<?php
/**
 * The Emails model for Scan report.
 *
 * @link    https://wordpress.org/plugins/broken-link-checker/
 * @since   2.0.0
 *
 * @author  WPMUDEV (https://wpmudev.com)
 * @package WPMUDEV_BLC\App\Emails\Scan_Report;
 *
 * @copyright (c) 2022, Incsub (http://incsub.com)
 */

namespace WPMUDEV_BLC\App\Emails\Scan_Report;

// Abort if called directly.
use WPMUDEV_BLC\App\Options\Settings\Model as Settings;
use WPMUDEV_BLC\App\Webhooks\Recipient_Activation\Controller as Activation_Webhook;
use WPMUDEV_BLC\Core\Utils\Utilities;

defined( 'WPINC' ) || die;

/**
 * Class Settings
 *
 * @package WPMUDEV_BLC\App\Admin_Pages\Dashboard
 */
class Model {
	/**
	 * The scan results from DB.
	 *
	 * @var array
	 */
	private static $scan_results = array();

	/**
	 * Returns the header logo of the email.
	 *
	 * @return string
	 */
	public static function header_logo() {
		return apply_filters(
			'wpmudev_blc_scan_report_email_header_logo',
			esc_url( WPMUDEV_BLC_ASSETS_URL . 'images/blc-logo-white-28x28.png' )
		);
	}

	/**
	 * Returns the BLC Title to be used in the email header.
	 *
	 * @return string
	 */
	public static function header_title() {
		return apply_filters(
			'wpmudev_blc_scan_report_email_header_title',
			__( 'BLC Report', 'brocken-link-checker' )
		);
	}

	/**
	 * Returns home url.
	 *
	 * @retun string
	 */
	public static function get_hub_home_url() {
		return Utilities::hub_home_url();
	}

	/**
	 * Returns the header logo of the email.
	 *
	 * @return string
	 */
	public static function footer_logo() {
		return apply_filters(
			'wpmudev_blc_scan_report_email_header_logo',
			esc_url( WPMUDEV_BLC_ASSETS_URL . 'images/wpmudev-logo-dark-30x30.png' )
		);
	}

	/**
	 * Returns social links info.
	 *
	 * @return array
	 */
	public static function social_links() {
		return apply_filters(
			'wpmudev_blc_scan_report_email_social_data',
			array(
				'facebook'  => array(
					'icon' => WPMUDEV_BLC_ASSETS_URL . 'images/social/facebook-dark-7x14.png',
					'url'  => 'https://www.facebook.com/wpmudev',
				),
				'instagram' => array(
					'icon' => WPMUDEV_BLC_ASSETS_URL . 'images/social/instagram-dark-14x14.png',
					'url'  => 'https://www.instagram.com/wpmu_dev/',
				),
				'twitter'   => array(
					'icon' => WPMUDEV_BLC_ASSETS_URL . 'images/social/twitter-dark-13x11.png',
					'url'  => 'https://twitter.com/wpmudev/',
				),
			)
		);
	}

	/**
	 * Returns scan date.
	 */
	public static function scan_date() {
		$start_time = self::get_scan_results( 'start_time' );

		if ( ! empty( $start_time ) ) {
			$start_time = Utilities::microtime_to_date( intval( $start_time ), 'full_date', true );
		}

		return apply_filters(
			'wpmudev_blc_scan_report_email_scan_date',
			$start_time
		);
	}

	/**
	 * Returns scan results.
	 *
	 * @param string $key Optional scan results key.
	 */
	public static function get_scan_results( string $key = '' ) {
		if ( empty( self::$scan_results ) ) {
			$scan_results       = array();
			$scan_defaults      = Settings::instance()->default['scan_results'] ?? array();
			self::$scan_results = wp_parse_args( Settings::instance()->get( 'scan_results' ), $scan_defaults );
		}

		if ( ! empty( $key ) ) {
			return self::$scan_results[ $key ] ?? null;
		}

		return self::$scan_results;
	}

	/**
	 * Returns array recipients email address and names.
	 */
	public static function get_recipients() {
		$user_recipients            = array();
		$email_recipients           = Settings::instance()->get_scan_active_email_recipients();
		$schedule                   = Settings::instance()->get( 'schedule' );
		$registered_recipients_data = ! empty( $schedule[ 'registered_recipients_data' ] ) ? $schedule['registered_recipients_data'] : array();

		if ( ! empty( $email_recipients ) ) {
			array_walk(
				$email_recipients,
				function ( &$recipient ) {
					unset( $recipient['confirmed'] );
					$recipient['unsubscribe_link'] = self::unsubscribe_link( base64_encode( md5( $recipient['email'] ) . '_' . $recipient['key'] ) );
				}
			);
		}

		if ( ! empty( $registered_recipients_data ) ) {
			array_walk(
				$registered_recipients_data,
				function ( $user_data, $user_id ) use ( &$user_recipients ) {
					$user_recipients[] = array(
						'name'             => $user_data['name'],
						'email'            => $user_data['email'],
						'key'              => $user_data['key'],
						'unsubscribe_link' => self::unsubscribe_link( base64_encode( md5( $user_data['email'] ) . '_' . $user_data['key'] ) ),
					);
				}
			);
		}

		return array_merge( $user_recipients, $email_recipients );
	}

	private static function unsubscribe_link( string $token = '' ) {
		return add_query_arg(
			array(
				'action'          => 'cancel',
				'activation_code' => sanitize_text_field( $token ),
			),
			Activation_Webhook::instance()->webhook_url()
		);
	}
}