/*
 *     Copyright 2024 The Dragonfly Authors
 *
 * Licensed 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 e2e

import (
	"fmt"

	. "github.com/onsi/ginkgo/v2" //nolint
	. "github.com/onsi/gomega"    //nolint

	"d7y.io/dragonfly/v2/test/e2e/util"
)

var _ = Describe("Download Concurrency", func() {
	Context("ab", func() {
		var (
			testFile *util.File
			err      error
		)

		BeforeEach(func() {
			testFile, err = util.GetFileServer().GenerateFile(util.FileSize1MiB)
			Expect(err).NotTo(HaveOccurred())
			Expect(testFile).NotTo(BeNil())
		})

		AfterEach(func() {
			err = util.GetFileServer().DeleteFile(testFile.GetInfo())
			Expect(err).NotTo(HaveOccurred())
		})

		It("concurrent 100 should be ok", Label("concurrent", "100"), func() {
			clientPod, err := util.ClientExec()
			fmt.Println(err)
			Expect(err).NotTo(HaveOccurred())

			out, err := clientPod.Command("sh", "-c", fmt.Sprintf("ab -c 100 -n 200 -X 127.0.0.1:4001 %s", testFile.GetDownloadURL())).CombinedOutput()
			fmt.Println(string(out))
			Expect(err).NotTo(HaveOccurred())

			sha256sum, err := util.CalculateSha256ByTaskID([]*util.PodExec{clientPod}, testFile.GetTaskID())
			Expect(err).NotTo(HaveOccurred())
			Expect(testFile.GetSha256()).To(Equal(sha256sum))

			seedClientPods := make([]*util.PodExec, 3)
			for i := range 3 {
				seedClientPods[i], err = util.SeedClientExec(i)
				fmt.Println(err)
				Expect(err).NotTo(HaveOccurred())
			}

			sha256sum, err = util.CalculateSha256ByTaskID(seedClientPods, testFile.GetTaskID())
			Expect(err).NotTo(HaveOccurred())
			Expect(testFile.GetSha256()).To(Equal(sha256sum))
		})

		It("concurrent 200 should be ok", Label("concurrent", "200"), func() {
			clientPod, err := util.ClientExec()
			fmt.Println(err)
			Expect(err).NotTo(HaveOccurred())

			out, err := clientPod.Command("sh", "-c", fmt.Sprintf("ab -c 200 -n 400 -X 127.0.0.1:4001 %s", testFile.GetDownloadURL())).CombinedOutput()
			fmt.Println(string(out))
			Expect(err).NotTo(HaveOccurred())

			sha256sum, err := util.CalculateSha256ByTaskID([]*util.PodExec{clientPod}, testFile.GetTaskID())
			Expect(err).NotTo(HaveOccurred())
			Expect(testFile.GetSha256()).To(Equal(sha256sum))

			seedClientPods := make([]*util.PodExec, 3)
			for i := range 3 {
				seedClientPods[i], err = util.SeedClientExec(i)
				fmt.Println(err)
				Expect(err).NotTo(HaveOccurred())
			}

			sha256sum, err = util.CalculateSha256ByTaskID(seedClientPods, testFile.GetTaskID())
			Expect(err).NotTo(HaveOccurred())
			Expect(testFile.GetSha256()).To(Equal(sha256sum))
		})

		It("concurrent 500 should be ok", Label("concurrent", "500"), func() {
			clientPod, err := util.ClientExec()
			fmt.Println(err)
			Expect(err).NotTo(HaveOccurred())

			out, err := clientPod.Command("sh", "-c", fmt.Sprintf("ab -c 500 -n 1000 -X 127.0.0.1:4001 %s", testFile.GetDownloadURL())).CombinedOutput()
			fmt.Println(string(out))
			Expect(err).NotTo(HaveOccurred())

			sha256sum, err := util.CalculateSha256ByTaskID([]*util.PodExec{clientPod}, testFile.GetTaskID())
			Expect(err).NotTo(HaveOccurred())
			Expect(testFile.GetSha256()).To(Equal(sha256sum))

			seedClientPods := make([]*util.PodExec, 3)
			for i := range 3 {
				seedClientPods[i], err = util.SeedClientExec(i)
				fmt.Println(err)
				Expect(err).NotTo(HaveOccurred())
			}

			sha256sum, err = util.CalculateSha256ByTaskID(seedClientPods, testFile.GetTaskID())
			Expect(err).NotTo(HaveOccurred())
			Expect(testFile.GetSha256()).To(Equal(sha256sum))
		})

		It("concurrent 1000 should be ok", Label("concurrent", "1000"), func() {
			clientPod, err := util.ClientExec()
			fmt.Println(err)
			Expect(err).NotTo(HaveOccurred())

			out, err := clientPod.Command("sh", "-c", fmt.Sprintf("ab -c 1000 -n 2000 -X 127.0.0.1:4001 %s", testFile.GetDownloadURL())).CombinedOutput()
			fmt.Println(string(out))
			Expect(err).NotTo(HaveOccurred())

			sha256sum, err := util.CalculateSha256ByTaskID([]*util.PodExec{clientPod}, testFile.GetTaskID())
			Expect(err).NotTo(HaveOccurred())
			Expect(testFile.GetSha256()).To(Equal(sha256sum))

			seedClientPods := make([]*util.PodExec, 3)
			for i := range 3 {
				seedClientPods[i], err = util.SeedClientExec(i)
				fmt.Println(err)
				Expect(err).NotTo(HaveOccurred())
			}

			sha256sum, err = util.CalculateSha256ByTaskID(seedClientPods, testFile.GetTaskID())
			Expect(err).NotTo(HaveOccurred())
			Expect(testFile.GetSha256()).To(Equal(sha256sum))
		})
	})
})