<?php

/**
 * Admin Page class
 */
class Air_WP_Sync_Admin_Page {
	/** @var array List of available importers */
	protected $importers = array();

	protected $display_max_connection = false;

	/**
	 * Constructor
	 */
	public function __construct( $importers ) {
		$this->importers = $importers;

		add_action( 'admin_menu', array( $this, 'add_menu' ), 100 );
		add_filter( 'plugin_action_links_' . AIR_WP_SYNC_BASENAME, array( $this, 'plugin_action_links' ) );
		add_filter( 'manage_airwpsync-connection_posts_columns', array( $this, 'admin_table_columns' ), 10, 1 );
		add_action( 'manage_airwpsync-connection_posts_custom_column', array( $this, 'admin_table_columns_html' ), 10, 2 );
		add_action( 'add_meta_boxes', array( $this, 'add_meta_boxes' ) );
		add_action( 'admin_enqueue_scripts', array( $this, 'register_styles_scripts' ) );
		add_action( 'in_admin_header', array( $this, 'in_admin_header' ) );
		add_action( 'edit_form_top', array( $this, 'add_header' ) );
		add_action( 'dbx_post_sidebar', array( $this, 'add_footer' ) );
		add_action( 'wp_insert_post_data', array( $this, 'wp_insert_post_data' ), 10, 2 );
		add_filter( 'redirect_post_location', array( $this, 'redirect_post_location' ), 10, 2 );
		add_action( 'admin_notices', array( $this, 'admin_notices' ), 10 );
		add_action( 'wp_ajax_air_wp_sync_trigger_update', array( $this, 'trigger_update' ) );
		add_filter( 'post_updated_messages', array( $this, 'post_updated_messages' ) );
		add_action( 'wp_ajax_air_wp_sync_check_airtable_settings', array( $this, 'check_airtable_settings' ) );
	}

	/**
	 * Display plugin header
	 */
	public function in_admin_header() {
		$screen = get_current_screen();
		if ( 'airwpsync-connection' === $screen->post_type ) {
			include_once AIR_WP_SYNC_PLUGIN_DIR . 'views/header.php';
		}
	}

	/**
	 * Output wrapper opening for alpinejs x-data
	 */
	public function add_header( $post ) {
		if ( 'airwpsync-connection' === get_post_type() ) {
			$config = json_decode( $post->post_content, true );
			$json   = $config ? wp_json_encode( $config ) : '{}';
			// Json output is already encoded
			// phpcs:ignore
			echo '<script>window.airwpsyncImporterData = ' . $json . ';</script>';
			echo '<div id="airwpsync-alpine-container" x-data="airWpSyncSettingsHandler">';
			echo '<div id="airwpsync-validation-notice" class="notice notice-error" style="display:none"><p><strong>' . esc_html__( 'Error:', 'airwpsync' ) . '</strong> ' . esc_html__( 'Some required fields are missing.', 'airwpsync' ) . '</p></div>';
		}
	}

	/**
	 * Output wrapper closing for alpinejs x-data
	 */
	public function add_footer() {
		if ( 'airwpsync-connection' === get_post_type() ) {
			echo '</div>';
		}
	}

	/**
	 * Add menu
	 */
	public function add_menu() {
		add_menu_page(
			__( 'Air WP Sync', 'airwpsync' ),
			__( 'Air WP Sync', 'airwpsync' ),
			apply_filters( 'airwpsync/manage_options_capability', 'manage_options' ),
			'edit.php?post_type=airwpsync-connection',
			false,
			'data:image/svg+xml;base64,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'
		);
		add_submenu_page(
			'edit.php?post_type=airwpsync-connection',
			__( 'All Connections', 'airwpsync' ),
			__( 'All Connections', 'airwpsync' ),
			apply_filters( 'airwpsync/manage_options_capability', 'manage_options' ),
			'edit.php?post_type=airwpsync-connection'
		);
		add_submenu_page(
			'edit.php?post_type=airwpsync-connection',
			__( 'Add New', 'airwpsync' ),
			__( 'Add New', 'airwpsync' ),
			apply_filters( 'airwpsync/manage_options_capability', 'manage_options' ),
			'post-new.php?post_type=airwpsync-connection'
		);
	}

