var path = "/";
var path_upload ="typo3conf/ext/mtvideoupload/pi1/UBRupload.pl"; 
var allow_extensions = "(jpg|jpeg|gif|png|flv)";
var check_file_name_format = 1;
var check_null_file_count = 1;
var check_duplicate_file_count = 1;
var max_upload_slots = 5242880;
var cedric_progress_bar = 1;
var progress_bar_width = 400;
var show_percent_complete = 0;
var show_files_uploaded = 0;
var show_current_position = 0;
var show_elapsed_time = 0;
var show_est_time_left = 0;
var show_est_speed = 0;


var upload_range = 2;
var get_data_loop = false;
var get_status_url;
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 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 = /^[\w][\w\.\-]{1,48}$/i;

			if(!re.test(file_name)){
				alert("Sorry, uploading files in this format is not allowed. Please ensure your file names follow this format: \n\n1. Entire filename must not exceed 48 characters\n2. Format should be filename.extension or filename\n3. Legal characters are 1-9, a-z, A-Z, '_', '-'.\n3. No blanks and no special characters are allowed\n");
				return true;
			}
		}
	}
	return false;
}

// Check for legal file extentions
function checkAllowFileExtensions(){
	for(var i = 0; i < upload_range; i++){
		if(document.form_upload.elements['upfile_' + i].value != ""){
		  if(!document.form_upload.elements['upfile_' + i].value.toLowerCase().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('Sorry, uploading a file with the extension "' + file_extension + '" is not allowed.');
				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("Please choose a file to upload.");
		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 = "Duplicate Upload Files Detected.\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; }
}


function resetForm(){ location.href = self.location; }
function hideProgressBar(){
  if( document.getElementById('progress_bar') ) 
	document.getElementById('progress_bar').style.display = "none"; 
}
function showDebugMessage(message){ document.getElementById('ubr_debug').innerHTML += message + '<br>'; }
function clearDebugMessage(){ document.getElementById('ubr_debug').innerHTML = ''; }
function showAlertMessage(message){ document.getElementById('ubr_alert').innerHTML = message; }
function clearAlertMessage(){ document.getElementById('ubr_alert').innerHTML = ''; }
function stopDataLoop(){ get_data_loop = false; }

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

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

  path = document.getElementById( 'upload_path_url' ).value ;
  if( path.match( /\?/ ) ) {
  	path += '&' ;
  }
  else {
    path += '?' ;
  }
  path_upload = document.getElementById( 'upload_pathpl_url' ).value  ;
  
  multi_configs_enabled = document.getElementById( 'multi_configs_enabled' ).value  ;
  if( document.getElementById( 'config_file' ) )
    config_file = document.getElementById( 'config_file' ).value  ;
  check_allow_extensions = document.getElementById( 'check_allow_extensions' ).value  ;
  if( document.getElementById( 'allow_extensions' ) )
    allow_extensions = document.getElementById( 'allow_extensions' ).value  ;
  check_file_name_format = document.getElementById( 'check_file_name_format' ).value  ;
  check_null_file_count = document.getElementById( 'check_null_file_count' ).value  ;
  check_duplicate_file_count = document.getElementById( 'check_duplicate_file_count' ).value  ;
  max_upload_slots = document.getElementById( 'max_upload_slots' ).value  ;
  cedric_progress_bar = document.getElementById( 'cedric_progress_bar' ).value  ;
  progress_bar_width = document.getElementById( 'progress_bar_width' ).value  ;
  show_percent_complete = document.getElementById( 'show_percent_complete' ).value  ;
  show_files_uploaded = document.getElementById( 'show_files_uploaded' ).value  ;
  show_current_position = document.getElementById( 'show_current_position' ).value  ;
  show_elapsed_time = document.getElementById( 'show_elapsed_time' ).value  ;
  show_est_time_left = document.getElementById( 'show_est_time_left' ).value  ;
  show_est_speed = document.getElementById( 'show_est_speed' ).value  ;
  
}

// Reset the progress bar
function resetProgressBar(){
  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';

