/**
 * @file bfi_email_signup.js
 */

(function ($) {
  // If popup is enabled for mouse or touch events.
  if (Drupal.settings.bfi_email_signup.bfi_email_signup_enable_mouse_events
    || Drupal.settings.bfi_email_signup.bfi_email_signup_enable_touch_events) {

    var popupPositions = [];
    var mouseEvents = [];

    // Set the popup position and randomize if required.
    if (Drupal.settings.bfi_email_signup.bfi_email_signup_randomize_top) popupPositions.push('top');
    if (Drupal.settings.bfi_email_signup.bfi_email_signup_randomize_center) popupPositions.push('center');
    if (Drupal.settings.bfi_email_signup.bfi_email_signup_randomize_bottom) popupPositions.push('bottom');
    Drupal.settings.bfi_email_signup.bfi_email_signup_position = popupPositions[bfiEmailSignupRandomNumber(0, popupPositions.length - 1)];

    // Set the trigger and randomize if required.
    if (Drupal.settings.bfi_email_signup.bfi_email_signup_trigger_mouse_move) mouseEvents.push('mousemove');
    if (Drupal.settings.bfi_email_signup.bfi_email_signup_trigger_mouse_leave) mouseEvents.push('mouseleave');
    Drupal.settings.bfi_email_signup.bfi_email_signup_trigger = mouseEvents[bfiEmailSignupRandomNumber(0, mouseEvents.length - 1)];

    $(document).ready(function() {

      if (!bfiEmailSignupCookie()) {
        // Show the block if no cookies were found.
        $('.block .content .bfi-email-signup-block').show();
        // Fix the lazy loading issue with images embeded in the popup.
        bfiEmailSignupFixLazyImageLoading();
      }

      // Show the signup popup for desktop on mouse events if enabled.
      if (Drupal.settings.bfi_email_signup.bfi_email_signup_enable_mouse_events) {
        $(document).one(Drupal.settings.bfi_email_signup.bfi_email_signup_trigger, function(e) {
          if (!bfiEmailSignupCookie() && e.pageX != 0 && e.pageY != 0) { // pageX/Y to stop trigger on mouse events for touch devices.
            // If mouse event is mouse leave then set the delay to zero.
            if (Drupal.settings.bfi_email_signup.bfi_email_signup_trigger == 'mouseleave') Drupal.settings.bfi_email_signup.bfi_email_signup_delay = '0';

            // Tracking
            bfiEmailSignupEventTracking('Display');

            bfiEmailSignupShowPopup();
          }
        });
      }

      // Show the signup popup for touch events if enabled.
      if (Drupal.settings.bfi_email_signup.bfi_email_signup_enable_touch_events) {
        $(document).one('touchmove', function(e) {
          if (!bfiEmailSignupCookie()) {
            // Set trigger for tracking.
            Drupal.settings.bfi_email_signup.bfi_email_signup_trigger = 'touchmove';

            // Tracking.
            bfiEmailSignupEventTracking('Display');

            bfiEmailSignupShowPopup();
          }
        });
      }

      // Decline signup.
      $(document).on('click', '#bfi-email-signup-overlay #bfi-email-signup-form-container .bfi-email-signup-decline', function(e) {
        e.preventDefault();
        $('#bfi-email-signup-overlay').fadeOut();

        // Tracking.
        bfiEmailSignupEventTracking('Declined');

        bfiEmailSignupSetCookie('declined');

        return false;
      });

      // Signup from popup.
      $(document).on('click', '#bfi-email-signup-overlay #bfi-email-signup-form-container .bfi-email-signup-submit', function(e) {
        if (!bfiEmailSignupValidateEmail($.trim($('#bfi-email-signup-overlay form .bfi-email-signup-email').val()))) {
          e.preventDefault();
          $('#bfi-email-signup-overlay #bfi-email-signup-form-container .bfi-email-signup-validation').show();
          $('#bfi-email-signup-overlay #bfi-email-signup-form-container .bfi-email-signup-email').addClass('error');

          return false;
        }
        else {
          // Tracking.
          bfiEmailSignupEventTracking('Accepted');

          bfiEmailSignupSetCookie('accepted');
        }
      });

      // Signup from block.
      $(document).on('click', '.block #bfi-email-signup-form-container .bfi-email-signup-submit', function(e) {
        if (!bfiEmailSignupValidateEmail($.trim($('.block #bfi-email-signup-container form .bfi-email-signup-email').val()))) {
          e.preventDefault();
          $('.block #bfi-email-signup-form-container .bfi-email-signup-validation').show();
          $('.block #bfi-email-signup-form-container .bfi-email-signup-email').addClass('error');

          return false;
        }
        else {
          bfiEmailSignupSetCookie('accepted');
        }
      });

      var defaultSignupTextfieldValue = Drupal.settings.bfi_email_signup.bfi_email_signup_textfield_value;
      $('.bfi-email-signup-email').attr('value', defaultSignupTextfieldValue);
      $(document).on('focus', '.bfi-email-signup-email', function(e) {
        if (this.value == defaultSignupTextfieldValue) {
          this.value = '';
          $(this).removeClass('with-placeholder');
        }
      });

