspielliste")
-    return cur.fetchall()
-
-def get_song_list():
-    conn =open_db()
-    cur = conn.cursor()
-    cur.execute("SELECT Artist || \" - \" || Title AS Song, Id FROM songs")
-    return cur.fetchall()
-
-def get_song_completions(input_string):
-    conn = open_db()
-    cur = conn.cursor()
-    # Don't look, it burns...
-    cur.execute(
-        "SELECT Title || \" - \" || Artist AS Song, Id FROM songs WHERE Song LIKE REPLACE(REPLACE(REPLACE(REPLACE(UPPER('%"+input_string+"%'),'ö','Ö'),'ü','Ü'),'ä','Ä'),'ß','ẞ') LIMIT 20")
-    return cur.fetchall()
-
-def add_entry(name,song_id):
-    conn = open_db()
-    cur = conn.cursor()
-    cur.execute(
-        "INSERT INTO entries (Song_Id,Name) VALUES(?,?);", (song_id,name))
-    conn.commit()
-    conn.close()
-    return
-
-def add_sung_song(entry_id):
-    conn = open_db()
-    cur = conn.cursor()
-    cur.execute("""SELECT Song_Id FROM entries WHERE Id=?""",(entry_id,))
-    song_id = cur.fetchone()[0]
-    cur.execute("""INSERT OR REPLACE INTO done_songs (Song_Id, Plays)
-                VALUES("""+str(song_id)+""",
-                       COALESCE(
-                           (SELECT Plays FROM done_songs
-                            WHERE Song_Id="""+str(song_id)+"), 0) + 1)"
-                )
-    conn.commit()
-    delete_entry(entry_id)
-    conn.close()
-    return True
-
-def clear_played_songs():
-    conn = open_db()
-    cur = conn.cursor()
-    cur.execute("DELETE FROM done_songs")
-    conn.commit()
-    conn.close()
-    return True
-
-def delete_entry(id):
-    conn = open_db()
-    cur = conn.cursor()
-    cur.execute("DELETE FROM entries WHERE id=?",(id,))
-    conn.commit()
-    conn.close()
-    return True
-
-
-def delete_entries(ids):
-    idlist = []
-    for x in ids:
-        idlist.append( (x,) )
-    try:
-        conn = open_db()
-        cur = conn.cursor()
-        cur.executemany("DELETE FROM entries WHERE id=?", idlist)
-        conn.commit()
-        conn.close()
-        return cur.rowcount
-    except sqlite3.Error as error:
-        return -1
-
-def delete_all_entries():
-    conn = open_db()
-    cur = conn.cursor()
-    cur.execute("DELETE FROM entries")
-    conn.commit()
-    conn.close()
-    return True

backend/app/helpers.py

@@ -1,39 +0,0 @@
-import requests
-from bs4 import BeautifulSoup
-import json
-import os
-
-data_directory = "data"
-config_file = data_directory+"/config.json"
-
-def create_data_directory():
-    if not os.path.exists(data_directory):
-        os.makedirs(data_directory)
-
-
-def get_catalog_url():
-    r = requests.get('https://www.karafun.de/karaoke-song-list.html')
-    soup = BeautifulSoup(r.content, 'html.parser')
-    url = soup.findAll('a', href=True, text='CSV')[0]['href']
-    return url
-
-def get_songs(url):
-    r = requests.get(url)
-    return r.text
-
-def check_config_exists():
-    return os.path.isfile(config_file)
-
-def setup_config(app):
-    if check_config_exists():
-        config = json.load(open(config_file))
-        with open(config_file, 'r') as handle:
-            config = json.load(handle)
-        print("Loaded existing config")
-    else:
-        config = {'username': 'admin', 'password': 'changeme'}
-        with open(config_file, 'w') as handle:
-            json.dump(config, handle, indent=4, sort_keys=True)
-        print("Wrote new config")
-    app.config['BASIC_AUTH_USERNAME'] = config['username']
-    app.config['BASIC_AUTH_PASSWORD'] = config['password']

backend/app/main.py

@@ -1,155 +0,0 @@
-from flask import Flask, render_template, Response, abort, request, redirect
-import helpers
-import database
-import data_adapters
-import os, errno
-import json
-from flask_basicauth import BasicAuth
-app = Flask(__name__, static_url_path='/static')
-
-basic_auth = BasicAuth(app)
-accept_entries = False
-
-@app.route("/")
-def home():
-    if basic_auth.authenticate():
-        return render_template('main_admin.html', list=database.get_list(), auth=basic_auth.authenticate())
-    else:
-        return render_template('main.html', list=database.get_list(), auth=basic_auth.authenticate())
-
-@app.route('/api/enqueue', methods=['POST'])
-def enqueue():
-    if accept_entries:
-        if not request.json:
-            print(request.data)
-            abort(400)
-        name = request.json['name']
-        song_id = request.json['id']
-        database.add_entry(name, song_id)
-        return Response('{"status":"OK"}', mimetype='text/json')
-    else:
-        return Response('{"status":"Currently not accepting entries"}', mimetype='text/json',status=423)
-    
-
-@app.route("/list")
-def songlist():
-    return render_template('songlist.html', list=database.get_song_list(), auth=basic_auth.authenticate())
-
-@app.route("/api/queue")
-def queue_json():
-    list = data_adapters.dict_from_rows(database.get_list())
-    return Response(json.dumps(list, ensure_ascii=False).encode('utf-8'), mimetype='text/json')
-
-@app.route("/plays")
-@basic_auth.required
-def played_list():
-    return render_template('played_list.html', list=database.get_played_list(), auth=basic_auth.authenticate())
-
-@app.route("/api/songs")
-def songs():
-    list = database.get_song_list()
-    return Response(json.dumps(list, ensure_ascii=False).encode('utf-8'), mimetype='text/json')
-
-@app.route("/api/songs/update")
-@basic_auth.required
-def update_songs():
-    database.delete_all_entries()
-    status = database.import_songs(helpers.get_songs(helpers.get_catalog_url()))
-    print(status)
-    return Response('{"status": "%s" }' % status, mimetype='text/json')
-
-
-@app.route("/api/songs/compl")
-def get_song_completions(input_string=""):
-    input_string = request.args.get('search',input_string)
-    if input_string!="":
-        print(input_string)
-        list = database.get_song_completions(input_string=input_string)
-        return Response(json.dumps(list, ensure_ascii=False).encode('utf-8'), mimetype='text/json')
-
-    else:
-        return 400
-
-
-@app.route("/api/entries/delete/<entry_id>")
-@basic_auth.required
-def delete_entry(entry_id):
-    if database.delete_entry(entry_id):
-        return Response('{"status": "OK"}', mimetype='text/json')
-    else:
-        return Response('{"status": "FAIL"}', mimetype='text/json')
-
-
-@app.route("/api/entries/delete", methods=['POST'])
-@basic_auth.required
-def delete_entries():
-    if not request.json:
-        print(request.data)
-        abort(400)
-        return
-    updates = database.delete_entries(request.json)
-    if updates >= 0:
-        return Response('{"status": "OK", "updates": '+str(updates)+'}', mimetype='text/json')
-    else:
-        return Response('{"status": "FAIL"}', mimetype='text/json', status=400)
-
-
-@app.route("/api/entries/mark_sung/<entry_id>")
-@basic_auth.required
-def mark_sung(entry_id):
-    if database.add_sung_song(entry_id):
-        return Response('{"status": "OK"}', mimetype='text/json')
-    else:
-        return Response('{"status": "FAIL"}', mimetype='text/json')
-
-@app.route("/api/entries/accept/<value>")
-@basic_auth.required
-def set_accept_entries(value):
-    global accept_entries
-    if (value=='0' or value=='1'):
-        accept_entries=bool(int(value))
-        return Response('{"status": "OK"}', mimetype='text/json')
-    else:
-        return Response('{"status": "FAIL"}', mimetype='text/json', status=400)
-
-
-@app.route("/api/entries/accept")
-def get_accept_entries():
-    global accept_entries
-    return Response('{"status": "OK", "value": '+str(int(accept_entries))+'}', mimetype='text/json')
-    
-
-@app.route("/api/played/clear")
-@basic_auth.required
-def clear_played_songs():
-    if database.clear_played_songs():
-        return Response('{"status": "OK"}', mimetype='text/json')
-    else:
-        return Response('{"status": "FAIL"}', mimetype='text/json')
-
-@app.route("/api/entries/delete_all")
-@basic_auth.required
-def delete_all_entries():
-    if database.delete_all_entries():
-        return Response('{"status": "OK"}', mimetype='text/json')
-    else:
-        return Response('{"status": "FAIL"}', mimetype='text/json')
-
-@app.route("/login")
-@basic_auth.required
-def admin():
-    return redirect("/", code=303)
-
-@app.before_first_request
-def activate_job():
-    helpers.create_data_directory()
-    database.create_entry_table()
-    database.create_song_table()
-    database.create_done_song_table()
-    database.create_list_view()
-    database.create_done_song_view()
-    helpers.setup_config(app)
-
-
-if __name__ == "__main__":    
-    app.run(debug=True, host='0.0.0.0')

backend/app/static/css/style.css

@@ -1,77 +0,0 @@
-body {
-    padding-top: 5rem;
-}
-
-html, body {
-    height: 100%;
-}
-
-.site {
-    height: auto;
-    min-height: 100%;
-}
-
-main {
-    padding-bottom: 60px; /* Höhe des Footers */
-}
-
-.footer {
-    margin-top: -60px;
-    width: 100%;
-    height: 60px;
-    /* Set the fixed height of the footer here */
-    /*line-height: 60px; /* Vertically center the text there */
-    background-color: #f5f5f5;
-}
-
-.topbutton {
-    width: 100%;
-}
-
-table td {
-    overflow: hidden;
-    text-overflow: ellipsis;
-}
-
-table.entries tbody tr:first-child {
-    background-color: #007bff80;
-    font-weight: 600;
-}
-
-table.entries tbody tr:nth-child(2) {
-    background-color: #007bff40;
-    font-weight: 500;
-}
-
-table.entries tbody tr:nth-child(3) {
-    background-color: #007bff20;
-    font-weight: 400;
-}
-
-table.entries tbody tr:nth-child(4) {
-    background-color: #007bff10;
-}
-
-table td:first-child {
-    max-width: 200px !important;
-}
-
-@media (min-width: 768px) {
-    .topbutton {
-        width: auto;
-    }
-}
-
-@media print {
-    body {
-        font-size: 1.3em;
-    }
-
-    .footer {
-        display: none !important;
-    }
-
-    .admincontrols {
-        display: none;
-    }
-}

backend/app/templates/main.html

@@ -1,35 +0,0 @@
-
-
-{% extends 'base.html' %}
-{% block title %}Warteliste{% endblock %}
-{% block content %}
-<a id="bfb" role="button" class="btn btn-primary btn-lg btn-block mb-2" href="/list">Eintragen</a>
-<table class="table entries"
-        data-toggle="table"
-        data-url="/api/queue"
-        data-pagination="true"
-        data-classes="table"
-        data-show-refresh="false"
-        data-auto-refresh="true"
-        data-auto-refresh-interval="10">
-    <thead>
-        <tr>
-            <th data-field="Name">Name</th>
-            <th data-field="Title">Song</th>
-            <th data-field="Artist">Künstler</th>
-        </tr>
-    </thead>
-</table>
-<a name="end"></a>
-{% endblock %}
-{% block extrajs %}
-<script>
-$.getJSON("/api/entries/accept", (data) => {
-    if (data["value"]==0) {
-        $("#bfb").addClass("disabled")
-        $("#bfb").prop("aria-disabled",true);
-        $("#bfb").prop("tabindex","-1");
-    }
-})
-</script>
-{% endblock %}

