<?php
/**
 * AI View HTTP APIs (property list, bind) for the setup wizard.
 *
 * @package Gcco\AiViewSync
 */

namespace Gcco\AiViewSync;

defined( 'ABSPATH' ) || exit;

/**
 * Remote JSON APIs (not the llms body sync).
 */
class Remote_API {

	/**
	 * @return string
	 */
	public static function get_properties_api_url() {
		if ( defined( 'AIVISY_PROPERTIES_API_URL' ) && is_string( AIVISY_PROPERTIES_API_URL ) && '' !== trim( AIVISY_PROPERTIES_API_URL ) ) {
			return trim( AIVISY_PROPERTIES_API_URL );
		}
		if ( defined( 'AIVISY_APP_URL' ) && is_string( AIVISY_APP_URL ) && '' !== trim( AIVISY_APP_URL ) ) {
			return rtrim( trim( AIVISY_APP_URL ), '/' ) . '/wordpress_llms_properties_api.php';
		}
		return (string) apply_filters( 'aivisy_properties_api_url', '' );
	}

	/**
	 * @return string
	 */
	public static function get_bind_api_url() {
		if ( defined( 'AIVISY_BIND_API_URL' ) && is_string( AIVISY_BIND_API_URL ) && '' !== trim( AIVISY_BIND_API_URL ) ) {
			return trim( AIVISY_BIND_API_URL );
		}
		if ( defined( 'AIVISY_APP_URL' ) && is_string( AIVISY_APP_URL ) && '' !== trim( AIVISY_APP_URL ) ) {
			return rtrim( trim( AIVISY_APP_URL ), '/' ) . '/wordpress_llms_bind_property_api.php';
		}
		return (string) apply_filters( 'aivisy_bind_api_url', '' );
	}

	/**
	 * @param array<string, mixed> $settings Plugin settings.
	 * @return array<int, array<string, mixed>>|\WP_Error
	 */
	public static function fetch_properties( array $settings ) {
		if ( empty( $settings['connection_token'] ) ) {
			return new \WP_Error( 'aivisy_no_token', __( 'Not connected.', 'ai-view-sync' ) );
		}
		$url = self::get_properties_api_url();
		if ( '' === $url ) {
			return new \WP_Error( 'aivisy_no_url', __( 'AI View app URL is not configured.', 'ai-view-sync' ) );
		}
		$endpoint = add_query_arg(
			array(
				'token'    => (string) $settings['connection_token'],
				'site_url' => home_url( '/' ),
				'_'        => (string) time(),
			),
			$url
		);
		$response = wp_remote_get(
			$endpoint,
			array(
				'timeout'   => 20,
				'sslverify' => true,
				'headers'   => array( 'Accept' => 'application/json' ),
			)
		);
		if ( is_wp_error( $response ) ) {
			return $response;
		}
		$code = wp_remote_retrieve_response_code( $response );
		$body = wp_remote_retrieve_body( $response );
		$data = json_decode( $body, true );
		if ( $code >= 400 || ! is_array( $data ) || empty( $data['success'] ) ) {
			$err = is_array( $data ) && isset( $data['error'] ) ? (string) $data['error'] : 'HTTP ' . (string) $code;
			return new \WP_Error( 'aivisy_properties', $err );
		}
		if ( empty( $data['properties'] ) || ! is_array( $data['properties'] ) ) {
			return array();
		}
		return $data['properties'];
	}

	/**
	 * @param string               $property_id GA4 property id.
	 * @param array<string, mixed> $settings    Plugin settings.
	 * @return true|\WP_Error
	 */
	public static function bind_property( $property_id, array $settings ) {
		$url = self::get_bind_api_url();
		if ( '' === $url ) {
			return new \WP_Error( 'aivisy_no_bind_url', __( 'Bind API URL missing.', 'ai-view-sync' ) );
		}
		$response = wp_remote_post(
			$url,
			array(
				'timeout'   => 20,
				'sslverify' => true,
				'body'      => array(
					'token'       => (string) $settings['connection_token'],
					'site_url'    => home_url( '/' ),
					'property_id' => (string) $property_id,
				),
			)
		);
		if ( is_wp_error( $response ) ) {
			return $response;
		}
		$code = wp_remote_retrieve_response_code( $response );
		$body = wp_remote_retrieve_body( $response );
		$data = json_decode( $body, true );
		if ( $code >= 400 || ! is_array( $data ) || empty( $data['success'] ) ) {
			$err = is_array( $data ) && isset( $data['error'] ) ? (string) $data['error'] : 'HTTP ' . (string) $code;
			return new \WP_Error( 'aivisy_bind', $err );
		}
		return true;
	}
}