<?php
if ( ! defined( 'ABSPATH' ) ) { exit; }

/**
 * Bongoto WooCommerce – Colors (Conditional)
 *
 * Rules:
 * - If demo preset JSON exists in template-parts/demos/<demo>/presets/, expose ALL preset colors in Customizer.
 * - If no preset exists, expose only 3 minimal controls:
 *     - Site Background, Header Background, Footer Background
 * - Keep everything inside ONE section: Customizing → General → Colors
 * - Hide/remove other color-related sections to avoid duplicates.
 */

if ( ! function_exists( 'bongoto_wc_find_demo_preset_file' ) ) {
    function bongoto_wc_find_demo_preset_file() : string {
        $demo_slug = 'bongoto-woocommerce';
        $upload = wp_upload_dir();
        $upload_dir = trailingslashit( $upload['basedir'] ) . 'bongoto-woocommerce/demo/' . $demo_slug . '/presets/';

        $dir = $upload_dir;
        if ( ! is_dir( $dir ) ) {
            $dir = trailingslashit( get_template_directory() ) . 'template-parts/demos/' . $demo_slug . '/presets/';
        }

        if ( ! is_dir( $dir ) ) {
            return '';
        }

        // Prefer colors-default.json if present (matches your server naming).
        $preferred = $dir . 'colors-default.json';
        if ( is_file( $preferred ) ) {
            return $preferred;
        }

        // Otherwise pick the first JSON file.
        $files = glob( $dir . '*.json' );
        if ( is_array( $files ) && ! empty( $files ) ) {
            // Deterministic order
            sort( $files, SORT_STRING );
            return (string) $files[0];
        }

        return '';
    }
}

if ( ! function_exists( 'bongoto_wc_read_preset_theme_mods' ) ) {
    function bongoto_wc_read_preset_theme_mods( string $file ) : array {
        if ( ! $file || ! is_file( $file ) ) {
            return [];
        }

        $raw = file_get_contents( $file );
        if ( ! is_string( $raw ) || $raw === '' ) {
            return [];
        }

        $json = json_decode( $raw, true );
        if ( ! is_array( $json ) ) {
            return [];
        }

        // Expect: {"theme_mods": { "bongoto_color_...": "#fff", ... }}
        if ( isset( $json['theme_mods'] ) && is_array( $json['theme_mods'] ) ) {
            return $json['theme_mods'];
        }

        // Fallback: allow flat key/value JSON.
        return $json;
    }
}

if ( ! function_exists( 'bongoto_wc_humanize_color_key' ) ) {
    function bongoto_wc_humanize_color_key( string $key ) : string {
        $k = $key;

        // Drop common prefixes.
        $k = preg_replace( '/^bongoto_color_/', '', $k );
        $k = preg_replace( '/^bongoto_woocommerce_color_/', '', $k );

        // Special nicer labels.
        $map = [
            'site_bg'            => 'Site Background',
            'header_bg'          => 'Header Background',
            'footer_bg'          => 'Footer Background',
            'header_top_bg'      => 'Header Top Background',
            'site_title'         => 'Site Title',
            'search_box'         => 'Search Box',
            'search_btn'         => 'Search Button',
            'cart_icon'          => 'Cart Icon',
            'cart_count_bg'      => 'Cart Count Background',
            'cart_count_text'    => 'Cart Count Text',
            'account_icon'       => 'Account Icon',
            'add_to_cart'        => 'Add to Cart Button',
            'buy_now'            => 'Buy Now Button',
            'cart_btn'           => 'Cart Button',
            'checkout_btn'       => 'Checkout Button',
            'free_download'      => 'Free Download Button',
            'download_now'       => 'Download Now Button',
            'related_product'    => 'Related Product Button',
            'footer_text'        => 'Footer Text',
            'copyright_bg'       => 'Copyright Background',
            'copyright_text'     => 'Copyright Text',
            'primary'            => 'Primary',
            'accent'             => 'Accent',
            'text'               => 'Text',
            'bg'                 => 'Background',
            'checkout'           => 'Checkout',
        ];