backend/app/templates/main_admin.html

@@ -1,191 +0,0 @@
-
-
-{% extends 'base.html' %}
-{% block title %}Warteliste-Admin{% endblock %}
-{% block content %}
-<style>
-table td:nth-child(2) {
-    max-width: 450px !important;
-    overflow: scroll;
-}
-</style>
-<div class="container">
-    <div id="toolbar">
-        <button type="button" class="topbutton btn btn-danger" onclick="confirmDeleteSelectedEntries()"><i
-                class="fas fa-trash mr-2"></i>Gewählte Einträge löschen</button>
-        <button type="button" class="topbutton btn btn-danger" onclick="confirmUpdateSongDatabase()"><i
-                class="fas fa-file-import mr-2"></i>Song-Datenbank
-            aktualisieren</button>
-        <input id="entryToggle" type="checkbox" class="topbutton" data-toggle="toggle" data-on="Eintragen erlaubt" data-off="Eintragen deaktiviert" data-onstyle="success" data-offstyle="danger">
-    </div>
-    <table class="table entries"
-            id="entrytable"
-            data-toggle="table"
-            data-search="true"
-            data-show-columns="true"
-            data-show-toggle="true"
-            data-multiple-select-row="true"
-            data-click-to-select="true"
-            data-toolbar="#toolbar"
-            data-pagination="true"
-            data-show-extended-pagination="true"
-            data-classes="table table-hover"
-            data-url="/api/queue"
-            data-show-refresh="true"
-            data-auto-refresh="true"
-            data-auto-refresh-interval="10">
-        <thead>
-            <tr>
-                <th data-field="state" data-checkbox="true"></th>
-                <th scope="col" data-field="Name">Name</th>
-                <th scope="col" data-field="Title">Song</th>
-                <th scope="col" data-field="Artist">Künstler</th>
-                <th scope="col" data-formatter="TableActions">Aktionen</th>
-            </tr>
-        </thead>
-    </table>
-    <a name="end"></a>
-</div>
-{% endblock %}
-{% block extrajs %}
-<script>
-    $(function () {
-        $('#entryToggle').change(function() {
-            $.ajax({url: "/api/entries/accept/"+($('#entryToggle').is(":checked") ? "1" : "0"), complete: setTimeout(refreshEntryToggle, 1000)});
-        })
-        refreshEntryToggle()
-        $("#entrytable").bootstrapTable().on('load-success.bs.table', function() {
-            $('[data-toggle="tooltip"]').tooltip()
-        })
-    })
-    function confirmDeleteEntry(name, entry_id) {
-        bootbox.confirm("Wirklich den Eintrag von "+name+" löschen?", function(result){
-            if (result) {
-                deleteEntry(entry_id)
-            }
-        })
-    }
-    function confirmDeleteSelectedEntries() {
-        bootbox.confirm({
-            message: "Wirklich gewählte Eintragungen löschen?", 
-            buttons: {
-                confirm: {
-                    label: 'Ja',
-                    className: 'btn btn-danger'
-                },
-                cancel: {
-                    label: 'Nein',
-                    className: 'btn btn-secondary'
-                }
-            },
-            callback: function(result){
-                if (result) {
-                    DeleteSelectedEntries(getIdSelections())
-                }
-            }
-        })
-    }
-    function confirmUpdateSongDatabase() {
-        bootbox.confirm({
-            message: "Wirklich die Song-Datenbank aktualisieren?<br>Dies lädt die Aktuelle Song-Liste von <a href='https://www.karafun.de/karaoke-song-list.html'>KaraFun</a> herunter, <b>und wird alle Eintragungen löschen!</b>",
-            buttons: {
-                confirm: {
-                    label: 'Ja',
-                    className: 'btn-primary'
-                },
-                cancel: {
-                    label: 'Nein',
-                    className: 'btn btn-secondary'
-                }
-            },
-            callback: function(result){
-                if (result) {
-                    var dialog = bootbox.dialog({
-                        message: '<p class="text-center mb-0"><i class="fa fa-spin fa-cog"></i> Aktualisiere Song-Datenbank...</p>',
-    
-                        closeButton: false
-                    });
-                    updateSongDatabase(dialog)                    
-                }
-            }
-        })
-    }
-    function refreshEntryToggle() {
-        $.getJSON("/api/entries/accept", (data) => {
-            if (data["value"]!=$('#entryToggle').is(":checked")) {
-                if(data["value"]==1) {
-                $('#entryToggle').bootstrapToggle('on')
-                }
-                else {
-                    $('#entryToggle').bootstrapToggle('off')
-                }
-            }
-        })
-    }
-    function deleteEntry(entry_id) {
-       $.ajax({
-        type: 'GET',
-        url: '/api/entries/delete/'+entry_id,
-        contentType: "application/json",
-        dataType: 'json',
-        async: false
-       });
-       $("#entrytable").bootstrapTable('refresh')
-    
-    }
-    function markEntryAsSung(entry_id) {
-       $.ajax({
-        type: 'GET',
-        url: '/api/entries/mark_sung/'+entry_id,
-        contentType: "application/json",
-        dataType: 'json',
-        async: false
-       });
-       $("#entrytable").bootstrapTable('refresh')
-    
-    }
-    function DeleteSelectedEntries(ids) {
-        $.ajax({
-            type: 'POST',
-            url: '/api/entries/delete',
-            data: JSON.stringify(ids), // or JSON.stringify ({name: 'jonas'}),
-            error: function() {
-                bootbox.alert({
-                    message: "Fehler beim Löschen der Eintragungen.",
-                })
-            },
-            success: function() {
-                $("#entrytable").bootstrapTable('refresh')
-            
-            },
-            contentType: "application/json",
-            dataType: 'json'
-        });
-    }
-    function updateSongDatabase(wait_dialog) {
-        $.ajax({
-            type: 'GET',
-            url: '/api/songs/update',
-            contentType: "application/json",
-            dataType: 'json',
-            success: function(data) {
-                wait_dialog.modal('hide')
-                bootbox.alert({
-                    message: data["status"],
-                    callback: function() {
-                        $("#entrytable").bootstrapTable('refresh')
-                    }
-                })
-            }
-        });
-    }
-    function TableActions (value, row, index) {
-        return "<button type=\"button\" class=\"btn btn-success\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"Als gesungen markieren\" onclick=\"markEntryAsSung("+row.ID+")\"><i class=\"fas fa-check\"></i></button>&nbsp;<button type=\"button\" class=\"btn btn-danger\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"Eintrag löschen\" onclick=\"confirmDeleteEntry('"+row.Name+"',"+row.ID+")\"><i class=\"fas fa-trash\"></i></button>";
-    }
-    function getIdSelections() {
-        return $.map($("#entrytable").bootstrapTable('getSelections'), function (row) {
-            return row.ID
-        })
-    }
-</script>
-{% endblock %}

backend/data_adapters.py

@@ -0,0 +1,5 @@
+def dict_from_rows(rows):
+    outlist = []
+    for row in rows:
+        outlist.append(dict(row._mapping))
+    return outlist

