using AddressBook_MVVMSample.Command;
using AddressBook_MVVMSample.Model;
using AddressBook_MVVMSample.SubWindow;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace AddressBook_MVVMSample
{
    /// <summary>
    /// MainWindow.xaml에 대한 상호 작용 논리
    /// </summary>
    public partial class MainWindow : Window, INotifyPropertyChanged
    {
        public DelegateCommand AddCommand { get; set; }
        public DelegateCommand DeleteCommand { get; set; }
        public DelegateCommand ModiftyCommand { get; set; }
        public DelegateCommand ExitCommand { get; set; }

        public ObservableCollection<Person> Persons { get; set; }

        public event PropertyChangedEventHandler PropertyChanged;

        public MainWindow()
        {
            InitializeComponent();

            InitInstance();
        }

        private void InitInstance()
        {
            this.DataContext = this;

            this.Persons = new ObservableCollection<Person>();
            this.Persons.Add(new Person() { Name = "James", Gender = true, PhoneNumber = "123-456-7890", Address = "NewYork" });
            this.Persons.Add(new Person() { Name = "Thomas", Gender = true, PhoneNumber = "234-456-7890", Address = "Callifornia" });
            this.Persons.Add(new Person() { Name = "Richard", Gender = true, PhoneNumber = "345-456-7890", Address = "Seoul" });
            this.Persons.Add(new Person() { Name = "Sally", Gender = false, PhoneNumber = "456-456-7890", Address = "Beijing" });

            this.AddCommand = new DelegateCommand(CommandAddAction);
            this.DeleteCommand = new DelegateCommand(CommandDeleteAction);
            this.ModiftyCommand = new DelegateCommand(CommandModifyAction);
            this.ExitCommand = new DelegateCommand(CommandExitAction);
        }

        private int _selectedIndex;
        public int SelectedIndex
        {
            get { return _selectedIndex; }
            set
            {
                _selectedIndex = value;
                OnPropertyChanged(nameof(SelectedIndex));
            }
        }

        private void CommandAddAction(object obj)
        {
            AddViewWindow add = new AddViewWindow();
            if (add.ShowDialog() != true)
                return;

            this.Persons.Add(add.PersonData);
        }        

        private void CommandDeleteAction(object obj)
        {
            if (this.SelectedIndex < 0)
            {
                MessageBox.Show("No selected data.", "Address Book v0.1", MessageBoxButton.OK, MessageBoxImage.Information);
                return;
            }

            this.Persons.RemoveAt(this.SelectedIndex);
        }

        private void CommandModifyAction(object obj)
        {
            if (this.SelectedIndex < 0)
            {
                MessageBox.Show("No selected data.", "Address Book v0.1", MessageBoxButton.OK, MessageBoxImage.Information);
                return;
            }

            Person selectedData = this.Persons[this.SelectedIndex];
            Person modifiedData = new Person(selectedData);

            AddViewWindow modify = new AddViewWindow(modifiedData, AddViewWindow.ViewType.Modify);
            if (modify.ShowDialog() != true) 
                return;

            //this.Persons[this.SelectedIndex] = modifiedData;
            selectedData = modifiedData;
        }

        private void CommandExitAction(object obj)
        {
            this.Close();
        }

        private void OnPropertyChanged([CallerMemberName] string propertyName = null)
        {
            this.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}