/*
© Copyright IBM Corporation 2017

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 main

import (
	"context"
	"strings"
	"testing"

	"github.com/docker/docker/api/types/container"
	"github.com/docker/docker/api/types/network"
	"github.com/docker/docker/client"
	"github.com/docker/go-connections/nat"
)

const image string = "mq-advancedserver:latest-x86_64"

func TestLicenseNotSet(t *testing.T) {
	cli, err := client.NewEnvClient()
	if err != nil {
		t.Fatal(err)
	}
	containerConfig := container.Config{
		Image: image,
	}
	id := runContainer(t, cli, &containerConfig)
	defer cleanContainer(t, cli, id)
	rc := waitForContainer(t, cli, id, 5)
	if rc != 1 {
		t.Errorf("Expected rc=1, got rc=%v", rc)
	}
}

func TestLicenseView(t *testing.T) {
	cli, err := client.NewEnvClient()
	if err != nil {
		t.Fatal(err)
	}
	containerConfig := container.Config{
		Image: image,
		Env:   []string{"LICENSE=view"},
	}
	id := runContainer(t, cli, &containerConfig)
	defer cleanContainer(t, cli, id)
	rc := waitForContainer(t, cli, id, 5)
	if rc != 1 {
		t.Errorf("Expected rc=1, got rc=%v", rc)
	}
	l := inspectLogs(t, cli, id)
	const s string = "terms"
	if !strings.Contains(l, s) {
		t.Errorf("Expected license string to contain \"%v\", got %v", s, l)
	}
}

func TestGoldenPath(t *testing.T) {
	cli, err := client.NewEnvClient()
	if err != nil {
		t.Fatal(err)
	}
	containerConfig := container.Config{
		Image: image,
		Env:   []string{"LICENSE=accept", "MQ_QMGR_NAME=qm1"},
		//ExposedPorts: ports,
		ExposedPorts: nat.PortSet{
			"1414/tcp": struct{}{},
		},
	}
	id := runContainer(t, cli, &containerConfig)
	defer cleanContainer(t, cli, id)
	waitForReady(t, cli, id)
}

func utilTestNoQueueManagerName(t *testing.T, hostName string, expectedName string) {
	search := "QMNAME(" + expectedName + ")"
	cli, err := client.NewEnvClient()
	if err != nil {
		t.Fatal(err)
	}
	containerConfig := container.Config{
		Image:    image,
		Env:      []string{"LICENSE=accept"},
		Hostname: hostName,
		ExposedPorts: nat.PortSet{
			"1414/tcp": struct{}{},
		},
	}
	id := runContainer(t, cli, &containerConfig)
	defer cleanContainer(t, cli, id)
	waitForReady(t, cli, id)
	_, out := execContainer(t, cli, id, []string{"dspmq"})
	if !strings.Contains(out, search) {
		t.Errorf("Expected result of running dspmq to contain name=%v, got name=%v", search, out)
	}
}
func TestNoQueueManagerName(t *testing.T) {
	utilTestNoQueueManagerName(t, "test", "test")
}

func TestNoQueueManagerNameInvalidHostname(t *testing.T) {
	utilTestNoQueueManagerName(t, "test-1", "test1")
}

// TestWithVolume runs a container with a Docker volume, then removes that
// container and starts a new one with same volume.
func TestWithVolume(t *testing.T) {
	cli, err := client.NewEnvClient()
	if err != nil {
		t.Fatal(err)
	}
	vol := createVolume(t, cli)
	defer removeVolume(t, cli, vol.Name)
	containerConfig := container.Config{
		Image: image,
		Env:   []string{"LICENSE=accept", "MQ_QMGR_NAME=qm1"},
	}
	hostConfig := container.HostConfig{
		Binds: []string{
			coverageBind(t),
			//"coverage:/var/coverage",
			vol.Name + ":/mnt/mqm",
		},
	}
	networkingConfig := network.NetworkingConfig{}
	ctr, err := cli.ContainerCreate(context.Background(), &containerConfig, &hostConfig, &networkingConfig, t.Name())
	if err != nil {
		t.Fatal(err)
	}
	startContainer(t, cli, ctr.ID)
	// TODO: If this test gets an error waiting for readiness, the first container might not get cleaned up
	waitForReady(t, cli, ctr.ID)

	// Delete the first container
	cleanContainer(t, cli, ctr.ID)

	// Start a new container with the same volume
	ctr2, err := cli.ContainerCreate(context.Background(), &containerConfig, &hostConfig, &networkingConfig, t.Name())
	if err != nil {
		t.Fatal(err)
	}
	defer cleanContainer(t, cli, ctr2.ID)
	startContainer(t, cli, ctr2.ID)
	waitForReady(t, cli, ctr2.ID)
}

func TestNoVolumeWithRestart(t *testing.T) {
	cli, err := client.NewEnvClient()
	if err != nil {
		t.Fatal(err)
	}
	containerConfig := container.Config{
		Image: image,
		Env:   []string{"LICENSE=accept", "MQ_QMGR_NAME=qm1"},
		//ExposedPorts: ports,
		ExposedPorts: nat.PortSet{
			"1414/tcp": struct{}{},
		},
	}
	id := runContainer(t, cli, &containerConfig)
	defer cleanContainer(t, cli, id)
	waitForReady(t, cli, id)
	stopContainer(t, cli, id)
	startContainer(t, cli, id)
	waitForReady(t, cli, id)
}