backend/database.py

@@ -0,0 +1,297 @@
+# -*- coding: utf_8 -*-
+
+from sqlalchemy import create_engine, engine, text
+import pandas
+from io import StringIO
+from flask import current_app
+import uuid
+
+song_table = "songs"
+entry_table = "entries"
+index_label = "Id"
+done_table = "done_songs"
+
+sql_engine = None
+
+
+def get_db_engine() -> engine.base.Engine:
+    global sql_engine
+    if (not sql_engine):
+        sql_engine = create_engine(
+            current_app.config.get("DBCONNSTRING"))  # type: ignore
+    return sql_engine
+
+
+def import_songs(song_csv):
+    print("Start importing Songs...")
+    df = pandas.read_csv(StringIO(song_csv), sep=';')
+    with get_db_engine().connect() as conn:
+        df.to_sql(song_table, conn, if_exists='replace',
+                  index=False)
+        cur = conn.execute(text("SELECT Count(Id) FROM songs"))
+        num_songs = cur.fetchone()[0]  # type: ignore
+        conn.commit()
+    print("Imported songs ({} in Database)".format(num_songs))
+    return ("Imported songs ({} in Database)".format(num_songs))
+
+
+def create_entry_table():
+    with get_db_engine().connect() as conn:
+        stmt = text(
+            f'CREATE TABLE IF NOT EXISTS `{entry_table}` (ID INTEGER PRIMARY KEY NOT NULL AUTO_INCREMENT, Song_Id INTEGER NOT NULL, Name VARCHAR(255), Client_Id VARCHAR(36), Transferred INTEGER DEFAULT 0)')
+        conn.execute(stmt)
+        conn.commit()
+
+
+def create_done_song_table():
+    with get_db_engine().connect() as conn:
+        stmt = text(
+            f'CREATE TABLE IF NOT EXISTS `{done_table}` (Song_Id INTEGER PRIMARY KEY NOT NULL,  Plays INTEGER)')
+        conn.execute(stmt)
+        conn.commit()
+
+
+def create_song_table():
+    with get_db_engine().connect() as conn:
+        stmt = text(f"""CREATE TABLE IF NOT EXISTS `{song_table}` (
+        `Id` INTEGER,
+        `Title` TEXT,
+        `Artist` TEXT,
+        `Year` VARCHAR(4),
+        `Duo` BOOLEAN,
+        `Explicit` INTEGER,
+        `Date Added` TIMESTAMP,
+        `Styles` TEXT,
+        `Languages` TEXT
+        )""")
+        conn.execute(stmt)
+        conn.commit()
+
+
+def create_list_view():
+    with get_db_engine().connect() as conn:
+        stmt = text("""CREATE OR REPLACE VIEW `Liste` AS
+                 SELECT Name, Title, Artist, entries.Id AS entry_ID, songs.Id AS song_ID, entries.Transferred
+                 FROM entries, songs
+                 WHERE entries.Song_Id=songs.Id
+                 ORDER BY entries.Id ASC
+                 """)
+        conn.execute(stmt)
+        conn.commit()
+
+
+def create_done_song_view():
+    with get_db_engine().connect() as conn:
+        stmt = text("""CREATE OR REPLACE VIEW `Abspielliste` AS
+                 SELECT CONCAT(Artist," - ", Title) AS Song, Plays AS Wiedergaben
+                 FROM songs, done_songs
+                 WHERE done_songs.Song_Id=songs.Id""")
+        conn.execute(stmt)
+        conn.commit()
+
+
+def create_config_table():
+    with get_db_engine().connect() as conn:
+        stmt = text("""CREATE TABLE IF NOT EXISTS `config` (
+        `Key` VARCHAR(50) NOT NULL PRIMARY KEY,
+        `Value` TEXT
+        )""")
+        conn.execute(stmt)
+        conn.commit()
+
+
+def get_list():
+    with get_db_engine().connect() as conn:
+        stmt = text("SELECT * FROM Liste")
+        cur = conn.execute(stmt)
+    return cur.fetchall()
+
+
+def get_played_list():
+    with get_db_engine().connect() as conn:
+        stmt = text("SELECT * FROM Abspielliste")
+        cur = conn.execute(stmt)
+    return cur.fetchall()
+
+
+def get_song_list():
+    with get_db_engine().connect() as conn:
+        stmt = text("SELECT Artist || \" - \" || Title AS Song, Id FROM songs;")
+        cur = conn.execute(stmt)
+    return cur.fetchall()
+
+
+def get_song_completions(input_string):
+    with get_db_engine().connect() as conn:
+        prepared_string = f"%{input_string.upper()}%"
+        stmt = text(
+            "SELECT CONCAT(Artist, ' - ', Title) AS Song, Id FROM songs WHERE CONCAT(Artist, ' - ', Title) LIKE :prepared_string LIMIT 20;")
+        cur = conn.execute(
+            stmt, {"prepared_string": prepared_string})  # type: ignore
+        return cur.fetchall()
+
+
+def add_entry(name, song_id, client_id):
+    with get_db_engine().connect() as conn:
+        stmt = text(
+            "INSERT INTO entries (Song_Id,Name,Client_Id) VALUES (:par_song_id,:par_name,:par_client_id) RETURNING entries.ID;")
+        cur = conn.execute(stmt, {"par_song_id": song_id, "par_name": name,
+                                  "par_client_id": client_id})  # type: ignore
+        conn.commit()
+    return cur.fetchone()[0]  # type: ignore
+
+
+def add_sung_song(entry_id):
+    with get_db_engine().connect() as conn:
+        stmt = text("SELECT Song_Id FROM entries WHERE Id=:par_entry_id")
+        cur = conn.execute(stmt, {"par_entry_id": entry_id})  # type: ignore
+        song_id = cur.fetchone()[0]  # type: ignore
+        stmt = text(
+            "INSERT INTO done_songs (Song_Id,Plays) VALUES (:par_song_id,1) ON DUPLICATE KEY UPDATE Plays=Plays + 1;")
+        conn.execute(stmt, {"par_song_id": song_id})  # type: ignore
+        conn.commit()
+        delete_entry(entry_id)
+    return True
+
+
+def toggle_transferred(entry_id):
+    with get_db_engine().connect() as conn:
+        cur = conn.execute(text("SELECT Transferred FROM entries WHERE ID = :par_entry_id"),
+                           {"par_entry_id": entry_id})  # type: ignore
+        marked = cur.fetchall()[0][0]
+        if (marked == 0):
+            conn.execute(text("UPDATE entries SET Transferred = 1 WHERE ID = :par_entry_id"),
+                         {"par_entry_id": entry_id})  # type: ignore
+        else:
+            conn.execute(text("UPDATE entries SET Transferred = 0 WHERE ID = :par_entry_id"),
+                         {"par_entry_id": entry_id})  # type: ignore
+        conn.commit()
+    return True
+
+
+def check_entry_quota(client_id):
+    with get_db_engine().connect() as conn:
+        cur = conn.execute(text("SELECT Count(*) FROM entries WHERE entries.Client_Id = :par_client_id"),
+                           {"par_client_id": client_id})  # type: ignore
+    return cur.fetchall()[0][0]
+
+
+def check_queue_length():
+    with get_db_engine().connect() as conn:
+        cur = conn.execute(text("SELECT Count(*) FROM entries"))
+    return cur.fetchall()[0][0]
+
+
+def clear_played_songs():
+    with get_db_engine().connect() as conn:
+        conn.execute(text("DELETE FROM done_songs"))
+        conn.commit()
+    return True
+
+
+def get_entry(id):
+    try:
+        with get_db_engine().connect() as conn:
+            cur = conn.execute(text("SELECT * FROM Liste WHERE entry_ID = :par_id"),
+                               {"par_id": id})  # type: ignore
+        return cur.fetchall()[0]
+    except Exception:
+        return None
+
+
+def get_raw_entry(id):
+    try:
+        with get_db_engine().connect() as conn:
+            cur = conn.execute(text("SELECT * FROM entries WHERE ID = :par_id"),
+                               {"par_id": id})  # type: ignore
+        return cur.fetchall()[0]
+    except Exception:
+        return None
+
+
+def delete_entry(id):
+    with get_db_engine().connect() as conn:
+        conn.execute(text("DELETE FROM entries WHERE id= :par_id"), {
+                     "par_id": id})  # type: ignore
+        conn.commit()
+    return True
+
+
+def delete_entries(ids):
+    idlist = []
+    for x in ids:
+        idlist.append((x,))
+    try:
+        with get_db_engine().connect() as conn:
+            cur = conn.execute(text("DELETE FROM entries WHERE id= :par_id"), {
+                               "par_id": idlist})
+            conn.commit()
+        return cur.rowcount
+    except Exception:
+        return -1
+
+
+def delete_all_entries() -> bool:
+    with get_db_engine().connect() as conn:
+        conn.execute(text("DELETE FROM entries"))
+        conn.commit()
+    return True
+
+
+def get_config(key: str) -> str:
+    try:
+        with get_db_engine().connect() as conn:
+            cur = conn.execute(
+                text("SELECT `Value` FROM config WHERE `Key`= :par_key"), {"par_key": key})  # type: ignore
+            conn.commit()
+        return cur.fetchall()[0][0]
+    except IndexError:
+        return ""
+
+
+def set_config(key: str, value: str) -> bool:
+    print(f"Setting config {key} to {value}")
+    with get_db_engine().connect() as conn:
+        conn.execute(text(
+            "INSERT INTO config (`Key`, `Value`) VALUES ( :par_key , :par_value) ON DUPLICATE KEY UPDATE `Value`= :par_value"),
+            {"par_key": key, "par_value": value}
+        )  # type: ignore
+        conn.commit()
+    return True
+
+
+def get_config_list() -> dict:
+    with get_db_engine().connect() as conn:
+        cur = conn.execute(text("SELECT * FROM config"))
+        result_dict = {}
+        for row in cur.fetchall():
+            result_dict[row[0]] = row[1]
+    return result_dict
+
+
+def check_config_table() -> bool:
+    with get_db_engine().connect() as conn:
+        if conn.dialect.has_table(conn, 'config'):
+            # type: ignore
+            # type: ignore
+            if (conn.execute(text("SELECT COUNT(*) FROM config")).fetchone()[0] > 0):  # type: ignore
+                return True
+            else:
+                return False
+        else:
+            return False
+
+
+def init_event_id() -> bool:
+    if not get_config("EventID"):
+        set_config("EventID", str(uuid.uuid4()))
+    return True
+
+
+def reset_event_id() -> bool:
+    set_config("EventID", str(uuid.uuid4()))
+    return True
+
+
+def get_event_id() -> str:
+    return get_config("EventID")

backend/helpers.py

@@ -0,0 +1,177 @@
+import requests
+from bs4 import BeautifulSoup
+import os
+import uuid
+from flask import make_response, Flask
+from functools import wraps, update_wrapper
+from datetime import datetime
+import database
+
+
+def get_catalog_url():
+    r = requests.get('https://www.karafun.de/karaoke-song-list.html')
+    soup = BeautifulSoup(r.content, 'html.parser')
+    url = soup.findAll(
+        'a', href=True, text='Verfügbar in CSV-Format')[0]['href']
+    return url
+
+
+def get_songs(url):
+    r = requests.get(url)
+    return r.text
+
+
+def is_valid_uuid(val):
+    try:
+        uuid.UUID(str(val))
+        return True
+    except ValueError:
+        return False
+
+
+def check_config_exists():
+    return database.check_config_table()
+
+
+def load_version(app: Flask):
+    if os.environ.get("SOURCE_VERSION"):
+        app.config['VERSION'] = os.environ.get("SOURCE_VERSION")[0:7]  # type: ignore # noqa: E501
+    elif os.path.isfile(".version"):
+        with open('.version', 'r') as file:
+            data = file.read().replace('\n', '')
+            if data:
+                app.config['VERSION'] = data
+            else:
+                app.config['VERSION'] = ""
+    else:
+        app.config['VERSION'] = ""
+
+
+def load_dbconfig(app: Flask):
+    if os.environ.get("FLASK_ENV") == "development":
+        app.config['DBCONNSTRING'] = os.environ.get("DBSTRING")
+    else:
+        if os.environ.get("DEPLOYMENT_PLATFORM") == "Heroku":
+            if os.environ.get("JAWSDB_MARIA_URL"):
+                app.config['DBCONNSTRING'] = os.environ.get("JAWSDB_MARIA_URL")
+            else:
+                app.config['DBCONNSTRING'] = ""
+        if os.environ.get("DEPLOYMENT_PLATFORM") == "Docker":
+            if os.environ.get("DBSTRING"):
+                app.config['DBCONNSTRING'] = os.environ.get("DBSTRING")
+            else:
+                app.config['DBCONNSTRING'] = ""
+        elif os.path.isfile(".dbconn"):
+            with open('.dbconn', 'r') as file:
+                data = file.read().replace('\n', '')
+                if data:
+                    app.config['DBCONNSTRING'] = data
+                else:
+                    app.config['DBCONNSTRING'] = ""
+        else:
+            exit("""No database connection string found. Cannot continue.
+                 Please set the environment variable DBSTRING or
+                 create a file .dbconn in the root directory of the project.""")
+
+# Check if config exists in DB, if not, create it.
+
+
+def setup_config(app: Flask):
+    if check_config_exists() is False:
+        print("No config found, creating new config")
+        initial_username = os.environ.get("INITIAL_USERNAME")
+        initial_password = os.environ.get("INITIAL_PASSWORD")
+        if initial_username is None:
+            print(
+                "No initial username set. Please set the environment variable INITIAL_USERNAME")
+            exit()
+        if initial_password is None:
+            print(
+                "No initial password set. Please set the environment variable INITIAL_PASSWORD")
+            exit()
+        default_config = {'username': initial_username,
+                          'password': initial_password,
+                          'entryquota': 3,
+                          'maxqueue': 20,
+                          'entries_allowed': 1,
+                          'theme': 'default.css'}
+        for key, value in default_config.items():
+            database.set_config(key, value)
+        print("Created new config")
+        database.init_event_id()
+    config = database.get_config_list()
+    app.config['BASIC_AUTH_USERNAME'] = config['username']
+    app.config['BASIC_AUTH_PASSWORD'] = config['password']
+    app.config['ENTRY_QUOTA'] = config['entryquota']
+    app.config['MAX_QUEUE'] = config['maxqueue']
+    app.config['ENTRIES_ALLOWED'] = bool(config['entries_allowed'])
+    app.config['THEME'] = config['theme']
+    app.config['EVENT_ID'] = database.get_event_id()
+
+# set queue admittance
+
+
+def set_accept_entries(app: Flask, allowed: bool):
+    if allowed:
+        app.config['ENTRIES_ALLOWED'] = True
+        database.set_config('entries_allowed', '1')
+    else:
+        app.config['ENTRIES_ALLOWED'] = False
+        database.set_config('entries_allowed', '0')
+
+# get queue admittance
+
+
+def get_accept_entries(app: Flask) -> bool:
+    state = bool(int(database.get_config('entries_allowed')))
+    app.config['ENTRIES_ALLOWED'] = state
+    return state
+
+
+# Write settings from current app.config to DB
+def persist_config(app: Flask):
+    config = {'username': app.config['BASIC_AUTH_USERNAME'], 'password': app.config['BASIC_AUTH_PASSWORD'],
+              'entryquota': app.config['ENTRY_QUOTA'], 'maxqueue': app.config['MAX_QUEUE']}
+    for key, value in config.items():
+        database.set_config(key, value)
+
+# Get available themes from themes directory
+
+
+def get_themes():
+    themes = []
+    for theme in os.listdir('./static/css/themes'):
+        themes.append(theme)
+    return themes
+
+# Set theme
+
+
+def set_theme(app: Flask, theme: str):
+    if theme in get_themes():
+        app.config['THEME'] = theme
+        database.set_config('theme', theme)
+    else:
+        print("Theme not found, not setting theme.")
+
+
+def get_current_event_id(app: Flask):
+    return app.config['EVENT_ID']
+
+
+def reset_current_event_id(app: Flask):
+    database.reset_event_id()
+    app.config['EVENT_ID'] = database.get_event_id()
+
+
+def nocache(view):
+    @wraps(view)
+    def no_cache(*args, **kwargs):
+        response = make_response(view(*args, **kwargs))
+        response.headers['Last-Modified'] = datetime.now()  # type: ignore
+        response.headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0, max-age=0'
+        response.headers['Pragma'] = 'no-cache'
+        response.headers['Expires'] = '-1'
+        return response
+
+    return update_wrapper(no_cache, view)

backend/main.py

@@ -0,0 +1,4 @@
+from app import app
+
+if __name__ == "__main__":
+    app.run()