      $(document).on('blur', '.bfi-email-signup-email', function(e) {
        if (this.value == '') {
          this.value = defaultSignupTextfieldValue;
          $(this).addClass('with-placeholder');
        }
      });
    });
  }

  // Check if we should take in to consideration the user cookie.
  function bfiEmailSignupCookie() {
    var declinedCookie = document.cookie.indexOf('bfi-email-signup-cookie-declined');
    var acceptedCookie = document.cookie.indexOf('bfi-email-signup-cookie-accepted');

    if (acceptedCookie < 0 && declinedCookie < 0) {
      return false;
    }
    else {
      return true;
    }
  }

  // Set the cookie if declined.
  function bfiEmailSignupSetCookie(cookieType) {
    var date = new Date();
    var domain = '';

    switch (cookieType) {
      case 'declined':
        date.setDate(date.getDate() + Drupal.settings.bfi_email_signup.bfi_email_signup_cookie_length);
        break;
      case 'accepted':
        date.setDate(date.getDate() + 150);
        break;
    }

    if (Drupal.settings.bfi_email_signup.bfi_email_signup_domain) {
      domain = ';domain=' + Drupal.settings.bfi_email_signup.bfi_email_signup_domain;
      document.domain = Drupal.settings.bfi_email_signup.bfi_email_signup_domain;
    }

    document.cookie = "bfi-email-signup-cookie-" + cookieType + "=1;expires=" + date.toUTCString()  + domain + ";path=" + Drupal.settings.basePath;
  }

  // Email validation.
  function bfiEmailSignupValidateEmail(email) {
    var e = /\S+@\S+\.\S+/;
    return e.test(email);
  }

  // Slide in the dialog from the top.
  function bfiEmailSignupDialogTop(delay, popupColour, popupTextColour) {
    $('#bfi-email-signup-overlay #bfi-email-signup-container').addClass('edge');
    $('#bfi-email-signup-overlay').addClass('show-edge').css({'top' : -1 * $('#bfi-email-signup-overlay').outerHeight(true), 'background-color' : popupColour, 'color': popupTextColour}).delay(delay).show().animate({'top': 0}, 600);
  }

  // Fade in the dialog into the center.
  function bfiEmailSignupDialogCenter(delay, popupColour, popupTextColour) {
    $('#bfi-email-signup-overlay #bfi-email-signup-container').addClass('center').css({'background-color' : popupColour, 'color': popupTextColour});
    $('#bfi-email-signup-overlay').addClass('show-overlay').delay(delay).fadeIn();
  }

  // Slide in the dialog from the bottom.
  function bfiEmailSignupDialogBottom(delay, popupColour, popupTextColour) {
    $('#bfi-email-signup-overlay #bfi-email-signup-container').addClass('edge');
    $('#bfi-email-signup-overlay').addClass('show-edge').css({'bottom' : -1 * $('#bfi-email-signup-overlay').outerHeight(true), 'background-color' : popupColour, 'color': popupTextColour}).delay(delay).show().animate({'bottom': 0}, 600);
  }

  // Show the popup according to the position.
  function bfiEmailSignupShowPopup() {
    var delay = parseInt(Drupal.settings.bfi_email_signup.bfi_email_signup_delay)*1000;
    var popupColour = Drupal.settings.bfi_email_signup.bfi_email_popup_colour;
    var popupTextColour = Drupal.settings.bfi_email_signup.bfi_email_popup_text_colour;

    switch (Drupal.settings.bfi_email_signup.bfi_email_signup_position) {
      case 'top':
        bfiEmailSignupDialogTop(delay, popupColour, popupTextColour);
        break;
      case 'center':
        bfiEmailSignupDialogCenter(delay, popupColour, popupTextColour);
        break;
      case 'bottom':
        bfiEmailSignupDialogBottom(delay, popupColour, popupTextColour);
        break;
    }
  }

  // Generate a random number between the min and max values.
  function bfiEmailSignupRandomNumber(min, max) {
    return Math.floor(Math.random()*(max-min+1)+min);
  }

  // Execute some tracking code.
  function bfiEmailSignupEventTracking(action) {
    _gaq.push(['_trackEvent', 'BFI Email signups', action, Drupal.settings.bfi_email_signup.bfi_email_signup_position + ' - ' + Drupal.settings.bfi_email_signup.bfi_email_signup_trigger, , true]);
  }

  // Corporate site image lazy loading isn't playing nicely with the pop when using embed token to embed an image.
  function bfiEmailSignupFixLazyImageLoading() {
    $('#bfi-email-signup-text-container .lazy-hidden').each(function() {
      $(this).removeAttr('style').attr('src', $(this).data('src')).removeClass('lazy-hidden').addClass('lazy-loaded');
    });
  }

})(jQuery);;