//******************************************************************************************************
//   ATTENTION: THIS FILE HEADER MUST REMAIN INTACT. DO NOT DELETE OR MODIFY THIS FILE HEADER.
//
//   Name: uu_file_upload.js
//   Revision: 2.5
//   Date: 29/10/2007 7:34PM
//   Link: http://uber-uploader.sourceforge.net
//   Initial Developer: Peter Schmandra  http://www.webdice.org
//
//   Licence:
//   The contents of this file are subject to the Mozilla Public
//   License Version 1.1 (the "License"); you may not use this file
//   except in compliance with the License. You may obtain a copy of
//   the License at http://www.mozilla.org/MPL/
// 
//   Software distributed under the License is distributed on an "AS
//   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
//   implied. See the License for the specific language governing
//   rights and limitations under the License.
//
//***************************************************************************************************************

var upload_range = 1;
var get_status_speed;
var get_status_url;
var get_data_loop = false;
var seconds = 0;
var minutes = 0;
var hours = 0;
var info_width = 0;
var info_bytes = 0;
var info_time_width = 500;
var info_time_bytes = 15;
var cedric_hold = true;
var total_upload_size = 0;
var total_Kbytes = 0;
var AJAX_req = false;
var timerID;
var bytesID;
var statusID; 


// Check the file format before uploading
function checkFileNameFormat(){
	if(!check_file_name_format){ return false; }
	
	for(var i = 0; i < upload_range; i++){
		if(document.form_upload.elements['upfile_' + i].value != ""){
			var string = document.form_upload.elements['upfile_' + i].value;
			var num_of_last_slash = string.lastIndexOf("\\");

			if(num_of_last_slash < 1){ num_of_last_slash = string.lastIndexOf("/"); }

			var file_name = string.slice(num_of_last_slash + 1, string.length);
			var re = /^[\węóąśłżźćń][\w\.\-ęóąśłżźćń ]{1,60}$/i;
				
			if(!re.test(file_name)){	
				alert("Wybrany format pliku nie jest obsługiwany. \n\n1. Dłogość nazwy pliku nie może być większa nż 60 znaków\n2. Nazwa pliku może składać się tylko ze znaków alfanumetycznych oraz '_' i '-'\n");
				return true;
			}
		}
	}
	return false;
}

// Check for illegal file extentions
function checkDisallowFileExtensions(){
	if(!check_disallow_extensions){ return false; }
	
	for(var i = 0; i < upload_range; i++){
		if(document.form_upload.elements['upfile_' + i].value != ""){
			if(document.form_upload.elements['upfile_' + i].value.match(disallow_extensions)){
				var string = document.form_upload.elements['upfile_' + i].value;
				var num_of_last_slash = string.lastIndexOf("\\");

				if(num_of_last_slash < 1){ num_of_last_slash = string.lastIndexOf("/"); }

				var file_name = string.slice(num_of_last_slash + 1, string.length);
				var file_extension = file_name.slice(file_name.indexOf(".")).toLowerCase();
				
				alert('Upload pliku z rozszerzeniem "' + file_extension + '" nie jest odsługiwany.');
				return true;
			}
		}
	}
	return false;
}

// Check for legal file extentions
function checkAllowFileExtensions(){
	if(!check_allow_extensions){ return false; }
	
	for(var i = 0; i < upload_range; i++){
		if(document.form_upload.elements['upfile_' + i].value != ""){
			if(!document.form_upload.elements['upfile_' + i].value.match(allow_extensions)){
				var string = document.form_upload.elements['upfile_' + i].value;
				var num_of_last_slash = string.lastIndexOf("\\");

				if(num_of_last_slash < 1){ num_of_last_slash = string.lastIndexOf("/"); }

				var file_name = string.slice(num_of_last_slash + 1, string.length);
				var file_extension = file_name.slice(file_name.indexOf(".")).toLowerCase();
				
				alert('Upload pliku z rozszerzeniem "' + file_extension + '" nie jest odsługiwany.');
				return true;
			}
		}
	}
	return false;
}

// Make sure the user selected at least one file
function checkNullFileCount(){
	if(!check_null_file_count){ return false; }

	var null_file_count = 0;

	for(var i = 0; i < upload_range; i++){
		if(document.form_upload.elements['upfile_' + i].value == ""){ null_file_count++; }
	}

	if(null_file_count == upload_range){
		alert("Wybierz plik z plakatem.");
		return true;
	}
	else{ return false; }
}

