/* global Core */

var Core = window.Core || {};

Core.Drip = Core.Drip || (
	function ( document, window, $ ) {
		'use strict';

		/**
		 * Private functions and properties.
		 *
		 * @since 1.0.0
		 *
		 * @type {Object}
		 */
		var __private = {

			/**
			 * Validate email relying only on browser checks.
			 *
			 * @see https://stackoverflow.com/a/13975255/515162
			 *
			 * @since 1.0.0
			 *
			 * @param value String to check whether this is a valid email address.
			 *
			 * @return boolean
			 */
			isEmailValid: function ( value ) {
				var input = document.createElement( 'input' );

				input.type = 'email';
				input.required = true;
				input.value = value;

				return typeof input.checkValidity === 'function' ? input.checkValidity() : /\S+@\S+\.\S+/.test( value );
			}
		};

		/**
		 * Public functions and properties.
		 *
		 * @since 1.0.0
		 *
		 * @type {Object}
		 */
		var app = {

			visitor_uuid: '',
			userCity: '',
			userCountry: '',

			/**
			 * Start the engine. DOM is not ready yet, use only to init something.
			 *
			 * @since 1.0.0
			 */
			init: function () {

				// Do that when DOM is ready.
				$( document ).ready( app.ready );
			},

			/**
			 * DOM is fully loaded.
			 *
			 * @since 1.0.0
			 */
			ready: function () {
				app.setCountry();
				app.bindCheckoutEvents();
				app.checkCookies();
			},

			/**
			 * Check if the current session has any relevant cookies set.
			 */
			checkCookies: function () {
				var visitor_id = app.getCookie( 'mi_drip_visitor_uuid' );
				if ( visitor_id ) {
					app.visitor_uuid = visitor_id;
				}
			},

			/**
			 * Work with default events (blur, focus, etc).
			 *
			 * @since 1.0.0
			 */
			bindCheckoutEvents: function () {

				if ( typeof _dcq === 'undefined' ) {
					return;
				}

				var body = $( 'body' );
				var email_field = $( '#edd-email' );

				// Tag upgrades.
				if ( body.hasClass( 'upgrade-purchase' ) && '' !== email_field.val() ) {
					_dcq.push( [
						'identify',
						{
							email: email_field.val(),
							abandoned_cart_url: app.edd.getAbandonmentURL( 'upgrade' ),
							tags: [
								drip.tag_prefix + '-upgrade-to-' + drip.checkout_product_slug
							]
						}
					] );
				}

				// Tag renewals.
				if ( $( '.edd-sl-renewal-details' ).length > 0 && '' !== email_field.val() ) {
					_dcq.push( [
						'identify',
						{
							email: email_field.val(),
							abandoned_cart_url: app.edd.getAbandonmentURL(),
							tags: [
								drip.tag_prefix + '-renewal-intent',
							]
						}
					] );
				}

				// Don't proceed for logged in users (upgrades).
				if ( body.hasClass( 'logged-in' ) ) {
					return;
				}

				// Send Email.
				email_field.on( 'blur', function () {
					var email = $( this ).val(),
						plan_id = app.edd.getPlanId();

					if ( plan_id > 0 && __private.isEmailValid( email ) ) {
						var identity = {
							email: email,
							abandoned_cart_url: app.edd.getAbandonmentURL(),
							tags: [
								drip.tag_prefix + '-abandoned',
								app.edd.getPlan()
							],
							success: function ( response ) {
								if ( response.visitor_uuid ) {
									app.visitor_uuid = response.visitor_uuid;
									app.setCookie( 'mi_drip_visitor_uuid', app.visitor_uuid, 30 );
								}
							}
						};
						// Update the email instead of creating a new person for each request.
						if ( app.visitor_uuid ) {
							delete identity.email;
							identity.new_email = email;
						}

						if ( app.userCity ) {
							identity.city = app.userCity;
						}

						if ( app.userCountry ) {
							identity.country = app.userCountry;
						}

						_dcq.push( ['identify', identity] );
					}
				} );

				// Send User login.
				$( '#edd-user-login' ).on( 'blur', function () {
					var username = app.edd.getName( 'username' ),
						email = app.edd.getEmail();

					if ( username.length && __private.isEmailValid( email ) ) {
						_dcq.push( [
							'identify',
							{
								email: email,
								username: username,
								abandoned_cart_url: app.edd.getAbandonmentURL()
							}
						] );
					}
				} );

				// Send First name.
				$( '#edd-first' ).on( 'blur', function () {
					var first = app.edd.getName( 'first' ),
						email = app.edd.getEmail();

					if ( first.length && __private.isEmailValid( email ) ) {
						_dcq.push( [
							'identify',
							{
								email: email,
								first_name: first,
								abandoned_cart_url: app.edd.getAbandonmentURL()
							}
						] );
					}
				} );

