/* Demo Note:  This demo uses a FileProgress class that handles the UI for displaying the file name and percent complete.
The FileProgress class is not part of SWFUpload.
*/


/* **********************
   Event Handlers
   These are my custom event handlers to make my
   web application behave the way I went when SWFUpload
   completes different tasks.  These aren't part of the SWFUpload
   package.  They are part of my application.  Without these none
   of the actions SWFUpload makes will show up in my application.
   ********************** */


/*	===================
v2.1.0 Beta 2 - Tested
03.30.08 - Created minsec function to clean up a few variables

Modifications made by Daem0nX (03.29.08)
Please note I dont work with JS very often so...
There is no warranty with this code.
Hope this helps some of those asking / wanting / needing this code update.
To the devs of SWFUpload - Keep up the awesome work =)

Modification to uploadStart
Captures start time (iTime)

Modification to uploadSuccess
Now shows "Completed in xx.yy minutes/seconds

Additional vars that can be used in UploadProgress
Default info format - 0.1 of 3 MB at 51 KB/sec; 01:39 remain (2%)
Look in that section for more info
Upload speed
Time elapsed
Time remaining

	===================	*/
var iTime = "";	//intial time
var Timeleft = "";	//time left

//roundNumber found via google
function roundNumber(num, dec) {
	var result = Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
	return result;
}

//minsec created by Daem0nX (03.29.08)
function minsec(time, tempTime) {
var ztime;
	if (time == "m") {
		ztime = Math.floor(tempTime/60);
		if (ztime < 10) {
			ztime = "0" + ztime;	
		}
	} else if (time == "s") {
		ztime = Math.ceil(tempTime % 60);
		if (ztime < 10) {
			ztime = "0" + ztime;	
		}
	} else {
		ztime = "minsec error...";
	}
return ztime;
}
   
  
function fileQueued(file) {
	try {
		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setStatus("Pending...");
		progress.toggleCancel(true, this);
		jQuery.expr[':'].parents = function(a,i,m){
		    return jQuery(a).parents(m[3]).length < 1;
		};

	} catch (ex) {
		this.debug(ex);
	}
	$('.progressContainer').not('.green').find('.progressBarWrapper, .progressBarComplete').hide();
}

function fileQueueError(file, errorCode, message) {
	try {
		if (errorCode === SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED) {
			alert("You have attempted to queue too many files.\n" + (message === 0 ? "You have reached the upload limit." : "You may select " + (message > 1 ? "up to " + message + " files." : "one file.")));
			return;
		}

		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setError();
		progress.toggleCancel(false);

		switch (errorCode) {
		case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
			progress.setStatus("File is too big.");
			this.debug("Error Code: File too big, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			break;
		case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
			progress.setStatus("Cannot upload Zero Byte files.");
			this.debug("Error Code: Zero byte file, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			break;
		case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
			progress.setStatus("Invalid File Type.");
			this.debug("Error Code: Invalid File Type, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			break;
		default:
			if (file !== null) {
				progress.setStatus("Unhandled Error");
			}
			this.debug("Error Code: " + errorCode + ", File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			break;
		}
	} catch (ex) {
        this.debug(ex);
    }
}

function fileDialogComplete(numFilesSelected, numFilesQueued) {
	try {
		if (numFilesSelected > 0) {
			document.getElementById(this.customSettings.cancelButtonId).disabled = false;
		}
		
		/* I want auto start the upload and I can do that here */
		this.startUpload();
	} catch (ex)  {
        this.debug(ex);
	}
}

function uploadStart(file) {
	try {
		/* I don't want to do any file validation or anything,  I'll just update the UI and
		return true to indicate that the upload should start.
		It's important to update the UI here because in Linux no uploadProgress events are called. The best
		we can do is say we are uploading.
		 */
		 //Capture start time
		var currentTime = new Date()
		iTime = currentTime;
		//Set Timeleft to estimating
		Timeleft = "Estimating...";
		$('.green .progressBarInProgress').show();
	
		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setStatus("Uploading...");
		progress.toggleCancel(true, this);
	}
	catch (ex) {}
	
	return true;
}

function uploadProgress(file, bytesLoaded, bytesTotal) {
	try {
		var currentTime = new Date()
		var percent = Math.ceil((bytesLoaded / bytesTotal) * 100);

		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setProgress(percent);

		var tempTime = 0;
		//rndfilesize = round file size		
		var rndfilesize = roundNumber(((file.size/1024)/1024),1);
		//uploaded = how much has been uploaded
		var uploaded = roundNumber(((bytesLoaded/1024)/1024),1);
		//uTime = uploadTime (time spent uploading)
		var uTime = (Math.ceil(currentTime-iTime)/1000);
		//uSpeed = uploadSpeed (40 kB/s)
		var uSpeed = Math.floor(roundNumber(((bytesLoaded/uTime)/1024),2));
		//tempTime = store time for following functions
		var tempTime = uTime;
		//uploadTime in min:sec
		uTime = minsec("m", tempTime) + ":" + minsec("s", tempTime) + " elapsed";
		//tempTime = reassign val
		tempTime = roundNumber(((((bytesTotal-bytesLoaded)/uSpeed)/60)/10),2);
		if (tempTime != "Infinity") {
			if (tempTime > 0) {
				//if greater than 0
				//Timeleft in min:sec
				Timeleft = minsec("m", tempTime) + ":" + minsec("s", tempTime) + " remain";
			} else {
				Timeleft = "Estimating...";
			}
		} else {
			Timeleft = "Estimating...";
		}
		
