from dataclasses import dataclass, field, asdict
from json import loads, dump, dumps
from typing import TextIO

config_version = 1


@dataclass
class Config:
    @dataclass
    class Logs:
        path: str = 'logs/'
        name: str = 'KuroCore'
        level: str = 'DEBUG'
        requests: bool = False
        console: bool = False

    @dataclass
    class Database:
        driver: str = 'psql'
        host: str = ''
        name: str = ''
        user: str = 'root'
        password: str = ''
        port: int = 5432

    @dataclass
    class Callback:
        enabled: bool = False
        code: str = ''
        port: int = 9980
        secret: str = ''

    version: int = config_version
    tokens: list[str] = field(default_factory=list[str])
    prefixes: list[str] = field(default_factory=list[str])
    sentry_dsn: str = ''
    debug: bool = False
    logs: Logs = field(default_factory=Logs)
    database: Database = field(default_factory=Database)
    callback: Callback = field(default_factory=Callback)

    plugins = []

    @staticmethod
    def loads(config_str: str):
        json: dict = loads(config_str)
        if json.get('version', 0) < config_version:
            raise Exception('This config was generated for old version! Move config file and try again.')
        if json.get('version', 0) > config_version:
            raise Exception('This config was generated for newer version! Move config file and try again.')

        json.update({'callback': Config.Callback(**json['callback'])})
        json.update({'database': Config.Database(**json['database'])})
        json.update({'logs': Config.Logs(**json['logs'])})

        return Config(**json)

    @staticmethod
    def loadp(path: str):
        try:
            with open(path, 'r') as f:
                return Config.loads(f.read())
        except FileNotFoundError:
            gen = asdict(Config())
            with open(path, 'w') as f:
                dump(gen, f)
            return Config.loads(dumps(gen))

    @staticmethod
    def load(file: TextIO):
        return Config.loads(file.read())