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341 lines
7.2 KiB
341 lines
7.2 KiB
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var nodes;
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var edges;
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var options = {
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nodes: {
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borderWidth:4,
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size:30,
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color: {
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border: '#222222',
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background: '#666666'
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},
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font:{color:'#eeeeee'}
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},
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edges: {
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color: 'lightgray'
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}
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};
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/**
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* Checks if a user is a node in the graph
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*
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* @param userID
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* @returns {boolean}
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*/
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function alreadyInGraph(userID)
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{
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for(var i = 0; i < nodes.length; i++)
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{
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if(nodes[i].id === userID)
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{
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return true;
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}
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}
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return false;
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}
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/**
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* adds a person to the nodes list
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*
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* @param profileData
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*/
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function addPersonToGraph(profileData)
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{
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nodes.push(
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{
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id:profileData.id,
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name:profileData.login,
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shape: 'circularImage',
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image:profileData.avatar_url
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});
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}
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/**
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* Adds the followers/following of a person
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* to the graph
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*
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* @param username
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* @param apiPath
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* @returns {Promise<any>}
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*/
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function addFriends(username, apiPath, page)
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{
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updateProgress();
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return new Promise(function(resolve, reject)
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{
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queryAPIByUser(apiPath + "?page=" + page, username, function(data)
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{
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for(var i = 0; i < data.length; i++)
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{
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if(!alreadyInGraph(data[i].id))
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{
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addPersonToGraph(data[i]);
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}
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}
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if(page < 50 && data.length === 30)
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{
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addFriends(username, apiPath, page+ 1).then(function()
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{
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resolve();
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})
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}
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else
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{
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resolve();
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}
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},
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function(error)
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{
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reject(error);
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})
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});
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}
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/**
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* Greedy function which checks to see if a edge is in the graphs
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*
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* @param id1
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* @param id2
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* @returns {boolean}
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*/
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function edgeInGraph(id1, id2)
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{
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for(var i = 0;i < edges.length; i++)
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{
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if(edges[i].from === id1 && edges[i].to === id2)
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{
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return true;
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}
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if(edges[i].to === id1 && edges[i].from === id2)
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{
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return true;
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}
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}
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return false;
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}
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/**
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* Adds a connection to the graph
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*
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* @param person1
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* @param person2
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*/
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function addConnection(person1, person2)
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{
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if(person1.id !== person2.id)
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{
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if(alreadyInGraph(person2.id) && !edgeInGraph(person1.id, person2.id))
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{
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edges.push(
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{
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from: person1.id,
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to: person2.id
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});
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}
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}
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}
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function processConnections(user, apiPoint, page)
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{
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return new Promise(function(resolve, reject)
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{
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queryAPIByUser(apiPoint + "?page=" + page, user.name,
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function(data)
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{
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for(var i = 0; i < data.length; i++)
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{
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addConnection(user, data[i])
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}
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if(page < 50 && data.length === 30)
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{
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processConnections(user, apiPoint, page + 1).then(function()
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{
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resolve();
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});
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}
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else
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{
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resolve();
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}
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}, function(error)
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{
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console.log(error);
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resolve();
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})
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})
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}
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/**
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* Processes all the connections of a user and adds them to the graph
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*
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* @param user has .id and .name
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* @returns {Promise<any>}
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*/
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function processUserConnections(user)
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{
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return new Promise(function(resolve, reject)
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{
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if(user.id === baseID)
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{
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processConnections(user, API_FOLLOWING, 1).then(function()
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{
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processConnections(user, API_FOLLOWERS, 1).then(function()
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{
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updateProgress();
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resolve();
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})
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})
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}
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else
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{
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processConnections(user, API_FOLLOWING, 1).then(function()
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{
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updateProgress();
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resolve();
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})
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}
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});
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}
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/**
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* Creates connections between all the nodes in
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* the graph.
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*
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* @returns {Promise<any>}
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*/
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function createConnections()
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{
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return new Promise(function(resolve, reject)
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{
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var prom = [];
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for(var i = 0; i < nodes.length; i++)
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{
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prom.push(processUserConnections(nodes[i]));
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}
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Promise.all(prom).then(function()
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{
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resolve();
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}).catch(function(error)
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{
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console.log(error);
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resolve();
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});
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});
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}
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var total = 1;
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var indexed = 0;
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var progressID;
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function updateProgress()
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{
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indexed++;
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var percent = parseInt((indexed/total)*100);
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$("#" + progressID).html("<div class=\"progress\">\n" +
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" <div class=\"progress-bar progress-bar-striped progress-bar-animated\" role=\"progressbar\" style=\"width: " + percent + "%\" aria-valuenow=\"" + percent + "\" aria-valuemin=\"0\" aria-valuemax=\"100\"></div>\n" +
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"</div>");
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console.log();
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}
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var baseID;
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/**
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* Adds the base person to the graph.
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*
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* @param username
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* @returns {Promise<any>}
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*/
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function addSelfToGraph(username)
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{
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return new Promise(function(resolve, reject)
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{
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queryAPIByUser("", username, function(data)
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{
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baseID = data.id;
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total = (data.followers + data.following);
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addPersonToGraph(data);
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resolve();
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},
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function(error)
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{
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reject(error);
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});
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});
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}
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function bringUpProfileView(id)
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{
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for(var i = 0; i < nodes.length; i++)
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{
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if(nodes[i].id === id)
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{
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profileGen(nodes[i].name, "profileGen");
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}
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}
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}
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/**
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* Creates a graph
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* @param username
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* @param containerName
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* @param graphsTitle
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*/
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function createFriendsGraph(username, containerName, graphsTitle)
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{
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progressID = graphsTitle;
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nodes = [];
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edges = [];
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addSelfToGraph(username).then(function()
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{
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addFriends(username, API_FOLLOWERS,1).then(function()
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{
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addFriends(username, API_FOLLOWING,1).then(function()
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{
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createConnections().then(function()
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{
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$("#" + progressID).html("");
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var container = document.getElementById(containerName);
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var data =
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{
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nodes: nodes,
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edges: edges
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};
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var network = new vis.Network(container, data, options);
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network.on("click", function (params)
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{
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params.event = "[original event]";
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if(Number(this.getNodeAt(params.pointer.DOM)) !== NaN)
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{
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bringUpProfileView(Number(this.getNodeAt(params.pointer.DOM)));
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}
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});
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});
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});
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})
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}).catch(function(error)
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{
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$("#" + graphsTitle).html("Error Fetching Data From API");
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alert("Invalid User");
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});
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}
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