from pydantic_settings import BaseSettings, SettingsConfigDict
from pydantic import BaseModel

class RunSettings(BaseModel):
    host: str = "0.0.0.0"
    port: int = 8000

class APIV1Prefix(BaseModel):
    prefix:str = "/v1"
    user:str = "/user"
    login:str = "/login"

class APIPrefix(BaseModel):
    prefix:str = "/api"
    v1: APIV1Prefix = APIV1Prefix()

class DatabaseConfig(BaseModel):
    url: str
    echo:bool=False
    echo_pool:bool=False
    pool_size: int = 50
    max_overflow: int =10
    convention:dict = {
            "ix": "ix_%(column_0_label)s",
            "uq": "uq_%(table_name)s_%(column_0_name)s",
            "ck": "ck_%(table_name)s_%(constraint_name)s",
            "fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s",
            "pk": "pk_%(table_name)s",
        }

class Settings(BaseSettings):
    model_config = SettingsConfigDict(
        env_file=".env",
        case_sensitive=False,
        env_nested_delimiter="__",
        env_prefix="APP_CONFIG__"
    )
    run: RunSettings = RunSettings()
    db: DatabaseConfig
    api: APIPrefix = APIPrefix()

settings = Settings()