<?php
/**
 * Plugin Name:     Easy Digital Downloads - Email Reports
 * Plugin URI:      http://easydigitaldownloads.com/extension/email-reports
 * Description:     Sends a beautiful, comprehensive sales performance report once a day to the store admin.
 * Version:         1.0.6
 * Author:          Sandhills Development, LLC
 * Author URI:      https://sandhillsdev.com
 * Text Domain:     edd-email-reports
 *
 * @package         EDD\EmailReports
 * @author          Sandhills Development, LLC
 * @copyright       Copyright (c) 2021
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

if ( ! class_exists( 'EDD_Email_Reports' ) ) {

	/**
	 * Main EDD_Email_Reports class
	 *
	 * @since       1.0.0
	 */
	class EDD_Email_Reports {

		/**
		 * The one true instance of the EDD_Email_Reports class.
		 *
		 * @var         EDD_Email_Reports $instance The one true EDD_Email_Reports
		 * @since       1.0.0
		 */
		private static $instance;

		/**
		 * Get active instance
		 *
		 * @access      public
		 * @return      EDD_Email_Reports self::$instance The one true EDD_Email_Reports
		 * @since       1.0.0
		 */
		public static function instance() {
			if ( ! self::$instance ) {
				self::$instance = new EDD_Email_Reports();
				self::$instance->setup_constants();
				self::$instance->includes();
				self::$instance->load_textdomain();
				self::$instance->hooks();
			}

			return self::$instance;
		}

		/**
		 * Setup plugin constants
		 *
		 * @access      private
		 * @return      void
		 * @since       1.0.0
		 */
		private function setup_constants() {
			// Plugin version.
			define( 'EDD_EMAIL_REPORTS_VER', '1.0.6' );

			// Plugin path.
			define( 'EDD_EMAIL_REPORTS_DIR', plugin_dir_path( __FILE__ ) );

			// Plugin URL.
			define( 'EDD_EMAIL_REPORTS_URL', plugin_dir_url( __FILE__ ) );
		}

		/**
		 * Include necessary files
		 *
		 * @access      private
		 * @return      void
		 * @since       1.0.0
		 */
		private function includes() {
			require_once EDD_EMAIL_REPORTS_DIR . 'includes/functions.php';
		}

		/**
		 * Run action and filter hooks
		 *
		 * @access      private
		 * @return      void
		 * @since       1.0.0
		 */
		private function hooks() {
			// Register settings.
			add_filter( 'edd_settings_emails', array( $this, 'settings' ), 1 );
			add_action( 'edd_email_reports_settings', array( $this, 'edd_email_reports_add_email_report_preview' ) );

			// Render the email report preview.
			add_action( 'template_redirect', array( $this, 'edd_email_reports_display_email_report_preview' ) );
			add_filter( 'edd_template_paths', array( $this, 'add_template_paths' ) );
			add_filter( 'edd_email_templates', array( $this, 'add_email_report_template' ) );
			add_filter( 'edd_email_content_type', array( $this, 'change_email_content_type' ), 10, 2 );

			add_filter( 'edd_email_tags', 'edd_email_reports_add_email_tags' );
			add_filter( 'edd_email_message', 'edd_email_reports_render_email', 10, 2 );

			add_filter( 'edd_settings_sanitize', array( $this, 'sanitize_settings' ), 10, 2 );

			// Schedule cron event for daily email.
			add_action( 'wp', array( $this, 'schedule_daily_email' ) );

			// Remove from cron if plugin is deactivated.
			register_deactivation_hook( __FILE__, array( $this, 'unschedule_daily_email' ) );

			// Send the daily email when the cron event triggers the store action.
			add_action( 'edd_email_reports_daily_email', 'edd_email_reports_send_daily_email' );

			// Handle licensing.
			if ( class_exists( 'EDD_License' ) ) {
				$license = new EDD_License( __FILE__, 'EDD Email Reports', EDD_EMAIL_REPORTS_VER, 'Easy Digital Downloads' );
				unset( $license );
			}
		}

