Foxchat.NET/Foxchat.Core/FoxchatError.cs

using System.Net;

namespace Foxchat.Core;

public class FoxchatError(string message, Exception? inner = null) : Exception(message)
{
    public Exception? Inner => inner;

    public class DatabaseError(string message, Exception? inner = null) : FoxchatError(message, inner);
    public class UnknownEntityError(Type entityType, Exception? inner = null) : FoxchatError($"Entity of type {entityType.Name} not found", inner);
}

public class ApiError(string message, HttpStatusCode? statusCode = null) : FoxchatError(message)
{
    public readonly HttpStatusCode StatusCode = statusCode ?? HttpStatusCode.InternalServerError;

    public class Unauthorized(string message) : ApiError(message, statusCode: HttpStatusCode.Unauthorized);

    public class Forbidden(string message, IEnumerable<string>? scopes = null) : ApiError(message, statusCode: HttpStatusCode.Forbidden)
    {
        public readonly string[] Scopes = scopes?.ToArray() ?? [];
    }

    public class BadRequest(string message) : ApiError(message, statusCode: HttpStatusCode.BadRequest);
    public class IncomingFederationError(string message) : ApiError(message, statusCode: HttpStatusCode.BadRequest);

    public class OutgoingFederationError(
        string message, Models.Http.ApiError? innerError = null
    ) : ApiError(message, statusCode: HttpStatusCode.InternalServerError)
    {
        public Models.Http.ApiError? InnerError => innerError;
    }

    public class AuthenticationError(string message) : ApiError(message, statusCode: HttpStatusCode.BadRequest);
}