	/**
	 * Show action links on the plugin screen
	 */
	public function plugin_action_links( $links ) {
		return array_merge(
			$links,
			array(
				'settings' => '<a href="' . admin_url( 'edit.php?post_type=airwpsync-connection' ) . '">' . esc_html__( 'Settings', 'airwpsync' ) . '</a>',
			)
		);
	}

	/**
	 * Customizes the admin table columns.
	 */
	public function admin_table_columns( $_columns ) {
		$columns = array(
			'cb'            => $_columns['cb'],
			'title'         => $_columns['title'],
			'modified-date' => __( 'Last Modified On', 'airwpsync' ),
			'post-type'     => __( 'Post Type', 'airwpsync' ),
			'sync-date'     => __( 'Last Synced On', 'airwpsync' ),
			'sync-trigger'  => __( 'Trigger', 'airwpsync' ),
		);
		return $columns;
	}

	/**
	 * Renders the admin table column HTML
	 *
	 * @param   string $column_name The name of the column to display.
	 * @param   int    $post_id The current post ID.
	 * @return  void
	 */
	public function admin_table_columns_html( $column_name, $post_id ) {
		$importer = $this->get_importer_by_id( $post_id );
		if ( ! $importer ) {
			return;
		}
		switch ( $column_name ) {
			case 'post-type':
				$post_type        = $importer->config()->get( 'post_type' );
				$post_type_object = get_post_type_object( $post_type );
				if ( $post_type_object ) {
					echo '<span class="dashicons ' . esc_attr( $post_type_object->menu_icon ) . '"></span> ';
					echo esc_html( $post_type_object->labels->name );
				}
				break;
			case 'sync-trigger':
				if ( 'manual' === $importer->config()->get( 'scheduled_sync.type' ) ) {
					esc_html_e( 'Manual only', 'airwpsync' );
				}
				if ( 'cron' === $importer->config()->get( 'scheduled_sync.type' ) ) {
					esc_html_e( 'Recurring', 'airwpsync' );
					if ( $importer->config()->get( 'scheduled_sync.recurrence' ) ) {
						$schedules = wp_get_schedules();
						foreach ( $schedules as $slug => $schedule ) {
							if ( $slug === $importer->config()->get( 'scheduled_sync.recurrence' ) ) {
								echo esc_html( ' (' . $schedule['display'] . ')' );
							}
						}
					}
				}
				break;
			case 'sync-date':
				$last_updated = get_post_meta( $post_id, 'last_updated', true );
				echo esc_html( $last_updated ? Air_WP_Sync_Helpers::get_formatted_date_time( $last_updated ) : '--' );
				break;
			case 'modified-date':
				$last_modified = $importer->infos()->get( 'modified' );
				echo esc_html( $last_modified ? Air_WP_Sync_Helpers::get_formatted_date_time( $last_modified ) : '--' );
				break;
		}
	}

	/**
	 * Add metaboxes for importer post type
	 */
	public function add_meta_boxes() {
		// Settings
		add_meta_box(
			'air-wp-sync-global-settings',
			__( 'Airtable Settings', 'airwpsync' ),
			array( $this, 'display_airtable_settings_metabox' ),
			'airwpsync-connection',
			'normal',
			'high'
		);
		// Post Settings
		add_meta_box(
			'air-wp-sync-post-settings',
			__( 'Import As...', 'airwpsync' ),
			array( $this, 'display_post_settings_metabox' ),
			'airwpsync-connection',
			'normal',
			'high'
		);
		// Mapping
		$tooltip_html = '<span class="airwpsync-tooltip" aria-label="' . esc_attr__( 'Add all the Airtable fields you want to synchronize and then select the corresponding data types where they will be imported into your post. Make sure the column names are entered identically into your database', 'airwpsync' ) . '">?</span>';
		add_meta_box(
			'air-wp-sync-mapping',
			__( 'Field Mapping', 'airwpsync' ) . $tooltip_html,
			array( $this, 'display_mapping_metabox' ),
			'airwpsync-connection',
			'normal',
			'high'
		);
		// Import Infos
		add_meta_box(
			'air-wp-sync-infos',
			__( 'Actions', 'airwpsync' ),
			array( $this, 'display_side_metabox' ),
			'airwpsync-connection',
			'side'
		);
		// Sync Settings
		add_meta_box(
			'air-wp-sync-sync-settings',
			__( 'Sync Settings', 'airwpsync' ),
			array( $this, 'display_sync_metabox' ),
			'airwpsync-connection',
			'normal'
		);
	}

