from typing import Protocol

# Define el Protocol Saveable con el metodo save() -> str
# Luego define FileItem y DatabaseItem que lo implementen
class Saveable(Protocol):
    def save(self)-> str: ...

class FileItem:
    def __init__(self, ftype: str, name: str)-> None:
        self.ftype = ftype
        self.name = name

    def save(self)-> str:
        return f"Saved file: {self.name}"

class DatabaseItem:
    def __init__(self, dtype: str, name: str)-> None:
        self.dtype = dtype 
        self.name = name 
    
    def save(self)-> str:
        return f"Saved db: {self.name}"


def save_all(items_data: list[dict]) -> list[str]:
    # Crea los objetos segun items_data["type"] y retorna la lista de resultados de save()
    object_list = []

    for item in items_data:
        if item.get("type") == "file":
            obj = FileItem(item.get("type"), item.get("name"))

        elif item.get("type") == "db":
            obj = DatabaseItem(item.get("type"), item.get("name"))

        else:
            print("ERROR")

        object_list.append(obj.save())

    return object_list