using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using IPClab1.Models;
using IPClab1.ViewModels;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Controls;
using Microsoft.UI.Xaml.Controls.Primitives;
using Microsoft.UI.Xaml.Data;
using Microsoft.UI.Xaml.Input;
using Microsoft.UI.Xaml.Media;
using Microsoft.UI.Xaml.Navigation;
using Windows.Foundation;
using Windows.Foundation.Collections;

// To learn more about WinUI, the WinUI project structure,
// and more about our project templates, see: http://aka.ms/winui-project-info.

namespace IPClab1;
/// <summary>
/// An empty window that can be used on its own or navigated to within a Frame.
/// </summary>
public sealed partial class MainWindow : Window
{
    private readonly DispatcherTimer timer = new() { Interval = TimeSpan.FromMilliseconds(100) };

    public MainWindowViewModel ViewModel;
    public MainWindow(MainWindowViewModel viewModel)
    {
        InitializeComponent();
        ViewModel = viewModel;
        ExtendsContentIntoTitleBar = true;
        SetTitleBar(AppTitleBar);
        timer.Tick += Timer_Tick;
        timer.Start();
    }

    private void Timer_Tick(object? sender, object e)
    {
        AppTitleBar.Title = Title;
        ViewModel.RefreshInfo();
    }

    private void GridView_SizeChanged(object sender, SizeChangedEventArgs e)
    {
        var gridView = sender as GridView;
        double availableWidth = e.NewSize.Width - gridView.Padding.Left - gridView.Padding.Right;

        double minItemWidth = 250; // The absolute minimum width you want an item to be
        double baseSpacing = 8;   // Your baseline gap width

        // Calculate how many columns can mathematically fit
        int columns = (int)Math.Floor((availableWidth + baseSpacing) / (minItemWidth + baseSpacing));
        columns = Math.Max(1, columns); // Ensure at least 1 column

        // Dynamically calculate the item width to absorb the remaining space
        double dynamicWidth = ((availableWidth + baseSpacing) / columns) - baseSpacing;

        if (WindowGrid.ItemsPanelRoot is ItemsWrapGrid wrapGrid)
        {
            wrapGrid.ItemWidth = dynamicWidth;
        }
    }

    private void WindowGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        if (e.AddedItems.Count > 0) ViewModel.SelectedWindow = (WindowInfo)e.AddedItems[0];
    }

    private void RowContent_SizeChanged(object sender, SizeChangedEventArgs e)
    {
        // 1. Get the actual natural height of the content in both rows
        // (Assuming the direct children of Row 0 and Row 1 are FrameworkElements)
        double row0Height = ((FrameworkElement)ActionsGrid.Children[0]).ActualHeight;
        double row1Height = ((FrameworkElement)ActionsGrid.Children[1]).ActualHeight;
        double row2Height = ((FrameworkElement)ActionsGrid.Children[2]).ActualHeight;
        double row3Height = ((FrameworkElement)ActionsGrid.Children[3]).ActualHeight;

        // 2. Find which one is larger
        double maxHeight = Math.Max(Math.Max(row0Height, row1Height), Math.Max(row2Height, row3Height));

        // 3. Force both rows to match the largest height
        ActionRow0.MinHeight = maxHeight;
        ActionRow1.MinHeight = maxHeight;

        // Note: Row 2 will automatically shrink to 0 height if Row 0 and Row 1 
        // consume the entire available height of the parent Grid.
    }

    private void CloseButton_Click(object sender, RoutedEventArgs e)
    {
        ViewModel.Windows.Remove((WindowInfo)WindowGrid.SelectedItem);
        WindowGrid.SelectedIndex = -1;
    }
}