	/**
	 * Output global settings metabox HTML
	 */
	public function display_airtable_settings_metabox( $post ) {
		include_once AIR_WP_SYNC_PLUGIN_DIR . 'views/metabox-airtable-settings.php';
	}

	/**
	 * Output mapping metabox HTML
	 */
	public function display_mapping_metabox( $post ) {
		$wp_fields = apply_filters( 'airwpsync/get_wp_fields', array() );
		include_once AIR_WP_SYNC_PLUGIN_DIR . 'views/metabox-mapping.php';
	}

	/**
	 * Output post settings metabox HTML
	 */
	public function display_post_settings_metabox( $post ) {
		$post_types   = $this->get_post_types();
		$post_stati   = $this->get_post_stati();
		$post_authors = $this->get_post_authors();
		include_once AIR_WP_SYNC_PLUGIN_DIR . 'views/metabox-post-settings.php';
	}

	/**
	 * Output side metabox HTML
	 */
	public function display_side_metabox( $post ) {
		$importer = $this->get_importer_by_id( $post->ID );
		include_once AIR_WP_SYNC_PLUGIN_DIR . 'views/metabox-side.php';
	}

	/**
	 * Output sync metabox HTML
	 */
	public function display_sync_metabox( $post ) {
		$sync_strategies = $this->get_sync_strategies();
		$schedules       = $this->get_schedules();
		include_once AIR_WP_SYNC_PLUGIN_DIR . 'views/metabox-sync.php';
	}

	/**
	 * Register admin styles and scripts
	 */
	public function register_styles_scripts() {
		wp_enqueue_style( 'air-wp-sync-admin', plugins_url( 'assets/css/admin-page.css', __DIR__ ), false, AIR_WP_SYNC_VERSION );

		$screen = get_current_screen();
		if ( is_object( $screen ) && 'airwpsync-connection' === $screen->id ) {
			wp_enqueue_script( 'air-wp-sync-alpine', plugins_url( 'assets/js/alpinejs@3.10.2.min.js', __DIR__ ), false, AIR_WP_SYNC_VERSION, false );
			wp_enqueue_script( 'air-wp-sync-admin', plugins_url( 'assets/js/admin-page.js', __DIR__ ), array( 'air-wp-sync-alpine' ), AIR_WP_SYNC_VERSION, false );
		}
	}

	/**
	 * Save post
	 */
	public function wp_insert_post_data( $data, $postarr ) {
		if ( 'airwpsync-connection' !== $postarr['post_type'] ) {
			return $data;
		}

		$post_id = $postarr['ID'] ?? 0;

		// Limit active importers
		if ( ! isset( $data['post_status'] ) || $data['post_status'] === 'publish' ) {
			$importers = get_posts(
				array(
					'post_type'      => 'airwpsync-connection',
					'post_status'    => 'publish',
					'posts_per_page' => -1,
					'post__not_in'   => array( $post_id ),
				)
			);
			if ( count( $importers ) > 0 ) {
				$data['post_status']          = 'draft';
				$this->display_max_connection = true;
			}
		}

		// Update slug
		if ( array_key_exists( 'post_title', $data ) ) {
			$data['post_name'] = sanitize_title( $data['post_title'] );
		}

		// Clear schedule
		if ( ! empty( $post_id ) ) {
			wp_clear_scheduled_hook( 'air_wp_sync_importer_' . $post_id );
		}
		return $data;
	}

	public function redirect_post_location( $location, $post_id ) {
		if ( $this->display_max_connection ) {
			$location = add_query_arg( 'display_max_connection', 1, $location );
		}
		return $location;
	}


	public function admin_notices() {
		// phpcs:ignore
		if ( ! empty( $_GET['display_max_connection'] ) && '1' === $_GET['display_max_connection'] ) {
			printf(
				'<div class="%1$s"><p>%2$s</p></div>',
				esc_attr( 'notice notice-error' ),
				wp_kses(
					__( 'Thank you for using the free version of our plugin! To be able to create as many connections as you want, <a href="https://wpconnect.co/air-wp-sync-plugin/#pro-version" target="_blank">upgrade to Pro version</a>.', 'airwpsync' ),
					array(
						'a' => array(
							'href'   => array(),
							'target' => array(),
						),
					)
				)
			);
		}
	}

