From 98c7f9075ddd286f53b07b26f7eb6a0d3f7b992e Mon Sep 17 00:00:00 2001
From: kiriharu <kiriharu@yandex.ru>
Date: Tue, 5 Jan 2021 00:34:54 +0300
Subject: [PATCH] Checker class

---
 apps/tgbot/tgbot/handlers/base.py | 59 +++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 apps/tgbot/tgbot/handlers/base.py

diff --git a/apps/tgbot/tgbot/handlers/base.py b/apps/tgbot/tgbot/handlers/base.py
new file mode 100644
index 0000000..e236ccd
--- /dev/null
+++ b/apps/tgbot/tgbot/handlers/base.py
@@ -0,0 +1,59 @@
+from aiogram.types import Message
+from typing import Tuple, Any
+
+from tgbot.nodes import nodes as all_nodes
+from httpx import Response
+from aiogram.bot import Bot
+from datetime import datetime
+from core.coretypes import ErrorPayload, ICMPCheckerResponse, ResponseStatus, APINodeInfo
+from .helpers import send_api_requests
+
+header = "Отчет о проверке хоста:" \
+         "\n\n— Хост: {target}"\
+         f"\n— Дата проверки: {datetime.now():%d.%m.%y в %H:%M} (MSK)"  # TODO: Get timezone
+
+
+class NotEnoughArgs(Exception):
+    pass
+
+
+class InvalidPort(Exception):
+    pass
+
+
+class CheckerBaseHandler:
+    help_message = "Set help message in class!"
+    header_message = header
+    api_endpoint = "Set api endpoint in class!"
+
+    def __init__(self):
+        pass
+
+    async def handler(self, message: Message):
+        raise NotImplemented
+
+    async def check(self, chat_id: int, bot: Bot, data: dict):
+        rsp_msg = await bot.send_message(chat_id, header.format(**data))
+        iter_keys = 1  # because I can't use enumerate
+        # using generators for magic...
+        async for res in send_api_requests(self.api_endpoint, data, all_nodes):
+            await bot.send_chat_action(chat_id, 'typing')
+            if res.status_code == 500:
+                rsp_msg = await rsp_msg.edit_text(rsp_msg.text + f"\n\n{iter_keys}. Backend offline!")
+            else:
+                node_formatted_response = await self.prepare_message(res)
+                rsp_msg = await rsp_msg.edit_text(rsp_msg.text + f"\n\n{iter_keys}. {node_formatted_response}")
+            iter_keys = iter_keys + 1
+        await rsp_msg.edit_text(rsp_msg.text + f"\n\nПроверка завершена❗")
+
+    async def process_args(self, text: str) -> list:
+        raise NotImplemented
+
+    async def message_std_vals(self, res: Response) -> Tuple[str, Any]:
+        node = APINodeInfo(**res.json().get("node", None))
+        message = f"{node.location}:\n"
+        status = res.json().get("status", None)
+        return message, status
+
+    async def prepare_message(self, res: Response) -> str:
+        raise NotImplemented