		//Variables available
		//uSpeed = the rate of upload (40 kB/s)
		//uploaded = how much of the file has upload in MB
		//rndfilesize = file size in MB
		//uTime = how much time has been spent uploading in min:sec (xx:yy elapsed)
		//Timeleft = how much time is left in min:sec (xx:yy remain)
		progress.setStatus(uploaded + ' of ' + rndfilesize + ' MB at ' + uSpeed + ' KB/sec; ' + Timeleft + ' (' + percent + '%)');
				
	} catch (ex) {
		this.debug(ex);
	}
	$('.progressContainer').not('.green').find('.progressBarWrapper, .progressBarComplete').hide();
	$('.green .progressBarWrapper').show();
	$('.progressBarInProgress').filter(':parents(.progressBarWrapper)').wrap('<div class="progressBarWrapper" />');
	$('.progressBarInProgress .progressBarWrapper').remove();
}

function uploadSuccess(file, serverData) {
	$('.progressContainer').not('.green').find('.progressBarWrapper').hide();
	$('#fileslist').load(document.URL.replace('#', '') + "&ajax=1", function (data) {
	});
	if ($('.progressContainer:not(.green, .blue)').length > 0) {
		var statuscount = $('#divStatus').text();
		var statuscount = explode(' ', statuscount);
		var statusnum = eval(statuscount[0]) + 1;
		$('#divStatus').html(statusnum + " file" + (statusnum === 1 ? "" : "s") + " uploaded");
	}
	try {
		var currentTime = new Date()
		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setComplete();
		//Calculate upload time
		var cTime = (Math.ceil(currentTime-iTime)/1000);
		var zmin = 0;
		var zsec = 0;
		zmin = Math.floor(cTime/60);
		if (zmin < 10) {
			zmin = "0" + zmin;	
		}
		zsec = Math.ceil(cTime % 60);
		if (zsec < 10) {
			zsec = "0" + zsec;	
		}
		//Show how long the upload took
		progress.setStatus("Completed in " + zmin + ":" + zsec);
		progress.toggleCancel(false);

	} catch (ex) {
		this.debug(ex);
	}
	$('.progressContainer').not('.green').find('.progressBarWrapper').hide();
}

function uploadError(file, errorCode, message) {
	$('.progressContainer').not('.green').find('.progressBarWrapper').hide();
	try {
		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setError();
		progress.toggleCancel(false);

		switch (errorCode) {
		case SWFUpload.UPLOAD_ERROR.HTTP_ERROR:
			progress.setStatus("Upload Error: " + message);
			this.debug("Error Code: HTTP Error, File name: " + file.name + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_FAILED:
			progress.setStatus("Upload Failed.");
			this.debug("Error Code: Upload Failed, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.IO_ERROR:
			progress.setStatus("Server (IO) Error");
			this.debug("Error Code: IO Error, File name: " + file.name + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.SECURITY_ERROR:
			progress.setStatus("Security Error");
			this.debug("Error Code: Security Error, File name: " + file.name + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
			progress.setStatus("Upload limit exceeded.");
			this.debug("Error Code: Upload Limit Exceeded, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.FILE_VALIDATION_FAILED:
			progress.setStatus("Failed Validation.  Upload skipped.");
			this.debug("Error Code: File Validation Failed, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
			// If there aren't any files left (they were all cancelled) disable the cancel button
			if (this.getStats().files_queued === 0) {
				document.getElementById(this.customSettings.cancelButtonId).disabled = true;
			}
			progress.setStatus("Cancelled");
			progress.setCancelled();
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
			progress.setStatus("Stopped");
			break;
		default:
			progress.setStatus("Unhandled Error: " + errorCode);
			this.debug("Error Code: " + errorCode + ", File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			break;
		}
	} catch (ex) {
        this.debug(ex);
    }
	$('.progressContainer').not('.green').find('.progressBarWrapper').hide();
}

function uploadComplete(file) {
	if (this.getStats().files_queued === 0) {
		document.getElementById(this.customSettings.cancelButtonId).disabled = true;
	}
	$('.progressContainer').find('.progressBarComplete').hide();
	$('.progressContainer').find('.progressBarError').hide();
}

// This event comes from the Queue Plugin
function queueComplete(numFilesUploaded) {
	var status = document.getElementById("divStatus");
	status.innerHTML = numFilesUploaded + " file" + (numFilesUploaded === 1 ? "" : "s") + " uploaded";
	$('.progressContainer').find('.progressBarWrapper').hide();
}