Module zenora.deserializers

# Copyright (c) 2022 DevGuyAhnaf

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from zenora import Snowflake, User
from .models.integration import Integration
from typing import Final, Type, List, Dict, Any


__all__: Final[List[str]] = [
    "deserialize_model",
    "deserialize_server_integration",
]


def deserialize_model(
    cls: Type[Any],
    payload: Dict[str, Any],
) -> Any:
    """A deserializer used for most model classes

    By default, attrs throws errors if it gets some properties from the API which do not
    exist on the model class. Example, the JSON data contains a property called 'accent color' but the class
    does not (maybe because Zenora wasn't updated after the API change). If that happens, attrs will throw an error.

    This deserializer will only map those values, which the class and the JSON data have in common (including private properties).
    As a result, that error will not be thrown
    """
    try:  # If there are no attribute issues by default, no need to loop over properties
        return cls(**payload)
    except TypeError:
        pass

    data = {}
    for x in cls.__attrs_attrs__:
        if x.name.startswith("_"):
            if (prop := x.name[1:]) in payload:
                data[prop] = payload[prop]
        if x.name in payload:
            data[x.name] = payload[x.name]
    return cls(**data)


def deserialize_server_integration(
    payload: List[Dict[str, Any]]
) -> List[Integration]:
    integrations = []

    for x in payload:
        if "user" in x:
            x["user"] = deserialize_model(User, x["user"])
        if "role_id" in x:
            x["role_id"] = Snowflake(x["role_id"])
        integrations.append(Integration(**x))
    return integrations