  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; }
}

// 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; } }
}

// Link the upload
function linkUpload(){
  if(mtcheckrequired()){ return false; }
  if(checkFileNameFormat()){ 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;
  }

  var jsel = document.createElement('SCRIPT');
  var day = new Date;
  var dom = document.body;

  jsel.type = 'text/javascript';

  jsel.src = path + 'mode=link&rnd_id=' + day.getTime();

  dom.appendChild(jsel);
  
  document.getElementById('to_be_hidden').style.display = "none";

  dom = null;
  jsel = null;
  day = null;
}

//Submit the upload form
function startUpload(upload_id, debug_upload){
  document.getElementById('upload_button').disabled = true;
  document.form_upload.action = path_upload + '?upload_id=' +  upload_id;
  document.form_upload.submit();

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

  if(document.getElementById('upload_div')){ document.getElementById('upload_div').style.display = "none"; }

  if(!debug_upload){ initializeProgressBar(upload_id); }
}

// Initialize progress bar
function initializeProgressBar(upload_id){
  var jsel = document.createElement('SCRIPT');
  var dom = document.body;

  jsel.type = 'text/javascript';
  jsel.src = path + 'mode=setpro&upload_id=' + upload_id;
  dom.appendChild(jsel);

  dom = null;
  jsel = null;
  day = null;
}

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

//Start the progress bar
function startProgressBar(upload_id, upload_size, start_time){
  total_upload_size = upload_size;
  total_Kbytes = Math.round(total_upload_size / 1024);
  get_status_url = path + 'mode=getpro&upload_id=' + upload_id + '&start_time=' + start_time + '&total_upload_size=' + total_upload_size;
  get_data_loop = true;
  document.getElementById('progress_bar').style.display = "";
  showAlertMessage("Upload In Progress");

  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();
  }
}

// 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 = 500;
      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;
    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;
}

// 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;
}

// 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); }
}

// 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);
  }
}

// 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;
    }
  }
}

// Update counter below the video description textarea
function limitText(limitField, limitCount, limitNum) {
  var laenge = limitField.value.length; 
        if (limitField.value.length > limitNum) {
                alert('You have  '+(laenge-limitNum)+' Characters to much');
                limitField.value = limitField.value.substring(0, limitNum);
        } else {
                limitCount.value = limitNum - limitField.value.length;
        }
}

// checks if required fields are used 
function mtcheckrequired(){
 if( ! ( document.getElementById('contactname').value.length > 0 ) ) {
	alert( 'Please, complete the required field "Contact name" before submitting the formular!' ) ;  	 
 	return true;
 }
 if( ! ( document.getElementById('companyname').value.length > 0 ) ) {
	alert( 'Please, complete the required field "Company name" before submitting the formular!' ) ;  	 
 	return true;
 }
 if( ! ( document.getElementById('mail').value.length > 0 ) ) {
	alert( 'Please, complete the required field "Email" before submitting the formular!' ) ;  	 
 	return true;
 }
 if( ! ( document.getElementById('web').value.length > 0 ) ) {
	alert( 'Please, complete the required field "web" before submitting the formular!' ) ;  	 
 	return true;
 }
 if( document.getElementById('vdescription').value ) {
   if( ! ( document.getElementById('vdescription').value.length > 0 ) ) {
	alert( 'Please enter a description text of your video!' ) ;  	 
   	 return true;
   }
  }
 else {
	alert( 'Please enter a description text of your video!' ) ;  	 
 	return true ;
 }
 if( ! document.getElementById('tagree').checked ) {
	alert( 'Please confirm the terms and conditions for this agreement!' ) ;  	 
 	return true;
 }
 if( ! document.getElementById('gagree').checked ) {
	alert( 'Please confirm the confidence warranty!' ) ;  	 
 	return true;
 }
  if( ! document.form_upload.elements[ 'upfile_1' ].value.toLowerCase().match( '(\.jpeg$|\.jpg$)' ) ) {
    alert( 'The image file has to be in the JPG file format.' );
    return true;
   }
  if( ! document.form_upload.elements[ 'upfile_0' ].value.toLowerCase().match( '(\.flv$)' ) ) {
    alert( 'The video file has to be in the FLV file format.' );
    return true;
   }

 return false; 
}