<?php
/**
 * WordPress.com helper for Edit Flow.
 *
 * Ensures Edit Flow is instantiated and provides necessary
 * capability filters and fixes for the WordPress.com environment.
 *
 * @package EditFlow
 */

// Ensure Edit Flow is instantiated.
add_action( 'after_setup_theme', 'EditFlow' );

/**
 * Don't load caps on install for WP.com. Instead, let's add
 * them with the WP.com + core caps approach
 */
add_filter( 'ef_kill_add_caps_to_role', '__return_true' );
add_filter( 'ef_view_calendar_cap', function () {
	return 'edit_posts';
} );
add_filter( 'ef_view_story_budget_cap', function () {
	return 'edit_posts';
} );
add_filter( 'ef_edit_post_subscriptions_cap', function () {
	return 'edit_others_posts';
} );
add_filter( 'ef_manage_usergroups_cap', function () {
	return 'manage_options';
} );

add_filter( 'redirect_canonical', 'edit_flow_wpcom_redirect_canonical' );

/**
 * Disable canonical redirect for Share A Draft links.
 *
 * Share A Draft on WordPress.com breaks when redirect canonical is enabled
 * because get_permalink() doesn't respect custom statuses.
 *
 * @see http://core.trac.wordpress.org/browser/tags/3.4.2/wp-includes/canonical.php#L113
 *
 * @param string|false $redirect The redirect URL or false.
 * @return string|false The redirect URL or false to disable.
 */
function edit_flow_wpcom_redirect_canonical( $redirect ) {
	// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Read-only check for shareadraft parameter.
	if ( ! empty( $_GET['shareadraft'] ) ) {
		return false;
	}

	return $redirect;
}

add_filter( 'ef_fix_post_name_post', 'edit_flow_fix_fix_post_name' );

/**
 * Fix caching race condition for post slugs.
 *
 * This should fix a caching race condition that can sometimes create
 * a published post with an empty slug.
 *
 * @param WP_Post $post The post object.
 * @return WP_Post The post object with refreshed status.
 */
function edit_flow_fix_fix_post_name( $post ) {
	global $wpdb;
	// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- Intentionally bypassing cache to get fresh post_status value.
	$post_status = $wpdb->get_var( $wpdb->prepare( 'SELECT post_status FROM ' . $wpdb->posts . ' WHERE ID = %d', $post->ID ) );
	if ( null !== $post_status ) {
		$post->post_status = $post_status;
	}

	return $post;
}