Add CafeController to handle burger orders via Telegram bot

The new CafeController class in CafeController.cs handles Telegram bot commands related to ordering burgers. It includes methods to present order options (/burgers), process orders (inline commands), and notify users when their order is ready (/burgersdone). The class uses attributes and classes from the TelegramBot library, sends order details to an admin, and provides feedback to users about their orders.

Author: bvdcode

Sources/TelegramBot.ConsoleTest/Controllers/CafeController.cs

@@ -0,0 +1,73 @@
+using Telegram.Bot;
+using TelegramBot.Builders;
+using TelegramBot.Attributes;
+using TelegramBot.Controllers;
+using TelegramBot.Abstractions;
+
+namespace TelegramBot.ConsoleTest.Controllers
+{
+    public class CafeController(ITelegramBotClient telegramBotClient) : BotControllerBase
+    {
+        const long adminId = 123;
+
+        [TextCommand("/burgers")]
+        public IActionResult HandleBurgers()
+        {
+            KeyboardBuilder builder = new();
+            builder
+                .WithColumns(2)
+                .AddButton("🍔", "/burgers/1/drink/false")
+                .AddButton("🍔🍔", "/burgers/2/drink/false")
+                .AddButton("🍔🥤", "/burgers/1/drink/true")
+                .AddButton("🍔🍔🥤", "/burgers/2/drink/true");
+            return Inline("Choose your order:", builder.Build());
+        }
+
+        [InlineCommand("/burgers/{burgers}/drink/{drink}")]
+        public async Task<IActionResult> HandleBurgersAsync(int burgers, bool drink)
+        {
+            const int burgerPrice = 5;
+            const int drinkPrice = 2;
+            int cookTime = Random.Shared.Next(18, 35);
+            int totalPrice = burgers * burgerPrice + (drink ? drinkPrice : 0);
+
+            string text = "🍽🍽🍽🍽🍽🍽🍽🍽🍽🍽🍽🍽\n" +
+                "Vadim's Burgers got your order!\n\n" +
+                "Your order:\n" +
+                $"🍔 {burgers}x Vadim's Burger\n" +
+                (drink ? "🥤 1x Drink\n" : "No drink\n\n") +
+                $"Total: ${totalPrice}.00\n\n" +
+                "The best burgers will be ready in " + cookTime + " minutes\n" +
+                "🍽🍽🍽🍽🍽🍽🍽🍽🍽🍽🍽🍽";
+
+            string sender = Update.Message?.From?.Username ?? "Anonymous";
+            string orderText = $"Order from {sender}:\n" +
+                $"🍔 {burgers}x Vadim's Burger\n" +
+                (drink ? "🥤 1x Drink\n" : "No drink\n") +
+            $"Total: ${totalPrice}.00\n" +
+                "Send /burgersdone when you are ready to pick up";
+
+            await telegramBotClient.SendTextMessageAsync(adminId, orderText);
+            SetValue("customerId", User.Id);
+            await telegramBotClient.DeleteMessageAsync(User.Id, Update.CallbackQuery!.Message!.MessageId);
+            return Text(text);
+        }
+
+        [TextCommand("/burgersdone")]
+        public async Task<IActionResult> HandleBurgersDoneAsync()
+        {
+            const string text = "🍽🍔🥤🍔🥤🍔🍽\n\n" +
+                "Your order is ready!\n" +
+                "Please pick up your order at the living room.\n" +
+                "Enjoy your meal!\n\n" +
+                "🍽🍔🥤🍔🥤🍔🍽";
+            long customerId = GetValue<long>("customerId");
+            if (customerId == 0)
+            {
+                return Text("You have no active orders");
+            }
+            await telegramBotClient.SendTextMessageAsync(customerId, text);
+            return Text(text);
+        }
+    }
+}