/*
 * 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 FluentAssertions;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using ProtonVPN.Common.Core.Networking;
using ProtonVPN.Common.Legacy.Vpn;

namespace ProtonVPN.Common.Tests.Vpn;

[TestClass]
public class VpnConfigTest
{
    [TestMethod]
    public void VpnConfig_ShouldThrow_WhenPortIsNotValid()
    {
        Dictionary<VpnProtocol, IReadOnlyCollection<int>> portConfig = GetPortConfig(new()
        {
            1,
            2,
            3,
            1080,
            80,
            1944,
            9999999
        });

        // Act
        Action action = () => new VpnConfig(new() { Ports = portConfig });

        // Assert
        action.Should().Throw<ArgumentException>();
    }

    [TestMethod]
    public void VpnConfig_ShouldThrow_WhenDnsIsNotValid()
    {
        Dictionary<VpnProtocol, IReadOnlyCollection<int>> portConfig = GetPortConfig(new() { 1, 2, 3 });

        List<string> customDns = new List<string> { "1.1.1.1", "8.8.8.8", "--invalid-ip", };

        // Act
        Action action = () =>
            new VpnConfig(new() { Ports = portConfig, CustomDns = customDns });

        // Assert
        action.Should().Throw<ArgumentException>();
    }

    private Dictionary<VpnProtocol, IReadOnlyCollection<int>> GetPortConfig(List<int> ports)
    {
        return new() { { VpnProtocol.OpenVpnTcp, ports } };
    }
}