	/**
	 * Add back link to message when connection is updated.
	 */
	public function post_updated_messages( $messages ) {
		$back_link_html       = sprintf(
			' <a href="%1$s">%2$s</a>',
			esc_url( admin_url( 'edit.php?post_type=airwpsync-connection' ) ),
			__( 'Back to list', 'airwpsync' )
		);
		$messages['post'][1] .= $back_link_html;
		return $messages;
	}

	/**
	 * Manual sync AJAX function
	 */
	public function trigger_update() {
		// AJAX check
		if ( ( empty( $_SERVER['HTTP_X_REQUESTED_WITH'] ) && strtolower( $_SERVER['HTTP_X_REQUESTED_WITH'] ) === 'xmlhttprequest' ) ) {
			wp_die();
		}
		// Nonce check
		check_ajax_referer( 'air-wp-sync-trigger-update', 'nonce' );

		$importer_id = (int) $_POST['importer'] ?? 0;
		$nonce       = wp_create_nonce( 'air-wp-sync-trigger-update' );

		try {
			$importer = $this->get_importer_by_id( $importer_id );
			if ( ! $importer ) {
				throw new Exception( 'No connection found.' );
			}

			$result = $importer->run();
			if ( is_wp_error( $result ) ) {
				throw new Exception( $result->get_error_message() );
			}
			wp_send_json_success(
				array(
					'nonce'     => $nonce,
					'infosHtml' => $this->get_stats_html( $importer_id ),
					'feedback'  => __( 'Finished!', 'airwpsync' ),
				)
			);
		} catch ( Exception $e ) {
			wp_send_json_error(
				array(
					'nonce'     => $nonce,
					'infosHtml' => $this->get_stats_html( $importer_id, $e->getMessage() ),
					'feedback'  => __( 'Finished with errors.', 'airwpsync' ),
				)
			);
		}
	}

	public function check_airtable_settings() {
		// AJAX check
		if ( empty( $_SERVER['HTTP_X_REQUESTED_WITH'] ) && strtolower( $_SERVER['HTTP_X_REQUESTED_WITH'] ) === 'xmlhttprequest' ) {
			wp_die();
		}
		// Data check
		if ( empty( $_POST['apiKey'] ) || empty( $_POST['appId'] ) || empty( $_POST['table'] ) ) {
			wp_die();
		}
		// Nonce check
		check_ajax_referer( 'air-wp-sync-check-airtable-settings', 'nonce' );

		// Get data
		$api_key = sanitize_text_field( $_POST['apiKey'] );
		$app_id  = sanitize_text_field( $_POST['appId'] );
		$table   = sanitize_text_field( $_POST['table'] );

		$nonce = wp_create_nonce( 'air-wp-sync-check-airtable-settings' );

		try {
			$client = new Air_WP_Sync_Airtable_Api_Client( $app_id, $api_key );
			$client->list( $table );

			wp_send_json_success(
				array(
					'nonce'    => $nonce,
					'feedback' => __( 'Finished!', 'airwpsync' ),
				)
			);
		} catch ( Exception $e ) {
			$response = array(
				'nonce' => $nonce,
			);

			if ( strpos( $e->getMessage(), 'Could not find table' ) > -1 || strpos( $e->getMessage(), 'NOT_FOUND' ) > -1 ) {
				$response['fields']  = array( 'appId', 'table' );
				$response['message'] = $e->getMessage();
			}
			if ( strpos( $e->getMessage(), 'Authentication required' ) > -1 ) {
				$response['fields']  = array( 'apiKey' );
				$response['message'] = __( 'Wrong API Key', 'airwpsync' );
			}
			wp_send_json_error( $response );
		}
	}

	/**
	 * Get importer instance from id
	 */
	protected function get_importer_by_id( $id ) {
		return array_reduce(
			$this->importers,
			function( $result, $importer ) use ( $id ) {
				return $importer->infos()->get( 'id' ) === (int) $id ? $importer : $result;
			},
			false
		);
	}

