<?php
/**
 * OpenAI error responses as ProviderError codes.
 *
 * @package Fitzaro
 */

namespace Fitzaro\Provider\OpenAi;

use Fitzaro\Provider\ProviderError;

defined( 'ABSPATH' ) || exit;

/**
 * Reads the HTTP status and error.code only. The error message is never read, stored or logged:
 * OpenAI includes part of the key in some of them.
 */
final class ErrorMap {

	/**
	 * ProviderError code for a failed response.
	 *
	 * @param int    $status HTTP status.
	 * @param string $code   error.code from the body, or ''.
	 */
	public static function code( int $status, string $code ): string {
		if ( 401 === $status ) {
			return ProviderError::INVALID_KEY;
		}

		if ( in_array( $code, array( 'insufficient_quota', 'billing_hard_limit_reached' ), true ) ) {
			return ProviderError::NO_QUOTA;
		}

		if ( 429 === $status ) {
			return ProviderError::RATE_LIMITED;
		}

		if ( 403 === $status || 404 === $status ) {
			return ProviderError::FORBIDDEN;
		}

		if ( in_array( $code, array( 'moderation_blocked', 'content_policy_violation' ), true ) ) {
			return ProviderError::MODERATION;
		}

		if ( 400 === $status ) {
			return ProviderError::BAD_REQUEST;
		}

		return $status >= 500 ? ProviderError::SERVER : ProviderError::UNKNOWN;
	}
}