from functools import lru_cache

from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    app_name: str = "dating-mini-program-api"
    app_env: str = "development"
    app_debug: bool = True
    api_v1_prefix: str = "/api/v1"

    mysql_host: str = "127.0.0.1"
    mysql_port: int = 3306
    mysql_user: str = "root"
    mysql_password: str = ""
    mysql_database: str = "dating_app"

    redis_host: str = "127.0.0.1"
    redis_port: int = 6379
    redis_db: int = 0
    redis_password: str = ""

    jwt_secret_key: str = "replace_with_a_secure_secret"
    jwt_algorithm: str = "HS256"
    jwt_access_token_expire_minutes: int = 10080

    wx_appid: str = ""
    wx_secret: str = ""
    wx_miniprogram_page_activity_detail: str = "pages/activity-detail/activity-detail"
    wx_template_audit_result: str = ""
    wx_template_match_success: str = ""

    cos_region: str = ""
    cos_secret_id: str = ""
    cos_secret_key: str = ""
    cos_bucket: str = ""
    cos_base_url: str = ""

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

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

    @property
    def redis_url(self) -> str:
        auth = f":{self.redis_password}@" if self.redis_password else ""
        return f"redis://{auth}{self.redis_host}:{self.redis_port}/{self.redis_db}"


@lru_cache
def get_settings() -> Settings:
    return Settings()


settings = get_settings()