		/**
		 * Sanitize the values for the edd_email_reports settings
		 *
		 * @param  mixed  $value The setting value.
		 * @param  string $key   The setting key.
		 *
		 * @return mixed        The sanitized setting value.
		 */
		public function sanitize_settings( $value, $key ) {
			if ( 'edd_email_reports_daily_email_delivery_time' === $key ) {
				global $edd_options;

				if ( $edd_options['edd_email_reports_daily_email_delivery_time'] != $value ) {
					wp_clear_scheduled_hook( 'edd_email_reports_daily_email' );
				}

				return intval( $value );
			}

			return $value;
		}

		/**
		 * Un-schedule the cron job for the daily email if plugin deactivated.
		 *
		 */
		public function unschedule_daily_email() {
			return wp_clear_scheduled_hook( 'edd_email_reports_daily_email' );
		}

		/**
		 * Schedule the daily email report in cron.
		 *
		 * Pass the selected setting in the EDD settings panel, but default to 18:00 local time
		 */
		public function schedule_daily_email() {
			if ( ! wp_next_scheduled( 'edd_email_reports_daily_email' ) && ! defined( 'EDD_DISABLE_EMAIL_REPORTS' ) ) {

				$timezone         = get_option( 'timezone_string' );
				$timezone_string  = ! empty( $timezone ) ? $timezone : 'UTC';
				$target_time_zone = new DateTimeZone( $timezone_string );
				$date_time        = new DateTime( 'now', $target_time_zone );

				wp_schedule_event(
					strtotime( edd_get_option( 'edd_email_reports_daily_email_delivery_time', 1800 ) . 'GMT' . $date_time->format( 'P' ), current_time( 'timestamp' ) ),
					'daily',
					'edd_email_reports_daily_email'
				);
			}
		}

		/**
		 * Internationalization
		 *
		 * @access      public
		 * @return      void
		 * @since       1.0.0
		 */
		public function load_textdomain() {
			// Set filter for language directory.
			$lang_dir = EDD_EMAIL_REPORTS_DIR . '/languages/';
			$lang_dir = apply_filters( 'edd_email_reports_languages_directory', $lang_dir );

			// Traditional WordPress plugin locale filter.
			$locale = apply_filters( 'plugin_locale', get_locale(), 'edd-email-reports' );
			$mofile = sprintf( '%1$s-%2$s.mo', 'edd-email-reports', $locale );

			// Setup paths to current locale file.
			$mofile_local  = $lang_dir . $mofile;
			$mofile_global = WP_LANG_DIR . '/edd-email-reports/' . $mofile;

			if ( file_exists( $mofile_global ) ) {
				// Look in global /wp-content/languages/edd-email-reports/ folder.
				load_textdomain( 'edd-email-reports', $mofile_global );
			} elseif ( file_exists( $mofile_local ) ) {
				// Look in local /wp-content/plugins/edd-email-reports/languages/ folder.
				load_textdomain( 'edd-email-reports', $mofile_local );
			} else {
				// Load the default language files.
				load_plugin_textdomain( 'edd-email-reports', false, $lang_dir );
			}
		}

		/**
		 * Add the custom template path for the email reporting templates.
		 *
		 * @param array $file_paths priority-based paths to check for templates.
		 *
		 * @return array The file paths for templates.
		 */
		public function add_template_paths( $file_paths ) {
			$file_paths[20] = trailingslashit( plugin_dir_path( __FILE__ ) ) . 'templates/';

			return $file_paths;
		}

		/**
		 * Registers the email reports templates.
		 *
		 * @param array $templates The reports templates.
		 *
		 * @return array The registered templates.
		 */
		public function add_email_report_template( $templates ) {
			$templates['report'] = __( 'Email Report Template', 'edd' );

			return $templates;
		}

		/**
		 * Changes the email content type.
		 *
		 * @param string     $content_type The current email content type.
		 * @param EDD_Emails $klass        The instantiated email class.
		 *
		 * @return string The email content type of `text/html`
		 */
		public function change_email_content_type( $content_type, $klass ) {
			return 'text/html';
		}

