/**

 * Picasa Webalbum Integration Library

 * This library was inspired and based on pwa by Dieter Raber (http://www.gnu.org/copyleft/lesser.html)

 * @name pwi-1.0.js

 * @author Jeroen Diderik - http://www.multiprof.nl/

 * @version 1.0

 * @date March 27, 2009

 * @copyright (c) 2008 Jeroen Diderik(www.multiprof.nl)

 * @license Creative Commons Attribution-Share Alike 3.0 Netherlands License - http://creativecommons.org/licenses/by-sa/3.0/nl/

 * @example Visit http://pwi.googlecode.com/ for more informations, duscussions etc about this library

 */





//Global user variables to set (CHANGE TO WHAT YOU WANT IT TO BE)

var pwi_username = "Texazsilvers.com"; 			//Your username at Picasa WebAlbums

var pwi_container_div = "container"; 	//Specifiy the id of the div in which the albums should be loaded inside your html/template/...

var pwi_album_only = "SilverRoseAngel";	//setup with ONE specific album only, choose an album and take the name from the url between "#" and the last "/1"

var pwi_album_thumbsize = 144;			//supported sizes: 32, 48, 64, 72, 144, 160 (http://code.google.com/apis/picasaweb/reference.html#Parameters)

var pwi_album_crop = 0;					// 1 = crop to thumbsize, making them square, or 0 = keep original aspect ratio making the thumbsize the max width and height

var pwi_photosize = 800; 				//Supported sizes: 200, 288, 320, 400, 512, 576, 640, 720, 800 (http://code.google.com/apis/picasaweb/reference.html#Parameters)

var pwi_thumbsize = 144; 				//supported sizes: 32, 48, 64, 72, 144, 160 (http://code.google.com/apis/picasaweb/reference.html#Parameters)

var pwi_photo_crop = 0; 				// 1 = crop to thumbsize, making them square, or 0 = keep original aspect ratio making the thumbsize the max width and height

var pwi_maxresults = 999; 				//pictures per page



//Album and Photo details to show or not

var pwi_show_albumtitles = false;

var pwi_show_albumdate = false;         // originally - true

var pwi_show_albumphotocount = false;

var pwi_show_albumdescription = false;

var pwi_show_albumlocation = false;         // originally - 

var pwi_show_slideshowlink = true;         // originally - true

var pwi_show_photocaption = true;

var pwi_show_photodate = false;         // originally - true



// LABELS, translate ON THE RIGHT SIDE OF THE = if you want

var pwi_labels = new Array();

pwi_labels["photo"] 	= "photo";

pwi_labels["photos"] 	= "photos";

pwi_labels["albums"] 	= "Back to albums";

pwi_labels["slideshow"] = "Display slideshow";

pwi_labels["loading"] 	= "DLime Ranch fetching data...";         // originally - PWC instead of DLR  

pwi_labels["page"] 		= "Page";

pwi_labels["prev"] 		= "Previous";

pwi_labels["next"] 		= "Next";

pwi_labels["devider"] 	= "|";



//SLIMBOX settings, making the single photo view personal to your likings (http://www.digitalia.be/software/slimbox2)

var pwi_slimbox_config = {

	loop: false,

	overlayOpacity: 0.8,        // originally 0.6 (Background Darkness)

	overlayFadeDuration: 400,

	resizeDuration: 400,

	resizeEasing: "swing",

	initialWidth: 250,

	initlaHeight: 250,

	imageFadeDuration: 400,

	captionAnimationDuration: 400,

	counterText: "Photo {x} of {y}",

	closeKeys: [27, 88, 67, 70],

	nextKeys: [37, 80],

	nextKeys: [39, 83]

}









// ****  DONT CHANGE BELOW UNLESS YOU KNOW WHAT YOU ARE DOING ****

//preset globals

//Mainly for testing, set to 0 to disable

var pwi_maxalbums = 0; //maximum of pictures on albumphotos page



var pwi_currAlbum = "";

var pwi_currAlbumTitle = "";

var pwi_currPhoto = "";

var pwi_page = "";

var pwi_si = 1;

var pwi_storage_albums;

var pwi_storage_photos;

var pwi_storage_photo;

var pwi_history = "";



//fast string concat function ( var.push(x), var.toString() )

function StringCat() {

	var sp;

	var ep;

	var l = 0;

	this.push = function(what) {

		if (typeof(sp) == 'undefined') {

			ep = new Array();

			sp = ep;

		} else {

			var oep = ep;

			ep = new Array();

			oep[1] = ep;

		}

		ep[0] = what; ++l;

	};

	this.toString = function() {

		if (l == 0) return;

		while (l > 1) {

			var ptr = sp;

			var nsp = new Array();

			var nep = nsp;

			var nl = 0;

			while (typeof(ptr) != 'undefined') {

				if (typeof(nep[0]) == 'undefined') {

					nep[0] = ptr[0]; ++nl;

				} else {

					if (typeof(ptr[0]) != 'undefined') nep[0] += ptr[0];

					nep[1] = new Array();

					nep = nep[1];

				};

				ptr = ptr[1];

