using GameList.Domain;

namespace GameList.Endpoints;

internal enum ServiceErrorCode
{
    BadRequest,
    Unauthorized,
    NotFound,
    Conflict
}

internal sealed record ServiceError(ServiceErrorCode Code, string Detail)
{
    public static ServiceError BadRequest(string detail) => new(ServiceErrorCode.BadRequest, detail);

    public static ServiceError Unauthorized(string detail = "Unauthorized") => new(ServiceErrorCode.Unauthorized, detail);

    public static ServiceError NotFound(string detail) => new(ServiceErrorCode.NotFound, detail);

    public static ServiceError Conflict(string detail) => new(ServiceErrorCode.Conflict, detail);

    public static ServiceError PhaseMismatch(Phase required, Phase current) =>
        BadRequest($"This endpoint is available in the {required} phase. Your current phase is {current}.");
}

internal readonly record struct Unit;

internal readonly record struct ServiceResult<T>(T? Value, ServiceError? Error)
{
    public bool IsSuccess => Error is null;

    public static ServiceResult<T> Success(T value) => new(value, null);

    public static ServiceResult<T> Failure(ServiceError error) => new(default, error);
}