/*
 * Copyright (c) 2023 Proton AG
 *
 * This file is part of ProtonVPN.
 *
 * ProtonVPN is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * ProtonVPN is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with ProtonVPN.  If not, see <https://www.gnu.org/licenses/>.
 */

using System;
using System.Collections.Generic;
using System.Net.Http;
using ProtonVPN.Api.Contracts.Common;
using ProtonVPN.Common.Legacy.Abstract;

namespace ProtonVPN.Api.Contracts;

public class ApiResponseResult<T> : Result<T>
{
    public HttpResponseMessage ResponseMessage { get; }
    public IList<BaseResponseDetailAction> Actions { get; }
    public DateTimeOffset? LastModified { get; }
    public bool IsNotModified { get; }

    public ApiResponseResult(HttpResponseMessage responseMessage, bool success, string error, bool isNotModified, T value)
        : base(value, success, error)
    {
        ResponseMessage = responseMessage;
        Actions = value is BaseResponse baseResponse ? baseResponse?.Details?.Actions : null;
        LastModified = responseMessage?.Content?.Headers?.LastModified;
        IsNotModified = isNotModified;
    }

    protected ApiResponseResult(HttpResponseMessage responseMessage, bool success, string error, bool isNotModified)
        : base(default(T), success, error)
    {
        ResponseMessage = responseMessage;
        LastModified = responseMessage?.Content?.Headers?.LastModified;
        IsNotModified = isNotModified;
    }

    public static ApiResponseResult<T> Ok(HttpResponseMessage responseMessage, T value)
    {
        return new ApiResponseResult<T>(responseMessage, success: true, "", isNotModified: false, value);
    }

    public static ApiResponseResult<T> Fail(HttpResponseMessage responseMessage, string error)
    {
        return new ApiResponseResult<T>(responseMessage, success: false, error, isNotModified: false);
    }

    public static ApiResponseResult<T> Fail(T value, HttpResponseMessage responseMessage, string error)
    {
        return new ApiResponseResult<T>(responseMessage, success: false, error, isNotModified: false, value);
    }

    public static ApiResponseResult<T> NotModified(HttpResponseMessage responseMessage)
    {
        return new ApiResponseResult<T>(responseMessage, success: true, "", isNotModified: true);
    }
}