backend/requirements.txt

@@ -0,0 +1,30 @@
+autopep8
+beautifulsoup4
+bs4
+certifi
+charset-normalizer
+click
+Flask
+Flask-BasicAuth
+greenlet
+gunicorn
+idna
+itsdangerous
+Jinja2
+mariadb
+MarkupSafe
+mysql
+mysqlclient
+numpy
+pandas
+pycodestyle
+PyMySQL
+python-dateutil
+pytz
+requests
+six
+soupsieve
+SQLAlchemy
+toml
+urllib3
+Werkzeug

backend/static/css/style.css

@@ -0,0 +1,194 @@
+:root {
+    /* Navbar */
+    --navbar-background-color: #343a40;
+    --navbar-text-color: rgba(255, 255, 255, .5);
+    --navbar-text-color-hover: rgba(255, 255, 255, .75);
+    --navbar-text-color-active: rgba(255, 255, 255, 1);
+
+    /* Common */
+    --background-color: #ffffff;
+    --background-color-var: #f5f5f5;
+    --text-color: #212529;
+    --text-color-var: #343a40;
+
+    /* Modals */
+    --modal-background-color: #ffffff;
+    --modal-separator-color: #dee2e6;
+    --modal-close-color: #212529;
+
+    /* Tables */
+    --table-border-color: #dee2e6;
+
+    /* Input */
+    --input-background-color: #ffffff;
+}
+
+
+body {
+    padding-top: 5rem;
+    background-color: var(--background-color);
+}
+
+html,
+body {
+    height: 100%;
+}
+
+.site {
+    height: auto;
+    min-height: 100%;
+}
+
+main {
+    padding-bottom: 60px;
+    /* Höhe des Footers */
+}
+
+.footer {
+    margin-top: -60px;
+    width: 100%;
+    height: 60px;
+    /* Set the fixed height of the footer here */
+    /*line-height: 60px; /* Vertically center the text there */
+    background-color: var(--background-color-var);
+}
+
+.topbutton {
+    width: 100%;
+}
+
+table td {
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+
+table.entries tbody tr[data-index="0"] {
+    background-color: #007bff80;
+    font-weight: 600;
+}
+
+table.entries tbody tr[data-index="1"] {
+    background-color: #007bff40;
+    font-weight: 500;
+}
+
+table.entries tbody tr[data-index="2"] {
+    background-color: #007bff20;
+    font-weight: 400;
+}
+
+table.entries tbody tr[data-index="3"] {
+    background-color: #007bff10;
+}
+
+table td:first-child {
+    max-width: 200px !important;
+}
+
+.fa-solid {
+    vertical-align: auto;
+}
+
+@media (min-width: 768px) {
+    .topbutton {
+        width: auto;
+    }
+}
+
+@media print {
+    body {
+        font-size: 1.3em;
+    }
+
+    .footer {
+        display: none !important;
+    }
+
+    .admincontrols {
+        display: none;
+    }
+}
+
+body {
+    background-color: var(--background-color);
+    color: var(--text-color);
+}
+
+.footer {
+    background-color: var(--background-color-var);
+}
+
+.modal-content {
+    background-color: var(--background-color);
+    color: var(--text-color);
+}
+
+.modal-header {
+    background-color: var(--background-color);
+    color: var(--text-color-var);
+    border-color: var(var(--modal-separator-color));
+}
+
+.modal-footer {
+    background-color: var(--background-color);
+    color: var(--text-color-var);
+    border-color: var(var(--modal-separator-color));
+}
+
+.form-control {
+    background-color: var(--input-background-color);
+    color: var(--text-color)
+}
+
+.form-control:focus {
+    background-color: var(--input-background-color);
+    color: var(--text-color)
+}
+
+.table td,
+.table th {
+    border-color: var(--table-border-color)
+}
+
+.table thead th {
+    border-color: var(--table-border-color)
+}
+
+table td.buttoncell {
+    text-align: end;
+}
+
+.close {
+    color: var(--text-color)
+}
+
+pre {
+    color: var(--text-color-var)
+}
+
+@media (prefers-color-scheme: dark) {
+    :root {
+        /* Navbar */
+        --navbar-background-color: #343a40;
+        --navbar-text-color: rgba(255, 255, 255, .5);
+        --navbar-text-color-hover: rgba(255, 255, 255, .75);
+        --navbar-text-color-active: rgba(255, 255, 255, 1);
+
+        /* Common */
+        --background-color: #121212;
+        --background-color-var: #232323;
+        --text-color: #f5f5f5;
+        --text-color-var: #a2a2a2;
+
+        /* Modals */
+        --modal-background-color: #121212;
+        --modal-separator-color: #232323;
+        --modal-close-color: #f5f5f5;
+
+        /* Tables */
+        --table-border-color: #232323;
+
+        /* Input */
+        --input-background-color: #343434;
+    }
+}

backend/static/css/themes/stuk.css

@@ -0,0 +1,91 @@
+.navbar {
+    background: #090a28 !important;
+}
+
+.navbar .navbar-toggle:hover,
+.navbar .navbar-toggle:focus {
+    background-color: #900000 !important;
+}
+
+.navbar .navbar-toggle {
+    border: none;
+}
+
+.navbar .navbar-nav>.open>a,
+.navbar .navbar-nav>.open>a:hover,
+.navbar .navbar-nav>.open>a:focus {
+    color: #CF2323 !important;
+    background-color: #050515 !important;
+}
+
+.btn-primary {
+    background-color: #15175b;
+    border-color: #15175b;
+}
+
+.btn-primary:hover,
+.btn-primary:focus {
+    background-color: #0e103e;
+    background-position: 0 -15px;
+}
+
+.btn-primary:active,
+.btn-primary.active {
+    background-color: #0e103e;
+    border-color: #0e103e;
+}
+
+.btn-primary.disabled,
+.btn-primary:disabled,
+.btn-primary[disabled] {
+    background-color: #0e103e;
+    background-image: none;
+}
+
+.dropdown-menu>li>a:hover,
+.dropdown-menu>li>a:focus {
+    color: #8A0711;
+}
+
+.dropdown-menu>.active>a,
+.dropdown-menu>.active>a:hover,
+.dropdown-menu>.active>a:focus {
+    background-color: #2e6da4;
+    background-image: -webkit-linear-gradient(top, #337ab7 0%, #2e6da4 100%);
+    background-image: -o-linear-gradient(top, #337ab7 0%, #2e6da4 100%);
+    background-image: -webkit-gradient(linear, left top, left bottom, from(#337ab7), to(#2e6da4));
+    background-image: linear-gradient(to bottom, #337ab7 0%, #2e6da4 100%);
+    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff337ab7', endColorstr='#ff2e6da4', GradientType=0);
+    background-repeat: repeat-x;
+}
+
+.navbar .navbar-nav>li>a:hover {
+    color: #b60000;
+}
+
+.form-control:focus {
+    border-color: rgba(21, 23, 91, 0.8);
+    outline: 0;
+    -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075),
+    0 0 8px rgba(21, 23, 91, 0.6);
+    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.075) inset,
+    0 0 8px rgba(21, 23, 91, 0.6);
+}
+
+a {
+    color: #900000;
+}
+
+a:hover,
+a:focus {
+    color: #670000;
+}
+
+.navbar-brand {
+    display: flex;
+    align-items: center;
+}
+
+.navbar-brand > img {
+    height: 4rem;
+}

backend/static/manifest.webmanifest

@@ -2,12 +2,13 @@
     "name": "KaraoQueue",
     "short_name": "KaraoQueue",
     "start_url": "/",
+    "url": "https://karaoqueue-323511.appspot.com/",
     "display": "standalone",
     "background_color": "#343a40",
     "description": "Eine Karaokewarteliste.",
     "icons": [{
-        "src": "images/touch/homescreen192.png",
+        "src": "images/touch/homescreen512.png",
-        "sizes": "192x192",
+        "sizes": "512x512",
         "type": "image/png"
     }],
     "related_applications": [{

backend/templates/base.html

@@ -6,13 +6,14 @@
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
     <meta name="description" content="">
     <meta name="author" content="">
+    <meta name="color-scheme" content="light dark" />
     <link rel="icon" href="favicon.ico">
     <link rel="manifest" href="/static/manifest.webmanifest">
 
     <title>{% block title %}{% endblock %} - KaraoQueue</title>
 
     <!-- Bootstrap-Tables -->
-    <link rel="stylesheet" href="https://unpkg.com/bootstrap-table@1.15.3/dist/bootstrap-table.min.css">
+    <link rel="stylesheet" href="https://unpkg.com/bootstrap-table@1.21.2/dist/bootstrap-table.min.css">
 
     <!-- Bootstrap core CSS -->
     <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
@@ -22,12 +23,16 @@
     <link href="static/css/style.css" rel="stylesheet">
 
     <!-- Fontawesome Icons -->
-    <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.8.2/css/all.css"
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css"
-        integrity="sha384-oS3vJWv+0UjzBfQzYUhtDYW+Pj2yciDJxpsK1OYPAYjqT085Qq/1cq5FLXAZQ7Ay" crossorigin="anonymous">
+        integrity="sha512-iecdLmaskl7CVkqkXNQ/ZH/XLlvWZOJyj7Yy7tcenmpD1ypASozpmT/E0iPtmFIB46ZmdtAc9eNBvH0H/ZpiBw=="
+        crossorigin="anonymous" referrerpolicy="no-referrer" />
 
     <!-- Bootstraptoggle -->
     <link href="https://gitcdn.github.io/bootstrap-toggle/2.2.2/css/bootstrap-toggle.min.css" rel="stylesheet">
 
+    <!-- Active Theme -->
+    <link href="static/css/themes/{{config['THEME']}}" rel="stylesheet">
+
 </head>
 
 <body>
@@ -51,6 +56,9 @@
                 <li class="nav-item">
                     <a class="nav-link" href="/plays">Abspielliste</a>
                 </li>
+                <li class="nav-item">
+                    <a class="nav-link" href="/settings">Einstellungen</a>
+                </li>
                 {% endif %}
             </ul>
             <!--<form class="form-inline my-2 my-lg-0">
@@ -68,13 +76,11 @@
     <footer class="footer">
         <div class="container text-center py-3">
             {% if not auth %}
-                <a href="/login" class="ml-1 mr-1"><i
+            <a href="/login" class="ml-1 mr-1"><i class="fas fa-sign-in-alt mr-1"></i><span>Login</span></a>
-                        class="fas fa-sign-in-alt mr-1"></i><span>Login</span></a>
             {% endif %}
             <a href="https://github.com/PhoenixTwoFive/karaoqueue"
                 class="ml-1 mr-1"><i class="fab fa-github mr-1"></i><span>Github</span></a>
-            <span class="text-muted">KaraoQueue -&nbsp;<span
+            <span class="text-muted"> {{karaoqueue_version}} -&nbsp;2019-23 - Phillip
-                    style="display:inline-block;transform: rotate(180deg) translateY(-0.2rem)">&copy</span>&nbsp;2019 - Phillip
                 Kühne</span>
         </div>
     </footer>
@@ -84,28 +90,86 @@
     <!-- Placed at the end of the document so the pages load faster -->
     <script src="https://code.jquery.com/jquery-3.2.1.min.js"
         integrity="sha384-xBuQ/xzmlsLoJpyjoggmTEz8OWUFM0/RC5BsqQBDX2v5cMvDHcMakNTNrHIW2I5f" crossorigin="anonymous">
-    </script>
+        </script>
 
