work in progress - update-check plugin

data retrieved - work on comparing with local version info started

plugins/update-check.user.js

@@ -0,0 +1,167 @@
+// ==UserScript==
+// @id             iitc-plugin-update-check@jonatkins
+// @name           IITC plugin: Check for updates
+// @category       Tweaks
+// @version        0.1.0.@@DATETIMEVERSION@@
+// @namespace      https://github.com/jonatkins/ingress-intel-total-conversion
+// @updateURL      @@UPDATEURL@@
+// @downloadURL    @@DOWNLOADURL@@
+// @description    [@@BUILDNAME@@-@@BUILDDATE@@] Check for updates for IITC and plugins against http://iitc.jonatkins.com/. Can also report status messages for known IITC issues.
+// @include        https://www.ingress.com/intel*
+// @include        http://www.ingress.com/intel*
+// @match          https://www.ingress.com/intel*
+// @match          http://www.ingress.com/intel*
+// @grant          none
+// ==/UserScript==
+
+@@PLUGINSTART@@
+
+// PLUGIN START ////////////////////////////////////////////////////////
+
+
+// use own namespace for plugin
+window.plugin.updateCheck = function() {};
+
+window.plugin.updateCheck.url = 'http://iitc.jonatkins.com/versioncheck.php?build=@@BUILDNAME@@';
+window.plugin.updateCheck.versionDataLoading = false;
+
+
+window.plugin.updateCheck.versionCompare = function(a,b) {
+  a = a.split('.');
+  b = b.split('.');
+
+  // adding dummy -1 entries to both split arrays simplifies comparisons
+  a.push(-1);
+  b.push(-1);
+
+  var minlen = Math.min(a.length, b.length);
+
+  for (var i=0; i<minlen; i++) {
+    var anum = parseInt(a[i]);
+    var bnum = parseInt(b[i]);
+    if (anum != bnum) {
+      return bnum-anum;
+    }
+  }
+
+  return 0;
+}
+
+window.plugin.updateCheck.loadVersionData = function() {
+  if (!window.plugin.updateCheck.versionDataLoading) {
+    window.plugin.updateCheck.versionDataLoading = true;
+
+    var s = document.createElement('script');
+    s.setAttribute('type','text/javascript');
+    s.setAttribute('src', window.plugin.updateCheck.url+'&callback=window.plugin.updateCheck.versionDataCallback');
+    s.setAttribute('id','update-check-script-tag');
+    document.getElementsByTagName("head")[0].appendChild(s);
+
+  } else {
+    // else we're already loading the script and it hasn't completed - do nothing
+    console.warn('update-check: already loading data - cannot load again');
+  }
+}
+
+window.plugin.updateCheck.versionDataCallback = function(data) {
+  // data loaded - flag it's not loading any more and remove the script tag
+  window.plugin.updateCheck.versionDataLoading = false;
+  var s = document.getElementById('update-check-script-tag');
+  if (s) {
+    s.parentNode.removeChild(s);
+  }
+
+  dialog({
+    text: JSON.stringify(data,null,2),
+    title: 'debug version check',
+    width: 700
+  });
+
+  window.plugin.updateCheck.showReport(data);
+}
+
+window.plugin.updateCheck.compareDetails = function(web_version, script_version) {
+  // compare the local script version data with the website version data
+  // and return an object with the results
+  var result = {};
+
+  result.webUrl = web_version.pageUrl;
+  result.downloadUrl = web_version.downloadUrl;
+  result.webVersion = web_version.version;
+
+  result.localVersion = script_version.script && script_version.script.version;
+
+  if (result.localVersion && result.webVersion) {
+    result.comp = window.plugin.updateCheck.versionCompare (result.localVersion, result.webVersion);
+
+    result.outOfDate = result.comp>0;
+    result.upToDate = result.comp==0;
+    result.localNewer = result.comp<0;
+
+
+  }
+
+  if (!result.localVersion) {
+    
+  } else if (!result.webVersion) {
+  }
+
+  return result;
+}
+
+
+window.plugin.updateCheck.showReport = function(data) {
+  var result = '<b>WORK IN PROGRESS - NOT YET FUNCTIONAL</b>';
+
+  if (data.error) {
+    result += '<div><b>Error checking for updates</b><br>'+data.error+'</div>';
+  } else {
+    if (data.name) {
+      result += '<div>IITC update check: '+data.name+'</div>';
+    }
+
+    if (data.iitc && window.script_info) {
+
+      var compare = window.plugin.updateCheck.compareDetails(data.iitc, window.script_info);
+
+      result += '<div>IITC Main script: '+JSON.stringify(compare)+'</div>';
+
+    } else {
+      if (!data.iitc) {
+        result += '<div>Warning: no version information for main IITC script found in response</div>';
+      }
+      if (!window.script_info) {
+        result += '<div>Warning: your IITC script does not contain version data</div>';
+      }
+    }
+
+
+  }
+
+  dialog({
+    width: 500,
+    title: 'Update check',
+    html: result
+  });
+}
+
+
+window.plugin.updateCheck.open = function() {
+
+  // TODO? open a dialog/show a message indicating that the update check is in progress, before the data is loaded?
+  // TODO? prevent loading the version data every time - cache it, with a user option to force fresh data
+
+  window.plugin.updateCheck.loadVersionData();
+}
+
+
+
+window.plugin.updateCheck.setup  = function() {
+  $('#toolbox').append(' <a onclick="window.plugin.updateCheck.open()" title="Check for IITC updates">Update check</a>');
+};
+
+var setup =  window.plugin.updateCheck.setup;
+
+// PLUGIN END //////////////////////////////////////////////////////////
+
+@@PLUGINEND@@