		/**
		 * Add settings
		 *
		 * @access      public
		 *
		 * @param array $settings The existing EDD settings array.
		 *
		 * @return      array The modified EDD settings array
		 * @since       1.0.0
		 */
		public function settings( $settings ) {
			$new_settings = array(
				array(
					'id'   => 'edd_email_reports_settings',
					'name' => '<strong>' . __( 'Email Reports Settings', 'edd-email-reports' ) . '</strong>',
					'desc' => __( 'Configure EDD Email Reports Settings', 'edd-email-reports' ),
					'type' => 'header',
				),
				array(
					'id'      => 'edd_email_reports_daily_email_delivery_time',
					'name'    => __( 'Daily Email Delivery Time', 'edd' ),
					'desc'    => __( 'Select when you would like to receive your daily email report.', 'edd' ),
					'type'    => 'select',
					'options' => array(
						'1300' => __( '1:00 PM', 'edd' ),
						'1400' => __( '2:00 PM', 'edd' ),
						'1500' => __( '3:00 PM', 'edd' ),
						'1600' => __( '4:00 PM', 'edd' ),
						'1700' => __( '5:00 PM', 'edd' ),
						'1800' => __( '6:00 PM', 'edd' ),
						'1900' => __( '7:00 PM', 'edd' ),
						'2000' => __( '8:00 PM', 'edd' ),
						'2100' => __( '9:00 PM', 'edd' ),
						'2200' => __( '10:00 PM', 'edd' ),
						'2300' => __( '11:00 PM', 'edd' ),
					),
				),
				array(
					'id'   => 'email_reports_settings',
					'name' => '',
					'desc' => '',
					'type' => 'hook',
				),
			);

			return array_merge( $settings, $new_settings );
		}

		/**
		 * Adds a preview of the email report.
		 */
		public function edd_email_reports_add_email_report_preview() {
			ob_start();
			?>
			<a href="<?php echo esc_url( add_query_arg( array( 'edd_action' => 'preview_email_report' ), home_url() ) ); ?>" class="button-secondary" target="_blank" title="<?php _e( 'Preview Email Report', 'edd' ); ?> "><?php _e( 'Preview Email Report', 'edd' ); ?></a>
			<?php
			echo ob_get_clean();
		}

		/**
		 * Displays the email preview
		 *
		 * @return void
		 * @since 2.1
		 */
		public function edd_email_reports_display_email_report_preview() {

			if ( empty( $_GET['edd_action'] ) ) {
				return;
			}

			if ( 'preview_email_report' !== $_GET['edd_action'] ) {
				return;
			}

			if ( ! current_user_can( 'manage_shop_settings' ) ) {
				return;
			}

			// $message will be rendered during edd_email_message filter
			$message = '';

			// Swap out the email template before we send the email.
			add_action( 'edd_email_header', 'edd_email_reports_change_email_template' );

			EDD()->emails->html    = true;
			EDD()->emails->heading = sprintf( __( 'Daily Sales Report – %1$s', 'edd-email-reports' ), get_bloginfo( 'name' ) );

			echo EDD()->emails->build_email( $message );

			exit;

		}

	}
}

/**
 * The main function responsible for returning the one true EDD_Email_Reports
 * instance to functions everywhere
 *
 * @return      \EDD_Email_Reports The one true EDD_Email_Reports
 *
 * @since       1.0.0
 * @todo        Inclusion of the activation code below isn't mandatory, but
 *              can prevent any number of errors, including fatal errors, in
 *              situations where your extension is activated but EDD is not
 *              present.
 */
function EDD_Email_Reports_load() {
	if ( ! class_exists( 'Easy_Digital_Downloads' ) ) {
		if ( ! class_exists( 'EDD_Extension_Activation' ) ) {
			require_once 'includes/class.extension-activation.php';
		}

		$activation = new EDD_Extension_Activation( plugin_dir_path( __FILE__ ), basename( __FILE__ ) );
		$activation = $activation->run();
		unset( $activation );
	} else {
		return EDD_Email_Reports::instance();
	}
}

add_action( 'plugins_loaded', 'EDD_Email_Reports_load' );