     <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
         integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous">
-    </script>
+        </script>
     <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
         integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous">
-    </script>
+        </script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/bootbox.js/4.4.0/bootbox.min.js"
         integrity="sha256-4F7e4JsAJyLUdpP7Q8Sah866jCOhv72zU5E8lIRER4w=" crossorigin="anonymous">
-    </script>
+        </script>
-    <script src="https://unpkg.com/bootstrap-table@1.15.3/dist/bootstrap-table.min.js"></script>
+    <script src="https://unpkg.com/bootstrap-table@1.21.2/dist/bootstrap-table.min.js"></script>
-    <script src="https://unpkg.com/bootstrap-table@1.15.3/dist/extensions/auto-refresh/bootstrap-table-auto-refresh.min.js"></script>
+    <script
+        src="https://unpkg.com/bootstrap-table@1.21.2/dist/extensions/auto-refresh/bootstrap-table-auto-refresh.min.js"></script>
     <script src="https://gitcdn.github.io/bootstrap-toggle/2.2.2/js/bootstrap-toggle.min.js"></script>
     {% block extrajs %}{% endblock %}
     <script>
         $(document).ready(function () {
+            checkEventID()
             // get current URL path and assign 'active' class
             var pathname = window.location.pathname;
             $('.navbar-nav > li > a[href="' + pathname + '"]').parent().addClass('active');
             $('[data-toggle="tooltip"]').tooltip()
         })
+
+        function create_UUID() {
+            var dt = new Date().getTime();
+            var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
+                var r = (dt + Math.random() * 16) % 16 | 0;
+                dt = Math.floor(dt / 16);
+                return (c == 'x' ? r : (r & 0x3 | 0x8)).toString(16);
+            });
+            return uuid;
+        }
+
+        function loadOrGenerateClientId() {
+            if (!localStorage.getItem("clientId")) {
+                localStorage.setItem("clientId", create_UUID())
+            }
+        }
+
+        function getClientId() {
+            return localStorage.getItem("clientId")
+        }
+
+        async function checkEventID() {
+            const localEventID = localStorage.getItem("eventID")
+            const resp = await fetch("/api/events/current")
+            const respJson = await resp.json()
+            const remoteEventID = respJson.event
+
+            if (localEventID == null || localEventID != remoteEventID) {
+                localStorage.clear()
+                localStorage.setItem("eventID", remoteEventID)
+                loadOrGenerateClientId()
+            }
+        }
+
+        function addEntry(entryId) {
+          entryArray = JSON.parse(localStorage.getItem("ownedEntries"))
+          if (entryArray == null) {
+            entryArray = []
+          }
+          entryArray.push(entryId)
+          localStorage.setItem("ownedEntries", JSON.stringify(entryArray))
+        }
+
+        function removeEntry(entryId) {
+          entryArray = JSON.parse(localStorage.getItem("ownedEntries"))
+          if (entryArray == null) {
+            entryArray = []
+          }
+          entryArray = entryArray.filter(function(value, index, arr){ return value != entryId;});
+          localStorage.setItem("ownedEntries", JSON.stringify(entryArray))
+        }
+
+        function getOwnedEntries() {
+          return JSON.parse(localStorage.getItem("ownedEntries"))
+        }
+
     </script>
 </body>
 

backend/templates/main.html

@@ -0,0 +1,71 @@
+
+
+{% extends 'base.html' %}
+{% block title %}Warteliste{% endblock %}
+{% block content %}
+<a id="bfb" role="button" class="btn btn-primary btn-lg btn-block mb-2" href="/list">Eintragen</a>
+<table class="table entries"
+        data-toggle="table"
+        data-url="/api/queue"
+        data-pagination="true"
+        data-classes="table"
+        data-show-refresh="false"
+        data-auto-refresh="true"
+        data-auto-refresh-interval="10">
+    <thead>
+        <tr>
+            <th data-field="Name">Name</th>
+            <th data-field="Title">Song</th>
+            <th data-field="Artist">Künstler</th>
+            <th scope="col" data-formatter="TableActionsFormatter"></th>
+        </tr>
+    </thead>
+</table>
+<a name="end"></a>
+{% endblock %}
+{% block extrajs %}
+<script>
+$.getJSON("/api/entries/accept", (data) => {
+    if (data["value"]==0) {
+        $("#bfb").addClass("disabled")
+        $("#bfb").prop("aria-disabled",true);
+        $("#bfb").prop("tabindex","-1");
+        $("#bfb").wrap("<span class='tooltip-span' tabindex='0' data-toggle='tooltip' data-placement='bottom'></span>");
+                $(".tooltip-span").prop("title", "Eintragungen sind leider momentan nicht möglich.")
+                $('[data-toggle="tooltip"]').tooltip()
+    }
+})
+
+function TableActionsFormatter(value,row,index) {
+    console.log("Value: " + value + ", Row: " + row + ", Index: " + index)
+    console.log(row)
+    if (getOwnedEntries().includes(row.entry_ID)) {
+      return "<button type='button' class='btn btn-danger' data-toggle='tooltip' data-placement='top' title='Eintrag zurückziehen' onclick=\"event.stopPropagation();$(this).tooltip('dispose');requestDeletionAsUser("+row["entry_ID"]+")\"><i class='fas fa-trash'></i></button>"
+    }
+    return ""
+}
+
+function requestDeletionAsUser(id) {
+  bootbox.confirm("Wirklich den Eintrag zurückziehen? Das könnte zu einer langen Wartezeit führen!", function (result) {
+    if (result) {
+        payload = {
+            "client_id": localStorage.getItem("clientId"),
+            "entry_id": id
+        }
+        $.ajax({
+            url: "/api/entries/delete/"+id,
+            type: "POST",
+            data: JSON.stringify(payload),
+            contentType: "application/json; charset=utf-8",
+            dataType: "json",
+            success: function(result) {
+                bootbox.alert("Eintrag zurückgezogen!")
+                location.reload()
+            }
+        })
+    }
+  })
+}
+
+</script>
+{% endblock %}

backend/templates/main_admin.html

@@ -0,0 +1,205 @@
+{% extends 'base.html' %}
+{% block title %}Warteliste-Admin{% endblock %}
+{% block content %}
+<style>
+    table td:nth-child(2) {
+        overflow-y: hidden;
+        overflow-x: auto;
+        text-overflow: clip;
+        max-width: 200px !important;
+    }
+</style>
+<div class="container">
+    <div id="toolbar">
+        <button type="button" class="topbutton btn btn-danger" onclick="confirmDeleteSelectedEntries()"><i
+                class="fas fa-trash mr-2"></i>Gewählte Einträge löschen</button>
+        <button type="button" class="topbutton btn btn-danger" onclick="confirmUpdateSongDatabase()"><i
+                class="fas fa-file-import mr-2"></i>Song-Datenbank
+            aktualisieren</button>
+        <input id="entryToggle" type="checkbox" class="topbutton" data-toggle="toggle" data-on="Eintragen erlaubt"
+            data-off="Eintragen deaktiviert" data-onstyle="success" data-offstyle="danger">
+    </div>
+    <table class="table entries" id="entrytable" data-toggle="table" data-search="true" data-show-columns="true"
+        data-show-toggle="true" data-multiple-select-row="true" data-click-to-select="true" data-toolbar="#toolbar"
+        data-pagination="true" data-show-extended-pagination="true" data-classes="table table-hover"
+        data-url="/api/queue" data-show-refresh="true" data-auto-refresh="true" data-auto-refresh-interval="10">
+        <thead>
+            <tr>
+                <th data-field="state" data-checkbox="true"></th>
+                <th scope="col" data-field="Name">Name</th>
+                <th scope="col" data-field="Title">Song</th>
+                <th scope="col" data-field="Artist">Künstler</th>
+                <th scope="col" data-formatter="TableActions">Aktionen</th>
+            </tr>
+        </thead>
+    </table>
+    <a name="end"></a>
+</div>
+{% endblock %}
+{% block extrajs %}
+<script>
+    $(function () {
+        refreshEntryToggle()
+        $('#entryToggle').change(function () {
+            $.ajax({ url: "/api/entries/accept/" + ($('#entryToggle').is(":checked") ? "1" : "0"), complete: setTimeout(refreshEntryToggle, 1000) });
+        })
+        $("#entrytable").bootstrapTable().on('load-success.bs.table', function () {
+            $('[data-toggle="tooltip"]').tooltip()
+        })
+        $('[data-toggle="tooltip"]').tooltip({
+            trigger: 'hover'
+        })
+    })
+    function confirmDeleteEntry(name, entry_id) {
+        bootbox.confirm("Wirklich den Eintrag von " + name + " löschen?", function (result) {
+            if (result) {
+                deleteEntry(entry_id)
+            }
+        })
+    }
+    function confirmDeleteSelectedEntries() {
+        bootbox.confirm({
+            message: "Wirklich gewählte Eintragungen löschen?",
+            buttons: {
+                confirm: {
+                    label: 'Ja',
+                    className: 'btn btn-danger'
+                },
+                cancel: {
+                    label: 'Nein',
+                    className: 'btn btn-secondary'
+                }
+            },
+            callback: function (result) {
+                if (result) {
+                    DeleteSelectedEntries(getIdSelections())
+                }
+            }
+        })
+    }
+    function confirmUpdateSongDatabase() {
+        bootbox.confirm({
+            message: "Wirklich die Song-Datenbank aktualisieren?<br>Dies lädt die Aktuelle Song-Liste von <a href='https://www.karafun.de/karaoke-song-list.html'>KaraFun</a> herunter, <b>und wird alle Eintragungen löschen!</b>",
+            buttons: {
+                confirm: {
+                    label: 'Ja',
+                    className: 'btn-primary'
+                },
+                cancel: {
+                    label: 'Nein',
+                    className: 'btn btn-secondary'
+                }
+            },
+            callback: function (result) {
+                if (result) {
+                    var dialog = bootbox.dialog({
+                        message: '<p class="text-center mb-0"><i class="fa fa-spin fa-cog"></i> Aktualisiere Song-Datenbank...</p>',
+
+                        closeButton: false
+                    });
+                    updateSongDatabase(dialog)
+                }
+            }
+        })
+    }
+    function refreshEntryToggle() {
+        $.getJSON("/api/entries/accept", (data) => {
+            if (data["value"] != $('#entryToggle').is(":checked")) {
+                if (data["value"] == 1) {
+                    $('#entryToggle').data('bs.toggle').on('true')
+                }
+                else {
+                    $('#entryToggle').data('bs.toggle').off('true')
+                }
+            }
+        })
+    }
+    function deleteEntry(entry_id) {
+        $.ajax({
+            type: 'GET',
+            url: '/api/entries/delete/' + entry_id,
+            contentType: "application/json",
+            dataType: 'json',
+            async: false
+        });
+        $("#entrytable").bootstrapTable('refresh')
+
+    }
+    function markEntryAsSung(entry_id) {
+        $.ajax({
+            type: 'GET',
+            url: '/api/entries/mark_sung/' + entry_id,
+            contentType: "application/json",
+            dataType: 'json',
+            async: false
+        });
+        $("#entrytable").bootstrapTable('refresh')
+
+    }
+
+    function markEntryAsTransferred(entry_id) {
+        $.ajax({
+            type: 'GET',
+            url: '/api/entries/mark_transferred/' + entry_id,
+            contentType: "application/json",
+            dataType: 'json',
+            async: false
+        });
+        $("#entrytable").bootstrapTable('refresh')
+
+    }
+
+    function DeleteSelectedEntries(ids) {
+        $.ajax({
+            type: 'POST',
+            url: '/api/entries/delete',
+            data: JSON.stringify(ids), // or JSON.stringify ({name: 'jonas'}),
+            error: function () {
+                bootbox.alert({
+                    message: "Fehler beim Löschen der Eintragungen.",
+                })
+            },
+            success: function () {
+                $("#entrytable").bootstrapTable('refresh')
+
+            },
+            contentType: "application/json",
+            dataType: 'json'
+        });
+    }
+    function updateSongDatabase(wait_dialog) {
+        $.ajax({
+            type: 'GET',
+            url: '/api/songs/update',
+            contentType: "application/json",
+            dataType: 'json',
+            success: function (data) {
+                wait_dialog.modal('hide')
+                bootbox.alert({
+                    message: data["status"],
+                    callback: function () {
+                        $("#entrytable").bootstrapTable('refresh')
+                    }
+                })
+            }
+        });
+    }
+    function TableActions(value, row, index) {
+        console.log("Value: " + value + ", Row: " + row + ", Index: " + index)
+        console.log(row)
+        let outerHTML = ""
+        if (row.Transferred == 1) {
+            outerHTML = "<button type=\"button\" class=\"btn btn-default\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"Markierung zurückziehen\" onclick=\"event.stopPropagation();$(this).tooltip('dispose');markEntryAsTransferred(" + row.entry_ID + ")\"><i class=\"fas fa-backward\"></i></button>&nbsp;<button type=\"button\" class=\"btn btn-success\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"Als gesungen markieren\" onclick=\"event.stopPropagation();$(this).tooltip('dispose');markEntryAsSung(" + row.entry_ID + ")\"><i class=\"fas fa-check\"></i></button>&nbsp;<button type=\"button\" class=\"btn btn-danger\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"Eintrag löschen\" onclick=\"event.stopPropagation();$(this).tooltip('dispose');confirmDeleteEntry('" + row.Name + "'," + row.entry_ID + ")\"><i class=\"fas fa-trash\"></i></button>";
+        } else {
+            outerHTML = "<button type=\"button\" class=\"btn btn-info\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"Als übertragen markieren\" onclick=\"event.stopPropagation();$(this).tooltip('dispose');markEntryAsTransferred(" + row.entry_ID + ")\"><i class=\"fas fa-exchange-alt\"></i></button>&nbsp;<button type=\"button\" class=\"btn btn-success\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"Als gesungen markieren\" onclick=\"event.stopPropagation();$(this).tooltip('dispose');markEntryAsSung(" + row.entry_ID + ")\"><i class=\"fas fa-check\"></i></button>&nbsp;<button type=\"button\" class=\"btn btn-danger\" data-toggle=\"tooltip\" data-placement=\"top\" title=\"Eintrag löschen\" onclick=\"event.stopPropagation();$(this).tooltip('dispose');confirmDeleteEntry('" + row.Name + "'," + row.entry_ID + ")\"><i class=\"fas fa-trash\"></i></button>";
+        }
+        return outerHTML;
+    }
+
+    function getIdSelections() {
+        return $.map($("#entrytable").bootstrapTable('getSelections'), function (row) {
+            return row.entry_ID
+        })
+    }
+</script>
+{% endblock %}

