"""Storage interface for DocVault."""

from abc import ABC, abstractmethod
from typing import Any, Dict, List, Optional


class StorageInterface(ABC):
    """Contract implemented by the active storage backend."""

    @abstractmethod
    def create_folder(self, user_id: str, folder_path: str) -> Dict[str, Any]:
        pass

    @abstractmethod
    def upload_file(
        self, user_id: str, folder_path: str, filename: str, file_obj: Any
    ) -> Dict[str, Any]:
        pass

    @abstractmethod
    def delete_file(self, user_id: str, file_path: str) -> Dict[str, Any]:
        pass

    @abstractmethod
    def rename_file(
        self, user_id: str, file_path: str, new_name: str
    ) -> Dict[str, Any]:
        pass

    @abstractmethod
    def delete_folder(self, user_id: str, folder_path: str) -> Dict[str, Any]:
        pass

    @abstractmethod
    def rename_folder(
        self, user_id: str, folder_path: str, new_name: str
    ) -> Dict[str, Any]:
        pass

    @abstractmethod
    def download(self, user_id: str, file_path: str) -> Dict[str, Any]:
        pass

    @abstractmethod
    def list(self, user_id: str, prefix: str = "") -> Dict[str, List[Dict[str, Any]]]:
        pass

    @abstractmethod
    def exists(self, user_id: str, path: str) -> bool:
        pass

    @abstractmethod
    def get_stats(self, user_id: str) -> Dict[str, Any]:
        pass

    @abstractmethod
    def get_history(self, user_id: str, path: str) -> List[Dict[str, Any]]:
        pass

    @abstractmethod
    def restore(
        self, user_id: str, path: str, revision: str, as_copy: bool = False
    ) -> Dict[str, Any]:
        pass

    @abstractmethod
    def add_link(
        self, user_id: str, url: str, title: str, description: str = ""
    ) -> Dict[str, Any]:
        pass

    @abstractmethod
    def get_links(self, user_id: str) -> Dict[str, Any]:
        pass

    @abstractmethod
    def delete_link(self, user_id: str, link_id: str) -> Dict[str, Any]:
        pass

    @abstractmethod
    def update_link(
        self, user_id: str, link_id: str, url: str = "", title: str = "", description: str = ""
    ) -> Dict[str, Any]:
        pass

    def standardize_file(
        self,
        name: str,
        path: str,
        size: int,
        created_at: str,
        storage_type: str,
        modified_at: Optional[str] = None,
    ) -> Dict[str, Any]:
        return {
            "name": name,
            "path": path,
            "size": size,
            "type": "file",
            "created_at": created_at,
            "modified_at": modified_at or created_at,
            "storage": storage_type,
        }

    def standardize_folder(
        self, name: str, path: str, created_at: str, storage_type: str
    ) -> Dict[str, Any]:
        return {
            "name": name,
            "path": path,
            "type": "folder",
            "created_at": created_at,
            "storage": storage_type,
        }