Added user state (nested menus) and sub-menu to control different potential problems and system status

BotService.cs

@@ -15,11 +15,8 @@ namespace ZaoBot
 	{
 		private JsonDocument config;
 		static ITelegramBotClient botClient;
-		HttpClient http = new HttpClient();
-
-		const string CMD_WEATHER = "Погода";
-		const string CMD_LEFT_GATE = "Открой левые ворота";
-		const string CMD_RIGHT_GATE = "Открой правые ворота";
+		Dictionary<long, IUserState> userStates = new Dictionary<long, IUserState>();
+		private OpenHab.OpenHabClient openhab;
 
 		bool shouldRestart = false;
 
@@ -33,6 +30,7 @@ namespace ZaoBot
 			var token = config.RootElement.GetProperty("token").GetString();
 			shouldRestart = false;
 			botClient = new TelegramBotClient(token);
+			openhab = new OpenHab.OpenHabClient(config.RootElement.GetProperty("openhab_url").GetString());
 			var me = botClient.GetMeAsync().Result;
 			Console.WriteLine($"Hello, World! I am user {me.Id} and my name is {me.FirstName}.");
 			botClient.OnMessage += OnBotMessage;
@@ -49,53 +47,27 @@ namespace ZaoBot
 			{
 				if (e.Message.Text != null)
 				{
-					if (!VerifyUser(e.Message.Chat.Id, e.Message.Chat.Username))
+					var id = e.Message.Chat.Id;
+					IUserState state = null;
+					if (userStates.ContainsKey(id))
+					{
+						state = userStates[id];
+					}
+					if (state == null)
+					{
+						state = new MainMenuUserState(botClient, config, openhab);
+					}
+					state = await state.ProcessMessage(state, e);
+					if (state == null)
 					{
-						Console.WriteLine($"Received message {e.Message.Text} from invalid user {e.Message.Chat.Username}");
 						await botClient.SendTextMessageAsync(
 							chatId: e.Message.Chat,
-							text: "Ваш ID " + e.Message.Chat.Id + " сообщите его администратору"
+							text: "Я запутался, давайте сначала"
 						);
-						return;
+						state = new MainMenuUserState(botClient, config, openhab);
+						state = await state.ProcessMessage(state, e);
 					}
-					Console.WriteLine($"Received a text message in chat {e.Message.Chat.Id}.");
-
-					var response = "";
-					if (e.Message.Text == CMD_LEFT_GATE)
-					{
-						response = await OpenLeftGate();
-					}
-					else if (e.Message.Text == CMD_RIGHT_GATE)
-					{
-						response = await OpenRightGate();
-					}
-					else if (e.Message.Text == CMD_WEATHER)
-					{
-						response = await ShowWeather();
-					}
-					else if (e.Message.Text == "")
-					{
-						response = "Превед!";
-					}
-					else response = "Я не понял :-(";
-
-					if (e.Message.Text != "") response += "\nЧто дальше?";
-					else response = "\nЧего изволите?";
-
-					var replyKeyboardMarkup = new ReplyKeyboardMarkup(
-						new KeyboardButton[][]
-						{
-						new KeyboardButton[] { CMD_WEATHER },
-						new KeyboardButton[] { CMD_LEFT_GATE, CMD_RIGHT_GATE },
-						},
-						resizeKeyboard: true
-					);
-
-					await botClient.SendTextMessageAsync(
-					  chatId: e.Message.Chat,
-					  text: response,
-					  replyMarkup: replyKeyboardMarkup
-					);
+					userStates[id] = state;
 				}
 			}
 			catch (Exception ex)
@@ -106,90 +78,5 @@ namespace ZaoBot
 				shouldRestart = true;
 			}
 		}
-
-		private async Task<string> ShowWeather()
-		{
-			try
-			{
-				string response = "";
-				foreach (var element in config.RootElement.GetProperty("items_weather").EnumerateObject())
-				{
-					var url = config.RootElement.GetProperty("openhab_url").GetString();
-					url += element.Name;
-					var result = await http.GetAsync(url);
-					var content = await result.Content.ReadAsStringAsync();
-					response += element.Value + ": " + ParseContent(content) + "\n";
-				}
-				return response;
-			}
-			catch (Exception e)
-			{
-				return "Fail: " + e.Message;
-			}
-		}
-
-		private string ParseContent(string content)
-		{
-			var doc = JsonDocument.Parse(content);
-			float value;
-			if (!float.TryParse(doc.RootElement.GetProperty("state").GetString(), out value))
-			{
-				return "null";
-			}
-			try
-			{
-				var stateDescription = doc.RootElement.GetProperty("stateDescription");
-				var pattern = stateDescription.GetProperty("pattern");
-				return printf.Printf.sprintf(pattern.GetString(), value);
-			}
-			catch (KeyNotFoundException)
-			{
-				return value.ToString();
-			}
-		}
-
-		private async Task<string> OpenRightGate()
-		{
-			var url = config.RootElement.GetProperty("openhab_url").GetString();
-			url += config.RootElement.GetProperty("item_right_gate").GetString();
-			return await Post(url, "ON");
-		}
-
-		private async Task<string> Post(string url, string v)
-		{
-			var content = new ByteArrayContent(Encoding.UTF8.GetBytes(v));
-			content.Headers.Add("Content-Type", "text/plain");
-			var result = await http.PostAsync(url, content);
-			if (result.IsSuccessStatusCode) return "OK";
-			else return "Fail. " + result.ReasonPhrase;
-
-		}
-
-		private async Task<string> OpenLeftGate()
-		{
-			var url = config.RootElement.GetProperty("openhab_url").GetString();
-			url += config.RootElement.GetProperty("item_left_gate").GetString();
-			return await Post(url, "ON");
-		}
-
-		private bool VerifyUser(long id, string username)
-		{
-			Console.WriteLine("Verify user " + username + " id " + id);
-			foreach (var element in config.RootElement.GetProperty("valid_users").EnumerateArray())
-			{
-				if (username == element.GetString())
-				{
-					return true;
-				}
-			}
-			foreach (var element in config.RootElement.GetProperty("valid_user_ids").EnumerateArray())
-			{
-				if (id.ToString() == element.GetString())
-				{
-					return true;
-				}
-			}
-			return false;
-		}
 	}
 }