// Make sure the user is not uploading duplicate files
function checkDuplicateFileCount(){
	if(!check_duplicate_file_count){ return false; }

	var duplicate_flag = false;
	var file_count = 0;
	var duplicate_msg = "Wybrane pliki potwarzają się.\n\n";
	var file_name_array = new Array();

	for(var i = 0; i < upload_range; i++){
		if(document.form_upload.elements['upfile_' + i].value != ""){
			var string = document.form_upload.elements['upfile_' + i].value;
			var num_of_last_slash = string.lastIndexOf("\\");

			if(num_of_last_slash < 1){ num_of_last_slash = string.lastIndexOf("/"); }

			var file_name = string.slice(num_of_last_slash + 1, string.length);
			            
			file_name_array[i] = file_name;
		}
	}

	var num_files = file_name_array.length;
       
	for(var i = 0; i < num_files; i++){
		for(var j = 0; j < num_files; j++){
			if(file_name_array[i] == file_name_array[j] && file_name_array[i] != null){ file_count++; }
		}
		if(file_count > 1){
			duplicate_msg += 'Duplicate file "' + file_name_array[i] + '" detected in slot ' + (i + 1) + ".\n";
			duplicate_flag = true;
		}
		file_count = 0;
	}

	if(duplicate_flag){
		alert(duplicate_msg);
		return true; 
	}
	else{ return false; }
}

// Handle user pressing 'Enter' in the upload slots
function handleKey(event){
        if(document.all){ if(window.event.keyCode == 13){ return false; } }
        else{ if(event && event.which == 13){ return false; } }
}

// Submit the upload form
function uploadFiles(){
	if(checkFileNameFormat()){ return false; }
	if(checkDisallowFileExtensions()){ return false; }
	if(checkAllowFileExtensions()){ return false; }
	if(checkNullFileCount()){ return false; }
	if(checkDuplicateFileCount()){ return false; }
	
	if(show_files_uploaded){ 
		var total_uploads = 0;

		for(var i = 0; i < upload_range; i++){
			if(document.form_upload.elements['upfile_' + i].value != ""){ total_uploads++; }
		}

		document.getElementById('total_uploads').innerHTML = total_uploads;
	}
	
	document.form_upload.submit();
	document.getElementById('upload_button').disabled = true;
	
	for(var i = 0; i < upload_range; i++){ document.form_upload.elements['upfile_' + i].disabled = true; }

	iniProgressRequest();
	document.getElementById('blad1').innerHTML='Twoje zdjęcie jest aktualnie przesyłane na serwer';
}

// Reset the file upload page 
function resetForm(){ location.href = self.location; }

// Hide the progress bar
function hideProgressBar(){ document.getElementById('progress_bar').style.display = "none"; }

// Initialize the file upload page
function iniFilePage(){
	resetProgressBar();

	for(var i = 0; i < upload_range; i++){
		document.form_upload.elements['upfile_' + i].disabled = false;
		document.form_upload.elements['upfile_' + i].value = "";
	}

	document.getElementById('progress_info').innerHTML = "";
	document.getElementById('upload_button').disabled = false;
	document.getElementById('progress_bar').style.display = "none";
	document.form_upload.reset();
}

// Reset the progress bar
function resetProgressBar(){
	get_status_url = "";
	get_data_loop = false;
	seconds = 0;
	minutes = 0;
	hours = 0;
	info_width = 0;
	info_bytes = 0;
	cedric_hold = true;
	total_upload_size = 0;
	total_Kbytes = 0;
	
	document.getElementById('upload_status').style.width = '0px';
	document.getElementById('blad1').innerHTML='';
	if(show_percent_complete){ document.getElementById('percent').innerHTML = '0%'; }
	if(show_files_uploaded){ document.getElementById('uploaded_files').innerHTML = 0; }
	if(show_files_uploaded){ document.getElementById('total_uploads').innerHTML = ''; }
	if(show_current_position){ document.getElementById('current').innerHTML = 0; }
	if(show_current_position){ document.getElementById('total_kbytes').innerHTML = ''; }
	if(show_elapsed_time){ document.getElementById('time').innerHTML = 0; }
	if(show_est_time_left){ document.getElementById('remain').innerHTML = 0; }
	if(show_est_speed){ document.getElementById('speed').innerHTML = 0; }
}

// Stop the upload
function stopUpload(){
	try{ window.stop(); }
	catch(e){
		try{ document.execCommand('Stop'); }
		catch(e){}
	}
	showMessage('');
}

