package com.cradle.iitc_mobile;

import java.io.IOException;

import com.cradle.iitc_mobile.R;

import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.NetworkInfo.State;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.StrictMode;
import android.preference.PreferenceManager;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;

public class IITC_Mobile extends Activity {

    private IITC_WebView iitc_view;
    private boolean back_button_pressed = false;
    private boolean desktop = false;
    private OnSharedPreferenceChangeListener listener;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // TODO build an async task for url.openStream() in IITC_WebViewClient
        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
        StrictMode.setThreadPolicy(policy);
        setContentView(R.layout.activity_main);
        iitc_view = (IITC_WebView) findViewById(R.id.iitc_webview);

        SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
        listener = new OnSharedPreferenceChangeListener() {
            @Override
            public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
                if (key == "pref_force_desktop")
                    desktop = sharedPreferences.getBoolean("pref_force_desktop", false);
                // reload intel map
                iitc_view.loadUrl(addUrlParam("https://www.ingress.com/intel"));
                injectJS();
            }
        };
        sharedPref.registerOnSharedPreferenceChangeListener(listener);

        // we do not want to reload our page every time we switch orientations...
        // so restore state if activity was already created
        if(savedInstanceState != null) {
            iitc_view.restoreState(savedInstanceState);
        }
        else {
            // load new iitc web view with ingress intel page
            Intent intent = getIntent();
            String action = intent.getAction();
            if (Intent.ACTION_VIEW.equals(action)) {
                Uri uri = intent.getData();
                String url = uri.toString();
                // TODO Why does "if(intent.getScheme() == "http")" not work?
                if (url.contains("http://"))
                    url = url.replace("http://", "https://");
                Log.d("Intent received", "url: " + url);
                if (url.contains("ingress.com")) {
                    Log.d("Intent received", "loading url...");
                    iitc_view.loadUrl(addUrlParam(url));
                }
            }
            else {
                Log.d("No Intent call", "loading https://www.ingress.com/intel");
                iitc_view.loadUrl(addUrlParam("https://www.ingress.com/intel"));
            }
        }
    }

    @Override
    protected void onResume() {
        // enough idle...let's do some work
        iitc_view.loadUrl("javascript: window.idleTime = 0");
        iitc_view.loadUrl("javascript: window.renderUpdateStatus()");
        super.onResume();
    }

    @Override
    protected void onStop() {
        ConnectivityManager conMan = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

        State mobile = conMan.getNetworkInfo(0).getState();
        State wifi = conMan.getNetworkInfo(1).getState();

        if (mobile == NetworkInfo.State.CONNECTED || mobile == NetworkInfo.State.CONNECTING) {
            // cancel all current requests
            iitc_view.loadUrl("javascript: window.requests.abort()");
            // set idletime to maximum...no need for more
            iitc_view.loadUrl("javascript: window.idleTime = 999");
        } else if (wifi == NetworkInfo.State.CONNECTED || wifi == NetworkInfo.State.CONNECTING) {
            iitc_view.loadUrl("javascript: window.idleTime = 999");
        }
        super.onStop();
    }

    // save instance state to avoid reloading on orientation change
    @Override
    protected void onSaveInstanceState(Bundle outState) {
        iitc_view.saveState(outState);
    }

    // we want a self defined behavior for the back button
    @Override
    public void onBackPressed() {
        if (this.back_button_pressed) {
            super.onBackPressed();
            return;
        }

        iitc_view.loadUrl("javascript: window.goBack();");
        this.back_button_pressed = true;
        Toast.makeText(this, "Press twice to exit", Toast.LENGTH_SHORT).show();

        // reset back button after 0.5 seconds
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                back_button_pressed=false;
            }
        }, 500);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle item selection
        switch (item.getItemId()) {
        case R.id.reload_button:
            iitc_view.loadUrl(addUrlParam("https://www.ingress.com/intel"));
            injectJS();
            return true;
        // clear cache
        case R.id.cache_clear:
            iitc_view.clearHistory();
            iitc_view.clearFormData();
            iitc_view.clearCache(true);
            return true;
        // get the users current location and focus it on map
        case R.id.locate:
            iitc_view.loadUrl("javascript: window.map.locate({setView : true, maxZoom: 13});");
            return true;
        case R.id.settings:
            Intent intent = new Intent(this, IITC_Settings.class);
            intent.putExtra("iitc_version", iitc_view.getWebViewClient().getIITCVersion());
            startActivity(intent);
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }

    private void injectJS() {
        try {
            iitc_view.getWebViewClient().loadIITC_JS(this);
        } catch (IOException e1) {
            e1.printStackTrace();
        } catch (NullPointerException e2) {
            e2.printStackTrace();
        }
    }

    private String addUrlParam(String url) {
        SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
        this.desktop = sharedPref.getBoolean("pref_force_desktop", false);

        if (desktop)
            return (url + "?vp=f");
        else
            return (url + "?vp=m");
    }
}