using System;
using System.Collections.Generic;
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.Navigation;
using System.Windows.Shapes;
using System.Data;
using System.Text.RegularExpressions;
using System.Net.Http;
using Newtonsoft.Json;

namespace DynamicCurrencyConverter
{
    public partial class MainWindow : Window
    {
        root val = new root();

        public class root
        {
            public Rate rates { get; set; }
        }

        public class Rate
        {
            public double IDR { get; set; }
            public double JPY { get; set; }
            public double USD { get; set; }
            public double KRW { get; set; }
            public double HKD { get; set; }
            public double EUR { get; set; }
            public double KWD { get; set; }
        }

        public MainWindow()
        {
            InitializeComponent();
            GetValue();
        }

        //Mendapatkan data dari API
        private async void GetValue()
        {
            val = await GetDataGetMethod<root>("https://api.ratesapi.io/api/latest");
            Currency();
        }

        public static async Task<root> GetDataGetMethod<T>(string url)
        {
            var ss = new root();
            try
            {
                using (var client = new HttpClient())
                {
                    client.Timeout = TimeSpan.FromMinutes(1);
                    HttpResponseMessage response = await client.GetAsync(url);

                    if (response.StatusCode == System.Net.HttpStatusCode.OK)
                    {
                        var ResponceString = await response.Content.ReadAsStringAsync();
                        var ResponceObject = JsonConvert.DeserializeObject<root>(ResponceString);

                        return ResponceObject;
                    }
                    return ss;
                }
            }

            catch
            {
                return ss;
            }
        }

        private void Currency()
        {
            //Membuat tabel untuk memasukkan mata uang dan nilai currency 
            DataTable dataCurrency = new DataTable();

            //Membuat kolom pada tabel
            dataCurrency.Columns.Add("mataUang");
            dataCurrency.Columns.Add("Nilai");

            //Menambahkan data pada baris pada tabel
            dataCurrency.Rows.Add("IDR", val.rates.IDR);
            dataCurrency.Rows.Add("JPY", val.rates.JPY);
            dataCurrency.Rows.Add("USD", val.rates.USD);
            dataCurrency.Rows.Add("KRW", val.rates.KRW);
            dataCurrency.Rows.Add("HKD", val.rates.HKD);
            dataCurrency.Rows.Add("EUR", val.rates.EUR);
            dataCurrency.Rows.Add("KWD", val.rates.KWD);

            //Memasukkan data ke combo box From
            comboFrom.ItemsSource = dataCurrency.DefaultView;
            comboFrom.DisplayMemberPath = "mataUang";
            comboFrom.SelectedValuePath = "Nilai";

            //Memasukkan data ke combox box To
            comboTo.ItemsSource = dataCurrency.DefaultView;
            comboTo.DisplayMemberPath = "mataUang";
            comboTo.SelectedValuePath = "Nilai";
        }

        //Tombol Convert
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            //Kasus jika box Amount masih kosong
            if(textAmount.Text == null || textAmount.Text.Trim() == "")
            {
                MessageBox.Show("Please enter the amount You want to convert", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
                textAmount.Focus();
                return;
            }

            //Kasus jika combo box From masih kosong
            else if (comboFrom.Text == null || comboFrom.Text.Trim() == "")
            {
                MessageBox.Show("Please Choose The Currency You Want From", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
                comboFrom.Focus();
                return;
            }

            //Kasus jika combo box To masih kosong
            else if(comboTo.Text == null || comboTo.Text.Trim() == "")
            {
                MessageBox.Show("Please Choose The Currency You Want To Convert To", "Information", MessageBoxButton.OK, MessageBoxImage.Information);
                comboTo.Focus();
                return;
            }


            double ConvertedValue;

            //Kasus jika isi combo box From sama dengan isi combo box To
            if(comboFrom.Text == comboTo.Text)
            {
                ConvertedValue = double.Parse(textAmount.Text);
                textResult.Content = textAmount.Text + " " + comboFrom.Text + " " + " = " + ConvertedValue.ToString(".##") + " " + comboTo.Text;
            }

            //Jika semua sudah terisi maka dihitung seperti cara bawah
            else
            {
                ConvertedValue = double.Parse(comboTo.SelectedValue.ToString()) / double.Parse(comboFrom.SelectedValue.ToString()) * double.Parse(textAmount.Text);
                textResult.Content = textAmount.Text + " " + comboFrom.Text + " " + " = " + ConvertedValue.ToString(".##") + " " + comboTo.Text;
            }
        }
    }
}