using System;
using System.Collections.Generic;
using Avalonia.Controls;
using Microsoft.Data.Sqlite;

namespace ChronoFlow.View
{
    ///<summary>
    /// Verwaltet alle Views der Anwendung und wechselt sie bei Bedarf.
    /// </summary>

    public class ViewManager
    {
        private readonly ContentControl _targetControl;
        private readonly Dictionary<string, Func<UserControl>> _registieredViews = new();

        public ViewManager(ContentControl targetControl)
        {
            _targetControl = targetControl;
        }
        
        ///<summary>
        /// Registriert eine View mit einem Namen
        /// </summary>

        public void Show(string name, Func<UserControl> viewFactory)
        {
            _registieredViews[name] = viewFactory; 
        }

        ///<summary>
        /// Zeigt die View mit dem gegebenen Namen an.
        /// </summary>
        public void Show(string name)
        {
            if(_registieredViews.TryGetValue(name, out var factory))
                _targetControl.Content = factory();
            else
            {
                throw new InvalidOperationException($"View {name} is not registered");
            }
        }
        public void Register(string name, Func<UserControl> viewFactory)
        {
            _registieredViews[name] = viewFactory;
        }
        
    }
}