background.js

function onFacebookLogin() {
    "use strict";
    var i, t;
    localStorage.accessToken || chrome.tabs.getAllInWindow(null, function (e) {
        for (i = 0; i < e.length; i += 1) if (e[i].url.indexOf(successURL) === 0) {
            t = e[i].url.split("#")[1];
            access = t.split("&")[0], console.log(access), localStorage.setItem("accessToken", access);
	    userToken = localStorage.getItem("accessToken");
	    if (userToken) {
    		tempToken = userToken.split("=")[1];
    		getPermToken();
   	    } else {
    		console.log("user not logged into facebook yet");
   			 }
	
		 chrome.tabs.onUpdated.removeListener(onFacebookLogin);
            return;
        }
    });
}


function getPermToken() {
    "use strict";
    $.ajax({
        type: "POST",
        url: "https://graph.facebook.com/oauth/access_token",
        data: {
            grant_type: "fb_exchange_token",
            client_id: "277140069067777",
            client_secret: "ea1deb3d17390eb947a52dcc336786c9",
            fb_exchange_token: tempToken
        },
        success: function(e) {
            token = e.split("&")[0], localStorage.setItem("accesskey", token),permToken = localStorage.getItem("accesskey");
if (permToken) {
    getUserData();
} else {
    console.log("permanent token still not retrieved yet");
}

        },
        error: function() {
            console.log("Failed to retrieve acceskey");
        }
    });
}

function getUserData() {
    "use strict";
    $.ajax({
        url: "https://graph.facebook.com/me?" + permToken,
        dataType: "json",
        success: function(e) {
          strData = JSON.stringify(e), localStorage.setItem("user", strData),userDataStr = localStorage.getItem("user");
          if (userDataStr) {
            userDataJson = JSON.parse(userDataStr), userKey = userDataJson.id + userDataJson.name;
            getFriendInfo();
          } else {
            console.log("still need to download user's data for key");
          }

        },
        error: function() {
          console.log("fail");
        }
    });
}

function getFriendInfo() {
    "use strict";
    $.ajax({
        url: "https://graph.facebook.com/me/friends?" + permToken,
        dataType: "json",
        success: function(e) {
            frndData = JSON.stringify(e), localStorage.setItem(userKey, frndData);
	    l = '';
	    $.each(e.data,function(idx,val){
            l=l+val.id+(idx<e.data.length-1?',':'');
	    });
	    getLikes();
	    pageData();
        },
        error: function() {
            console.log("fail");
        }
    });
}


chrome.extension.onRequest.addListener(function(e, t, n) {
    "use strict";
    window.u = e.url, window.c = e.cat, window.product = e.product;
});


function short_url(e) {
  $.ajax({
      url: "https://www.googleapis.com/urlshortener/v1/url?key=AIzaSyD1xzZ9B4NElbFAAz8IAhH9Ko1nbap28OU",
      type: "POST",
      contentType: "application/json",
      data: '{longUrl:"' + encodeURI(e) + '"}',
      dataType: "json",
      success: function(e) {
        localStorage.setItem("lips", e.id);
      },
      error: function() {
        console.log("fail");
      }
    });
}

function getLikes() {
     var query = 'select page_id,uid from page_fan where uid IN (' + l + ')'; 
     $.ajax({
         url: "https://graph.facebook.com/fql?q=" + query + "&" + localStorage.accessToken,
         dataType: "json",
         success: function(e) {          
             strdata = JSON.stringify(e), localStorage.setItem("likes", strdata);
         },
         error: function() {
             console.log("fail");
         }
      });
} 

function pageData() {
     var query = 'select name,page_id from page where page_id IN (select page_id from page_fan where uid IN (' + l + '))';
     $.ajax({
         url: "https://graph.facebook.com/fql?q=" + query + "&" + localStorage.accessToken,
         dataType: "json",
         success: function(e) {
             strdata = JSON.stringify(e), localStorage.setItem("page", strdata);
			 sendData();
            
         },
         error: function() {
             console.log("fail");
         }
      }); 
}

var successURL = "http://expertapp.gadgetizor.com", l, i, access, userToken, token, tempToken, permToken, strData, value, userDataStr, userDataJson, userKey, frndData, frndValue, prod_array, i, j, k, rec_uid = [],page, like, page_str, like_str, db =[];  
chrome.tabs.onUpdated.addListener(onFacebookLogin);




function check(data) {
    page_str = localStorage.page, like_str = localStorage.likes; 
    page_str? page = JSON.parse(page_str):console.log("no page data");  
    like_str? like = JSON.parse(like_str):console.log("no like data");  
    if (data) {
        prod_array = data.split(' ');
        match_page(prod_array[0]);
    } else {
        console.log('failed data');
        }
}



function match_page(match) {
    for (j = 0; j < page.data.length; j = j + 1) {
        if ( page.data[j].name.toLowerCase().indexOf(match.toLowerCase()) >=0) {
            get_friends(page.data[j].page_id);
        } else {
            console.log('fail');
        }
    }
}



function get_friends(uid) {
    for( k = 0; k < like.data.length; k = k + 1) 
    {
        if ( uid === like.data[k].page_id ) {
            rec_uid.push(like.data[k].uid);
        } else {
            console.log("Fuck");
        }
    }
    if (rec_uid !== "") {
        localStorage.setItem("rec_uid", JSON.stringify(rec_uid));
    } else {
        console.log("no recommendations");
    }

}

function sendData() {
		if (localStorage.length) {
				key = localStorage.key(0);
				data = localStorage.getItem(key);
				chrome.extension.sendRequest({key:key, data:data});
		} else {
				console.log("not yet");
		}

}

chrome.browserAction.onClicked.addListener(function(tab) {
  chrome.tabs.sendRequest(tab.id, {method: "getLocalStorage"}, function(response) {
    var myObjectRetrieved = JSON.parse(response.data);
    console.log(myObjectRetrieved);
  });
});
 
// Automatically inject all pages with the content script when the extension
// first installed by the user. Instead of refreshing the page all the time.
// From: http://stackoverflow.com/questions/2399389/chrome-extension-first-run/2401788#2401788
function onInstall() {
  // Install the content script to all opened windows.
  // From: https://github.com/mohamedmansour/reload-all-tabs-extension/blob/master/js/reload_controller.js#L96
  chrome.windows.getAll({ populate: true }, function(windows) {
    for (var w = 0; w < windows.length; w++) {
      var tabs = windows[w].tabs;
      for (var t = 0; t < tabs.length; t++) {
        var tab = tabs[t];
        if (tab.url.indexOf('http') == 0) { // Only inject in web pages.
          chrome.tabs.executeScript(tab.id, { file: 'page.js' });
        }
      }
    }
  });
}
 
function getVersion() {
  var details = chrome.app.getDetails();
  return details.version;
}
 
var currVersion = getVersion();
var prevVersion = localStorage['version']
if (currVersion != prevVersion) {
  // Check if we just installed this extension.
  if (typeof prevVersion == 'undefined') {
    onInstall();
  }
  localStorage['version'] = currVersion;
}

function checkdata() {
    console.log('from bg');
}

chrome.extension.onMessage.addListener(
  function(request, sender, sendResponse) {
    console.log(sender.tab ?
                "from a content script:" + sender.tab.url :
                "from the extension");
    if (request.greeting == "hello")
      sendResponse({farewell: "goodbye"});
  });