			};

			sp = nsp;

			ep = nep;

			l = nl;

		};

		return sp[0];

	};

}



function formatDate(dt) {

	var months = new Array(12);

	months[0] = "January";

	months[1] = "February";

	months[2] = "March";

	months[3] = "April";

	months[4] = "May";

	months[5] = "June";

	months[6] = "July";

	months[7] = "August";

	months[8] = "September";

	months[9] = "October";

	months[10] = "November";

	months[11] = "December";

	var today = new Date(Number(dt));

	var year = today.getYear();

	if (year < 1000) {

		year += 1900;

	};

	return (months[(today.getMonth())] + " " + today.getDate() + ", " + year);

}



function formatDateTime(dt) {

	var today = new Date(Number(dt));

	var year = today.getYear();

	if (year < 1000) {

		year += 1900

	};

	return (today.getDate() + "-" + (today.getMonth() + 1) + "-" + year + " " + today.getHours() + ":" + (today.getMinutes() < 10 ? "0" + today.getMinutes() : today.getMinutes()));

}



var photoids = new Array();



function albums(j) { //returns the list of all albums for the user

	var scAlbums = new StringCat();

	//scAlbums.push("<div class='pwi_albums'>Albums</div>");

	for (var i = 0; i < j.feed.entry.length; i++) {

		var id_base = j.feed.entry[i].gphoto$name.$t;

		var album_date = formatDate(j.feed.entry[i].gphoto$timestamp.$t);

		var thumb = j.feed.entry[i].media$group.media$thumbnail[0].url.replace(new RegExp("/s160-c/", "g"), "/");

		scAlbums.push("<div class='pwi_album' style='height:"+pwi_album_thumbsize+"px;'><a class='standard' href='javascript:void(0)' onclick='javascript:$.historyLoad(\"" + id_base + "/1\")' title='"+j.feed.entry[i].title.$t+"'>");

		scAlbums.push("<img src='" + thumb + "?imgmax=" + pwi_album_thumbsize + "&crop=" + pwi_album_crop + "'/></a><br>");

		pwi_show_albumtitles ? scAlbums.push("<a href='javascript:void(0)' onclick='javascript:$.historyLoad(\"" + id_base + "/1\")'>" + j.feed.entry[i].title.$t + "</a><br/>" + (pwi_show_albumdate ? album_date : "") + ( pwi_show_albumphotocount ? "&nbsp;&nbsp;&nbsp;&nbsp;" + j.feed.entry[i].gphoto$numphotos.$t + " "+ pwi_labels["photos"] : "")) : false;

		scAlbums.push("</div>");

	}

	scAlbums.push("<div style='clear: both;height:0px;'> </div>");

	pwi_storage_albums = scAlbums.toString();



	if (pwi_album_only.length > 0) {

		getAlbum(pwi_album_only, 1);

	} else {

		show(false, pwi_storage_albums);

	}

}



function album(j) { //returns all photos in a specific album

	var scPhotos = new StringCat();

	//get the number of photos in the album

	var np = j.feed.openSearch$totalResults.$t;

	var loc = j.feed.gphoto$location.$t;

	var ad = j.feed.subtitle.$t;

	var album_date = formatDate(j.feed.gphoto$timestamp.$t);

	var item_plural = true;

	if (np == "1") item_plural = false;

	var len = j.feed.entry.length;

	pwi_currAlbumTitle = j.feed.title.$t;

	scPhotos.push("<div class='pwi_album_description'>");

	if (!pwi_album_only.length > 0) {

		scPhotos.push("<a href='javascript:void(0)' onclick='$.historyLoad(\"\");'>" + pwi_labels["albums"] + "</a> &gt; " + j.feed.title.$t + "<br/>");

	};

	if (pwi_show_albumdescription) {

		scPhotos.push("<div class='title'>" + j.feed.title.$t + "</div>");

		scPhotos.push("<div class='details'>" + np + " " + (item_plural ? pwi_labels["photos"] : pwi_labels["photo"]) + (pwi_show_albumdate ? ", " + album_date: "") + (pwi_show_albumlocation && loc ? ", " + loc: "") + "</div>");

		scPhotos.push("<div class='description'>" + (ad ? ad: "") + "</div>");

		if (pwi_show_slideshowlink) scPhotos.push("<a href='http://picasaweb.google.com/" + pwi_username + "/" + j.feed.gphoto$name.$t + "/photo#s" + j.feed.entry[0].gphoto$id.$t + "' rel='gb_page_fs[]' target='_new' class='sslink'>" + pwi_labels["slideshow"] + "</a>");

	}

	scPhotos.push("</div>");

	//create paging navigation

	if (np > pwi_maxresults) {

		pageCount = (np / pwi_maxresults);

		var ppage = pwi_labels["prev"] + " " + pwi_labels["devider"] + " ",

		npage = pwi_labels["devider"] + " " + pwi_labels["next"];

		if (pwi_page > 1) {

			ppage = "<a href='javascript:void(0)' onclick='$.historyLoad(\"" + pwi_currAlbum + "/" + (parseInt(pwi_page) - 1) + "\")'>previous</a> | "

