<?php
/**
 * Lightweight HTTP client helpers.
 *
 * @package AIContentByParallax
 */

namespace AIContentByParallax\Api;

defined( 'ABSPATH' ) || exit;

/**
 * Generic API request helpers.
 */
class GenericRequest {

	/**
	 * Perform a GET request and return a decoded array or error payload.
	 *
	 * @param string $url  Target URL.
	 * @param array  $args Optional wp_remote_get arguments.
	 * @return array
	 */
	public static function get_request_payload( string $url, array $args = array() ): array {
		$response = wp_remote_get( $url, $args );

		if ( is_wp_error( $response ) ) {
			return array( 'error' => 'API request failed: ' . $response->get_error_message() );
		}

		$code = wp_remote_retrieve_response_code( $response );
		$msg  = wp_remote_retrieve_response_message( $response );
		$body = wp_remote_retrieve_body( $response );

		if ( $code < 200 || $code >= 300 ) {
			return array(
				'error' => "HTTP $code $msg",
				'body'  => $body,
			);
		}

		$decoded = json_decode( $body, true );
		if ( json_last_error() === JSON_ERROR_NONE && is_array( $decoded ) ) {
			return $decoded;
		}

		return array( 'error' => 'Invalid JSON response from API' );
	}

	/**
	 * Get the request arguments including headers.
	 *
	 * @param string $key The API key for authentication.
	 * @return array The request arguments.
	 */
	public static function get_request_args( string $key ): array {
		$headers = array(
			'Content-Type'         => 'application/json',
			'Accept'               => 'application/json',
			'X-API-KEY'            => $key,
			'X-Client-Application' => 'WooCommerce',
			'X-Client-Website'     => esc_url_raw( home_url( '/' ) ),
		);
		return array(
			'headers' => $headers,
			'timeout' => 15,
		);
	}
}