using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Diagnostics;
using System.Linq;
using System.Net;
using System.Text;
using System.Text.Json.Serialization;
using System.Threading.Tasks;
using System.Timers;
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 WeatherApp.Properties;

namespace WeatherApp
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        private Timer _refreshTimer;
        private Timer _timeTimer;
        private string _location = "koyo";

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

        private void InitInstance()
        {
            if (Settings.Default["Location"] != null && !string.IsNullOrEmpty(Settings.Default["Location"].ToString()))
                _location = Settings.Default["Location"].ToString();

            tbxLocation.Text = _location;

            GetWeatherInfo();

            _refreshTimer = new Timer();
            _refreshTimer.Interval = 60 * 1000;
            _refreshTimer.Elapsed += _refreshTimer_Elapsed;
            _refreshTimer.Start();

            _timeTimer = new Timer();
            _timeTimer.Interval = 1000;
            _timeTimer.Elapsed += _timeTimer_Elapsed;
            _timeTimer.Start();
        }

        private void _timeTimer_Elapsed(object? sender, ElapsedEventArgs e)
        {
            Application.Current.Dispatcher.Invoke(() =>
            {
                tbTime.Text = DateTime.Now.ToString("yyyy-MM-dd tt hh:mm:ss");
            });
        }

        private void _refreshTimer_Elapsed(object? sender, ElapsedEventArgs e)
        {
            GetWeatherInfo();
        }

        private void SetFontColor(Brush brush)
        {
            tbLocation.Foreground = brush;
            tbTime.Foreground = brush;
        }

        private void GetWeatherInfo()
        {
            using (WebClient client = new WebClient())
            {
                try
                {
                    string res = client.DownloadString(@$"https://api.openweathermap.org/data/2.5/weather?q={_location}&APPID=");
                    WeatherResponse weatherResponse = JsonConvert.DeserializeObject<WeatherResponse>(res);

                    Application.Current.Dispatcher.Invoke(() =>
                    {
                        BitmapImage image = new BitmapImage();
                        image.BeginInit();
                        image.UriSource = new Uri(@$"https://openweathermap.org/img/wn/{weatherResponse.Weather[0].Icon}.png");
                        image.EndInit();
                        imgWeather.Source = image;

                        tbLocation.Text = _location.ToUpper();
                        tbTime.Text = DateTime.Now.ToString("yyyy-MM-dd tt hh:mm:ss");
                    });
                }
                catch (Exception ex)
                {
                    Debug.WriteLine(ex.Message);
                }
            }
        }

        private void Window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (e.LeftButton == MouseButtonState.Pressed)
                DragMove();
        }

        private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            Settings.Default["WindowLeft"] = this.Left;
            Settings.Default["WindowTop"] = this.Top;
            Settings.Default.Save();
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            this.Left = (double)Settings.Default["WindowLeft"];
            this.Top = (double)Settings.Default["WindowTop"];
            
            if (Settings.Default["FontColor"] == null || Settings.Default["FontColor"].ToString() == "Black")
                SetFontColor(Brushes.Black);
            else
                SetFontColor(Brushes.White);
        }

        private void Exit_MenuItem_Click(object sender, RoutedEventArgs e)
        {
            Application.Current.Shutdown();
        }

        private void ColorReverse_MenuItem_Click(object sender, RoutedEventArgs e)
        {
            if (tbLocation.Foreground == Brushes.Black)
            {
                SetFontColor(Brushes.White);
                Settings.Default["FontColor"] = "White";
            }
            else
            {
                SetFontColor(Brushes.Black);
                Settings.Default["FontColor"] = "Black";
            }

            Settings.Default.Save();
        }

        private void tbxLocation_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key != Key.Enter)
                return;

            if (tbxLocation == null || string.IsNullOrEmpty(tbxLocation.Text))
                return;
            
            _location = tbxLocation.Text;
            Settings.Default["Location"] = tbxLocation.Text;

            GetWeatherInfo();
        }
    }
}