using System;
using System.Linq;
using HeuristicLab.Services.Hive.Common.DataTransfer;
using HeuristicLab.Services.Hive.Common.ServiceContracts;
using HeuristicLab.Services.Hive.DataAccess;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace HeuristicLab.Services.Hive.Tests {
  using System.Threading;
  using DT = HeuristicLab.Services.Hive.Common.DataTransfer;

  [TestClass]
  public class DaoTests {

    [ClassInitialize]
    public static void MyClassInitialize(TestContext testContext) {
      PluginLoader.pluginAssemblies.Any();
      ServiceLocator.Instance = new MockServiceLocator(ServiceLocator.Instance);
    }

    private IHiveService GetLocalService() {
      return new HiveService();
    }

    [TestMethod]
    public void TestJobDao() {
      IHiveDao dao = ServiceLocator.Instance.HiveDao;

      DT.Job job1 = new DT.Job();
      job1.State = JobState.Offline;
      job1.StateLog.Add(new DT.StateLog { State = JobState.Offline, DateTime = DateTime.Now });
      job1.Command = Command.Pause;

      DT.JobData jobData1 = new DT.JobData();
      jobData1.Data = new byte[] { 0, 1, 2, 3, 4, 5 };
      jobData1.LastUpdate = DateTime.Now;

      DT.Plugin plugin1 = new DT.Plugin();
      plugin1.Name = "Tests.MyPlugin";
      plugin1.Version = new Version("1.0.0.0");
      plugin1.UserId = Guid.Empty;
      plugin1.IsLocal = true;
      plugin1.DateCreated = DateTime.Now;

      DT.PluginData pluginData1 = new DT.PluginData();
      pluginData1.PluginId = plugin1.Id;
      pluginData1.FileName = "Tests.MyPlugin-1.0.dll";
      pluginData1.Data = new byte[] { 0, 1, 2, 3, 4, 5 };

      plugin1.Id = dao.AddPlugin(plugin1);
      pluginData1.PluginId = plugin1.Id;
      pluginData1.Id = dao.AddPluginData(pluginData1);

      job1.PluginsNeededIds.Add(plugin1.Id);

      job1.Id = dao.AddJob(job1);
      jobData1.JobId = job1.Id;
      dao.AddJobData(jobData1);

      DT.Job job1loaded = dao.GetJob(job1.Id);
      Assert.AreEqual(job1.Id, job1loaded.Id);
      Assert.AreEqual(job1.CoresNeeded, job1loaded.CoresNeeded);
      Assert.AreEqual(job1.DateCreated.ToString(), job1loaded.DateCreated.ToString());
      Assert.AreEqual(null, job1loaded.DateFinished);
      Assert.IsTrue(job1.PluginsNeededIds.SequenceEqual(job1loaded.PluginsNeededIds));
      Assert.AreEqual(job1.StateLog.Count, job1loaded.StateLog.Count);
      Assert.AreEqual(job1.Command, job1loaded.Command);
      Assert.IsTrue(Math.Abs((job1loaded.LastJobDataUpdate - jobData1.LastUpdate).TotalSeconds) < 1);
      for (int i = 0; i < job1.StateLog.Count; i++) {
        Assert.AreEqual(job1.Id, job1loaded.StateLog[i].JobId);
        Assert.AreEqual(job1.StateLog[i].State, job1loaded.StateLog[i].State);
        Assert.AreEqual(job1.StateLog[i].SlaveId, job1loaded.StateLog[i].SlaveId);
        Assert.AreEqual(job1.StateLog[i].UserId, job1loaded.StateLog[i].UserId);
        Assert.AreEqual(job1.StateLog[i].Exception, job1loaded.StateLog[i].Exception);
        Assert.IsTrue(Math.Abs((job1.StateLog[i].DateTime - job1loaded.StateLog[i].DateTime).TotalSeconds) < 1);
      }
      
      job1 = job1loaded;

