using Avalonia.Controls;
using Avalonia.Interactivity;
using Demka_Snova_1.Hardik.Conect;
using Demka_Snova_1.Hardik.Conect.Dao;
using Demka_Snova_1.OknaRoley;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Demka_Snova_1.OknaFunciy;

public partial class SotrudnikiWindow : Window
{
    private List<SotrudnikDao> _sotrudnikiList;
    private List<historyDao> _activityList;

    public SotrudnikiWindow()
    {
        InitializeComponent();
        this.DataContext = new SotrudnikDao();
        this.FindControl<DataGrid>("SotrudnikiDataGrid").ItemsSource = _sotrudnikiList;
    }

    private async Task LoadSotrudnikiAsync()
    {
        try
        {
            using (var db = new DatabaseConnection())
            {
                _sotrudnikiList = db.GetAllSotrudniki();
                _activityList = db.GetAllHistory();
                this.FindControl<DataGrid>("SotrudnikiDataGrid").ItemsSource = _sotrudnikiList;
                this.FindControl<DataGrid>("HistoryDataGrid").ItemsSource = _activityList;
            }
        }
        catch (Exception ex)
        {
            await ShowErrorDialog($"Ошибка при загрузке данных: {ex.Message}");
        }
    }

    private async void AddSotrudnik(object sender, RoutedEventArgs e)
    {
        var addWindow = new AddSotrudnikWindow();
        var result = await addWindow.ShowDialog<SotrudnikDao>(this);

        if (result != null)
        {
            try
            {
                using (var db = new DatabaseConnection())
                {
                    result.ID = _sotrudnikiList.Count > 0 ? _sotrudnikiList.Max(s => s.ID) + 1 : 1;
                    db.AddSotrudnik(result);
                    await LoadSotrudnikiAsync();
                }
            }
            catch (Exception ex)
            {
                await ShowErrorDialog($"Ошибка при добавлении сотрудника: {ex.Message}");
            }
        }
    }

    private async void DeleteSotrudnik(object sender, RoutedEventArgs e)
    {
        var selected = GetSelectedSotrudnik();
        if (selected != null)
        {
            try
            {
                using (var db = new DatabaseConnection())
                {
                    db.DeleteSotrudnik(selected.ID);
                    await LoadSotrudnikiAsync();
                }
            }
            catch (Exception ex)
            {
                await ShowErrorDialog($"Ошибка при удалении сотрудника: {ex.Message}");
            }
        }
        else
        {
            await ShowErrorDialog("Выберите сотрудника для удаления.");
        }
    }

    private SotrudnikDao GetSelectedSotrudnik()
    {
        return this.FindControl<DataGrid>("SotrudnikiDataGrid").SelectedItem as SotrudnikDao;
    }

    private async void ChangeRole(object sender, RoutedEventArgs e)
    {
        var selected = GetSelectedSotrudnik();
        if (selected != null)
        {
            var roleWindow = new ChangeRoleWindow(selected);
            var result = await roleWindow.ShowDialog<SotrudnikDao>(this);

            if (result != null)
            {
                try
                {
                    using (var db = new DatabaseConnection())
                    {
                        db.UpdateSotrudnik(result);
                        await LoadSotrudnikiAsync();
                    }
                }
                catch (Exception ex)
                {
                    await ShowErrorDialog($"Ошибка при изменении роли: {ex.Message}");
                }
            }
        }
        else
        {
            await ShowErrorDialog("Выберите сотрудника для изменения роли.");
        }
    }

    private void Exitka(object sender, RoutedEventArgs e)
    {
        new AdminWindow().Show();
        this.Close();
    }

    private async void ViewActivity(object sender, RoutedEventArgs e)
    {
        var activityWindow = new ActivityWindow(_activityList);
        await activityWindow.ShowDialog(this);
    }

    private async Task ShowErrorDialog(string message)
    {
        var dialog = new Window
        {
            Title = "Ошибка",
            Content = new TextBlock { Text = message },
            Width = 300,
            Height = 200,
            WindowStartupLocation = WindowStartupLocation.CenterScreen
        };

        await dialog.ShowDialog(this);
    }
}