<?php
/**
 * WP-CLI commands.
 *
 * @package Hintwise
 */

defined( 'ABSPATH' ) || exit;

/**
 * Manage the Hintwise handbook.
 */
class Hintwise_CLI {

	/**
	 * Lists starter library packs, or installs one.
	 *
	 * ## OPTIONS
	 *
	 * [<pack>]
	 * : Pack to install (e.g. core, woocommerce). Omit to list packs.
	 *
	 * [--force]
	 * : Overwrite guides that already exist with the library version.
	 *
	 * ## EXAMPLES
	 *
	 *     wp hintwise library
	 *     wp hintwise library core
	 *
	 * @param array $args  Positional.
	 * @param array $assoc Named.
	 */
	public function library( $args, $assoc ) {
		if ( empty( $args[0] ) ) {
			$rows      = array();
			$installed = Hintwise_Library::installed();
			foreach ( Hintwise_Library::packs() as $id => $p ) {
				$guides = $p['available'] ? Hintwise_Library::guides( $id ) : array();
				$rows[] = array(
					'pack'      => $id,
					'title'     => $p['title'],
					'available' => Hintwise_Library::can_install( $id ) ? 'yes' : ( $p['pro'] && ! hintwise_is_pro() ? 'pro' : 'no' ),
					'guides'    => count( $guides ),
					'installed' => count( array_intersect_key( $installed, array_flip( wp_list_pluck( $guides, 'id' ) ) ) ),
				);
			}
			WP_CLI\Utils\format_items( 'table', $rows, array( 'pack', 'title', 'available', 'guides', 'installed' ) );
			return;
		}
		$r = Hintwise_Library::install( $args[0], array(), ! empty( $assoc['force'] ) );
		if ( is_wp_error( $r ) ) {
			WP_CLI::error( $r->get_error_message() );
		}
		WP_CLI::success( sprintf( 'Created %d, updated %d, skipped %d.', $r['created'], $r['updated'], $r['skipped'] ) );
	}

	/**
	 * Exports all guides to JSON.
	 *
	 * ## OPTIONS
	 *
	 * [--file=<file>]
	 * : Write to this file instead of STDOUT.
	 *
	 * @param array $args  Positional.
	 * @param array $assoc Named.
	 */
	public function export( $args, $assoc ) {
		$json = wp_json_encode( Hintwise_Transfer::export(), JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE );
		if ( ! empty( $assoc['file'] ) ) {
			file_put_contents( $assoc['file'], $json ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_file_put_contents
			WP_CLI::success( 'Exported to ' . $assoc['file'] );
			return;
		}
		WP_CLI::line( $json );
	}

	/**
	 * Imports guides from a JSON export.
	 *
	 * ## OPTIONS
	 *
	 * <file>
	 * : Export file.
	 *
	 * @param array $args Positional.
	 */
	public function import( $args ) {
		if ( ! is_readable( $args[0] ) ) {
			WP_CLI::error( 'Cannot read ' . $args[0] );
		}
		$r = Hintwise_Transfer::import( json_decode( (string) file_get_contents( $args[0] ), true ) ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
		if ( is_wp_error( $r ) ) {
			WP_CLI::error( $r->get_error_message() );
		}
		WP_CLI::success( sprintf( 'Imported %d guides.', $r['created'] ) );
	}

	/**
	 * Copies WP Help documents into guides, with their order, sections and links. Documents
	 * copied before are skipped, so it is safe to run again. WP Help itself is not changed.
	 *
	 * ## OPTIONS
	 *
	 * [--dry-run]
	 * : Only report what would be imported.
	 *
	 * [--menu-label]
	 * : Also use WP Help's menu name (e.g. "Publishing Help") for the Site Guide menu.
	 *
	 * ## EXAMPLES
	 *
	 *     wp hintwise import-wp-help --dry-run
	 *     wp hintwise import-wp-help --menu-label
	 *
	 * @subcommand import-wp-help
	 *
	 * @param array $args  Positional.
	 * @param array $assoc Named.
	 */
	public function import_wp_help( $args, $assoc ) {
		$dry = ! empty( $assoc['dry-run'] );
		$r   = Hintwise_WP_Help::import(
			array(
				'dry_run'    => $dry,
				'menu_label' => ! empty( $assoc['menu-label'] ),
			)
		);
		WP_CLI::success( sprintf( '%s %d WP Help documents, skipped %d imported before.', $dry ? 'Would import' : 'Imported', $r['created'], $r['skipped'] ) );
	}
}