import json
import os
import yaml
from pathlib import Path
from typing import List
from pydantic import BaseModel


class Block(BaseModel):
    name: str
    keywords: List[str]


class Config(BaseModel):
    blackblocks: List[Block]
    whiteblocks: List[Block]
    log_file: Path = Path()
    config_file: Path = Path()
    check_delay: int = 1000
    minimize_delay: int = 5
    blackblocks_only: bool = True

    class Config:
        extra = 'forbid'

    @classmethod
    def load(cls, config_file: str) -> Config:
        config_file = os.path.expanduser(config_file)
        with open(config_file, "r") as f:
            config_dict = yaml.safe_load(f)
        config = cls(**config_dict)
        config.config_file = Path(config_file)
        return config