backend/templates/played_list.html

@@ -38,8 +38,8 @@
 </table>
 {% endblock %}
 {% block extrajs %}
-<script src="https://unpkg.com/jspdf@latest/dist/jspdf.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.5.3/jspdf.min.js"></script>
-<script src="https://unpkg.com/jspdf-autotable@3.1.1/dist/jspdf.plugin.autotable.js"></script>
+<script src="https://unpkg.com/jspdf-autotable@3.0.10/dist/jspdf.plugin.autotable.js"></script>
 <script>
     function confirmDeleteAllEntries() {
         bootbox.confirm({

backend/templates/settings.html

@@ -0,0 +1,41 @@
+{% extends 'base.html' %}
+{% block title %}Einstellungen{% endblock %}
+{% block content %}
+<form method="post">
+    <p>
+        <label for="entryquota">Maximale Anzahl an Einträgen pro Nutzer</label>
+        <input type="number" class="form-control" id="entryquota" name="entryquota" min=1 value={{app.config['ENTRY_QUOTA']}}>
+    </p>
+    <p>
+        <label for="maxqueue">Maximale Anzahl an Einträgen Insgesamt</label>
+        <input type="number" class="form-control" id="maxqueue" name="maxqueue" min=1 value={{app.config['MAX_QUEUE']}}>
+    </p>
+    <p>
+        <label for="theme">Aktives Theme</label>
+        <select class="form-control" id="theme" name="theme">
+            {% for theme in themes %}
+            <option value="{{theme}}" {% if theme == config['THEME'] %}selected{% endif %}>{{theme}}</option>
+            {% endfor %}
+        </select>
+    </p>
+    <div class="alert alert-warning" role="alert">
+        <i class="fas fa-exclamation-triangle mr-1"></i>
+        <strong>Warnung:</strong> Änderungen an den folgenden Einstellungen führen zu einer sofortigen Abmeldung!
+    </div>
+    <p>
+        <label for="username">Benutzername</label>
+        <input type="text" class="form-control" id="username" name="username" value={{app.config['BASIC_AUTH_USERNAME']}}>
+    </p>
+    <p>
+        <label for="password">Passwort ändern</label>
+        <input type="password" class="form-control" id="password" name="password">
+    </p>
+    <input type="submit" class="btn btn-primary mr-1 mb-2" value="Einstellungen anwenden">
+</form>
+<details>
+    <summary>Current config:</summary>
+    <pre>{% for key, val in config.items() %}{{key}}: {{val}}<br>{% endfor %}</pre>
+</details>
+{% endblock %}
+{% block extrajs %}
+{% endblock %}

backend/templates/songlist.html

@@ -17,8 +17,8 @@
                 </button>
             </div>
             <div class="form-group">
-            <form id="nameForm">
+                <form id="nameForm">
-                <div class="modal-body">
+                    <div class="modal-body">
                         <label for="singerNameInput">Sängername</label>
                         <input type="text" class="form-control" id="singerNameInput" placeholder="Max Mustermann"
                             required>
@@ -28,7 +28,7 @@
                         <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
                         <button type="submit" class="btn btn-primary" id="submitSongButton">Anmelden</button>
                     </div>
-            </form>
+                </form>
             </div>
         </div>
     </div>
@@ -38,18 +38,18 @@
 <script>
     $(document).ready(function () {
         $("#filter").focus();
-        $("#filter").keyup( function () {
+        $("#filter").keyup(function () {
             var value = $(this).val().toLowerCase();
             //alert(value);
-            if(value.length >= 1) {
+            if (value.length >= 1) {
                 $.getJSON("/api/songs/compl", { search: value }, function (data) {
                     var items = [];
                     $.each(data, function (key, val) {
-                        items.push("<tr><td>"+val[0]+`</td>
+                        items.push("<tr><td>" + val[0] + `</td>
-                            <td><button type='button'
+                            <td class='buttoncell'><button type='button'
                                     class='btn btn-primary justify-content-center align-content-between enqueueButton'
                                     data-toggle='modal'
-                                    data-target='#enqueueModal' onclick='setSelectedId(`+val[1]+`)'><i
+                                    data-target='#enqueueModal' onclick='setSelectedId(`+ val[1] + `)'><i
                                         class="fas fa-plus"></i></button></td>
                         </tr>`)
                     });
@@ -63,22 +63,23 @@
             }
         });
 
-        $("#nameForm").submit( function (e) {
+        $("#nameForm").submit(function (e) {
             e.preventDefault();
             submitModal();
         });
     });
 
 
-    function enqueue(id,name,success_callback, blocked_callback) {
+    function enqueue(client_id, id, name, success_callback, blocked_callback) {
         var data = {
             "name": name,
-            "id": id
+            "id": id,
+            "client_id": client_id
         }
         $.ajax({
             type: 'POST',
             url: '/api/enqueue',
-            data: JSON.stringify(data), // or JSON.stringify ({name: 'jonas'}),
+            data: JSON.stringify(data),
             success: success_callback,
             statusCode: {
                 423: blocked_callback
@@ -89,20 +90,27 @@
     }
 
     function setSelectedId(id) {
-        $("#selectedId").attr("value",id);
+        $("#selectedId").attr("value", id);
     }
 
     function submitModal() {
         var name = $("#singerNameInput").val();
         var id = $("#selectedId").attr("value");
-        enqueue(id,name,function () {
+        enqueue(localStorage.getItem("clientId"),id, name, function (response) {
+            console.log(response);
+            entryID = response["entry_id"];
+            bootbox.alert({
+                message: "Deine Eintragung wurde erfolgreich vorgenommen.",
+            });
+            console.log("Entry ID: " + entryID);
+            addEntry(entryID);
             $("#enqueueModal").modal('hide');
             window.location.href = '/#end';
-        }, function () {
+        }, function (response) {
             bootbox.alert({
-                    message: "Es werden leider keine neuen Anmeldungen mehr angenommen. Tut mir leid :(",
+                message: "Deine Eintragung konnte leider nicht vorgenommen werden.\nGrund: "+response.responseJSON.status,
-                });
+            });
-            $(".enqueueButton").prop("disabled",true);
+            entriesAccepted();
             $("#enqueueModal").modal('hide');
 
         });
@@ -110,20 +118,26 @@
 
     }
 
+    {% if not auth %}
     function entriesAccepted() {
-        $.getJSON("/api/entries/accept", (data,out) => {
+        $.getJSON("/api/entries/accept", (data, out) => {
-            if(data["value"]==0) {
+            if (data["value"] == 0) {
-                $(".enqueueButton").prop("disabled",true)
+                $(".enqueueButton").prop("disabled", true)
-                $(".enqueueButton").prop("style","pointer-events: none;")
+                $(".enqueueButton").prop("style", "pointer-events: none;")
-                $(".enqueueButton").wrap("<span class='tooltip-span' tabindex='0' data-toggle='tooltip' data-placement='top'></span>" );
+                $(".enqueueButton").wrap("<span class='tooltip-span' tabindex='0' data-toggle='tooltip' data-placement='top'></span>");
-                $(".tooltip-span").prop("title","Eintragungen sind leider nicht mehr möglich.")
+                $(".tooltip-span").prop("title", "Eintragungen sind leider momentan nicht möglich.")
                 $('[data-toggle="tooltip"]').tooltip()
             } else {
-                $(".enqueueButton").prop("disabled",false)
+                $(".enqueueButton").prop("disabled", false)
             }
 
         })
     }
+    {% else %}
+    function entriesAccepted() {
+        $(".enqueueButton").prop("disabled", false)
+    }
+    {% endif %}
 
 </script>
 {% endblock %}

docker-compose.prod.yml

@@ -0,0 +1,23 @@
+version: "3.9"
+
+secrets:
+  secrets:
+    file: ./secrets.yml
+
+services:
+  karaoqueue:
+    image: "ghcr.io/phoenixtwofive/karaoqueue:v2023.03.3"
+    build: .
+    restart: always
+    ports:
+      - "127.0.0.1:8081:80" # Please put a reverse proxy in front of this
+    env_file: .env
+  db:
+    image: mariadb
+    restart: always
+    env_file: .env 
+    volumes:
+    - karaoqueue-db:/var/lib/mysql
+
+volumes:
+  karaoqueue-db:

docker-compose.yml

@@ -0,0 +1,15 @@
+# This Compose file is for development only. It is not intended for production use.
+# It only starts auxiliary services, such as a database, that are required for the
+# application to run. The application itself is started separately, using the
+# command "python -m flask run" or your favorite IDE.
+# Useful for attaching a debugger to the application.
+
+version: "3.9"
+
+services:
+  db:
+    image: mariadb
+    restart: always
+    env_file: .env.dev
+    ports:
+      - "3306:3306"

frontend/ng-karaoqueue/.editorconfig

@@ -1,13 +0,0 @@
-# Editor configuration, see https://editorconfig.org
-root = true
-
-[*]
-charset = utf-8
-indent_style = space
-indent_size = 2
-insert_final_newline = true
-trim_trailing_whitespace = true
-
-[*.md]
-max_line_length = off
-trim_trailing_whitespace = false

frontend/ng-karaoqueue/.gitignore

@@ -1,46 +0,0 @@
-# See http://help.github.com/ignore-files/ for more about ignoring files.
-
-# compiled output
-/dist
-/tmp
-/out-tsc
-# Only exists if Bazel was run
-/bazel-out
-
-# dependencies
-/node_modules
-
-# profiling files
-chrome-profiler-events*.json
-speed-measure-plugin*.json
-
-# IDEs and editors
-/.idea
-.project
-.classpath
-.c9/
-*.launch
-.settings/
-*.sublime-workspace
-
-# IDE - VSCode
-.vscode/*
-!.vscode/settings.json
-!.vscode/tasks.json
-!.vscode/launch.json
-!.vscode/extensions.json
-.history/*
-
-# misc
-/.sass-cache
-/connect.lock
-/coverage
-/libpeerconnection.log
-npm-debug.log
-yarn-error.log
-testem.log
-/typings
-
-# System Files
-.DS_Store
-Thumbs.db

frontend/ng-karaoqueue/README.md

@@ -1,27 +0,0 @@
-# NgKaraoqueue
-
-This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 8.3.20.
-
-## Development server
-
-Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The app will automatically reload if you change any of the source files.
-
-## Code scaffolding
-
-Run `ng generate component component-name` to generate a new component. You can also use `ng generate directive|pipe|service|class|guard|interface|enum|module`.
-
-## Build
-
-Run `ng build` to build the project. The build artifacts will be stored in the `dist/` directory. Use the `--prod` flag for a production build.
-
-## Running unit tests
-
-Run `ng test` to execute the unit tests via [Karma](https://karma-runner.github.io).
-
-## Running end-to-end tests
-
-Run `ng e2e` to execute the end-to-end tests via [Protractor](http://www.protractortest.org/).
-
-## Further help
-
-To get more help on the Angular CLI use `ng help` or go check out the [Angular CLI README](https://github.com/angular/angular-cli/blob/master/README.md).

