using LiveCharts;
using LiveCharts.Defaults;
using LiveCharts.Wpf;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
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.Shapes;

namespace Tutorial
{
    /// <summary>
    /// FinancialWindow.xaml에 대한 상호 작용 논리
    /// </summary>
    public partial class FinancialWindow : Window, INotifyPropertyChanged
    {
        private string[] _labels;

        public SeriesCollection SeriesCollection { get; set; }
        public string[] Labels
        {
            get { return _labels; }
            set
            {
                _labels = value;
                OnPropertyChanged(nameof(Labels));
            }
        }

        public event PropertyChangedEventHandler? PropertyChanged;

        public FinancialWindow()
        {
            InitializeComponent();
            InitInstance();
        }


        private void InitInstance()
        {
            SeriesCollection = new SeriesCollection()
            {
                new OhlcSeries()
                {
                    Values = new ChartValues<OhlcPoint>()
                    {
                        new OhlcPoint(32, 35, 30, 32),
                        new OhlcPoint(33, 38, 31, 37),
                        new OhlcPoint(35, 42, 30, 40),
                        new OhlcPoint(37, 40, 35, 38),
                        new OhlcPoint(35, 38, 32, 33)
                    }
                },
                new LineSeries()
                {
                    Values = new ChartValues<double> {30, 32, 35, 30, 28},
                    Fill = Brushes.Transparent
                }
            };

            Labels = new string[]
            {
                DateTime.Now.ToString("dd MMM"),
                DateTime.Now.AddDays(1).ToString("dd MMM"),
                DateTime.Now.AddDays(2).ToString("dd MMM"),
                DateTime.Now.AddDays(3).ToString("dd MMM"),
                DateTime.Now.AddDays(4).ToString("dd MMM"),
            };

            DataContext = this;
        }

        protected virtual void OnPropertyChanged(string propertyName = null)
        {
            if (PropertyChanged != null) 
                PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

        private void btnUpdate_Click(object sender, RoutedEventArgs e)
        {
            Random rand = new Random();
            foreach (var point in SeriesCollection[0].Values.Cast<OhlcPoint>())
            {
                point.Open = rand.Next((int)point.Low, (int)point.High);
                point.Close = rand.Next((int)point.Low, (int)point.High);
            }
        }
    }
}