/*
 * Copyright (c) 2018 VMware, Inc.
 *
 * 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, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial
 * portions of the Software.
 *
 * 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 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package worker

import (
	"github.com/aws/aws-sdk-go/aws"
	"github.com/aws/aws-sdk-go/aws/session"
	"github.com/aws/aws-sdk-go/service/dynamodb"
	"os"
	"testing"
	"time"

	log "github.com/sirupsen/logrus"

	"github.com/stretchr/testify/assert"
	chk "github.com/vmware/vmware-go-kcl/clientlibrary/checkpoint"
	cfg "github.com/vmware/vmware-go-kcl/clientlibrary/config"
	"github.com/vmware/vmware-go-kcl/clientlibrary/utils"
)

func TestCustomWorker(t *testing.T) {
	kclConfig := cfg.NewKinesisClientLibConfig("appName", streamName, regionName, workerID).
		WithInitialPositionInStream(cfg.LATEST).
		WithMaxRecords(10).
		WithMaxLeasesForWorker(1).
		WithShardSyncIntervalMillis(5000).
		WithFailoverTimeMillis(300000).
		WithMetricsBufferTimeMillis(10000).
		WithMetricsMaxQueueSize(20)

	log.SetOutput(os.Stdout)
	log.SetLevel(log.DebugLevel)

	assert.Equal(t, regionName, kclConfig.RegionName)
	assert.Equal(t, streamName, kclConfig.StreamName)

	// configure cloudwatch as metrics system
	metricsConfig := getMetricsConfig(kclConfig, metricsSystem)

	// create dynamodb checkpointer.
	s, err := session.NewSession(&aws.Config{
		Region:      aws.String(regionName),
		Endpoint:    &kclConfig.DynamoDBEndpoint,
		Credentials: kclConfig.DynamoDBCredentials,
	})

	if err != nil {
		// no need to move forward
		log.Fatalf("Failed in getting DynamoDB session for creating Worker: %+v", err)
	}

	checkpointer := chk.NewDynamoCheckpoint(dynamodb.New(s), kclConfig)

	worker := NewCustomWorker(recordProcessorFactory(t), kclConfig, checkpointer, metricsConfig)
	assert.Equal(t, regionName, worker.regionName)
	assert.Equal(t, streamName, worker.streamName)

	err = worker.Start()
	assert.Nil(t, err)

	// Put some data into stream.
	for i := 0; i < 100; i++ {
		// Use random string as partition key to ensure even distribution across shards
		err := worker.Publish(streamName, utils.RandStringBytesMaskImpr(10), []byte(specstr))
		if err != nil {
			t.Errorf("Errorin Publish. %+v", err)
		}
	}

	// wait a few seconds before shutdown processing
	time.Sleep(10 * time.Second)
	worker.Shutdown()
}