from __future__ import annotations

import json
from dataclasses import dataclass


@dataclass
class MysqlSettings:
	user: str
	password: str
	host: str
	port: int
	db: str


@dataclass
class BotSettings:
	token: str
	guildId: int
	prefix: str

	@dataclass
	class RoleSettings:
		member: str

	roles: BotSettings.RoleSettings

	@dataclass
	class ChannelSettings:
		joinLog: int
		leaveLog: int

	channels: BotSettings.ChannelSettings

	class CommandSettings:
		def load(self, data):
			pass

	commands: dict[str, CommandSettings]


@dataclass
class YoutrackSettings:
	url: str


class Config:
	def __init__(self, configFile: str = "./settings.json"):
		self.configFile = configFile

		with open(self.configFile, 'r') as file:
			self.configData = json.loads(file.read())

		self.__load_mysql()
		self.__load_bot()
		self.__load_youtrack()

	def register_command_settings(self, settingJson: str):
		def decorator(cls: type[BotSettings.CommandSettings]):
			currentSettings = self.BOT.commands.get(settingJson)
			if currentSettings is not None:
				raise Exception(f"Setting {settingJson} already loaded.")
			instance = cls()
			instance.load(self.commandData[settingJson])
			self.BOT.commands[settingJson] = instance

		return decorator

	def __load_mysql(self):
		mysqlData = self.configData["mysql"]
		self.MYSQL = MysqlSettings(
			user=mysqlData["user"],
			password=mysqlData["password"],
			host=mysqlData["host"],
			port=mysqlData["port"],
			db=mysqlData["db"]
		)

	def __load_bot(self):
		botData = self.configData["bot"]
		self.BOT = BotSettings(
			token=botData["token"],
			guildId=botData["guild"],
			prefix=botData["prefix"],
			roles=BotSettings.RoleSettings(
				member=botData["roles"]["member"]
			),
			channels=BotSettings.ChannelSettings(
				joinLog=botData["channels"]["joinLog"],
				leaveLog=botData["channels"]["leaveLog"]
			),
			commands={}
		)
		self.commandData = botData["commands"]

	def __load_youtrack(self):
		youtrackData = self.configData["youtrack"]
		self.YOUTRACK = YoutrackSettings(
			url=youtrackData["url"]
		)