from pydantic import Field
from pydantic_settings import BaseSettings, SettingsConfigDict


def build_database_url(
    *,
    user: str,
    password: str,
    host: str,
    port: int,
    database: str,
) -> str:
    return f"postgresql+asyncpg://{user}:{password}@{host}:{port}/{database}"


class Settings(BaseSettings):
    app_env: str = "development"
    database_url_override: str | None = Field(default=None, alias="DATABASE_URL")
    postgres_user: str = "headquarter"
    postgres_password: str = "headquarter"
    postgres_host: str = "postgres"
    postgres_port: int = 5432
    postgres_db: str = "headquarter"

    authentik_client_id: str = "headquarter-web"
    authentik_client_secret: str = "change-me"
    authentik_authorize_url: str = "https://authentik.local/application/o/authorize/"
    authentik_token_url: str = "https://authentik.local/application/o/token/"
    authentik_jwks_url: str = "https://authentik.local/application/o/headquarter-web/jwks/"
    authentik_issuer: str = "https://authentik.local/application/o/headquarter-web/"
    authentik_audience: str = "headquarter-web"

    jwt_secret: str = "change-me-jwt-secret"
    jwt_algorithm: str = "HS256"
    access_token_ttl_minutes: int = 15
    refresh_token_ttl_days: int = 7

    model_config = SettingsConfigDict(env_file=".env", extra="ignore", populate_by_name=True)

    @property
    def database_url(self) -> str:
        if self.database_url_override:
            return self.database_url_override

        return build_database_url(
            user=self.postgres_user,
            password=self.postgres_password,
            host=self.postgres_host,
            port=self.postgres_port,
            database=self.postgres_db,
        )

    @property
    def cookie_secure(self) -> bool:
        return self.app_env == "production"

    @property
    def cookie_samesite(self) -> str:
        if self.app_env == "production":
            return "strict"

        return "lax"