"""Application configuration via Pydantic-settings environment variables."""

from __future__ import annotations

from pathlib import Path

from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    model_config = SettingsConfigDict(
        env_file=".env",
        env_file_encoding="utf-8",
        case_sensitive=False,
        extra="ignore",
    )

    # ── App ──────────────────────────────────────────────────────────
    APP_NAME: str = "Denya OneCare"
    DEBUG: bool = False

    # ── Database ─────────────────────────────────────────────────────
    DATABASE_URL: str = "sqlite+aiosqlite:///./denya_onecare.db"

    # ── Auth ─────────────────────────────────────────────────────────
    SECRET_KEY: str = "change-me-in-production-use-a-real-secret"
    ALGORITHM: str = "HS256"
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
    REFRESH_TOKEN_EXPIRE_MINUTES: int = 60 * 24 * 7  # 7 days

    # ── CORS ─────────────────────────────────────────────────────────
    CORS_ORIGINS: str = "*"

    # ── WhatsApp ─────────────────────────────────────────────────────
    WHATSAPP_PHONE_NUMBER_ID: str = ""
    WHATSAPP_ACCESS_TOKEN: str = ""
    WHATSAPP_VERIFY_TOKEN: str = ""
    META_GRAPH_BASE: str = "https://graph.facebook.com/v18.0"

    # ── Paths ────────────────────────────────────────────────────────
    BASE_DIR: Path = Path(__file__).resolve().parent.parent.parent


settings = Settings()