using System;
using Moq;
using NUnit.Framework;
using TicTacToe.Core;
using TicTacToe.Core.GameNetworkInterfaces;

namespace TicTacToe.Tests
{
    [TestFixture]
    public class GameEngineTests
    {
        private GameEngine _gameEngine;
        private Mock<ICommonGameNetworkControl> _networkMock;

        [SetUp]
        public void Setup()
        {
            _networkMock = new Mock<ICommonGameNetworkControl>();
            _gameEngine = new GameEngine(_networkMock.Object);
        }

        [Test]
        public void IfNoSquareHaveValueThenNoWinner()
        {
            //Arrainge
            var board = new string[3,3] { {"","",""}, {"","",""},{"","",""}};
            var expected = "";

            //Act
            var result = _gameEngine.GetWinner(board);

            //Assert
            Assert.AreEqual(expected, result);
        }

        [Test]
        public void WhenTopRowIsAllXThenXWins()
        {
            //Arrainge
            var board = new string[3, 3] { { "X", "X", "X" }, { "", "", "" }, { "", "", "" } };
            var expected = "X";

            //Act
            var result = _gameEngine.GetWinner(board);

            //Assert
            Assert.AreEqual(expected, result);
        }

        [Test]
        public void ShouldBeAbleToLoginToNetwork()
        {
            //Arrainge
            var userName = "Bob";
            var password = "TicTacToeMaster";
            var expectedValue = Guid.NewGuid();

            _networkMock.Setup(x => x.Login(userName, password)).Returns(expectedValue);

            //Act
            var result = _gameEngine.Login(userName, password);

            //Assert
            Assert.AreEqual(expectedValue, result);
        }

        [Test]
        [ExpectedException(typeof(ArgumentException))]
        public void WhenUserNameIsEmptyLoginShouldThrowArgumentException()
        {
            //Arrainge
            var userName = "";
            var password = "TicTacToeMaster";
            var expectedValue = Guid.NewGuid();

            _networkMock.Setup(x => x.Login(userName, password)).Returns(Guid.Empty);

            //Act
            var result = _gameEngine.Login(userName, password);

            //Assert
            Assert.AreEqual(expectedValue, result);

        }
    }
}