<?php
/**
 * Intercepte les erreurs de validation Pods lors du save d'un post admin :
 * - Empêche wp_die() (qui publiait quand même le post sans les champs Pods)
 * - Annule le changement de statut si le post n'était pas encore publié
 * - Redirige vers la page d'édition avec les champs restaurés via transient
 */

// Capture l'ID du post en cours de sauvegarde (avant Pods, qui peut le créer pour les nouveaux posts)
add_action( 'save_post', function ( $post_id ) {
	if ( wp_is_post_autosave( $post_id ) || wp_is_post_revision( $post_id ) ) {
		return;
	}
	$GLOBALS['thalim_saving_post_id'] = $post_id;
}, 1 );

// Intercepte wp_die() de Pods pendant un save admin
add_filter( 'pods_error_die', function ( $die, $error ) {
	if ( ! is_admin() || ! isset( $_REQUEST['action'] ) || $_REQUEST['action'] !== 'editpost' ) {
		return $die;
	}

	$post_id = $GLOBALS['thalim_saving_post_id'] ?? intval( $_POST['post_ID'] ?? 0 );
	if ( ! $post_id ) {
		return $die;
	}

	$user_id = get_current_user_id();

	// Collecter les valeurs Pods soumises
	$restore = [];
	foreach ( $_POST as $key => $val ) {
		if ( str_starts_with( $key, 'pods_meta_' ) ) {
			$restore[ $key ] = is_array( $val ) ? array_map( 'wp_unslash', $val ) : wp_unslash( $val );
		}
	}
	$error_text       = is_wp_error( $error ) ? $error->get_error_message() : (string) $error;
	$restore['_msg']  = wp_strip_all_tags( $error_text );
	$restore['_title'] = sanitize_text_field( wp_unslash( $_POST['post_title'] ?? '' ) );

	set_transient( 'thalim_pods_restore_' . $post_id . '_' . $user_id, $restore, 10 * MINUTE_IN_SECONDS );

	$GLOBALS['thalim_pods_error_post_id'] = $post_id;

	return false; // empêche wp_die()
}, 10, 2 );

// Après le save : rediriger vers la page d'édition + annuler le statut si besoin
add_filter( 'redirect_post_location', function ( $location ) {
	$post_id = $GLOBALS['thalim_pods_error_post_id'] ?? 0;
	if ( ! $post_id ) {
		return $location;
	}

	// Annuler le changement de statut vers publish si le post n'était pas encore publié
	$original = isset( $_POST['original_post_status'] ) ? sanitize_key( $_POST['original_post_status'] ) : '';
	$post     = get_post( $post_id );

	if (
		$post &&
		in_array( $post->post_status, [ 'publish', 'future', 'pending' ], true ) &&
		! in_array( $original, [ 'publish', 'future', 'pending' ], true )
	) {
		global $wpdb;
		$wpdb->update(
			$wpdb->posts,
			[ 'post_status' => $original ?: 'draft' ],
			[ 'ID' => $post_id ],
			[ '%s' ],
			[ '%d' ]
		);
		clean_post_cache( $post_id );
	}

	return admin_url( 'post.php?post=' . $post_id . '&action=edit' );
}, 10 );

// Sur la page d'édition (GET) : lire le transient une seule fois → global → supprimer
add_action( 'current_screen', function ( $screen ) {
	if ( $screen->base !== 'post' ) {
		return;
	}
	$post_id = isset( $_GET['post'] ) ? intval( $_GET['post'] ) : 0;
	if ( ! $post_id ) {
		return;
	}

	$user_id = get_current_user_id();
	$key     = 'thalim_pods_restore_' . $post_id . '_' . $user_id;
	$data    = get_transient( $key );
	if ( ! $data ) {
		return;
	}

	$GLOBALS['thalim_pods_restore'] = [
		'post_id' => $post_id,
		'data'    => $data,
	];
	delete_transient( $key );
} );

// Injecter les valeurs dans get_post_meta → Pods DFV les embarque dans son JSON React
add_filter( 'get_post_metadata', function ( $value, $object_id, $meta_key, $single ) {
	$restore = $GLOBALS['thalim_pods_restore'] ?? null;
	if ( ! $restore || $restore['post_id'] !== (int) $object_id ) {
		return $value;
	}

	$pods_key = 'pods_meta_' . $meta_key;
	if ( ! isset( $restore['data'][ $pods_key ] ) ) {
		return $value;
	}

	$val = $restore['data'][ $pods_key ];
	return $single ? $val : [ $val ];
}, 10, 4 );

// Restauration JS : titre + champs Pods select/pick via PodsDFV (même pattern que les modales)
add_action( 'admin_footer', function () {
	$restore = $GLOBALS['thalim_pods_restore'] ?? null;
	if ( ! $restore ) {
		return;
	}

	$screen = get_current_screen();
	if ( ! $screen || $screen->base !== 'post' ) {
		return;
	}

	$post_id = intval( $restore['post_id'] );
	$title   = $restore['data']['_title'] ?? '';

	// Construire le map fieldName => value pour les champs Pods
	$fields = [];
	foreach ( $restore['data'] as $key => $val ) {
		if ( str_starts_with( $key, 'pods_meta_' ) ) {
			$fields[ substr( $key, 10 ) ] = $val;
		}
	}

	?>
	<script>
	(function ($) {
		var postId = <?php echo $post_id; ?>;
		var fields = <?php echo wp_json_encode( $fields ); ?>;
		var title  = <?php echo wp_json_encode( $title ); ?>;

		function doRestore() {
			// Titre WordPress (non géré par get_post_metadata)
			var $titleInput = $('#title');
			if ($titleInput.length && !$titleInput.val() && title) {
				$titleInput.val(title).trigger('input');
			}

			// Champs Pods : DOM direct + PodsDFV pour les selects/picks
			Object.keys(fields).forEach(function (fieldName) {
				var value = fields[fieldName];
				var $el = $('[name="pods_meta_' + fieldName + '"]');
				if ($el.length) {
					$el.val(value).trigger('change');
				}
				if (window.PodsDFV && postId) {
					try {
						window.PodsDFV.setFieldValue('post', postId, fieldName, value, 0);
					} catch (e) {}
				}
			});
		}

		$(window).on('load', function () {
			setTimeout(doRestore, 300);
		});
	}(jQuery));
	</script>
	<?php
} );

// Afficher le message d'erreur en admin notice
add_action( 'admin_notices', function () {
	$restore = $GLOBALS['thalim_pods_restore'] ?? null;
	if ( ! $restore ) {
		return;
	}

	$screen = get_current_screen();
	if ( ! $screen || $screen->base !== 'post' ) {
		return;
	}

	$msg = esc_html( $restore['data']['_msg'] ?? '' );
	if ( $msg ) {
		echo '<div class="notice notice-error is-dismissible"><p>' . $msg . '</p></div>';
	}
	echo '<div class="notice notice-info is-dismissible"><p>Votre contenu a &eacute;t&eacute; restaur&eacute;. V&eacute;rifiez les champs obligatoires avant de republier.</p></div>';
} );