// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

import { Amplify } from '@aws-amplify/core';

import {
	AnalyticsValidationErrorCode,
	assertValidationError,
} from '../../../errors';

import { DEFAULT_KINESIS_CONFIG } from './constants';

export const resolveConfig = () => {
	const config = Amplify.getConfig().Analytics?.Kinesis;
	const {
		region,
		bufferSize = DEFAULT_KINESIS_CONFIG.bufferSize,
		flushSize = DEFAULT_KINESIS_CONFIG.flushSize,
		flushInterval = DEFAULT_KINESIS_CONFIG.flushInterval,
		resendLimit,
	} = {
		...DEFAULT_KINESIS_CONFIG,
		...config,
	};

	assertValidationError(!!region, AnalyticsValidationErrorCode.NoRegion);
	assertValidationError(
		flushSize < bufferSize,
		AnalyticsValidationErrorCode.InvalidFlushSize,
	);

	return {
		region,
		bufferSize,
		flushSize,
		flushInterval,
		resendLimit,
	};
};