<?php

namespace QuadLayers\IGG;

use QuadLayers\IGG\Backend\Load as Backend;
use QuadLayers\IGG\Frontend\Load as Frontend;
use QuadLayers\IGG\Gutenberg\Load as Gutenberg;
use QuadLayers\IGG\Models\Account as Models_Account;
use QuadLayers\IGG\Models\Setting as Models_Setting;

final class Plugin {

	protected static $instance;

	private function __construct() {
		/**
		 * Load plugin textdomain.
		 */
		load_plugin_textdomain( 'insta-gallery', false, QLIGG_PLUGIN_DIR . '/languages/' );
		/**
		 * Load api classes.
		 */
		Api\Rest\Routes_Library::instance();
		/**
		 * Load plugin classes.ß
		 */
		Backend::instance();
		Frontend::instance();
		Gutenberg::instance();

		do_action( 'qligg_init' );

		// Filter to add 50 days interval to cron_schedules
		add_filter(
			'cron_schedules',
			function() {
				$schedules['fifty_days'] = array(
					'interval' => DAY_IN_SECONDS * 50,
					'display'  => esc_html__( 'Every fifty days', 'insta-gallery' ),
				);
				return $schedules;
			}
		);

		// Action to auto renew account access_token, if it can be done automatically. Send an email to inform admin about access_token expiration.
		add_action(
			'qligg_cron_account',
			function( $id ) {
				$models_account      = new Models_Account();
				$account             = $models_account->get_account( $id );
				$old_expiration_date = $account['access_token_expiration_date'];

				$account_renewed = $models_account->renew_access_token( $account['access_token'] );

				$new_expiration = strtotime( current_time( 'mysql' ) ) + $account_renewed['expires_in'];

				$admin_email = $this->get_admin_email();

				if ( $old_expiration_date >= $new_expiration ) {
					$message = esc_html__( 'Hi! We would like to inform you that the business account token that you are using in Quadlayers - Social Feed Gallery is going to expire.', 'insta-gallery' );
					$subject = esc_html__( 'Your business account is going to expire', 'insta-gallery' );
					wp_mail( $admin_email, $subject, $message );
				}

				if ( ! isset( $account_renewed['access_token'] ) ) {
					$message = esc_html__( 'Hi! We would like to inform you that the business account token that you are using in Quadlayers - Social Feed Gallery is going to expire. Please sing in again to keep the plugin working. ', 'insta-gallery' );
					$subject = esc_html__( 'Your business account is going to expire', 'insta-gallery' );
					wp_mail( $admin_email, $subject, $message );
				}
			},
			10,
			1
		);
	}

	protected function get_admin_email() {
		$models_setting = new Models_Setting();
		$user_settings  = $models_setting->get();
		if ( isset( $user_settings['mail_to_alert'] ) ) {
			return $user_settings['mail_to_alert'];
		}
		if ( function_exists( 'is_multisite' ) && is_multisite() ) {
			return get_site_option( 'admin_email' );
		}
		return get_option( 'admin_email' );
	}

	public static function instance() {
		if ( is_null( self::$instance ) ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

}

Plugin::instance();