// Display a message
function showMessage(message){ document.getElementById('progress_info').innerHTML = message; }

// Add one upload slot
function addUploadSlot(num){
	if(upload_range < max_upload_slots){
		if(num == upload_range){
			var up = document.getElementById('upload_slots');
			var dv = document.createElement("div");
			
			dv.innerHTML = '<input type="file" name="upfile_' + upload_range + '" size="90" onChange="addUploadSlot('+(upload_range + 1)+')" onKeypress="return handleKey(event)">';
			up.appendChild(dv);
			upload_range++;
			up = null;
			dv = null;
		}
	}
}

// Make the progress bar smooth
function smoothCedricStatus(){
	if(info_width < progress_bar_width && !cedric_hold){
		info_width++;
		var dom = document.getElementById('upload_status');
		dom.style.width = info_width + 'px';
		dom = null;
	}

	if(get_data_loop){
		clearTimeout(statusID);
		statusID = setTimeout("smoothCedricStatus()", info_time_width); 
	}
}

// Make the bytes uploaded smooth
function smoothCedricBytes(){
	if(info_bytes < total_Kbytes && !cedric_hold){
		info_bytes++;
		var dom = document.getElementById('current')
		dom.innerHTML = info_bytes;
		dom = null;
	}

	if(get_data_loop){
		clearTimeout(bytesID); 
		bytesID = setTimeout("smoothCedricBytes()", info_time_bytes); 
	}
}

// Get the progress of the upload
function getProgressStatus(){
	var jsel = document.createElement('SCRIPT');
	var day = new Date;
	var dom = document.body;

	jsel.type = 'text/javascript';
	jsel.src = get_status_url + "&rnd_id=" + day.getTime();

	dom.appendChild(jsel);
	dom = null;
	jsel = null;
	day = null;

	if(get_data_loop){
		clearTimeout(timerID); 
		timerID = setTimeout("getProgressStatus()", get_status_speed); 
	}
}

// Calculate and display upload stats
function setProgressStatus(bytes_read, lapsed_time, uploaded_files){
	var byte_speed = 0;
	var time_remaining = 0;
	var dom;

	if(lapsed_time > 0){ byte_speed = bytes_read / lapsed_time; }
	if(byte_speed > 0){ time_remaining = Math.round((total_upload_size - bytes_read) / byte_speed); }

	if(cedric_progress_bar == 1){
		if(byte_speed != 0){
			info_time_width = Math.round(total_upload_size * 1000 / (byte_speed * progress_bar_width));
			info_time_bytes = Math.round(1024000 / byte_speed);
		}
		else{
			info_time_width = 200;
			info_time_bytes = 15;
		}
	}
	
	// Calculate percent finished
	var percent_float = bytes_read / total_upload_size;
	var percent = Math.round(percent_float * 100);
	var progress_bar_status = Math.round(percent_float * progress_bar_width);

	// Calculate time remaining
	var remaining_sec = (time_remaining % 60);
	var remaining_min = (((time_remaining - remaining_sec) % 3600) / 60);
	var remaining_hours = ((((time_remaining - remaining_sec) - (remaining_min * 60)) % 86400) / 3600);

	if(remaining_sec < 10){ remaining_sec = '0' + remaining_sec; }
	if(remaining_min < 10){ remaining_min = '0' + remaining_min; }
	if(remaining_hours < 10){ remaining_hours = '0' + remaining_hours; }

	var time_remaining_f = remaining_hours + ':' + remaining_min + ':' + remaining_sec;
	var Kbyte_speed = Math.round(byte_speed / 1024);
	var Kbytes_read = Math.round(bytes_read / 1024);

	if(cedric_progress_bar == 1){
		cedric_hold = false;

		//if(progress_bar_status > info_width && Kbytes_read > info_bytes){ 
			//info_width = progress_bar_status;
			//info_bytes = Kbytes_read; 
		//}
		//else{ cedric_hold = true; }

		info_width = progress_bar_status;
		info_bytes = Kbytes_read;
	}
	else{
		dom = document.getElementById('upload_status');
		dom.style.width = progress_bar_status + 'px';
		
		if(show_current_position){ 
			dom = document.getElementById('current');
			dom.innerHTML = Kbytes_read; 
		}
	}
	if(show_percent_complete){ 
		dom = document.getElementById('percent')
		dom.innerHTML = percent + '%'; 
		
