"""
Configuración central del sistema.
Carga variables de entorno y define settings globales.
"""

from pydantic_settings import BaseSettings
from typing import Optional


class Settings(BaseSettings):
    """Configuración de la aplicación."""

    # Aplicación
    APP_NAME: str = "social-media-automation"
    APP_ENV: str = "development"
    DEBUG: bool = True
    SECRET_KEY: str = "change-this-in-production"

    # Base de datos
    DATABASE_URL: str = "postgresql://social_user:social_pass@localhost:5432/social_automation"

    # Redis
    REDIS_URL: str = "redis://localhost:6379/0"

    # DeepSeek API
    DEEPSEEK_API_KEY: Optional[str] = None
    DEEPSEEK_BASE_URL: str = "https://api.deepseek.com/v1"

    # X (Twitter) API
    X_API_KEY: Optional[str] = None
    X_API_SECRET: Optional[str] = None
    X_ACCESS_TOKEN: Optional[str] = None
    X_ACCESS_TOKEN_SECRET: Optional[str] = None
    X_BEARER_TOKEN: Optional[str] = None

    # Meta API (Facebook, Instagram, Threads)
    META_APP_ID: Optional[str] = None
    META_APP_SECRET: Optional[str] = None
    META_ACCESS_TOKEN: Optional[str] = None
    FACEBOOK_PAGE_ID: Optional[str] = None
    INSTAGRAM_ACCOUNT_ID: Optional[str] = None
    THREADS_USER_ID: Optional[str] = None

    # Información del negocio
    BUSINESS_NAME: str = "Consultoría AS"
    BUSINESS_LOCATION: str = "Tijuana, México"
    BUSINESS_WEBSITE: str = "https://consultoria-as.com"
    CONTENT_TONE: str = "profesional pero cercano, educativo, orientado a soluciones"

    # Notificaciones
    TELEGRAM_BOT_TOKEN: Optional[str] = None
    TELEGRAM_CHAT_ID: Optional[str] = None

    class Config:
        env_file = ".env"
        case_sensitive = True


# Instancia global de configuración
settings = Settings()