using Avalonia.Controls;
using LehrerApp.Core.Interfaces;
using LehrerApp.Core.Models;
using LehrerApp.Desktop.ViewModels.Groups;
using LehrerApp.Desktop.ViewModels.Students;
using LehrerApp.Desktop.Views.Shared;
using LehrerApp.Desktop.Views.Students;
using Microsoft.Extensions.DependencyInjection;

namespace LehrerApp.Desktop.Views.Groups;

public partial class GroupDocumentationTabView : UserControl
{
    public GroupDocumentationTabView() => InitializeComponent();

    protected override void OnDataContextChanged(EventArgs e)
    {
        base.OnDataContextChanged(e);
        if (DataContext is not GroupDocumentationTabViewModel vm) return;
        vm.OnEditDocumentation = ShowDocumentationDialog;
        vm.OnConfirmDeleteDocumentation = ShowDeleteDocumentationDialog;
        vm.OnConductParentCall = ShowParentCallSessionDialog;
    }

    private async Task<Documentation?> ShowDocumentationDialog(
        Guid groupId, List<StudentOption> studentOptions, Documentation? editing)
    {
        var owner = TopLevel.GetTopLevel(this) as Window;
        if (owner is null) return null;

        var vm = new DocumentationDialogViewModel(editing?.StudentId ?? Guid.Empty, editing,
            App.Services.GetRequiredService<IAttachmentStorage>(), studentOptions, groupId);
        var dialog = new DocumentationDialog { DataContext = vm };
        var saved = await dialog.ShowDialog<bool>(owner);
        if (!saved) vm.DiscardUnsavedAttachments();
        return saved ? vm.Result : null;
    }

    private async Task<Documentation?> ShowParentCallSessionDialog(Documentation documentation, string studentTitle)
    {
        var owner = TopLevel.GetTopLevel(this) as Window;
        if (owner is null) return null;

        var vm = new ParentCallSessionViewModel(documentation, studentTitle);
        var dialog = new ParentCallSessionDialog { DataContext = vm };
        var saved = await dialog.ShowDialog<bool>(owner);
        return saved ? vm.Result : null;
    }

    private async Task<bool> ShowDeleteDocumentationDialog(DocumentationItem item)
    {
        var info = new ConfirmDialogInfo
        {
            Title       = "Eintrag löschen?",
            Message     = $"\"{item.Model.Title}\" ({item.StudentName}) wird als gelöscht markiert und nicht mehr angezeigt.",
            ConfirmText = "Löschen",
        };
        var dialog = new ConfirmDialog { DataContext = info };
        var owner = TopLevel.GetTopLevel(this) as Window;
        return owner is not null && await dialog.ShowDialog<bool>(owner);
    }
}