from flask import jsonify, Response

from protobuf_files import niming_pb2

def error(message:str) -> Response:
    return jsonify({"error":message})


def error_proto(type:str, message:str) -> Response:
    if type == "post":
        proto = niming_pb2.PostResponse()
        proto.hash = ""
        proto.id = 0
    elif type == "fetch":
        proto = niming_pb2.FetchResponse()
    proto.status = niming_pb2.Status.Failed
    proto.failed_message = message
    return proto.SerializeToString()


def internal_json2protobuf(original:list|dict) -> bytes:
    if isinstance(original, dict):
        original = [original]
    
    res = niming_pb2.FetchResponse(status = niming_pb2.Status.Success)
    for o in original:
        ob = niming_pb2.FetchResponse.Message(
            id = o["id"],
            content = o["content"],
            igid = o["igid"],
            mark = o["mark"],
            files_id = o["files_id"]
        )
        if None not in o["comments"]:
            ob.comments_id.extend(o["comments"])
        if o["reference"]:
            ob.ref = o["reference"]
        if "ip" in o:
            ob.ip = o["ip"]
        if "hash" in o:
            ob.hash = o["hash"]
        res.posts.append(ob)
    return res.SerializeToString()