implement bots

bots/modules/echo.py

@@ -0,0 +1,18 @@
+from django.db import models
+from telegram import Update
+from telegram.ext import Dispatcher, CallbackContext, MessageHandler, Filters
+
+from bots.models import TelegramBotModuleConfig
+
+
+class EchoBotModuleConfig(TelegramBotModuleConfig):
+    prefix = models.TextField()
+
+    MODULE_NAME = 'Echo'
+
+    def message_handler(self, update: Update, ctx: CallbackContext):
+        update.effective_message.reply_text(self.prefix + update.effective_message.text)
+
+    def build_dispatcher(self, dispatcher: Dispatcher):
+        dispatcher.add_handler(MessageHandler(Filters.text, self.message_handler))
+        return dispatcher