      // test jobstates
      job1.StateLog.Add(new DT.StateLog { State = JobState.Transferring, DateTime = DateTime.Now }); Thread.Sleep(10);
      job1.StateLog.Add(new DT.StateLog { State = JobState.Calculating, DateTime = DateTime.Now }); Thread.Sleep(10);
      job1.StateLog.Add(new DT.StateLog { State = JobState.Transferring, DateTime = DateTime.Now }); Thread.Sleep(10);
      job1.StateLog.Add(new DT.StateLog { State = JobState.Finished, DateTime = DateTime.Now }); Thread.Sleep(10);
      dao.UpdateJob(job1);

      job1loaded = dao.GetJob(job1.Id);
      for (int i = 0; i < job1.StateLog.Count; i++) {
        Assert.AreEqual(job1.Id, job1loaded.StateLog[i].JobId);
        Assert.AreEqual(job1.StateLog[i].State, job1loaded.StateLog[i].State);
        Assert.AreEqual(job1.StateLog[i].SlaveId, job1loaded.StateLog[i].SlaveId);
        Assert.AreEqual(job1.StateLog[i].UserId, job1loaded.StateLog[i].UserId);
        Assert.AreEqual(job1.StateLog[i].Exception, job1loaded.StateLog[i].Exception);
        Assert.IsTrue(Math.Abs((job1.StateLog[i].DateTime - job1loaded.StateLog[i].DateTime).TotalSeconds) < 1);
      }

      DT.JobData jobData1Loaded = dao.GetJobData(job1.Id);
      Assert.AreEqual(jobData1.JobId, jobData1Loaded.JobId);
      Assert.IsTrue(Math.Abs((jobData1.LastUpdate - jobData1Loaded.LastUpdate).TotalSeconds) < 1);
      Assert.IsTrue(jobData1.Data.SequenceEqual(jobData1Loaded.Data));
      
      dao.DeleteJob(job1.Id);

      Assert.AreEqual(null, dao.GetJob(job1.Id));
      Assert.AreEqual(null, dao.GetJobData(job1.Id));
    }

    [TestMethod]
    public void TestSlaveDao() {
      IHiveDao dao = ServiceLocator.Instance.HiveDao;
      DT.SlaveGroup slaveGroup = new DT.SlaveGroup() {
        Name = "Test"
      };
      slaveGroup.Id = dao.AddSlaveGroup(slaveGroup);

      DT.Slave slave = new DT.Slave() {
        Id = Guid.NewGuid(),
        Name = "Test",
        OperatingSystem = null, //"Windows 3.11",
        Cores = 2,
        Memory = 1024,
        FreeMemory = 512
      };

      Assert.AreEqual(slave.Id, dao.AddSlave(slave));

      // update
      slave.FreeMemory = 255;
      slave.OperatingSystem = Environment.OSVersion.VersionString;
      dao.UpdateSlave(slave);

      DT.Slave slaveLoaded = dao.GetSlave(slave.Id);
      Assert.AreEqual(slave.FreeMemory, slaveLoaded.FreeMemory);

      dao.DeleteSlave(slave.Id);
      dao.DeleteSlaveGroup(slaveGroup.Id);
    }

    [TestMethod]
    public void TestPluginDao() {
      IHiveDao dao = ServiceLocator.Instance.HiveDao;

      DT.Plugin plugin1 = new DT.Plugin();
      plugin1.DateCreated = DateTime.Now;
      plugin1.IsLocal = false;
      plugin1.Name = "Tests.MyPlugin";
      plugin1.Version = new Version("1.0.0.0");
      plugin1.UserId = Guid.Empty;

      plugin1.Id = dao.AddPlugin(plugin1);

      DT.Plugin plugin1loaded = dao.GetPlugin(plugin1.Id);
      Assert.AreEqual(plugin1.Id, plugin1loaded.Id);
      Assert.AreEqual(plugin1.Name, plugin1loaded.Name);
      Assert.AreEqual(plugin1.Version, plugin1loaded.Version);
      Assert.AreEqual(plugin1.UserId, plugin1loaded.UserId);
      Assert.AreEqual(plugin1.DateCreated.ToString(), plugin1loaded.DateCreated.ToString());
      Assert.AreEqual(plugin1.IsLocal, plugin1loaded.IsLocal);

