# Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: MIT-0
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of this
# software and associated documentation files (the "Software"), to deal in the Software
# without restriction, including without limitation the rights to use, copy, modify,
# merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
# INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
# PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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from logging import basicConfig, getLogger, INFO

from .constants import Constants
from sample_scenarios.sample_data import convert_object_to_ion, SampleData, get_document_ids_from_dml_results
from sample_scenarios.helpers import create_qldb_session

logger = getLogger(__name__)
basicConfig(level=INFO)


def update_person_id(document_ids):
    """
    Update the PersonId value for DriversLicense records and the PrimaryOwner value for VehicleRegistration records.
    """
    new_drivers_licenses = SampleData.DRIVERS_LICENSE.copy()
    new_vehicle_registrations = SampleData.VEHICLE_REGISTRATION.copy()
    for i in range(len(SampleData.PERSON)):
        drivers_license = new_drivers_licenses[i]
        registration = new_vehicle_registrations[i]
        drivers_license.update({'PersonId': str(document_ids[i])})
        registration['Owners']['PrimaryOwner'].update({'PersonId': str(document_ids[i])})
    return new_drivers_licenses, new_vehicle_registrations


def insert_documents(transaction_executor, table_name, documents):
    logger.info('Inserting some documents in the {} table...'.format(table_name))
    statement = 'INSERT INTO {} ?'.format(table_name)
    cursor = transaction_executor.execute_statement(statement, convert_object_to_ion(documents))
    list_of_document_ids = get_document_ids_from_dml_results(cursor)

    return list_of_document_ids


def update_and_insert_documents(transaction_executor):
    """
    Handle the insertion of documents and updating PersonIds all in a single transaction.
    """

    list_ids = insert_documents(transaction_executor, Constants.PERSON_TABLE_NAME, SampleData.PERSON)

    logger.info("Updating PersonIds for 'DriversLicense' and PrimaryOwner for 'VehicleRegistration'...")
    new_licenses, new_registrations = update_person_id(list_ids)

    insert_documents(transaction_executor, Constants.VEHICLE_TABLE_NAME, SampleData.VEHICLE)
    insert_documents(transaction_executor, Constants.VEHICLE_REGISTRATION_TABLE_NAME, new_registrations)
    insert_documents(transaction_executor, Constants.DRIVERS_LICENSE_TABLE_NAME, new_licenses)


if __name__ == '__main__':
    """
    Insert documents into a table in a QLDB ledger.
    """
    try:
        with create_qldb_session() as session:
            session.execute_lambda(lambda executor: update_and_insert_documents(executor),
                                   lambda retry_attempt: logger.info('Retrying due to OCC conflict...'))
            logger.info('Documents inserted successfully!')
    except Exception:
        logger.exception('Error inserting or updating documents.')