		};

		if (pwi_page < pageCount) {

			npage = "| <a href='javascript:void(0)' onclick='$.historyLoad(\"" + pwi_currAlbum + "/" + (parseInt(pwi_page) + 1) + "\")'>next</a>"

		};

		var navRow = new StringCat();

		navRow.push("<div class='pwi_pager'>" + ppage + pwi_labels["page"] + " ");

		for (var i = 1; i < pageCount + 1; i++) {

			if (i == pwi_page) {

				navRow.push("<span class='pwi_pager_current'>" + i + "</span> ");

			} else {

				navRow.push("<a href='javascript:void(0)' onclick='$.historyLoad(\"" + pwi_currAlbum + "/" + i + "\")'>" + i + "</a> ");

			};

		};

		navRow.push(npage + "</div>");

		scPhotos.push(navRow.toString());

	}

	for (var i = 0; i < len; i++) {

		var img_base = j.feed.entry[i].content.src;

		var id_base = j.feed.entry[i].gphoto$id.$t;

		var c = pwi_show_photocaption ? (j.feed.entry[i].summary.$t ? j.feed.entry[i].summary.$t: "") : "";

		var dt = pwi_show_photodate ? (j.feed.entry[i].exif$tags.exif$time ? formatDateTime(j.feed.entry[i].exif$tags.exif$time.$t) : j.feed.entry[i].published.$t) : "";

		var d = dt + " " + c.replace(new RegExp("'", "g"), "&#39;");

		scPhotos.push("<div class='pwi_photo' style='height:" + pwi_thumbsize + "px;'>");

		scPhotos.push("<a href='" + img_base + "?imgmax=" + pwi_photosize + "' rel='lightbox-photo' title='" + d + "'>");

		scPhotos.push("<img src='" + img_base + "?imgmax=" + pwi_thumbsize + "&crop=" + pwi_photo_crop + "'/></a>");

		scPhotos.push("</div>");

	}

	scPhotos.push(navRow);

	pwi_storage_photos = scPhotos.toString();

	show(false, pwi_storage_photos);

}



function getAlbums() {

	if (pwi_storage_albums) {

		show(false, pwi_storage_albums);

	} else {

		show(true, '');

		var url = 'http://picasaweb.google.com/data/feed/api/user/' + pwi_username + '?category=album' + (pwi_maxalbums > 0 ? '&max-results=' + pwi_maxalbums: "") + '&access=public&alt=json';

		$.getJSON(url, 'callback=?', albums);

	}

}



function getAlbum(albumid, newPage) {

	if (albumid != pwi_currAlbum || pwi_page != newPage) {

		pwi_page = newPage;

		pwi_currAlbum = albumid;

		pwi_si = ((pwi_page - 1) * pwi_maxresults) + 1;

		var url = 'http://picasaweb.google.com/data/feed/api/user/' + pwi_username + '/album/' + albumid + '?category=photo&max-results=' + pwi_maxresults + '&start-index=' + pwi_si + '&alt=json';

		show(true, '');

		$.getJSON(url, 'callback=?', album);

	} else {

		show(false, pwi_storage_photos);

	}

}



function fromHistory(hash) {

	if (hash) {

		var a, p;

		if (hash.indexOf("/") > 0) {

			a = hash.split("/")[0];

			p = hash.split("/")[1];

			getAlbum(a, p);

		}

	} else {

		getAlbums();

	}

}



function show(loading, data) {

	if (loading) {

		//$("#"+pwi_container_div).fadeOut('slow');

		$("#" + pwi_container_div).block({

			message: "<div class='lbLoading pwi_loader'>" + pwi_labels["loading"] + "</div>",

			css: "pwi_loader"

		});

	} else {

		$("#" + pwi_container_div).unblock();

		$("#" + pwi_container_div).html(data); //.fadeIn('fast');

		$("a[rel^='lightbox']").slimbox(pwi_slimbox_config, null,

		function(el) {

			return (this == el) || ((this.rel.length > 8) && (this.rel == el.rel));

		});

	}

}



$(document).ready(function() {

	if (pwi_username == "YOUR_USER_NAME_HERE") {

		alert('Open the pwi js-file and change content \nof the variable pwi_username in the top of the file\nto your Picasa Webalbum username');

	} else {

		$.extend($.blockUI.defaults.overlayCSS, {

			backgroundColor: '#000'

		});

		$.ajaxSetup({

			cache: true

		});

		$("#" + pwi_container_div).addClass("pwi_container");

		$.historyInit(fromHistory);

	}

});



//$Update: May 10, 2007$

//$Update: July 31, 2007, Jeroen Diderik$

//$Update: September 23, 2007, Jeroen Diderik, Mootools conversion$

//$Update: November 19, 2007, Jeroen Diderik, PWI vars update$

//$Update: March 25, 2008, Jeroen Diderik, rewrite to replace MOOTools with  jQuery$

//$Update: April 05, 2008, Jeroen Diderik, rewrite for early release$

//$update: October 21, 2008, Jeroen Diderik, added ALBUM_ONLY option

//$update: March 27, 2009, Jeroen Diderik, added many option and rewrote to using DIVs