      DT.PluginData pluginData1 = new DT.PluginData();
      pluginData1.PluginId = plugin1.Id;
      pluginData1.FileName = "Tests.MyPlugin-1.0.dll";
      pluginData1.Data = new byte[] { 0, 1, 2, 3, 4, 5 };

      pluginData1.Id = dao.AddPluginData(pluginData1);

      DT.PluginData pluginData1loaded = dao.GetPluginData(pluginData1.Id);
      Assert.AreEqual(pluginData1.Id, pluginData1loaded.Id);

      Assert.AreEqual(pluginData1.PluginId, pluginData1loaded.PluginId);
      Assert.AreEqual(pluginData1.FileName, pluginData1loaded.FileName);
      Assert.IsTrue(pluginData1.Data.SequenceEqual(pluginData1loaded.Data));

      dao.DeletePluginData(pluginData1.Id);
      dao.DeletePlugin(plugin1.Id);

      Assert.AreEqual(null, dao.GetPlugin(plugin1.Id));
      Assert.AreEqual(null, dao.GetPluginData(pluginData1.Id));
    }

    [TestMethod]
    public void TestHiveExperimentDao() {
      IHiveDao dao = ServiceLocator.Instance.HiveDao;

      DT.HiveExperiment he = new DT.HiveExperiment();

      DT.Job job = new DT.Job();
      job.State = JobState.Offline;
      job.StateLog.Add(new DT.StateLog { State = JobState.Offline, DateTime = DateTime.Now });
      job.Id = dao.AddJob(job);

      he.RootJobId = job.Id;
      he.DateCreated = DateTime.Now;
      he.Name = "TestExperiment";
      he.OwnerUserId = Guid.NewGuid();
      he.ResourceNames = "HEAL";

      he.Id = dao.AddHiveExperiment(he);

      DT.HiveExperimentPermission perm = new DT.HiveExperimentPermission();
      perm.HiveExperimentId = he.Id;
      perm.GrantedByUserId = he.OwnerUserId;
      perm.GrantedUserId = Guid.NewGuid();
      perm.Permission = Permission.Write;
      dao.AddHiveExperimentPermission(perm);

      DT.HiveExperiment heLoaded = dao.GetHiveExperiment(he.Id);
      Assert.AreEqual(he.Id, heLoaded.Id);
      Assert.AreEqual(he.Name, heLoaded.Name);
      Assert.AreEqual(he.ResourceNames, heLoaded.ResourceNames);
      Assert.AreEqual(he.RootJobId, heLoaded.RootJobId);
      //Assert.AreEqual(he.LastAccessed, heLoaded.LastAccessed);
      //Assert.AreEqual(he.DateCreated, heLoaded.DateCreated);

      DT.Job jobLoaded = dao.GetJob(he.RootJobId);
      Assert.AreEqual(job.Id, jobLoaded.Id);
      Assert.AreEqual(job.State, jobLoaded.State);

      DT.HiveExperimentPermission permLoaded = dao.GetHiveExperimentPermission(he.Id, perm.GrantedUserId);
      Assert.AreEqual(perm.HiveExperimentId, permLoaded.HiveExperimentId);
      Assert.AreEqual(perm.GrantedUserId, permLoaded.GrantedUserId);
      Assert.AreEqual(perm.GrantedByUserId, permLoaded.GrantedByUserId);
      Assert.AreEqual(perm.Permission, permLoaded.Permission);

      dao.DeleteHiveExperiment(he.Id);
      Assert.AreEqual(null, dao.GetHiveExperiment(he.Id));
      Assert.AreEqual(null, dao.GetJob(he.RootJobId));
      Assert.AreEqual(null, dao.GetHiveExperimentPermission(perm.HiveExperimentId, perm.GrantedUserId));

    }
  }
}