	}
	if(show_files_uploaded){ 
		dom = document.getElementById('uploaded_files');
		dom.innerHTML = uploaded_files; 
	}
	if(show_est_time_left){ 
		dom = document.getElementById('remain');
		dom.innerHTML = time_remaining_f; 
	}
	if(show_est_speed){ 
		dom = document.getElementById('speed');
		dom.innerHTML = Kbyte_speed; 
	}
	
	dom = null;
}

// Calculate the time spent uploading
function getElapsedTime(){
	seconds++;

	if(seconds == 60){
		seconds = 0;
		minutes++;
	}
    	
	if(minutes == 60){
		minutes = 0;
		hours++;
	}
    	
	var hr = "" + ((hours < 10) ? "0" : "") + hours;
	var min = "" + ((minutes < 10) ? "0" : "") + minutes;
	var sec = "" + ((seconds < 10) ? "0" : "") + seconds;
	var dom = document.getElementById('time')
	
	dom.innerHTML = hr + ":" + min + ":" + sec;
	
	dom = null;
	hr = null;
	min = null;
	sec = null;

	if(get_data_loop){ setTimeout("getElapsedTime()", 1000); }
}

// Create the AJAX request
function createRequestObject(){
	var req = false;

	if(window.XMLHttpRequest){
		req = new XMLHttpRequest();
		
		if(req.overrideMimeType){ req.overrideMimeType('text/xml'); }
	}
	else if(window.ActiveXObject){
		try{ req = new ActiveXObject("Msxml2.XMLHTTP"); }
		catch(e){
			try{ req = new ActiveXObject("Microsoft.XMLHTTP"); }
			catch(e){}
		}
	}
	
	if(!req){ return false; }
	else{ return req; }
}

// Initialize the progress bar
function iniProgressRequest(){
	var day = new Date
	var ini_script = path_to_ini_status_script + "&rnd_id=" + day.getTime(); 
	
	AJAX_req = createRequestObject();
	
	if(AJAX_req){
		document.getElementById('progress_info').innerHTML = "Inicjalizacja ...";
		AJAX_req.onreadystatechange = processReqChange;
		AJAX_req.open("GET", ini_script, true);
		AJAX_req.send(null);
	}
	else{ document.getElementById('progress_info').innerHTML = "Twoja przeglądarka nie obsługuje AJAX"; } 
}

// Initialize the progress bar
function processReqChange(){
	if(AJAX_req.readyState == 4){
		if(AJAX_req.status == 200){
			var xml = AJAX_req.responseXML;
			
			if(xml.getElementsByTagName('error_status').item(0).firstChild.nodeValue == 1){
				document.getElementById('progress_info').innerHTML = xml.getElementsByTagName('error_msg').item(0).firstChild.nodeValue;
				
				if(xml.getElementsByTagName('stop_upload').item(0).firstChild.nodeValue == 1){ stopUpload(); }
			}
			else{
				get_status_speed = xml.getElementsByTagName('get_data_speed').item(0).firstChild.nodeValue;
				total_upload_size = xml.getElementsByTagName('total_bytes').item(0).firstChild.nodeValue;
				total_Kbytes = Math.round(total_upload_size / 1024);
				get_status_url = "/uu_get_status.php?temp_dir=" + xml.getElementsByTagName('temp_dir').item(0).firstChild.nodeValue + "&temp_sid=" + xml.getElementsByTagName('temp_sid').item(0).firstChild.nodeValue + "&start_time=" + xml.getElementsByTagName('start_time').item(0).firstChild.nodeValue + "&total_upload_size=" + xml.getElementsByTagName('total_bytes').item(0).firstChild.nodeValue;
				get_data_loop = true;
				
				if(document.form_upload.embedded_upload_results && document.form_upload.embedded_upload_results.value == 1){
					document.getElementById('upload_div').style.display = "none";
				}
				
				document.getElementById('progress_bar').style.display = "";
				document.getElementById('progress_info').innerHTML = "Trwa wysyłanie pliku...";
				
				if(show_current_position){ document.getElementById('total_kbytes').innerHTML = total_Kbytes + " "; }
				if(show_elapsed_time){ getElapsedTime(); }
				
				getProgressStatus();
				
				if(cedric_progress_bar == 1){
					if(show_current_position){ smoothCedricBytes(); }
					smoothCedricStatus();
				}
			}
		}
		else{
			document.getElementById('progress_info').innerHTML = "Błąd: " + AJAX_req.status + " " + AJAX_req.statusText;
			//stopUpload();
		}
	}
}