frontend/ng-karaoqueue/angular.json

@@ -1,128 +0,0 @@
-{
-  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
-  "version": 1,
-  "newProjectRoot": "projects",
-  "projects": {
-    "ng-karaoqueue": {
-      "projectType": "application",
-      "schematics": {},
-      "root": "",
-      "sourceRoot": "src",
-      "prefix": "app",
-      "architect": {
-        "build": {
-          "builder": "@angular-devkit/build-angular:browser",
-          "options": {
-            "outputPath": "dist/ng-karaoqueue",
-            "index": "src/index.html",
-            "main": "src/main.ts",
-            "polyfills": "src/polyfills.ts",
-            "tsConfig": "tsconfig.app.json",
-            "aot": false,
-            "assets": [
-              "src/favicon.ico",
-              "src/assets"
-            ],
-            "styles": [
-              "./node_modules/@angular/material/prebuilt-themes/indigo-pink.css",
-              "src/styles.css"
-            ],
-            "scripts": []
-          },
-          "configurations": {
-            "production": {
-              "fileReplacements": [
-                {
-                  "replace": "src/environments/environment.ts",
-                  "with": "src/environments/environment.prod.ts"
-                }
-              ],
-              "optimization": true,
-              "outputHashing": "all",
-              "sourceMap": false,
-              "extractCss": true,
-              "namedChunks": false,
-              "aot": true,
-              "extractLicenses": true,
-              "vendorChunk": false,
-              "buildOptimizer": true,
-              "budgets": [
-                {
-                  "type": "initial",
-                  "maximumWarning": "2mb",
-                  "maximumError": "5mb"
-                },
-                {
-                  "type": "anyComponentStyle",
-                  "maximumWarning": "6kb",
-                  "maximumError": "10kb"
-                }
-              ]
-            }
-          }
-        },
-        "serve": {
-          "builder": "@angular-devkit/build-angular:dev-server",
-          "options": {
-            "browserTarget": "ng-karaoqueue:build"
-          },
-          "configurations": {
-            "production": {
-              "browserTarget": "ng-karaoqueue:build:production"
-            }
-          }
-        },
-        "extract-i18n": {
-          "builder": "@angular-devkit/build-angular:extract-i18n",
-          "options": {
-            "browserTarget": "ng-karaoqueue:build"
-          }
-        },
-        "test": {
-          "builder": "@angular-devkit/build-angular:karma",
-          "options": {
-            "main": "src/test.ts",
-            "polyfills": "src/polyfills.ts",
-            "tsConfig": "tsconfig.spec.json",
-            "karmaConfig": "karma.conf.js",
-            "assets": [
-              "src/favicon.ico",
-              "src/assets"
-            ],
-            "styles": [
-              "./node_modules/@angular/material/prebuilt-themes/indigo-pink.css",
-              "src/styles.css"
-            ],
-            "scripts": []
-          }
-        },
-        "lint": {
-          "builder": "@angular-devkit/build-angular:tslint",
-          "options": {
-            "tsConfig": [
-              "tsconfig.app.json",
-              "tsconfig.spec.json",
-              "e2e/tsconfig.json"
-            ],
-            "exclude": [
-              "**/node_modules/**"
-            ]
-          }
-        },
-        "e2e": {
-          "builder": "@angular-devkit/build-angular:protractor",
-          "options": {
-            "protractorConfig": "e2e/protractor.conf.js",
-            "devServerTarget": "ng-karaoqueue:serve"
-          },
-          "configurations": {
-            "production": {
-              "devServerTarget": "ng-karaoqueue:serve:production"
-            }
-          }
-        }
-      }
-    }
-  },
-  "defaultProject": "ng-karaoqueue"
-}

frontend/ng-karaoqueue/browserslist

@@ -1,12 +0,0 @@
-# This file is used by the build system to adjust CSS and JS output to support the specified browsers below.
-# For additional information regarding the format and rule options, please see:
-# https://github.com/browserslist/browserslist#queries
-
-# You can see what browsers were selected by your queries by running:
-#   npx browserslist
-
-> 0.5%
-last 2 versions
-Firefox ESR
-not dead
-not IE 9-11 # For IE 9-11 support, remove 'not'.

frontend/ng-karaoqueue/e2e/protractor.conf.js

@@ -1,32 +0,0 @@
-// @ts-check
-// Protractor configuration file, see link for more information
-// https://github.com/angular/protractor/blob/master/lib/config.ts
-
-const { SpecReporter } = require('jasmine-spec-reporter');
-
-/**
- * @type { import("protractor").Config }
- */
-exports.config = {
-  allScriptsTimeout: 11000,
-  specs: [
-    './src/**/*.e2e-spec.ts'
-  ],
-  capabilities: {
-    browserName: 'chrome'
-  },
-  directConnect: true,
-  baseUrl: 'http://localhost:4200/',
-  framework: 'jasmine',
-  jasmineNodeOpts: {
-    showColors: true,
-    defaultTimeoutInterval: 30000,
-    print: function() {}
-  },
-  onPrepare() {
-    require('ts-node').register({
-      project: require('path').join(__dirname, './tsconfig.json')
-    });
-    jasmine.getEnv().addReporter(new SpecReporter({ spec: { displayStacktrace: true } }));
-  }
-};

frontend/ng-karaoqueue/e2e/src/app.e2e-spec.ts

@@ -1,23 +0,0 @@
-import { AppPage } from './app.po';
-import { browser, logging } from 'protractor';
-
-describe('workspace-project App', () => {
-  let page: AppPage;
-
-  beforeEach(() => {
-    page = new AppPage();
-  });
-
-  it('should display welcome message', () => {
-    page.navigateTo();
-    expect(page.getTitleText()).toEqual('ng-karaoqueue app is running!');
-  });
-
-  afterEach(async () => {
-    // Assert that there are no errors emitted from the browser
-    const logs = await browser.manage().logs().get(logging.Type.BROWSER);
-    expect(logs).not.toContain(jasmine.objectContaining({
-      level: logging.Level.SEVERE,
-    } as logging.Entry));
-  });
-});

frontend/ng-karaoqueue/e2e/src/app.po.ts

@@ -1,11 +0,0 @@
-import { browser, by, element } from 'protractor';
-
-export class AppPage {
-  navigateTo() {
-    return browser.get(browser.baseUrl) as Promise<any>;
-  }
-
-  getTitleText() {
-    return element(by.css('app-root .content span')).getText() as Promise<string>;
-  }
-}

frontend/ng-karaoqueue/e2e/tsconfig.json

@@ -1,13 +0,0 @@
-{
-  "extends": "../tsconfig.json",
-  "compilerOptions": {
-    "outDir": "../out-tsc/e2e",
-    "module": "commonjs",
-    "target": "es5",
-    "types": [
-      "jasmine",
-      "jasminewd2",
-      "node"
-    ]
-  }
-}

frontend/ng-karaoqueue/karma.conf.js

@@ -1,32 +0,0 @@
-// Karma configuration file, see link for more information
-// https://karma-runner.github.io/1.0/config/configuration-file.html
-
-module.exports = function (config) {
-  config.set({
-    basePath: '',
-    frameworks: ['jasmine', '@angular-devkit/build-angular'],
-    plugins: [
-      require('karma-jasmine'),
-      require('karma-chrome-launcher'),
-      require('karma-jasmine-html-reporter'),
-      require('karma-coverage-istanbul-reporter'),
-      require('@angular-devkit/build-angular/plugins/karma')
-    ],
-    client: {
-      clearContext: false // leave Jasmine Spec Runner output visible in browser
-    },
-    coverageIstanbulReporter: {
-      dir: require('path').join(__dirname, './coverage/ng-karaoqueue'),
-      reports: ['html', 'lcovonly', 'text-summary'],
-      fixWebpackSourcePaths: true
-    },
-    reporters: ['progress', 'kjhtml'],
-    port: 9876,
-    colors: true,
-    logLevel: config.LOG_INFO,
-    autoWatch: true,
-    browsers: ['Chrome'],
-    singleRun: false,
-    restartOnFileChange: true
-  });
-};

frontend/ng-karaoqueue/package.json

@@ -1,50 +0,0 @@
-{
-  "name": "ng-karaoqueue",
-  "version": "0.0.0",
-  "scripts": {
-    "ng": "ng",
-    "start": "ng serve",
-    "build": "ng build",
-    "test": "ng test",
-    "lint": "ng lint",
-    "e2e": "ng e2e"
-  },
-  "private": true,
-  "dependencies": {
-    "@angular/animations": "~8.2.14",
-    "@angular/cdk": "~8.2.3",
-    "@angular/common": "~8.2.14",
-    "@angular/compiler": "~8.2.14",
-    "@angular/core": "~8.2.14",
-    "@angular/forms": "~8.2.14",
-    "@angular/material": "^8.2.3",
-    "@angular/platform-browser": "~8.2.14",
-    "@angular/platform-browser-dynamic": "~8.2.14",
-    "@angular/router": "~8.2.14",
-    "hammerjs": "^2.0.8",
-    "rxjs": "~6.4.0",
-    "tslib": "^1.10.0",
-    "zone.js": "~0.9.1"
-  },
-  "devDependencies": {
-    "@angular-devkit/build-angular": "~0.803.20",
-    "@angular/cli": "~8.3.20",
-    "@angular/compiler-cli": "~8.2.14",
-    "@angular/language-service": "~8.2.14",
-    "@types/node": "~8.9.4",
-    "@types/jasmine": "~3.3.8",
-    "@types/jasminewd2": "~2.0.3",
-    "codelyzer": "^5.0.0",
-    "jasmine-core": "~3.4.0",
-    "jasmine-spec-reporter": "~4.2.1",
-    "karma": "~4.1.0",
-    "karma-chrome-launcher": "~2.2.0",
-    "karma-coverage-istanbul-reporter": "~2.0.1",
-    "karma-jasmine": "~2.0.1",
-    "karma-jasmine-html-reporter": "^1.4.0",
-    "protractor": "~5.4.0",
-    "ts-node": "~7.0.0",
-    "tslint": "~5.15.0",
-    "typescript": "~3.5.3"
-  }
-}

frontend/ng-karaoqueue/src/app/app-routing.module.ts

@@ -1,11 +0,0 @@
-import { NgModule } from '@angular/core';
-import { Routes, RouterModule } from '@angular/router';
-
-
-const routes: Routes = [];
-
-@NgModule({
-  imports: [RouterModule.forRoot(routes)],
-  exports: [RouterModule]
-})
-export class AppRoutingModule { }

