<?php
/**
 * AgentCart connection/pairing logic.
 *
 * @package AgentCart
 */

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

class AgentCart_Connect {

    /**
     * Pair the store with AgentCart using a 6-digit code.
     *
     * @param string $code The pairing code from AgentCart dashboard.
     * @return array|WP_Error Result with success/error info.
     */
    public static function pair( $code ) {
        $code = sanitize_text_field( trim( $code ) );

        if ( strlen( $code ) !== 6 || ! ctype_digit( $code ) ) {
            return new WP_Error(
                'invalid_code',
                __( 'Please enter a valid 6-digit pairing code.', 'agentcart' )
            );
        }

        $consumer_key    = get_option( 'agentcart_consumer_key' );
        $consumer_secret = get_option( 'agentcart_consumer_secret' );

        if ( ! $consumer_key || ! $consumer_secret ) {
            return new WP_Error(
                'no_keys',
                __( 'WooCommerce API keys not found. Try deactivating and reactivating the plugin.', 'agentcart' )
            );
        }

        $api_url = get_option( 'agentcart_api_url', 'https://app.agentcart.io' );

        $response = wp_remote_post( $api_url . '/api/woocommerce/pair', array(
            'body'    => wp_json_encode( array(
                'code'            => $code,
                'site_url'        => defined( 'AGENTCART_SITE_URL_OVERRIDE' ) ? AGENTCART_SITE_URL_OVERRIDE : get_site_url(),
                'consumer_key'    => $consumer_key,
                'consumer_secret' => $consumer_secret,
                'store_name'      => get_bloginfo( 'name' ),
                'currency'        => function_exists( 'get_woocommerce_currency' ) ? get_woocommerce_currency() : 'USD',
                'wc_version'      => defined( 'WC_VERSION' ) ? WC_VERSION : '',
            ) ),
            'headers' => array( 'Content-Type' => 'application/json' ),
            'timeout' => 30,
        ) );

        if ( is_wp_error( $response ) ) {
            return new WP_Error(
                'request_failed',
                /* translators: %s: error message from wp_remote_post */
                sprintf( __( 'Could not connect to AgentCart: %s', 'agentcart' ), $response->get_error_message() )
            );
        }

        $status_code = wp_remote_retrieve_response_code( $response );
        $body        = json_decode( wp_remote_retrieve_body( $response ), true );

        if ( $status_code !== 200 || empty( $body['success'] ) ) {
            $error_msg = isset( $body['error'] ) ? $body['error'] : __( 'Pairing failed. Please try again.', 'agentcart' );
            return new WP_Error( 'pairing_failed', $error_msg );
        }

        update_option( 'agentcart_connected', true );
        update_option( 'agentcart_merchant_id', sanitize_text_field( $body['merchant_id'] ) );
        if ( ! empty( $body['ucp_slug'] ) ) {
            update_option( 'agentcart_ucp_slug', sanitize_text_field( $body['ucp_slug'] ) );
        }

        return array(
            'success'     => true,
            'merchant_id' => $body['merchant_id'],
        );
    }

    /**
     * Disconnect the store from AgentCart.
     *
     * @return bool True on success.
     */
    public static function disconnect() {
        $merchant_id = get_option( 'agentcart_merchant_id' );
        $api_url     = get_option( 'agentcart_api_url', 'https://app.agentcart.io' );

        if ( $merchant_id ) {
            wp_remote_post( $api_url . '/api/woocommerce/disconnect', array(
                'body'    => wp_json_encode( array( 'merchant_id' => $merchant_id ) ),
                'headers' => array( 'Content-Type' => 'application/json' ),
                'timeout' => 10,
            ) );
        }

        update_option( 'agentcart_connected', false );
        update_option( 'agentcart_merchant_id', '' );

        return true;
    }

    /**
     * Check if the store is connected.
     *
     * @return bool
     */
    public static function is_connected() {
        return (bool) get_option( 'agentcart_connected', false );
    }

    /**
     * Get the merchant ID.
     *
     * @return string
     */
    public static function get_merchant_id() {
        return get_option( 'agentcart_merchant_id', '' );
    }
}