from __future__ import annotations

from pydantic_settings import BaseSettings, SettingsConfigDict


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

    mysql_host: str
    mysql_port: int = 3306
    mysql_user: str
    mysql_password: str
    mysql_database: str

    openai_api_key: str | None = None
    openai_model: str = "gpt-4.1-mini"
    openai_embed_model: str = "text-embedding-3-small"

    milvus_host: str = "localhost"
    milvus_port: int = 19530
    milvus_collection: str = "products_v1"

    app_env: str = "dev"
    app_cors_origins: str = "http://localhost:3000"
    debug_print_db_sample: bool = False
    debug_db_sample_limit: int = 10
    debug_db_sample_max_str_len: int = 120

    @property
    def mysql_url(self) -> str:
        return (
            f"mysql+pymysql://{self.mysql_user}:{self.mysql_password}"
            f"@{self.mysql_host}:{self.mysql_port}/{self.mysql_database}?charset=utf8mb4"
        )

    @property
    def cors_origins_list(self) -> list[str]:
        return [o.strip() for o in self.app_cors_origins.split(",") if o.strip()]


settings = Settings()