frontend/ng-karaoqueue/src/app/app.component.html

@@ -1,6 +0,0 @@
-<div>
-  <mat-toolbar color="primary">
-    <span>KaraoQueue</span>
-  </mat-toolbar>
-</div>
-<router-outlet></router-outlet>

frontend/ng-karaoqueue/src/app/app.component.spec.ts

@@ -1,35 +0,0 @@
-import { TestBed, async } from '@angular/core/testing';
-import { RouterTestingModule } from '@angular/router/testing';
-import { AppComponent } from './app.component';
-
-describe('AppComponent', () => {
-  beforeEach(async(() => {
-    TestBed.configureTestingModule({
-      imports: [
-        RouterTestingModule
-      ],
-      declarations: [
-        AppComponent
-      ],
-    }).compileComponents();
-  }));
-
-  it('should create the app', () => {
-    const fixture = TestBed.createComponent(AppComponent);
-    const app = fixture.debugElement.componentInstance;
-    expect(app).toBeTruthy();
-  });
-
-  it(`should have as title 'ng-karaoqueue'`, () => {
-    const fixture = TestBed.createComponent(AppComponent);
-    const app = fixture.debugElement.componentInstance;
-    expect(app.title).toEqual('ng-karaoqueue');
-  });
-
-  it('should render title', () => {
-    const fixture = TestBed.createComponent(AppComponent);
-    fixture.detectChanges();
-    const compiled = fixture.debugElement.nativeElement;
-    expect(compiled.querySelector('.content span').textContent).toContain('ng-karaoqueue app is running!');
-  });
-});

frontend/ng-karaoqueue/src/app/app.component.ts

@@ -1,10 +0,0 @@
-import { Component } from '@angular/core';
-
-@Component({
-  selector: 'app-root',
-  templateUrl: './app.component.html',
-  styleUrls: ['./app.component.css']
-})
-export class AppComponent {
-  title = 'KaraoQueue';
-}

frontend/ng-karaoqueue/src/app/app.module.ts

@@ -1,24 +0,0 @@
-import { BrowserModule } from '@angular/platform-browser';
-import { NgModule } from '@angular/core';
-
-import { AppRoutingModule } from './app-routing.module';
-import { AppComponent } from './app.component';
-import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
-import { MatSliderModule } from '@angular/material/slider';
-import { MatToolbarModule } from '@angular/material/toolbar'
-
-@NgModule({
-  declarations: [
-    AppComponent
-  ],
-  imports: [
-    BrowserModule,
-    AppRoutingModule,
-    BrowserAnimationsModule,
-    MatSliderModule,
-    MatToolbarModule
-  ],
-  providers: [],
-  bootstrap: [AppComponent]
-})
-export class AppModule { }

frontend/ng-karaoqueue/src/environments/environment.prod.ts

@@ -1,3 +0,0 @@
-export const environment = {
-  production: true
-};

frontend/ng-karaoqueue/src/environments/environment.ts

@@ -1,16 +0,0 @@
-// This file can be replaced during build by using the `fileReplacements` array.
-// `ng build --prod` replaces `environment.ts` with `environment.prod.ts`.
-// The list of file replacements can be found in `angular.json`.
-
-export const environment = {
-  production: false
-};
-
-/*
- * For easier debugging in development mode, you can import the following file
- * to ignore zone related error stack frames such as `zone.run`, `zoneDelegate.invokeTask`.
- *
- * This import should be commented out in production mode because it will have a negative impact
- * on performance if an error is thrown.
- */
-// import 'zone.js/dist/zone-error';  // Included with Angular CLI.

frontend/ng-karaoqueue/src/index.html

@@ -1,15 +0,0 @@
-<!doctype html>
-<html lang="en">
-<head>
-  <meta charset="utf-8">
-  <title>NgKaraoqueue</title>
-  <base href="/">
-  <meta name="viewport" content="width=device-width, initial-scale=1">
-  <link rel="icon" type="image/x-icon" href="favicon.ico">
-  <link href="https://fonts.googleapis.com/css?family=Roboto:300,400,500&display=swap" rel="stylesheet">
-  <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
-</head>
-<body>
-  <app-root></app-root>
-</body>
-</html>

frontend/ng-karaoqueue/src/main.ts

@@ -1,13 +0,0 @@
-import 'hammerjs';
-import { enableProdMode } from '@angular/core';
-import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
-
-import { AppModule } from './app/app.module';
-import { environment } from './environments/environment';
-
-if (environment.production) {
-  enableProdMode();
-}
-
-platformBrowserDynamic().bootstrapModule(AppModule)
-  .catch(err => console.error(err));

frontend/ng-karaoqueue/src/polyfills.ts

@@ -1,63 +0,0 @@
-/**
- * This file includes polyfills needed by Angular and is loaded before the app.
- * You can add your own extra polyfills to this file.
- *
- * This file is divided into 2 sections:
- *   1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
- *   2. Application imports. Files imported after ZoneJS that should be loaded before your main
- *      file.
- *
- * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
- * automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
- * Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
- *
- * Learn more in https://angular.io/guide/browser-support
- */
-
-/***************************************************************************************************
- * BROWSER POLYFILLS
- */
-
-/** IE10 and IE11 requires the following for NgClass support on SVG elements */
-// import 'classlist.js';  // Run `npm install --save classlist.js`.
-
-/**
- * Web Animations `@angular/platform-browser/animations`
- * Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.
- * Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).
- */
-// import 'web-animations-js';  // Run `npm install --save web-animations-js`.
-
-/**
- * By default, zone.js will patch all possible macroTask and DomEvents
- * user can disable parts of macroTask/DomEvents patch by setting following flags
- * because those flags need to be set before `zone.js` being loaded, and webpack
- * will put import in the top of bundle, so user need to create a separate file
- * in this directory (for example: zone-flags.ts), and put the following flags
- * into that file, and then add the following code before importing zone.js.
- * import './zone-flags.ts';
- *
- * The flags allowed in zone-flags.ts are listed here.
- *
- * The following flags will work for all browsers.
- *
- * (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame
- * (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick
- * (window as any).__zone_symbol__UNPATCHED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames
- *
- *  in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js
- *  with the following flag, it will bypass `zone.js` patch for IE/Edge
- *
- *  (window as any).__Zone_enable_cross_context_check = true;
- *
- */
-
-/***************************************************************************************************
- * Zone JS is required by default for Angular itself.
- */
-import 'zone.js/dist/zone';  // Included with Angular CLI.
-
-
-/***************************************************************************************************
- * APPLICATION IMPORTS
- */

frontend/ng-karaoqueue/src/styles.css

@@ -1,5 +0,0 @@
-/* You can add global styles to this file, and also import other style files */
-
-@import '@angular/material/prebuilt-themes/deeppurple-amber.css';
-html, body { height: 100%; }
-body { margin: 0; font-family: Roboto, "Helvetica Neue", sans-serif; }

frontend/ng-karaoqueue/src/test.ts

@@ -1,20 +0,0 @@
-// This file is required by karma.conf.js and loads recursively all the .spec and framework files
-
-import 'zone.js/dist/zone-testing';
-import { getTestBed } from '@angular/core/testing';
-import {
-  BrowserDynamicTestingModule,
-  platformBrowserDynamicTesting
-} from '@angular/platform-browser-dynamic/testing';
-
-declare const require: any;
-
-// First, initialize the Angular testing environment.
-getTestBed().initTestEnvironment(
-  BrowserDynamicTestingModule,
-  platformBrowserDynamicTesting()
-);
-// Then we find all the tests.
-const context = require.context('./', true, /\.spec\.ts$/);
-// And load the modules.
-context.keys().map(context);

frontend/ng-karaoqueue/tsconfig.app.json

@@ -1,18 +0,0 @@
-{
-  "extends": "./tsconfig.json",
-  "compilerOptions": {
-    "outDir": "./out-tsc/app",
-    "types": []
-  },
-  "files": [
-    "src/main.ts",
-    "src/polyfills.ts"
-  ],
-  "include": [
-    "src/**/*.ts"
-  ],
-  "exclude": [
-    "src/test.ts",
-    "src/**/*.spec.ts"
-  ]
-}

frontend/ng-karaoqueue/tsconfig.json

@@ -1,26 +0,0 @@
-{
-  "compileOnSave": false,
-  "compilerOptions": {
-    "baseUrl": "./",
-    "outDir": "./dist/out-tsc",
-    "sourceMap": true,
-    "declaration": false,
-    "downlevelIteration": true,
-    "experimentalDecorators": true,
-    "module": "esnext",
-    "moduleResolution": "node",
-    "importHelpers": true,
-    "target": "es2015",
-    "typeRoots": [
-      "node_modules/@types"
-    ],
-    "lib": [
-      "es2018",
-      "dom"
-    ]
-  },
-  "angularCompilerOptions": {
-    "fullTemplateTypeCheck": true,
-    "strictInjectionParameters": true
-  }
-}

frontend/ng-karaoqueue/tsconfig.spec.json

@@ -1,18 +0,0 @@
-{
-  "extends": "./tsconfig.json",
-  "compilerOptions": {
-    "outDir": "./out-tsc/spec",
-    "types": [
-      "jasmine",
-      "node"
-    ]
-  },
-  "files": [
-    "src/test.ts",
-    "src/polyfills.ts"
-  ],
-  "include": [
-    "src/**/*.spec.ts",
-    "src/**/*.d.ts"
-  ]
-}

frontend/ng-karaoqueue/tslint.json

@@ -1,91 +0,0 @@
-{
-  "extends": "tslint:recommended",
-  "rules": {
-    "array-type": false,
-    "arrow-parens": false,
-    "deprecation": {
-      "severity": "warning"
-    },
-    "component-class-suffix": true,
-    "contextual-lifecycle": true,
-    "directive-class-suffix": true,
-    "directive-selector": [
-      true,
-      "attribute",
-      "app",
-      "camelCase"
-    ],
-    "component-selector": [
-      true,
-      "element",
-      "app",
-      "kebab-case"
-    ],
-    "import-blacklist": [
-      true,
-      "rxjs/Rx"
-    ],
-    "interface-name": false,
-    "max-classes-per-file": false,
-    "max-line-length": [
-      true,
-      140
-    ],
-    "member-access": false,
-    "member-ordering": [
-      true,
-      {
-        "order": [
-          "static-field",
-          "instance-field",
-          "static-method",
-          "instance-method"
-        ]
-      }
-    ],
-    "no-consecutive-blank-lines": false,
-    "no-console": [
-      true,
-      "debug",
-      "info",
-      "time",
-      "timeEnd",
-      "trace"
-    ],
-    "no-empty": false,
-    "no-inferrable-types": [
-      true,
-      "ignore-params"
-    ],
-    "no-non-null-assertion": true,
-    "no-redundant-jsdoc": true,
-    "no-switch-case-fall-through": true,
-    "no-var-requires": false,
-    "object-literal-key-quotes": [
-      true,
-      "as-needed"
-    ],
-    "object-literal-sort-keys": false,
-    "ordered-imports": false,
-    "quotemark": [
-      true,
-      "single"
-    ],
-    "trailing-comma": false,
-    "no-conflicting-lifecycle": true,
-    "no-host-metadata-property": true,
-    "no-input-rename": true,
-    "no-inputs-metadata-property": true,
-    "no-output-native": true,
-    "no-output-on-prefix": true,
-    "no-output-rename": true,
-    "no-outputs-metadata-property": true,
-    "template-banana-in-box": true,
-    "template-no-negated-async": true,
-    "use-lifecycle-interface": true,
-    "use-pipe-transform-interface": true
-  },
-  "rulesDirectory": [
-    "codelyzer"
-  ]
-}