import os
from dotenv import load_dotenv

load_dotenv()


class Config:
    DISCORD_TOKEN: str = os.getenv("DISCORD_TOKEN", "")
    TEXT_CHANNEL_ID: int = int(os.getenv("TEXT_CHANNEL_ID", "0"))
    VOICE_WAV_PATH: str = os.getenv("VOICE_WAV_PATH", "./voice.wav")

    @classmethod
    def validate(cls) -> list[str]:
        """Validate configuration and return list of errors."""
        errors = []
        if not cls.DISCORD_TOKEN:
            errors.append("DISCORD_TOKEN is not set")
        if cls.TEXT_CHANNEL_ID == 0:
            errors.append("TEXT_CHANNEL_ID is not set")
        if not os.path.exists(cls.VOICE_WAV_PATH):
            errors.append(f"Voice WAV file not found: {cls.VOICE_WAV_PATH}")
        return errors