using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using Tango.BL;
using Tango.BL.Builders;
using Tango.BL.Entities;
using Tango.Core;
using Tango.Integration.Operation;
using Tango.Logging;
using Tango.PMR.Printing;
using Tango.PPC.Jobs.ViewModels;
using Tango.SharedUI;

namespace Tango.JobProgressTester.UI
{
    public class MainWindowVM : ViewModel
    {
        private DataSource _dataSource;

        private List<Job> _jobs;
        public List<Job> Jobs
        {
            get { return _jobs; }
            set { _jobs = value; RaisePropertyChangedAuto(); }
        }

        private Job _selectedJob;
        public Job SelectedJob
        {
            get { return _selectedJob; }
            set { _selectedJob = value; RaisePropertyChangedAuto(); OnSelectedJobChanged(); }
        }

        private Job _activeJob;
        public Job ActiveJob
        {
            get { return _activeJob; }
            set { _activeJob = value; RaisePropertyChangedAuto(); }
        }

        private JobProgressViewVM _jobProgressViewVM;
        public JobProgressViewVM JobProgressViewVM
        {
            get { return _jobProgressViewVM; }
            set { _jobProgressViewVM = value; RaisePropertyChangedAuto(); }
        }

        private JobHandler2 _jobHandler;
        public JobHandler2 JobHandler
        {
            get { return _jobHandler; }
            set { _jobHandler = value; RaisePropertyChangedAuto(); }
        }

        private double _progress;
        public double Progress
        {
            get { return _progress; }
            set { _progress = value; RaisePropertyChangedAuto(); OnProgressChanged(); }
        }

        public MainWindowVM()
        {
            Application.Current.MainWindow.ContentRendered += (_, __) => Init();
        }

        private async void Init()
        {
            LogManager.RegisterLogger(new VSOutputLogger());

            _dataSource = new DataSource()
            {
                Address = "localhost\\SQLPPC",
                Catalog = "Tango",
                IntegratedSecurity = true
            };

            try
            {
                IsFree = false;
                ObservablesContext.OverrideSettingsDataSource(_dataSource);

                using (ObservablesContext db = ObservablesContext.CreateDefault())
                {
                    Jobs = await db.Jobs.ToListAsync();
                }
            }
            catch (Exception ex)
            {
                ShowError(ex.FlattenMessage());
            }
            finally
            {
                IsFree = true;
            }
        }

        private async void OnSelectedJobChanged()
        {
            if (SelectedJob != null)
            {
                try
                {
                    IsFree = false;

                    using (ObservablesContext db = ObservablesContext.CreateDefault())
                    {
                        ActiveJob = await new JobBuilder(db)
                            .Set(SelectedJob)
                            .WithConfiguration()
                            .WithBrushStops()
                            .WithRML()
                            .WithSegments()
                            .WithUser()
                            .BuildAsync();

                        JobHandler = new JobHandler2(() => { }, ActiveJob, null, ActiveJob.Rml.GetActiveProcessGroup().ProcessParametersTables.First(), JobHandlerModes.SettingUp);

                        JobProgressViewVM = new JobProgressViewVM()
                        {
                            Job = ActiveJob,
                            RunningJobStatus = JobHandler.Status,
                        };

                        Progress = 0.1;
                    }
                }
                catch (Exception ex)
                {
                    ShowError(ex.FlattenMessage());
                }
                finally
                {
                    IsFree = true;
                }
            }
        }

        private void OnProgressChanged()
        {
            if(JobHandler != null)
            {
                JobHandler.RaiseStatusReceived(new JobStatus()
                {
                    Progress = Progress,
                });
            }
            
        }

        private void ShowError(String message)
        {
            MessageBox.Show(Application.Current.MainWindow, message, "Job Progress Tester", MessageBoxButton.OK, MessageBoxImage.Error);
        }
    }
}