using System.Threading.Tasks;

using Avalonia.Threading;

using CommunityToolkit.Mvvm.ComponentModel;

namespace SourceGit.ViewModels
{
    public class Statistics : ObservableObject
    {
        public bool IsLoading
        {
            get => _isLoading;
            private set => SetProperty(ref _isLoading, value);
        }

        public int SelectedIndex
        {
            get => _selectedIndex;
            set
            {
                if (SetProperty(ref _selectedIndex, value)) RefreshReport();
            }
        }

        public Models.StatisticsReport SelectedReport
        {
            get => _selectedReport;
            private set => SetProperty(ref _selectedReport, value);
        }

        public Statistics(string repo)
        {
            _repo = repo;

            Task.Run(() =>
            {
                var result = new Commands.Statistics(_repo).Result();
                Dispatcher.UIThread.Invoke(() =>
                {
                    _data = result;
                    RefreshReport();
                    IsLoading = false;
                });
            });
        }

        private void RefreshReport()
        {
            if (_data == null) return;

            switch (_selectedIndex)
            {
                case 0: SelectedReport = _data.Year; break;
                case 1: SelectedReport = _data.Month; break;
                default: SelectedReport = _data.Week; break;
            }
        }

        private readonly string _repo = string.Empty;
        private bool _isLoading = true;
        private Models.Statistics _data = null;
        private Models.StatisticsReport _selectedReport = null;
        private int _selectedIndex = 0;
    }
}