Format Tweet

formatTweet.js

/*
* Dan Wasilewski
*
* A simple function that formats a tweet's text to include linked entities (hashtag, mentions, and links)
* When fetching tweets, make sure to add include_entities=1 to your query string
* 
*/

var formatTweet = function(tweetObj){
    //create an array of tweet entities
    var tweetArr = [],
        formattedText = tweetObj.text;
    for (var entity in tweetObj.entities){
        if(typeof tweetObj.entities[entity] !== 'function'){
	    for (var i = 0; i < tweetObj.entities[entity].length; i++){
	        tweetArr.push(tweetObj.entities[entity][i]);
	    }
	}
    }

    //sort index from largest to smallest
    tweetArr.sort(function(a,b) { return parseInt(b.indices[0]) - parseInt(a.indices[0]) } );

    //format it!
    for (var i = 0; i < tweetArr.length; i++){
        var toFormat = tweetArr[i],
            targetText = formattedText.substring(toFormat.indices[0], toFormat.indices[1]);
        if (toFormat.screen_name){
            formattedText = formattedText.replace(targetText, '<a href="http://twitter.com/'+ toFormat.screen_name +'" target="_blank">'+ targetText +'</a>');
        } else if (toFormat.url){
            formattedText = formattedText.replace(targetText, '<a href="'+ targetText +'" target="_blank">'+ targetText +'</a>');
        } else {
            formattedText = formattedText.replace(targetText, '<a href="http://twitter.com/hashtag/'+ toFormat.text +'" target="_blank">'+ targetText +'</a>');
        }
    }

    return formattedText;
};

var formatTime = function(timeToFormat){
	var currentTime = new Date().getTime() / 1000,
		timeAgo = currentTime - timeToFormat,
		formattedTime = '';

	if(timeAgo < 60) {
		formattedTime = timeAgo + ' seconds ago';
	} else if(timeAgo < 3600) {
		formattedTime = Math.floor(timeAgo/60) + (Math.floor(timeAgo/60) == 1 ? ' minute ago' : ' minutes ago');
	} else if(timeAgo < 86400) {
		formattedTime = Math.floor(timeAgo/3600) + (Math.floor(timeAgo/3600) == 1 ? ' hour ago' : ' hours ago');
	} else if(timeAgo > 86400) {
		formattedTime = Math.floor(timeAgo/86400) + (Math.floor(timeAgo/86400) == 1 ? ' day ago' : ' days ago');
	}

	return formattedTime;

};