	/**
	 * Get importer statistics html
	 */
	protected function get_stats_html( $importer_id, $last_error = null ) {
		ob_start();
		$status       = $importer_id ? get_post_meta( $importer_id, 'status', true ) : '';
		$last_updated = $importer_id ? get_post_meta( $importer_id, 'last_updated', true ) : '';
		$next_sync    = $importer_id ? wp_next_scheduled( 'air_wp_sync_importer_' . $importer_id ) : '';
		$last_error   = $last_error ? $last_error : ( $importer_id ? get_post_meta( $importer_id, 'last_error', true ) : '' );
		include AIR_WP_SYNC_PLUGIN_DIR . 'views/metabox-side/infos.php';
		return ob_get_clean();
	}

	/**
	 * Get available post types
	 */
	protected function get_post_types() {
		$excluded   = array( 'attachment' );
		$enabled    = array( 'page', 'post' );
		$post_types = array();

		$wp_post_types = get_post_types(
			array(
				'public' => true,
			),
			'objects'
		);

		foreach ( $wp_post_types as $wp_post_type ) {
			if ( ! in_array( $wp_post_type->name, $excluded, true ) ) {
				$post_types[] = array(
					'value'   => $wp_post_type->name,
					'label'   => $wp_post_type->labels->singular_name . ( ! in_array( $wp_post_type->name, $enabled, true ) ? ' ' . __( '(Pro version, coming soon)', 'airwpsync' ) : '' ),
					'enabled' => in_array( $wp_post_type->name, $enabled, true ),
				);
			}
		}

		$post_types[] = array(
			'value'   => 'custom',
			'label'   => __( 'Custom Post Type (Pro version, coming soon)', 'airwpsync' ),
			'enabled' => false,
		);

		return apply_filters( 'airwpsync/get_post_types', $post_types );
	}

	/**
	 * Get post stati
	 */
	protected function get_post_stati() {
		$whitelist     = array( 'publish', 'future', 'draft', 'pending', 'trash', 'private' );
		$post_stati    = array();
		$wp_post_stati = get_post_stati(
			array( 'internal' => false ),
			'objects'
		);

		foreach ( $wp_post_stati as $wp_post_status ) {
			$enabled      = in_array( $wp_post_status->name, $whitelist, true );
			$post_stati[] = array(
				'value'   => $wp_post_status->name,
				'label'   => $wp_post_status->label . ( ! $enabled ? ' ' . __( '(Pro version, coming soon)', 'airwpsync' ) : '' ),
				'enabled' => $enabled,
			);
		}
		return apply_filters( 'airwpsync/get_post_stati', $post_stati );
	}

	/**
	 * Get post authors
	 */
	protected function get_post_authors() {
		$authors    = array();
		$wp_authors = get_users( array( 'role__in' => array( 'administrator', 'editor', 'author', 'contributor' ) ) );
		foreach ( $wp_authors as $wp_author ) {
			$authors[] = array(
				'value'   => $wp_author->ID,
				'label'   => $wp_author->display_name,
				'enabled' => true,
			);
		}
		return apply_filters( 'airwpsync/get_post_authors', $authors );
	}

	/**
	 * Get sync strategies
	 */
	protected function get_sync_strategies() {
		return array(
			'add'               => __( 'Add', 'airwpsync' ),
			'add_update'        => __( 'Add & Update', 'airwpsync' ),
			'add_update_delete' => __( 'Add, Update & Delete', 'airwpsync' ),
		);
	}

	/**
	 * Get schedules
	 */
	protected function get_schedules() {
		$whitelist = array( 'hourly', 'twicedaily', 'daily', 'weekly' );
		$schedules = array();

		foreach ( wp_get_schedules() as $key => $schedule ) {
			if ( in_array( $key, $whitelist, true ) || strpos( $key, 'airwpsync_' ) === 0 ) {
				$enabled                            = $schedule['interval'] >= DAY_IN_SECONDS;
				$schedules[ $schedule['interval'] ] = array(
					'value'   => $key,
					'label'   => $schedule['display'] . ( ! $enabled ? ' ' . __( '(Pro version, coming soon)', 'airwpsync' ) : '' ),
					'enabled' => $enabled,
				);
			}
		}
		ksort( $schedules );
		return array_reverse( $schedules );
	}
}