using System;
using System.Collections.ObjectModel;
using System.Drawing;
using System.Windows;
using LinqToDB.Tools;
using Pf2e.Scrapper.Helpers;

namespace Pf2e.WPF.Progress;

/// <summary>
/// Логика взаимодействия для ProgressFormWpf.xaml
/// </summary>
internal partial class ProgressForm : Window
{
    public ProcessProgress Progress { get; }

    public ObservableCollection<ListViewRow> ViewRows { get; set; } = [];

    public ProgressForm(ProcessProgress progress)
    {
        Progress = progress;

        InitializeComponent();

        Progress.ProgressUpdate += Progress_ProgressUpdate;
        Progress.ProgressMessage += Progress_ProgressMessage;
        Progress.ProgressComplete += Progress_ProgressComplete;
    }

    private void Progress_ProgressUpdate(ProcessProgress sender)
    {
        if (!Dispatcher.CheckAccess())
        {
            Dispatcher.Invoke(() => Progress_ProgressUpdate(sender));
            return;
        }

        ProcessorsLabel.Content = sender.Processors.ToString();
        ProcessorsProgressBar.Maximum = sender.Processors.Count;
        ProcessorsProgressBar.Value = sender.Processors.Current;

        LocalLabel.Content = sender.Local.ToString();
        LocalProgressBar.Maximum = sender.Local.Count;
        LocalProgressBar.Value = sender.Local.Current;
    }

    private void Progress_ProgressMessage(ProcessProgress sender, LogLevel level, string message)
    {
        if (!Dispatcher.CheckAccess())
        {
            Dispatcher.Invoke(() => Progress_ProgressMessage(sender, level, message));
            return;
        }

        ListViewRow item = new(level, message) { IsVisible = true };

        ViewRows.Add(item);

        MessageListView.ScrollIntoView(item);
    }

    private void Progress_ProgressComplete(ProcessProgress sender)
    {
        ApplicationStateChange?.Invoke(this, ApplicationStage.Viewer);
    }

    public event ImportApplication.ApplicationStateChangeDelegate? ApplicationStateChange;
}

internal class ListViewRow(LogLevel level, string message)
{
    public string Time { get; } = DateTime.Now.ToString("HH:mm:ss.fff");

    public LogLevel Level { get; } = level;

    public string Message { get; } = message;

    public Color Color { get; } =
        level switch
        {
            LogLevel.Important => Color.Salmon,
            LogLevel.Warning => Color.Khaki,
            LogLevel.Information => Color.White,
            LogLevel.Progress => Color.LightGray,
            _ => Color.White,
        };

    public bool IsVisible { get; set; } = true;
}