var DialogInviteLoading = null;
var DialogInviteForm = null;
var DialogInviteSending = null;
var DialogInviteComplete = null;

var iv_ssid = null;
var iv_key = null;
var member = true;

function AlbumInvite() {
   advAJAX.post({
      "cmd"     : "invite_album",
   onLoading: function(obj) {
      //Core.hideElement("album_invite_form");
      if (!DialogInviteForm) {
         DialogInviteForm = new ModalDialog('album_invite_form');
      }
      DialogInviteForm.setContent('<center><img src=http://images.fotki.com/progress.gif> <span class=\"text2b black\">Loading...</span></center>');
      //Core.setText('album_invite_form', '<center><img src=http://images.fotki.com/progress.gif> <span class=\"text2b black\">Loading...</span></center>');
		//Core.flushElementCache();      
      //DialogInviteForm = new ModalDialog('album_invite_form');
      setTimeout('DialogInviteForm.show();', 20);    
   },        
   onSuccess : function(obj) {
      var response = obj.responseText.split("||");
      DialogInviteForm.setContent(response[0]);
      eval(response[1]);
   }
   });
}


function addemail(email) {
  document.emailform.to.focus();
  if (document.emailform.to.value == 0) {
    document.emailform.to.value = email;
  } else {
     var index = document.emailform.to.value.indexOf("," + email);
     if (index == -1){
        index = document.emailform.to.value.indexOf(", " + email);
     }
     if (index == -1) {
       document.emailform.to.value=document.emailform.to.value+', '+email;
     } else {
        var regexp = new RegExp("," + email);
        var regexp2 = new RegExp("," +email);
        var regexp3 = new RegExp(", "+email);
        document.emailform.to.value = document.emailform.to.value.replace(regexp3, "");
        document.emailform.to.value = document.emailform.to.value.replace(regexp, "");
        document.emailform.to.value = document.emailform.to.value.replace(regexp2, "");
     }
  }
}

function checkEmailRun() {
	Core.setText('email_error', "");
	Core.setText('message_error', "");
	var check1 = checkEmails('field_to');
	var check2 = checkEmails('email_from');
	if (check1) { // if error
		Core.setText('email_error', "Wrong email address format.");
	} else if (check2){
	   Core.setText('from_error', "Wrong email address format."); 
	} else if (!(Core.getText('field_to'))) {
			Core.setText('email_error', "Please specify email address.");
	} else if (!(Core.getText('user_name'))) {
			Core.setText('from_error', "Please specify your name.");
	} else if (!(Core.getText('email_from'))) {
			Core.setText('from_error', "Please specify your email address.");
    } else if (!(Core.getText('message_text'))) {
			Core.setText('message_error', "Please type your text."); 	
	} else {	    
         sendEmail();
   }
}

function checkEmails(field){
	var txt = Core.getText(field); //specify the id of textarea
	var e_regexp = new RegExp("^([A-Za-z0-9\-\_\.])+@([A-Za-z0-9\-]+\.)+[A-Za-z]{2,4}$");
	var error = 0; // by default we have no error
	
	txt = txt.replace(/\n/g, "");
	txt = txt.replace(/\r/g, "");
	txt = txt.replace(/ /g, "");
	var matches = txt.split(",");

	for (var i = 0; i < matches.length; i++) {
    if (matches[i]) {	 
		  var email = matches[i];
		  if (!email.match(e_regexp)) { // if didn`t match - error is 1
			 error = 1;	
		  }
		}
	}
	return error;
}

var mailservice = 'fotki';

function setServ(type) {
  mailservice = type;
}

function encryptForInvite(str, pwd) {
  if(pwd == null || pwd.length <= 0) {
    alert("Please enter a password with which to encrypt the message.");
    return null;
  }
  var prand = "";
  for(var i=0; i<pwd.length; i++) {
    prand += pwd.charCodeAt(i).toString();
  }
  var sPos = Math.floor(prand.length / 5);
  var mult = parseInt(prand.charAt(sPos) + prand.charAt(sPos*2) + prand.charAt(sPos*3) + prand.charAt(sPos*4) + prand.charAt(sPos*5));
  var incr = Math.ceil(pwd.length / 2);
  var modu = Math.pow(2, 31) - 1;
  if(mult < 2) {
    alert("Algorithm cannot find a suitable hash. Please choose a different password. \nPossible considerations are to choose a more complex or longer password.");
    return null;
  }
  var salt = Math.round(Math.random() * 1000000000) % 100000000;
  prand += salt;
  while(prand.length > 10) {
    prand = (parseInt(prand.substring(0, 10)) + parseInt(prand.substring(10, prand.length))).toString();
  }
  prand = (mult * prand + incr) % modu;
  var enc_chr = "";
  var enc_str = "";
  for(var i=0; i<str.length; i++) {
    enc_chr = parseInt(str.charCodeAt(i) ^ Math.floor((prand / modu) * 255));
    if(enc_chr < 16) {
      enc_str += "0" + enc_chr.toString(16);
    } else enc_str += enc_chr.toString(16);
    prand = (mult * prand + incr) % modu;
  }
  salt = salt.toString(16);
  while(salt.length < 8)salt = "0" + salt;
  enc_str += salt;
  return enc_str;
}

function getContact() {

   var login = Core.getText("login");
   var password = Core.getText("password");
   
   if (mailservice == 'fotki') {
   
      password = encryptForInvite(password, iv_key);
   
