from functools import lru_cache
from pathlib import Path

from pydantic import Field
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_name: str = "AIVideo"
    app_env: str = "development"
    app_host: str = "0.0.0.0"
    app_port: int = 8000
    app_debug: bool = True

    database_url: str = "sqlite:///./aivideo.sqlite3"
    redis_url: str = "redis://127.0.0.1:6379/0"
    celery_task_always_eager: bool = True

    jwt_secret: str = "replace_me"
    jwt_refresh_secret: str = "replace_me_too"
    jwt_access_expire_minutes: int = 120
    jwt_refresh_expire_days: int = 30
    jwt_cookie_domain: str | None = None

    cors_origins: str = Field(
        default="http://localhost:3000,http://localhost:3001"
    )

    storage_provider: str = "local"
    local_storage_path: str = "storage_data"
    storage_bucket: str = "ai-video"
    storage_public_base_url: str = "http://127.0.0.1:8000/storage"

    point_exchange_ratio: int = 100
    invite_reward_min_consume_points: int = 100
    redeem_code_fail_limit_per_hour: int = 20
    task_default_poll_interval_seconds: int = 5
    task_max_poll_minutes: int = 30
    task_daily_create_limit: int = 50
    mock_task_run_seconds: int = 18
    mock_task_progress_step: int = 25

    admin_username: str = "admin"
    admin_password: str = "Admin@123456"
    admin_nickname: str = "Super Admin"

    @property
    def parsed_cors_origins(self) -> list[str]:
        return [origin.strip() for origin in self.cors_origins.split(",") if origin.strip()]

    @property
    def project_root(self) -> Path:
        return Path(__file__).resolve().parents[3]

    @property
    def storage_root(self) -> Path:
        return self.project_root / self.local_storage_path


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