#define HAS_WIFI

using Iot.Device.Ssd13xx;
using nanoFramework.Hardware.Esp32;
using nanoFramework.Networking;
using System;
using System.Device.I2c;
using System.Diagnostics;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Threading;

namespace NFApp1
{
    public class Program
    {
        private static Ssd1306 device;
        private static HttpClient _httpClient;
        public static void Main()
        {
            Debug.WriteLine("Waiting for network up, IP address and valid date & time...");

            bool success;
            CancellationTokenSource cs = new(60000);

            // if the device doesn't have the Wifi credentials stored
            success = WifiNetworkHelper.ConnectDhcp(Settings.WifiNetworkName, Settings.WifiNetworkPasswork, requiresDateTime: true, token: cs.Token);


            if (!success)
            {
                Debug.WriteLine($"Can't get a proper IP address and DateTime, error: {NetworkHelper.Status}.");
                if (NetworkHelper.HelperException != null)
                {
                    Debug.WriteLine($"Exception: {NetworkHelper.HelperException}");
                }
                return;
            }

            while (true)
            {
                _httpClient = new HttpClient
                {
                    BaseAddress = new Uri(Settings.AzurePortal)
                };

                Debug.WriteLine($"Getting data from: {_httpClient.BaseAddress.AbsoluteUri}");

                var response = _httpClient.Get(Settings.AzureFunction);

                Debug.WriteLine(response.Content.ReadAsString());

                //LCD ========================
                //configure the I2C GPIOs            
                Configuration.SetPinFunction(Settings.DisplayDataPpin, DeviceFunction.I2C1_DATA);
                Configuration.SetPinFunction(Settings.DisplayClockPin, DeviceFunction.I2C1_CLOCK);
                //Init LCD
                device = new Ssd1306(I2cDevice.Create(new I2cConnectionSettings(1, Ssd1306.DefaultI2cAddress)), Ssd13xx.DisplayResolution.OLED128x64);
                device.ClearScreen();
                device.Font = new BasicFont();
                device.DrawString(0, 0, "channel:", 1, true);//centered text
                device.DrawString(0, 14, Settings.ChannelName, 2);//large size 2 font
                device.DrawString(0, 49, response.Content.ReadAsString(), 2, true);//centered text
                device.Display();

                _httpClient.Dispose();

                Thread.Sleep(1000 * 60 * 60);
            }
        }
    }


    public static class Settings
    {
        public const string ChannelName = "lunokhod1";
        public const string ApiKey = "";
        public const int DisplayDataPpin = 5;
        public const int DisplayClockPin = 4;
        public const string WifiNetworkName = "";
        public const string WifiNetworkPasswork = "";

        public const string ChannelId = "";
        public const string YouTubeApiKey = "";
        public const string AzureFunctionKey = "";

        public static string Url
            => $"https://www.googleapis.com/youtube/v3/channels?part=statistics&id={ChannelId}&fields=items/statistics/subscriberCount&key={YouTubeApiKey}";

        public const string AzurePortal = "http://getyoutubecounter20220619202622.azurewebsites.net";

        public static string AzureFunction => $"/api/Counter?code={AzureFunctionKey}";
    }
}