				// Send Last name.
				$( '#edd-last' ).on( 'blur', function () {
					var last = app.edd.getName( 'last' ),
						email = app.edd.getEmail();

					if ( last.length && __private.isEmailValid( email ) ) {
						_dcq.push( [
							'identify',
							{
								email: email,
								last_name: last,
								abandoned_cart_url: app.edd.getAbandonmentURL()
							}
						] );
					}
				} );
				// Send phone
				$( '#edd-phone' ).on( 'blur', function () {
					var $phone = $( this ),
						fullNumber = $phone.intlTelInput( 'getNumber' ),
						email = app.edd.getEmail();
					setTimeout( function() {
						if ( fullNumber.length && $phone.intlTelInput( 'isValidNumber' ) && __private.isEmailValid( email ) ) {
							_dcq.push( [
								'identify',
								{
									email: email,
									plusthis: fullNumber,
									tags: [
										drip.tag_prefix + '-sms-cart-abandoned',
									],
									abandoned_cart_url: app.edd.getAbandonmentURL()
								}
							] );
						}
					}, 50);
				} );
			},

			/**
			 * Get the EDD specific data.
			 *
			 * @since 1.0.0
			 *
			 * @type {Object}
			 */
			edd: {
				/**
				 * Get the email from user registration form on Checkout page.
				 *
				 * @since 1.0.0
				 *
				 * @return {string}
				 */
				getEmail: function () {
					var $email = $( '#edd-email' );

					return $email.length ? $email.val() : '';
				},

				/**
				 * Get the Plan from the cart on Checkout page.
				 *
				 * @since 1.0.0
				 *
				 * @return {string}
				 */
				getPlan: function () {
					if ( drip.checkout_product_slug ) {
						return drip.tag_prefix + '-' + drip.checkout_product_slug;
					}

					return '';
				},

				/**
				 * Get the Plan ID (donwload ID from EDD) from the cart on Checkout page.
				 *
				 * @since 1.0.0
				 *
				 * @return {number}
				 */
				getPlanId: function () {
					var id = 0;

					if ( !$( '#edd_checkout_cart' ).length ) {
						return id;
					}

					var plan_id = $( '#edd_checkout_cart .edd_cart_item' ).first().data( 'download-id' );

					if ( typeof plan_id !== 'undefined' ) {
						id = parseInt( plan_id, 10 );
					}

					return id;
				},

				/**
				 * Get the applied discount from cart on Checkout page.
				 *
				 * @since 2.3.0
				 *
				 * @return {string}
				 */
				getDiscount: function () {

					if ( !$( '.edd_discount_remove' ).length ) {
						return '';
					}

					return $( '.edd_discount_remove' ).attr( 'data-code' );
				},

				/**
				 * Get the user name from registration form on Checkout page.
				 *
				 * @since 1.0.0
				 *
				 * @param {string} type Accepted values: 'username', 'first', 'last', 'full'.
				 *
				 * @return {string}
				 */
				getName: function ( type ) {
					var name = '';

					if ( !$( '#edd_purchase_form' ).length ) {
						return name;
					}

					switch ( type ) {
						case 'username':
							var $username = $( '#edd-user-login' );

							name = $username.length ? $username.val() : '';
							break;

						case 'first':
							var $first = $( '#edd-first' );

							name = $first.length ? $first.val() : '';
							break;

						case 'last':
							var $last = $( '#edd-last' );

							name = $last.length ? $last.val() : '';
							break;

						case 'full':
							name = this.getName( 'first' ) + ' ' + this.getName( 'last' );
							break;
					}

					return $.trim( name );
				},

				/**
				 * Get the abandonment URL from the cart Checkout page.
				 *
				 * @since 2.3.0
				 *
				 * @return {string}
				 */
				getAbandonmentURL: function ( type ) {

					var url = new URL( drip.checkout_url );

					url.searchParams.set( 'nocache', 1 );
					url.searchParams.set( 'edd_action', 'add_to_cart' );
					url.searchParams.set( 'download_id', this.getPlanId() );
					if ( 'upgrade' !== type ) {
						// For the upgrade abandonment we'll add the discount in DRIP.
						url.searchParams.set( 'discount', this.getDiscount() );
					}
					url.searchParams.set( 'cemail', this.getEmail() );
					url.searchParams.set( 'clogin', this.getEmail() );
					url.searchParams.set( 'cfname', this.getName( 'first' ) );
					url.searchParams.set( 'clname', this.getName( 'last' ) );

					return url;
				}
			},

			getCookie: function ( name ) {
				var v = document.cookie.match( '(^|;) ?' + name + '=([^;]*)(;|$)' );
				return v ? v[2] : null;
			},

			setCookie: function ( name, value, days ) {
				var expires = '';
				if ( days ) {
					var date = new Date();
					date.setTime( date.getTime() + (
						days * 24 * 60 * 60 * 1000
					) );
					expires = '; expires=' + date.toUTCString();
				}
				document.cookie = name + '=' + (
					value || ''
				) + expires + '; path=/';
			},

			setCountry: function() {
				if ( Intl ) {
					var userTimeZone = Intl.DateTimeFormat().resolvedOptions().timeZone;
					var tzArr = userTimeZone.split("/");

					if ( tzArr[ tzArr.length - 1 ] ) {
						app.userCity = tzArr[ tzArr.length - 1 ];
						if ( timeZoneCityToCountry[ app.userCity ] ) {
							app.userCountry = timeZoneCityToCountry[ app.userCity ];
						}
					}
				}
			}
		};

		// Provide access to public functions/properties.
		return app;

	}
)( document, window, jQuery );

// Initialize.
Core.Drip.init();