/*
 * 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.Collections.Generic;
using System.Linq;
using FluentAssertions;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using NSubstitute;
using ProtonVPN.Configurations.Contracts.Entities;
using ProtonVPN.Vpn.OpenVpn.Arguments;

namespace ProtonVPN.Vpn.Tests.OpenVpn.Arguments;

[TestClass]
public class BasicArgumentsTest
{
    private IOpenVpnConfigurations _openVpnConfig;

    [TestInitialize]
    public void TestInitialize()
    {
        _openVpnConfig = Substitute.For<IOpenVpnConfigurations>();
    }

    [TestMethod]
    public void Enumerable_ShouldContain_ExpectedNumberOfOptions()
    {
        // Arrange
        BasicArguments subject = new(_openVpnConfig);

        // Act
        List<string> result = subject.ToList();

        // Assert
        result.Should().HaveCount(3);
    }

    [TestMethod]
    public void Enumerable_ShouldContain_ConfigOption()
    {
        const string configPath = @"C:\Program Files\Proton Technologies\ProtonVPN\Resources\config.ovpn";

        // Arrange
        _openVpnConfig.ConfigPath.Returns(configPath);
        BasicArguments subject = new(_openVpnConfig);

        // Act
        List<string> result = subject.ToList();

        // Assert
        result.Should().Contain($"--config \"{configPath}\"");
    }

    [TestMethod]
    public void Enumerable_ShouldContain_SuppressTimestampsOption()
    {
        // Arrange
        BasicArguments subject = new(_openVpnConfig);

        // Act
        List<string> result = subject.ToList();

        // Assert
        result.Should().Contain("--suppress-timestamps");
    }

    [TestMethod]
    public void Enumerable_ShouldContain_ServiceOption()
    {
        const string exitEventName = "Exit-Event";

        // Arrange
        _openVpnConfig.ExitEventName.Returns(exitEventName);
        BasicArguments subject = new(_openVpnConfig);

        // Act
        List<string> result = subject.ToList();

        // Assert
        result.Should().Contain($"--service {exitEventName} 0");
    }
}