        if ( isset( $map[ $k ] ) ) {
            return $map[ $k ];
        }

        // Generic humanize.
        $k = str_replace( ['-', '_'], ' ', $k );
        $k = trim( preg_replace( '/\s+/', ' ', $k ) );
        return ucwords( $k );
    }
}

add_action( 'customize_register', function( $wp_customize ) {

    // Single colors section under General panel.
    $section_id = 'bongoto_wc_colors';

    if ( ! $wp_customize->get_section( $section_id ) ) {
        $wp_customize->add_section( $section_id, [
            'title'       => __( 'Colors', 'bongoto-woocommerce' ),
            'priority'    => 30,
            'panel'       => 'bongoto_general_panel',
			'description' => __( 'Theme colors. Demo color presets are available only after purchase code verification.', 'bongoto-woocommerce' ),
        ] );
    }

    $add_color = function( string $id, string $label, string $default = '' ) use ( $wp_customize, $section_id ) {
        if ( $wp_customize->get_setting( $id ) ) {
            return;
        }

        $wp_customize->add_setting( $id, [
            'default'           => $default,
            'type'              => 'theme_mod',
            'transport'         => 'refresh',
            'sanitize_callback' => 'sanitize_hex_color',
        ] );

        $wp_customize->add_control( new WP_Customize_Color_Control( $wp_customize, $id, [
            'label'    => $label,
            'section'  => $section_id,
            'settings' => $id,
        ] ) );
    };

	// Conditional: if preset exists, expose ALL theme_mods from preset (Premium only).
	$is_pro = function_exists( 'bongoto_woocommerce_is_pro_active' )
		? bongoto_woocommerce_is_pro_active()
		: ( function_exists( 'bongoto_is_premium_active' ) ? bongoto_is_premium_active() : (bool) get_option( 'bongoto_premium_active', false ) );
	$preset_file = $is_pro ? bongoto_wc_find_demo_preset_file() : '';
	$preset_mods = $preset_file ? bongoto_wc_read_preset_theme_mods( $preset_file ) : [];

    if ( ! empty( $preset_mods ) ) {

        // Only show color-like keys (hex values) to avoid random JSON data.
        foreach ( $preset_mods as $key => $value ) {
            if ( ! is_string( $key ) ) { continue; }
            if ( ! is_string( $value ) ) { continue; }

            $val = trim( $value );
            // Accept hex colors only.
            if ( ! preg_match( '/^#([a-fA-F0-9]{3}|[a-fA-F0-9]{6})$/', $val ) ) {
                continue;
            }

            // We only want theme mods that belong to this theme.
            if ( strpos( $key, 'bongoto_' ) !== 0 ) {
                continue;
            }

            $add_color( $key, bongoto_wc_humanize_color_key( $key ), $val );
        }

    } else {

        // Minimal defaults (shown only when demo preset doesn't exist).
        $add_color( 'bongoto_color_site_bg',   __( 'Site Background', 'bongoto-woocommerce' ),   '#ffffff' );
        $add_color( 'bongoto_color_header_bg', __( 'Header Background', 'bongoto-woocommerce' ), '#ffffff' );
        $add_color( 'bongoto_color_footer_bg', __( 'Footer Background', 'bongoto-woocommerce' ), '#111111' );
    }

}, 30 );

/**
 * Remove other color sections to avoid duplicates.
 */
add_action( 'customize_register', function( $wp_customize ) {

    $keep = 'bongoto_wc_colors';

    // Remove core Colors section.
    if ( $wp_customize->get_section( 'colors' ) ) {
        $wp_customize->remove_section( 'colors' );
    }

    // Remove any section that looks like a color menu, except our keep section.
    foreach ( $wp_customize->sections() as $id => $section ) {
        if ( $id === $keep ) { continue; }
        $lid = strtolower( (string) $id );
        if ( strpos( $lid, 'color' ) !== false || strpos( $lid, 'palette' ) !== false ) {
            $wp_customize->remove_section( $id );
        }
    }

}, 999 );