[PATCH v2 15/17] discord: logger: Refactor all logging method

[Muhammad Rizki <kiizuha@gnuweeb.org>]

Same as the telegram refactors. We use a simple logging method by using
file config and replace all custom logger method to built-in logging
method. This method is more cleaner and less code wasteful.

The reason why we should name the logger like:

    `logging.getLogger("dscord")`

Because, if we use "discord" as the logger name, it will conflict the
discord.py's logger, that's why we need to disable the discord.py's
logger not to interrupt our logger.

Signed-off-by: Muhammad Rizki <kiizuha@gnuweeb.org>
---
 daemon/dc.py                                  |  8 +-------
 daemon/dscord/gnuweeb/client.py               | 19 ++++++++++++-------
 daemon/dscord/gnuweeb/filters.py              | 12 +++++-------
 .../dscord/gnuweeb/plugins/events/on_ready.py |  5 ++++-
 daemon/dscord/mailer/listener.py              | 17 ++++++++++-------
 5 files changed, 32 insertions(+), 29 deletions(-)

diff --git a/daemon/dc.py b/daemon/dc.py
index f4eeefb..dade9f1 100644
--- a/daemon/dc.py
+++ b/daemon/dc.py
@@ -13,8 +13,6 @@ from apscheduler.schedulers.asyncio import AsyncIOScheduler
 from dscord.gnuweeb import GWClient
 from dscord.mailer import Listener
 from dscord.mailer import Mutexes
-from enums.platform import Platform
-from logger import BotLogger
 from atom import Scraper
 
 
@@ -28,9 +26,6 @@ def main():
 		}
 	)
 
-	logger = BotLogger(Platform.DISCORD)
-	logger.init()
-
 	logging.config.fileConfig("dscord/discord.logger.conf")
 	logging.getLogger("apscheduler").setLevel(logging.WARNING)
 	logging.getLogger("discord").setLevel(logging.WARNING)
@@ -42,8 +37,7 @@ def main():
 			port=int(os.environ.get("DB_PORT", 3306)),
 			password=os.getenv("DB_PASS"),
 			database=os.getenv("DB_NAME")
-		),
-		logger=logger
+		)
 	)
 
 	mailer = Listener(
diff --git a/daemon/dscord/gnuweeb/client.py b/daemon/dscord/gnuweeb/client.py
index 7d6433b..a04fd26 100644
--- a/daemon/dscord/gnuweeb/client.py
+++ b/daemon/dscord/gnuweeb/client.py
@@ -3,6 +3,7 @@
 # Copyright (C) 2022  Muhammad Rizki <kiizuha@gnuweeb.org>
 #
 
+import logging
 import discord
 from discord import Interaction, Message
 from discord.ext import commands
@@ -14,18 +15,19 @@ from . import models
 from atom import utils
 from enums import Platform
 from exceptions import DaemonException
-from logger.log import BotLogger
 from dscord.config import ACTIVITY_NAME, LOG_CHANNEL_ID
 from dscord.database import DB
 
 
+log = logging.getLogger("dscord")
+
+
 class GWClient(commands.Bot):
-	def __init__(self, db_conn, logger: BotLogger) -> None:
+	def __init__(self, db_conn) -> None:
 		self.db = DB(db_conn)
 		intents = Intents.default()
 		intents.message_content = True
 		self.mailer = None
-		self.logger = logger
 		super().__init__(
 			command_prefix=["$", "."],
 			description="Just a bot for receiving lore emails.",
@@ -42,7 +44,7 @@ class GWClient(commands.Bot):
 
 
 	async def report_err(self, e: DaemonException):
-		self.logger.warning(e.original_exception)
+		log.warning(e.original_exception)
 		capt = f"Atom URL: {e.atom_url}\n"
 		capt += f"Thread URL: {e.thread_url}"
 		await self.send_log_file(capt)
@@ -50,7 +52,10 @@ class GWClient(commands.Bot):
 
 	@filters.wait_on_limit
 	async def send_log_file(self, caption: str):
-		filename = self.logger.handlers[0].baseFilename
+		for handler in log.root.handlers:
+			if isinstance(handler, logging.FileHandler):
+				filename = handler.baseFilename
+
 		channel = self.get_channel(LOG_CHANNEL_ID)
 		await channel.send(
 			content=caption,
@@ -61,7 +66,7 @@ class GWClient(commands.Bot):
 	@filters.wait_on_limit
 	async def send_text_email(self, guild_id: int, chat_id: int, text: str,
 				reply_to: Union[int, None] = None, url: str = None) -> Message:
-		self.logger.debug("[send_text_email]")
+		log.debug("[send_text_email]")
 		channel = self.get_channel(chat_id)
 
 		return await channel.send(
@@ -78,7 +83,7 @@ class GWClient(commands.Bot):
 	@filters.wait_on_limit
 	async def send_patch_email(self, mail, guild_id: int, chat_id: int, text: str,
 				reply_to: Union[int, None] = None, url: str = None) -> Message:
-		self.logger.debug("[send_patch_email]")
+		log.debug("[send_patch_email]")
 		tmp, doc, caption, url = utils.prepare_patch(
 			mail, text, url, Platform.DISCORD
 		)
diff --git a/daemon/dscord/gnuweeb/filters.py b/daemon/dscord/gnuweeb/filters.py
index 28b492c..ccd13e7 100644
--- a/daemon/dscord/gnuweeb/filters.py
+++ b/daemon/dscord/gnuweeb/filters.py
@@ -5,6 +5,7 @@
 
 
 import asyncio
+import logging
 from typing import Any, Callable, TypeVar, Coroutine
 from typing_extensions import ParamSpec, ParamSpecArgs, ParamSpecKwargs
 from functools import wraps
@@ -13,9 +14,9 @@ import discord
 from discord import Interaction
 
 from dscord import config
-from logger import BotLogger
 
 
+log = logging.getLogger("dscord")
 T = TypeVar("T")
 P = ParamSpec("P")
 
