from flask import current_app

from .db import MongoDB


class UObject(object):
    def __init__(self, app=None):
        self.app = app

    def all(self):
        db = MongoDB(self.app)
        mongo = db.connection()
        return list(mongo.db.objects.find({}))

    def register(self, name, datas):
        db = MongoDB(self.app)
        mongo = db.connection()
        error = {}

        if not name:
            error = {'msg': 'Object name is required.', 'code': 400}
        elif type(datas) != dict:
            error = {
                "msg": "Object datas type is not dict (JSON).",
                "code": 400
            }
        elif len(list(mongo.db.objects.find({"name": name}))) > 0:
            error = {
                'msg': 'Object {} is already registered.'.format(name),
                'code': 409
            }
        if not error:
            mongo.db.objects.insert({"name": name, "datas": datas})
            return {'msg': 'Object {} added.'.format(name), 'code': 201}
        return error

    def remove(self, name):
        db = MongoDB(self.app)
        mongo = db.connection()
        error = {}

        if not name:
            error = {'msg': 'Object name is required', 'code': 400}
        elif len(list(mongo.db.objects.find({"name": name}))) == 0:
            error = {
                'msg': "User {} not exist. So it's good".format(name),
                'code': 404
            }

        if not error:
            mongo.db.objects.remove({'name': name})
            return {'msg': 'Object {} deleted'.format(name), 'code': 200}
        return error