<?php
defined( 'ABSPATH' ) || exit;

/**
 * First-run bootstrap and Yoast handoff.
 */
class ADCT_LLMS_Activator {

	const BOOTSTRAP_DONE = 'adct_llms_bootstrap_done';

	public static function activate() {
		$fresh = ! get_option( ADCT_LLMS_Settings::OPTION );

		if ( $fresh ) {
			ADCT_LLMS_Settings::update( self::build_bootstrap_settings() );
			update_option( self::BOOTSTRAP_DONE, current_time( 'mysql' ) );
		}

		ADCT_LLMS_Cron::activate();

		if ( $fresh ) {
			if ( ADCT_LLMS_License::is_commercial() ) {
				ADCT_LLMS_License::maybe_start_grace_period();
			}
			ADCT_LLMS_File_Writer::regenerate_all();
		}
	}

	public static function build_bootstrap_settings() {
		$defaults = ADCT_LLMS_Settings::get_defaults();

		$defaults['site_title']   = get_bloginfo( 'name' );
		$defaults['site_summary'] = '';

		$defaults['shop_page_id']     = self::page_id_by_slug( 'shop' ) ?: self::page_id_by_slug( 'cars' ) ?: 0;
		$defaults['brands_parent_id'] = self::page_id_by_slug( 'brands' ) ?: 0;
		$defaults['brands_taxonomy']  = taxonomy_exists( 'product_brand' ) ? 'product_brand' : '';
		$defaults['llms']['brands']['mode']  = 'taxonomy';
		$defaults['full']['brands']['mode']  = 'taxonomy';
		$defaults['pinned_page_ids']  = array_values(
			array_filter(
				array(
					self::page_id_by_slug( 'about' ),
					self::page_id_by_slug( 'about-us' ),
					self::page_id_by_slug( 'contact' ),
					self::page_id_by_slug( 'contact-us' ),
				)
			)
		);

		if ( post_type_exists( 'jobs' ) ) {
			$defaults['cpts']['jobs'] = array(
				'enabled' => true,
				'mode'    => 'all',
				'limit'   => 0,
				'ids'     => array(),
				'title'   => 'Jobs',
			);
			$defaults['llms']['cpts']['jobs'] = $defaults['cpts']['jobs'];
			$defaults['full']['cpts']['jobs'] = $defaults['cpts']['jobs'];
		}

		$defaults['disable_yoast_llms'] = true;
		$defaults['include_sold_llms']   = false;
		$defaults['include_sold_full'] = true;
		$defaults['auto_regenerate']     = 'weekly';
		$defaults['llms']['products']['limit'] = 10;
		$defaults['llms']['posts']['limit']    = 5;
		$defaults['full']['pages']['enabled']  = true;
		$defaults['full']['pages']['mode']     = 'all';
		$defaults['full']['products']['mode']  = 'all';

		return $defaults;
	}

	private static function page_id_by_slug( $slug ) {
		$page = get_page_by_path( $slug );

		return $page ? (int) $page->ID : 0;
	}

	/**
	 * @return array<int, array{label:string,done:bool,note:string}>
	 */
	public static function get_setup_checklist() {
		$settings = ADCT_LLMS_Settings::get();
		$last     = ADCT_LLMS_File_Writer::get_last_generated();
		$llms_ok  = file_exists( ABSPATH . 'llms.txt' );
		$full_ok  = file_exists( ABSPATH . 'llms-full.txt' );

		$yoast_off = ! ADCT_LLMS_Yoast::is_active() || ! ADCT_LLMS_Yoast::is_llms_txt_enabled();

		$items = array(
			array(
				'label' => __( 'Plugin enabled', 'adct-llm-index' ),
				'done'  => ! empty( $settings['enabled'] ),
				'note'  => '',
			),
		);

		if ( ! empty( $settings['disable_yoast_llms'] ) ) {
			$items[] = array(
				'label' => __( 'Yoast llms.txt disabled (avoid duplicate files)', 'adct-llm-index' ),
				'done'  => $yoast_off,
				'note'  => $yoast_off ? '' : __( 'Use the button below or Yoast → Site features → llms.txt', 'adct-llm-index' ),
			);
		}

		$items = array_merge(
			$items,
			array(
				array(
					'label' => __( 'Shop / inventory page selected', 'adct-llm-index' ),
					'done'  => ! empty( $settings['shop_page_id'] ),
					'note'  => '',
				),
				array(
					'label' => __( 'Brands hub page selected', 'adct-llm-index' ),
					'done'  => ! empty( $settings['brands_parent_id'] ),
					'note'  => '',
				),
				array(
					'label' => __( 'Site summary (blockquote) filled in', 'adct-llm-index' ),
					'done'  => '' !== trim( (string) ( $settings['site_summary'] ?? '' ) ),
					'note'  => '',
				),
				array(
					'label' => __( 'llms.txt generated on server', 'adct-llm-index' ),
					'done'  => $llms_ok && ! empty( $last['llms'] ),
					'note'  => $llms_ok ? '' : __( 'Click Save & regenerate files', 'adct-llm-index' ),
				),
				array(
					'label' => __( 'llms-full.txt generated on server', 'adct-llm-index' ),
					'done'  => $full_ok && ! empty( $last['full'] ),
					'note'  => $full_ok ? '' : __( 'Click Save & regenerate files', 'adct-llm-index' ),
				),
			)
		);

		if ( ADCT_LLMS_License::is_commercial() ) {
			array_splice(
				$items,
				5,
				0,
				array(
					array(
						'label' => __( 'Valid license activated', 'adct-llm-index' ),
						'done'  => ADCT_LLMS_License::has_valid_license(),
						'note'  => ADCT_LLMS_License::has_valid_license() ? '' : __( 'Settings → LLM Index → License', 'adct-llm-index' ),
					),
				)
			);
		}

		return $items;
	}
}