@@ -45,15 +46,12 @@ def wait_on_limit(func: Callable[P, Coroutine[Any,Any,T]]) -> Callable[P, Corout
 			try:
 				return await func(*args, **kwargs)
 			except discord.errors.RateLimited as e:
-				# Calling logger attr from the GWClient() class
-				logger = args[0].logger
-
 				_flood_exceptions(e)
-				logger.info("Woken up from flood wait...")
+				log.info("Woken up from flood wait...")
 	return callback
 
 
-async def _flood_exceptions(e: "discord.errors.RateLimited", logger: BotLogger):
+async def _flood_exceptions(e: "discord.errors.RateLimited"):
 	wait = e.retry_after
-	logger.info(f"Sleeping for {wait} seconds due to Discord limit")
+	log.info(f"Sleeping for {wait} seconds due to Discord limit")
 	await asyncio.sleep(wait)
diff --git a/daemon/dscord/gnuweeb/plugins/events/on_ready.py b/daemon/dscord/gnuweeb/plugins/events/on_ready.py
index e7f63cd..4248aad 100644
--- a/daemon/dscord/gnuweeb/plugins/events/on_ready.py
+++ b/daemon/dscord/gnuweeb/plugins/events/on_ready.py
@@ -3,9 +3,12 @@
 # Copyright (C) 2022  Muhammad Rizki <kiizuha@gnuweeb.org>
 #
 
+import logging
 from discord.ext import commands
 
 
+log = logging.getLogger("dscord")
+
 class OnReady(commands.Cog):
 	def __init__(self, bot: "commands.Bot") -> None:
 		self.bot = bot
@@ -23,4 +26,4 @@ class OnReady(commands.Cog):
 		t += f"Send `{prefix}sync` message to the Discord channel "
 		t += "where the bot is running.\n"
 
-		self.bot.logger.info(t)
+		log.info(t)
diff --git a/daemon/dscord/mailer/listener.py b/daemon/dscord/mailer/listener.py
index fc066b7..25e5715 100644
--- a/daemon/dscord/mailer/listener.py
+++ b/daemon/dscord/mailer/listener.py
@@ -6,6 +6,7 @@
 
 import asyncio
 import re
+import logging
 from mysql.connector.errors import OperationalError, DatabaseError
 from apscheduler.schedulers.asyncio import AsyncIOScheduler
 from discord import File
@@ -18,6 +19,9 @@ from enums import Platform
 from exceptions import DaemonException
 
 
+log = logging.getLogger("dscord")
+
+
 class Mutexes:
 	def __init__(self):
 		self.lock = asyncio.Lock()
@@ -36,7 +40,6 @@ class Listener:
 		self.scraper = scraper
 		self.mutexes = mutexes
 		self.db = client.db
-		self.logger = client.logger
 		self.isRunnerFixed = False
 		self.runner = None
 
@@ -46,7 +49,7 @@ class Listener:
 		# Execute __run() once to avoid high latency at
 		# initilization.
 		#
-		self.logger.info("Initialize listener...\n")
+		log.info("Initialize listener...\n")
 		self.sched.start()
 		self.runner = self.sched.add_job(func=self.__run)
 
@@ -56,8 +59,8 @@ class Listener:
 		# TODO(ammarfaizi2):
 		# Ideally, we also want to log and report this situation.
 		#
-		self.logger.error(f"Database error: {str(e)}")
-		self.logger.info("Reconnecting to the database...")
+		log.error(f"Database error: {str(e)}")
+		log.info("Reconnecting to the database...")
 
 		#
 		# Don't do this too often to avoid reconnect burst.
@@ -70,7 +73,7 @@ class Listener:
 
 
 	async def __run(self):
-		self.logger.info("Running...")
+		log.info("Running...")
 		url = None
 
 		try:
@@ -128,7 +131,7 @@ class Listener:
 		email_msg_id = utils.get_email_msg_id(mail)
 		if not email_msg_id:
 			md = "email_msg_id not detected, skipping malformed email"
-			self.logger.debug(md)
+			log.debug(md)
 			return False
 
 		email_id = self.__get_email_id_sent(
@@ -137,7 +140,7 @@ class Listener:
 		)
 		if not email_id:
 			md = f"Skipping {email_id} because has already been sent to Discord"
-			self.logger.debug(md)
+			log.debug(md)
 			return False
 
 		text, files, is_patch = utils.create_template(mail, Platform.DISCORD)
-- 
Muhammad Rizki