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// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Apache Software Foundation (ASF) licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

// Package schema contains integration tests for distributed schema deletion.
package schema

import (
	"time"

	"github.com/onsi/ginkgo/v2"
	"github.com/onsi/gomega"
	"github.com/onsi/gomega/gleak"
	"google.golang.org/grpc"
	"google.golang.org/grpc/credentials/insecure"

	schemapkg "github.com/apache/skywalking-banyandb/banyand/metadata/schema"
	"github.com/apache/skywalking-banyandb/pkg/grpchelper"
	"github.com/apache/skywalking-banyandb/pkg/logger"
	"github.com/apache/skywalking-banyandb/pkg/pool"
	"github.com/apache/skywalking-banyandb/pkg/test"
	"github.com/apache/skywalking-banyandb/pkg/test/flags"
	"github.com/apache/skywalking-banyandb/pkg/test/gmatcher"
	"github.com/apache/skywalking-banyandb/pkg/test/helpers"
	test_measure "github.com/apache/skywalking-banyandb/pkg/test/measure"
	"github.com/apache/skywalking-banyandb/pkg/test/setup"
	test_stream "github.com/apache/skywalking-banyandb/pkg/test/stream"
	test_trace "github.com/apache/skywalking-banyandb/pkg/test/trace"
	"github.com/apache/skywalking-banyandb/pkg/timestamp"
	casesschema "github.com/apache/skywalking-banyandb/test/cases/schema"
)

var (
	now           time.Time
	stopFunc      func()
	connection    *grpc.ClientConn
	goods         []gleak.Goroutine
	dataNodeAddrs []string
)

var _ = ginkgo.SynchronizedBeforeSuite(func() []byte {
	gomega.Expect(logger.Init(logger.Logging{
		Env:   "dev",
		Level: flags.LogLevel,
	})).To(gomega.Succeed())
	pool.EnableStackTracking(true)
	goods = gleak.Goroutines()
	tmpDir, tmpDirCleanup, tmpErr := test.NewSpace()
	gomega.Expect(tmpErr).NotTo(gomega.HaveOccurred())
	dfWriter := setup.NewDiscoveryFileWriter(tmpDir)
	config := setup.PropertyClusterConfig(dfWriter)
	ginkgo.By("Starting data node 0")
	addrDataNode0, _, _, closeDataNode0 := setup.DataNodeWithAddrAndDir(config)
	ginkgo.By("Starting data node 1")
	addrDataNode1, _, _, closeDataNode1 := setup.DataNodeWithAddrAndDir(config)
	dataNodeAddrs = []string{addrDataNode0, addrDataNode1}
	ginkgo.By("Loading schema via property")
	setup.PreloadSchemaViaProperty(config, test_stream.PreloadSchema, test_measure.PreloadSchema, test_trace.PreloadSchema)
	config.AddLoadedKinds(schemapkg.KindStream, schemapkg.KindMeasure, schemapkg.KindTrace)
	ginkgo.By("Starting liaison node")
	liaisonAddr, closerLiaisonNode := setup.LiaisonNode(config,
		"--measure-metadata-cache-wait-duration=3s",
		"--stream-metadata-cache-wait-duration=3s",
		"--trace-metadata-cache-wait-duration=3s")
	ns := timestamp.NowMilli().UnixNano()
	now = time.Unix(0, ns-ns%int64(time.Minute))
	stopFunc = func() {
		closerLiaisonNode()
		closeDataNode0()
		closeDataNode1()
		tmpDirCleanup()
	}
	return []byte(liaisonAddr)
}, func(address []byte) {
	var err error
	connection, err = grpchelper.Conn(string(address), 10*time.Second,
		grpc.WithTransportCredentials(insecure.NewCredentials()))
	casesschema.SharedContext = helpers.SharedContext{
		Connection:    connection,
		Mode:          helpers.ModeDistributed,
		BaseTime:      now,
		DataNodeAddrs: dataNodeAddrs,
		LiaisonAddr:   string(address),
	}
	gomega.Expect(err).NotTo(gomega.HaveOccurred())
})

var _ = ginkgo.SynchronizedAfterSuite(func() {
	if connection != nil {
		gomega.Expect(connection.Close()).To(gomega.Succeed())
	}
}, func() {})

var _ = ginkgo.ReportAfterSuite("Distributed Schema Deletion Suite", func(report ginkgo.Report) {
	if report.SuiteSucceeded {
		if stopFunc != nil {
			stopFunc()
		}
		gomega.Eventually(gleak.Goroutines, flags.EventuallyTimeout).ShouldNot(gleak.HaveLeaked(goods))
		gomega.Eventually(pool.AllRefsCount, flags.EventuallyTimeout).Should(gmatcher.HaveZeroRef())
	}
})
