using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL;
using Tango.BL.Builders;
using Tango.BL.Entities;
using Tango.BL.Enumerations;
using Tango.Core.Commands;
using Tango.MachineStudio.Common;
using Tango.SharedUI.Components;

namespace Tango.MachineStudio.ActionLogs.ViewModels
{
    public class MainViewVM : StudioViewModel
    {
        private DateTime _startSelectedDate;
        public DateTime StartSelectedDate
        {
            get { return _startSelectedDate; }
            set { _startSelectedDate = value; RaisePropertyChangedAuto(); }
        }

        private DateTime _endSelectedDate;
        public DateTime EndSelectedDate
        {
            get { return _endSelectedDate; }
            set { _endSelectedDate = value; RaisePropertyChangedAuto(); }
        }

        private string _searchFilter;
        public string SearchFilter
        {
            get { return _searchFilter; }
            set { _searchFilter = value; RaisePropertyChangedAuto(); }
        }

        private ObservableCollection<ActionLog> _actionLogs;
        public ObservableCollection<ActionLog> ActionLogs
        {
            get { return _actionLogs; }
            set { _actionLogs = value; RaisePropertyChanged(nameof(ActionLogs)); }
        }

        private SelectedObjectCollection<ActionLogType> _selectedActionLogTypes;
        public SelectedObjectCollection<ActionLogType> SelectedActionLogTypes
        {
            get { return _selectedActionLogTypes; }
            set { _selectedActionLogTypes = value; RaisePropertyChanged(nameof(SelectedActionLogTypes)); }
        }

        public RelayCommand SearchCommand { get; set; }
        public RelayCommand CopyToClipBoardCommand { get; set; }

        public MainViewVM()
        {
            ActionLogs = new ObservableCollection<ActionLog>();
            SearchCommand = new RelayCommand(Search);
            CopyToClipBoardCommand = new RelayCommand(CopyToClipBoard);
            DateTime now = DateTime.Now; ;
            StartSelectedDate = now.AddMonths(-1);
            EndSelectedDate = now;

            var source = Enum.GetValues(typeof(ActionLogType)).Cast<ActionLogType>().ToObservableCollection();
            var syncedSource = Enum.GetValues(typeof(ActionLogType)).Cast<ActionLogType>().ToObservableCollection();

            SelectedActionLogTypes = new SelectedObjectCollection<ActionLogType>(source, syncedSource);

            //SelectedActionLogTypes.ToList().ForEach(x => x.IsSelected = true);
        }

        public override void OnApplicationReady()
        {

        }

        private void Search()
        {
            GetActionLogs();
        }
        private void CopyToClipBoard()
        {
        }
        private async void GetActionLogs()
        {
            string filter = SearchFilter?.ToLower();

            using (ObservablesContext db = ObservablesContext.CreateDefault())
            {
                ActionLogs = await new ActionLogsCollectionBuilder(db).Set(x => x.LastUpdated < EndSelectedDate && x.LastUpdated >= StartSelectedDate)
                    .WithUsers()
                    .WithActionType(SelectedActionLogTypes.SynchedSource.ToArray())
                    .Query(y => y.Where
                    (x => filter == null || 
                    (x.ID.ToString().ToLower().StartsWith(filter) 
                    || (x.RelatedObjectName != null && x.RelatedObjectName.ToLower().StartsWith(filter)) 
                    || (x.User != null && x.User.Contact != null && x.User.Contact.FullName.ToLower().StartsWith(filter)))))
                    .BuildAsync();
            }
        }
    }
}