<?php

namespace WooOrderCart\Modules\Support;

class ModuleToggles {
    private static ?self $instance = null;

    /**
     * @var array<string,array{key:string,section:string,default:mixed}>
     */
    private array $module_keys = [
        'sidecart' => [
            'key' => 'enable_reactsidecart',
            'section' => 'sidecart_general_tabs',
            'default' => 'off',
        ],
        'cartrecovery' => [
            'key' => 'enable_cart_recovery',
            'section' => 'cart_recovery_settings_tabs',
            'default' => 'off',
        ],
        'orderbumps' => [
            'key' => 'enable_orderbumps',
            'section' => 'orderbumps_general_tabs',
            'default' => 'off',
        ],
        'cartgate' => [
            'key' => 'enable_cartgate',
            'section' => 'cartgate_general_tabs',
            'default' => 'off',
        ],
        'localpickup' => [
            'key' => 'enable_localpickup',
            'section' => 'localpickup_general_tabs',
            'default' => 'off',
        ],
        'cart_page' => [
            'key' => 'enable_cart_page',
            'section' => 'cart_page_settings_tabs',
            'default' => 'off',
        ],
        'thankyou' => [
            'key' => 'enable_thankyou',
            'section' => 'thankyou_general_tabs',
            'default' => 'off',
        ],
        'checkout' => [
            'key' => 'enable_checkout',
            'section' => 'checkout_settings_tabs',
            'default' => 'off',
        ],
        'checkoutgate' => [
            'key' => 'enable_checkoutgate',
            'section' => 'checkoutgate_general_tabs',
            'default' => 'off',
        ],
    ];

    public static function instance(): self {
        return self::$instance ??= new self();
    }

    public function is_enabled( string $module ): bool {
        if ( ! $this->is_available( $module ) ) {
            return false;
        }
        $config = $this->module_keys[ $module ] ?? null;
        if ( ! is_array( $config ) ) {
            return false;
        }

        $value = function_exists( 'wooordercart_get_option' )
            ? wooordercart_get_option( $config['key'], $config['section'], $config['default'] )
            : $config['default'];

        return $this->normalize_bool( $value );
    }

    /**
     * @return array<string,bool>
     */
    public function all(): array {
        $flags = [];

        foreach ( array_keys( $this->module_keys ) as $module ) {
            $flags[ $module ] = $this->is_enabled( $module );
        }

        return $flags;
    }

    public function any_frontend_module_enabled(): bool {
        foreach ( [ 'sidecart', 'orderbumps', 'cartgate', 'localpickup', 'cart_page', 'thankyou', 'checkout', 'checkoutgate' ] as $module ) {
            if ( $this->is_enabled( $module ) ) {
                return true;
            }
        }

        return false;
    }

    public function has_checkout_support_features_enabled(): bool {
        return $this->is_enabled( 'cartgate' ) || $this->is_enabled( 'checkoutgate' ) || $this->is_enabled( 'localpickup' );
    }

    public function should_boot_modern_checkout_support(): bool {
        return $this->is_enabled( 'checkout' ) || $this->is_enabled( 'cartgate' ) || $this->is_enabled( 'checkoutgate' );
    }

    public function should_boot_ajax_server_check(): bool {
        return $this->is_enabled( 'sidecart' )
            || $this->is_enabled( 'checkout' )
            || $this->is_enabled( 'cartgate' )
            || $this->is_enabled( 'checkoutgate' );
    }

    public function has_manage_screen( string $module ): bool {
        // Configuration stays accessible while storefront execution is disabled.
        return $this->is_available( $module ) && in_array( $module, [ 'orderbumps', 'cartgate', 'localpickup', 'checkoutgate' ], true );
    }

    private function is_available( string $module ): bool {
        $features = [ 'cartrecovery' => 'abandoned_cart_recovery', 'orderbumps' => 'order_bumps', 'checkoutgate' => 'checkout_gate' ];
        return ! isset( $features[ $module ] ) || \WooOrderCart\Cart\CartFeatureRegistry::instance()->is_enabled( $features[ $module ] );
    }

    /**
     * @param mixed $value
     */
    private function normalize_bool( $value ): bool {
        return in_array( $value, [ true, 1, '1', 'on', 'yes' ], true );
    }
}