import json
import logging
import pydapper

from ..schemas import model
from .. import local_db
from BreCal.database.sql_queries import SQLQuery

def GetNotifications(token, participant_id=None):
    """
    Optional filtering by participant_id. Returns delivered (level=2) notifications.
    """

    pooledConnection = None
    try:
        pooledConnection = local_db.getPoolConnection()
        commands = pydapper.using(pooledConnection)
        query = "SELECT id, shipcall_id, participant_id, level, type, message, created, modified FROM notification WHERE level = 2"
        params = {}
        if participant_id is not None:
            query += " AND participant_id = ?participant_id?"
            params["participant_id"] = participant_id

        data = commands.query(query, model=model.Notification.from_query_row, param=params if params else None)

    except Exception as ex:
        logging.error(ex)
        print(ex)
        result = {}
        result["error_field"] = "call failed"
        return json.dumps(result), 500, {'Content-Type': 'application/json; charset=utf-8'}
    finally:
        if pooledConnection is not None:
            pooledConnection.close()

    return json.dumps(data, default=model.obj_dict), 200, {'Content-Type': 'application/json; charset=utf-8'}