using NUnit.Framework;
using System;
using System.Collections.Generic;
using TINK.Model.Logging;

namespace TestTINKLib.Fixtures.ObjectTests
{
    [TestFixture]
    public class TestLoggingDirectoryManager
    {
        [Test]
        public void TestConstructInvalidArgs()
        {
            Assert.Throws<ArgumentException>(
                () => new LoggingDirectoryManager(
                    (name) => new List<string> { "2018_02_06_22_18_00" /* oldest */, "2018_02_06_23_10_00" /*youngest*/ , "2018_02_06_22_19_00", "2018_02_06_22_20_00" },
                    (name) =>  false,
                    (name) => { },
                    (name) => { },
                    "abc",
                    '\\',
                    0));

            Assert.Throws<ArgumentException>(
                () => new LoggingDirectoryManager(
                    (name) => new List<string> { "2018_02_06_22_18_00" /* oldest */, "2018_02_06_23_10_00" /*youngest*/ , "2018_02_06_22_19_00", "20180206222000" },
                    (name) => false,
                    (name) => { },
                    (name) => { },
                    "",
                    '\\',
                    3));
        }

        [Test]
        public void TestDeleteObsoleteLogs()
        {
            var l_oDeletedFilesList = new List<string>();

            var l_oManger = new LoggingDirectoryManager(
                (name) => new List<string> { "2018_02_06_22_18_00" /* oldest */, "2018_02_06_23_10_00" /*youngest*/ , "2018_02_06_22_19_00", "20180206222000" },
                (name) => false,
                (name) => { },
                (name) => { l_oDeletedFilesList.Add(name); },
                "abc",
                '\\',
                3);

            l_oManger.DeleteObsoleteLogs();

            Assert.AreEqual(2, l_oDeletedFilesList.Count);
            Assert.IsTrue(l_oDeletedFilesList.Contains("2018_02_06_22_18_00"));
            Assert.IsTrue(l_oDeletedFilesList.Contains("2018_02_06_22_19_00"));
        }

        [Test]
        public void TestDeleteObsoleteLogs_EmptyDirectory()
        {
            var l_oDeletedFilesList = new List<string>();

            var l_oManger = new LoggingDirectoryManager(
                (name) => new List<string>(),
                (name) => false,
                (name) => { },
                (name) => { l_oDeletedFilesList.Add(name); },
                "abc",
                '\\',
                3);

            l_oManger.DeleteObsoleteLogs();

            Assert.AreEqual(0, l_oDeletedFilesList.Count);
        }
    }
}