from app.storage.base import StorageProvider
from app.storage.local import LocalStorageProvider


class StorageManager:
    _instance = None

    def __new__(cls):
        if cls._instance is None:
            cls._instance = super().__new__(cls)
            cls._instance._initialized = False
        return cls._instance

    def __init__(self):
        if self._initialized:
            return
        self.provider: StorageProvider = LocalStorageProvider()
        self._initialized = True

    def set_provider(self, provider: StorageProvider):
        self.provider = provider

    async def save(self, file_path: str, data: bytes) -> str:
        return await self.provider.save(file_path, data)

    async def delete(self, file_path: str) -> bool:
        return await self.provider.delete(file_path)

    async def get_url(self, file_path: str) -> str:
        return await self.provider.get_url(file_path)


storage_manager = StorageManager()