<?php
/**
 * Customizer: General → Homepage
 *
 * Client requirement:
 * - No demo import inside Customizer.
 * - If multiple home pages are already imported (by Setup → Demo Import),
 *   allow selecting which imported home should be used as the Front Page.
 *
 * Pages imported from demo are tagged with post meta: _bongoto_demo_home = 1
 *
 * @package BongotoWooCommerce
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Get imported demo home pages.
 *
 * @return array<int,int> Array of page IDs.
 */
function bongoto_woocommerce_get_imported_demo_home_pages() {
	$ids = get_posts(
		array(
			'post_type'      => 'page',
			'post_status'    => array( 'publish', 'draft' ),
			'fields'         => 'ids',
			'posts_per_page' => 50,
			'meta_key'       => '_bongoto_demo_home',
			'meta_value'     => '1',
		)
	);

	return is_array( $ids ) ? array_map( 'absint', $ids ) : array();
}

add_action(
	'customize_register',
	function ( WP_Customize_Manager $wp_customize ) {
		$section_id = 'bongoto_section_homepage';

		if ( ! $wp_customize->get_section( $section_id ) ) {
			$wp_customize->add_section(
				$section_id,
				array(
					'title'       => __( 'Homepage', 'bongoto-woocommerce' ),
					'priority'    => 15,
					'panel'       => 'bongoto_general_panel',
					'description' => __( 'Select which imported home page should be used as the Front Page. Import is done from Quick Setup → Demo Import.', 'bongoto-woocommerce' ),
				)
			);
		}

		$home_ids = bongoto_woocommerce_get_imported_demo_home_pages();

		// If nothing imported yet, keep the section but show only an info notice-like description.
		$choices = array( 0 => __( '— Select —', 'bongoto-woocommerce' ) );
		foreach ( $home_ids as $id ) {
			$title = get_the_title( $id );
			$choices[ $id ] = $title ? $title : sprintf( __( 'Page #%d', 'bongoto-woocommerce' ), $id );
		}

		$wp_customize->add_setting(
			'bongoto_selected_homepage_id',
			array(
				'default'           => (int) get_option( 'page_on_front', 0 ),
				'transport'         => 'postMessage',
				'sanitize_callback' => function ( $v ) use ( $choices ) {
					$v = absint( $v );
					return array_key_exists( $v, $choices ) ? $v : 0;
				},
			)
		);

		$wp_customize->add_control(
			'bongoto_selected_homepage_id',
			array(
				'label'       => __( 'Front Page', 'bongoto-woocommerce' ),
				'section'     => $section_id,
				'type'        => 'select',
				'choices'     => $choices,
				'description' => empty( $home_ids )
					? __( 'No imported home pages found yet. Use Quick Setup → Demo Import to import one or more home JSON files first.', 'bongoto-woocommerce' )
					: __( 'Switch the site Front Page to one of your imported home pages.', 'bongoto-woocommerce' ),
			)
		);
	},
	40
);

/**
 * When Customizer settings are saved, apply the selected front page.
 */
add_action(
	'customize_save_after',
	function () {
		$page_id = absint( get_theme_mod( 'bongoto_selected_homepage_id', 0 ) );
		if ( $page_id > 0 && 'page' === get_post_type( $page_id ) ) {
			update_option( 'show_on_front', 'page' );
			update_option( 'page_on_front', $page_id );
		}
	}
);


/**
 * Live preview: when selecting a Home page in Customizer, update the preview URL instantly.
 */
add_action( 'customize_controls_enqueue_scripts', function() {
    if ( ! function_exists( 'bongoto_woo_get_demo_homepage_ids' ) ) { return; }
    $home_ids = bongoto_woo_get_demo_homepage_ids();
    if ( empty( $home_ids ) ) { return; }

    $urls = [];
    foreach ( $home_ids as $id ) {
        $id = absint( $id );
        if ( $id > 0 ) {
            $urls[ $id ] = get_permalink( $id );
        }
    }

    wp_enqueue_script(
        'bongoto-homepage-preview',
        get_template_directory_uri() . '/inc/customizer/assets/homepage-preview.js',
        [ 'customize-controls', 'jquery' ],
        '1.0.0',
        true
    );
    wp_localize_script( 'bongoto-homepage-preview', 'BONGOTO_HOME_PREVIEW', [
        'urls' => $urls,
    ] );
} );