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// Buxfer Slidebar jetpack, by Edgar Gonçalves

jetpack.future.import("slideBar");

function displayMessage(text) { 
  jetpack.notifications.show({title: 'Buxfer Jetpack',
                              body: text,
                              icon: 'https://www.buxfer.com/media/favicon/favicon-moneybag.ico'});
}

function Buxfer () {}
Buxfer.prototype = {
  //variables
  buxferUrl: "www.buxfer.com",
  buxferAPIUrl: "https://www.buxfer.com/api/",
  
  //methods
  // gets username and password for a given domain, from Firefox's login-manager.
  getLoginInfo: function (domain, fuzzySearch) {
  var loginManager = Components.classes["@mozilla.org/login-manager;1"].getService(Components.interfaces.nsILoginManager);
  
  var domains = [];
  if(fuzzySearch) {
    domains.push("http://" + domain);
    domains.push("http://www." + domain);
    domains.push("https://" + domain);
    domains.push("https://www." + domain);
  } else {
    domains = [domain];
  }
  
  for(var i = 0; i < domains.length; i++) {
    for(var j = 0; j < domains.length; j++) {
    var logins = loginManager.findLogins({}, domains[i], domains[j], null);
    if(logins.length > 0)
      return {username: logins[0].username,
        password: logins[0].password};
    }
  }
  
  return null;
  },

  // Function called to log in the user in buxfer.
  // Receives the function (with a token and an uid) to be performed after the login is done.
  loginUser: function (successCallback) {
    if ( !(successCallback)) {
      successCallback = function(token, uid){};
    }
    
    var username, password;
    
    var loginInfo = this.getLoginInfo(this.buxferUrl, true);
    if (loginInfo) {
      username = loginInfo.username;
      password = loginInfo.password;
    } else {
      // We have no login stored, send the user to the Buxfer and tell him/her to login
      displayMessage("You have to login to Buxfer before using buxfer-send.");
    
      jetpack.tabs.open(this.buxferUrl);  
      jetpack.tabs[ Jetpack.tabs.length-1 ].focus(); 
      return;
    }
    
    var onloadHandler = function(data, status) {
      if(status  !== "success") {
      displayMessage("Error logging in: " + status);
      return;
      }
      var jsonResponse = data.response;
      
      if(jsonResponse.status === "OK"){
      successCallback(jsonResponse.token, jsonResponse.uid);
      }else{
      displayMessage("Error logging in: "+jsonResponse.status);
      }
    };  
    
    var loginurl = this.buxferAPIUrl +
      "login.json?userid=" +
      encodeURIComponent(username) +
      "&password=" + encodeURIComponent(password);
    jQuery.getJSON( loginurl, onloadHandler);  
  },

  // adds a buxfer transaction:
  addTransaction: function (description, amount) {
  var that = this;
  this.loginUser( function(token, uid) {
    var transactionUrl = that.buxferAPIUrl + "add_transaction.json";
    
    var onloadHandler = function(data, status) {
      if(status !== "success"){
        displayMessage("Error logging adding it: " + status);
        return;
      }
      
      var jsonResponse = data.response;
      if (jsonResponse.status !== "OK") {
        displayMessage("Error adding transaction : "+jsonResponse.status);
      }
      if (!jsonResponse.transactionAdded){
        displayMessage("Transaction wasn't added...");
        return;
      }
      if (jsonResponse.parseStatus != "success"){
        displayMessage("Transaction wasn't parsed correctly...");
        return;
      }
      displayMessage("Buxfer added your transaction.");
    };
    
    var text = description + " " + amount;
    var params = "token="+token+"&format=sms&text="+encodeURIComponent(text);
    jQuery.ajax( {
      type: "POST",
      data: params,
      dataType: "json",
      url: transactionUrl,
      cache: false,
      success: onloadHandler,
      error: function (XMLHttpRequest, textStatus, errorThrown) {
        displayMessage("Something very wrong happened: " + textStatus + ", " + errorThrown);}
      });
    });
  },  

  postTransaction: function(doc) {
    var description =  $(doc).find("#description").attr('value') || "undefined";
    var amount    =  $(doc).find("#amount").attr('value') || "0";
    this.addTransaction(description, amount);
  }
}

jetpack.slideBar.append({
  icon: "https://www.buxfer.com/media/favicon/favicon-moneybag.ico",
  width: 350,
  html: '<style>scrollbar * {display: none !important;}</style><h1>Buxfer Slidebar</h1><p>What did you spend money on?<br/></p><input id="description" size="45" type="text"/><br/><p>What much did you spend?<br/></p><input id="amount" "type="text"/><br/><br/><input type="button" id="post" value="Send to Buxfer!"/><br/><hl /> <p>Buxfer Slidebar is brought to you by:<br/><a href="http://sites.google.com/site/edgargoncalves/">Edgar Goncalves</a><br/>(no affiliation to <a href="http://buxfer.com">Buxfer</a>!)</p>',
  onSelect: function(slide) {
    slide({ size: 350 });
    var buxfer = new Buxfer();
    $(slide.contentDocument).find("#description").attr('value', jetpack.tabs.focused.contentDocument.getSelection());
    $(slide.contentDocument).find("#amount").focus();
    $(slide.contentDocument).find("#post").click(function () {buxfer.postTransaction(slide.contentDocument);});
  }
});