<?php

namespace WooOrderCart\Front\AddToCart;

class AddToCartContext {
    private const INTERNAL_PRODUCT_ID_KEY = 'ips_add_to_cart_product_id';

    public static function get_internal_product_id_key(): string {
        return self::INTERNAL_PRODUCT_ID_KEY;
    }

    /**
     * @return array<int,string>
     */
    public static function get_handled_query_args(): array {
        return [
            'add-to-cart',
            'product_id',
            'quantity',
            'variation_id',
            'ips_order_bump_id',
            'ips_order_bump_location',
        ];
    }

    public static function is_enabled(): bool {
        if ( is_admin() || ! function_exists( 'WC' ) ) {
            return false;
        }

        return AddToCartRuntimePolicy::should_boot_bridge();
    }

    public static function should_render_runtime(): bool {
        if ( ! self::is_enabled() ) {
            return false;
        }

        return ! is_checkout() && ! is_order_received_page() && ! is_checkout_pay_page();
    }

    public static function should_prevent_native_redirects(): bool {
        return self::is_enabled() && ! wp_doing_ajax();
    }

    public static function is_sidecart_ajax_request(): bool {
        if ( ! wp_doing_ajax() ) {
            return false;
        }

        $wc_ajax = isset( $_GET['wc-ajax'] ) ? sanitize_key( wp_unslash( $_GET['wc-ajax'] ) ) : '';

        return 'ipscmi_order_cart_add_to_cart' === $wc_ajax;
    }

    public static function is_get_add_to_cart_request(): bool {
        if ( 'GET' !== strtoupper( (string) ( $_SERVER['REQUEST_METHOD'] ?? '' ) ) ) {
            return false;
        }

        return self::get_requested_product_id() > 0;
    }

    public static function get_requested_product_id(): int {
        $product_id = is_scalar( $_REQUEST[ self::get_internal_product_id_key() ] ?? null ) ? absint( wp_unslash( $_REQUEST[ self::get_internal_product_id_key() ] ) ) : 0;

        if ( $product_id <= 0 ) {
            $product_id = is_scalar( $_REQUEST['product_id'] ?? null ) ? absint( wp_unslash( $_REQUEST['product_id'] ) ) : 0;
        }

        if ( $product_id <= 0 ) {
            $product_id = is_scalar( $_REQUEST['add-to-cart'] ?? null ) ? absint( wp_unslash( $_REQUEST['add-to-cart'] ) ) : 0;
        }

        return $product_id;
    }

    public static function get_clean_request_url(): string {
        $request_uri = isset( $_SERVER['REQUEST_URI'] ) ? (string) wp_unslash( $_SERVER['REQUEST_URI'] ) : '';
        if ( '' === $request_uri ) {
            return '';
        }

        $query_args = self::get_handled_query_args();
        foreach ( array_keys( $_GET ) as $key ) {
            if ( 0 === strpos( (string) $key, 'attribute_' ) ) {
                $query_args[] = (string) $key;
            }
        }

        return (string) remove_query_arg( array_unique( $query_args ), $request_uri );
    }
}