      advAJAX.post({
      "login" : login,
      "passwd"  : password,
      "cmd"     : "get_contact",
      "mailservice" : mailservice,
      "iv_ssid" : iv_ssid,
      timeout : 28900,
   onTimeout : function() {
      Core.setText('loading', ''); 
      Core.setText('error', 'Connection timed out. Please try again.');
      Core.showElement('error');
   },
   onLoading : function (obj) {
      Core.hideElement('error');
      Core.setText('error', '');
      Core.setText('loading', '<img src=http://images.fotki.com/progress.gif> ');
   },
   onSuccess : function(obj) {
      var n = obj.responseText.indexOf('<!DOCTYPE'); 
      if (n == 0)  {
         Core.setText('password', '');
         Core.setText('loading', '');
         Core.setText('error', 'UserName or Password is incorrect.');
         Core.showElement('error');
      } else {     
         Core.hideElement('login_form');
         Core.setText('loading', '');
         Core.setText('login', '');
         Core.setText('password', '');
         Core.setText('add_book_' + mailservice, obj.responseText);
      }
   }
   });
   
   } else {
   
   password = password;
   
      advAJAX.post({
      "login" : login,
      "passwd"  : password,
      "cmd"     : "get_contact",
      "mailservice" : mailservice,
      timeout : 28900,
   onTimeout : function() {
      Core.setText('loading', ''); 
      Core.setText('error', 'Connection timed out. Please try again.');
      Core.showElement('error');
   },
   onLoading : function (obj) {
      Core.hideElement('error');
      Core.setText('error', '');
      Core.setText('loading', '<img src=http://images.fotki.com/progress.gif> ');
   },
   onSuccess : function(obj) {
      var n = obj.responseText.indexOf('Error'); 
      if (n == 0)  {
         Core.setText('password', '');
         Core.setText('loading', '');
         Core.setText('error', obj.responseText.substr(n + 7));
         Core.showElement('error');
      } else {     
         Core.hideElement('login_form');
         Core.setText('loading', '');
         Core.setText('login', '');
         Core.setText('password', '');
         Core.setText('add_book_' + mailservice, obj.responseText);
      }
   }
   });
   
   }
}

function sendEmail() {

  var display_name = Core.getText('user_name');
  var subject_text = display_name + Core.getText("subject_text");
  var checkbox = '';
   if (Core.getElementU('checkbox')) {
      checkbox =  '' + Core.getElementU("checkbox").checked;      
   }
  var pid =  '';
  var is_ecard = '';
  
  if (Core.getElementU('is_ecard')){
      is_ecard = Core.getText('is_ecard');
   }
  
  if (Core.getElementU('pid')) {
      pid =  Core.getText("pid");
      progress_text = "E-card sending...";
      limit_text = "Dayly e-cards limit reached";
      complite_text = "E-card sent";
   } else {
      progress_text = "Sending invitation...";
      limit_text = "Daily invitation limit reached";
      complite_text = "Invitation sent";
   }
  
  advAJAX.post({
		"cmd"     : "invite_sendemail",
      "to"      : Core.getText("field_to"),
		"subject" : subject_text,
		"text"    : Core.getText("message_text"),
		"checkbox" : checkbox,
		"email_from" : Core.getText("email_from"),
		"user_name"  : display_name,
      "pid"   : pid,
      "is_ecard" : is_ecard,
		onLoading : function (obj) {
		  DialogInviteForm.hide();
        Core.setText('album_invite_sending', '<center><img src=http://images.fotki.com/progress.gif> <span class=\"text2b black\">'+progress_text+'</span></center>');
        DialogInviteSending = new ModalDialog('album_invite_sending');
        DialogInviteSending.show();
    },
		onSuccess : function(obj) {
         var n = obj.responseText.indexOf('ERROR'); 
      setTimeout('DialogInviteSending.hide();', 3000);
		  if (n == 0)  {
        Core.setText('album_invite_complete', '<center><span class=\"text2b black\"><img src=http://images.fotki.com/cart/warning.gif>'+limit_text+'</span></center>');
        DialogInviteComplete = new ModalDialog('album_invite_complete');
        setTimeout('DialogInviteComplete.show();', 3000);
        setTimeout('DialogInviteComplete.hide();', 5000);
      } else {     
         Core.setText('album_invite_complete', '<center><img src=http://images.fotki.com/cart/ok.gif> <span class=\"text2b black\">'+complite_text+'</span></center>');
         DialogInviteComplete = new ModalDialog('album_invite_complete');
         setTimeout('DialogInviteComplete.show();', 3000);
         setTimeout('DialogInviteComplete.hide();', 5000);
      }
    }
	});

}

function setBg(element, bg) {
   element.style.background=bg;
}

function changeMailType(type) {
  var mails = ['hotmail', 'yahoo', 'fotki', 'gmail'];
  for (var i in mails) {
    if (mails[i] == type) {
       setServ(type);
       Core.setClassName(mails[i] + '_td', 'arrow_' + mails[i]);
       if ((mails[i] == "fotki" && !member) || mails[i] != "fotki") {
          Core.showElement('login_form');
       } else {
          Core.hideElement('login_form')
       }      
        Core.showElement("add_book_" + mails[i]);
    } else {
      Core.setClassName(mails[i] + '_td', '');
      Core.hideElement('error', '');
      Core.hideElement('add_book_' + mails[i]);
    }
    
  }
}