//go:build e2e
// +build e2e

package main

import (
	"context"
	"io/ioutil"
	"log"
	"os"
	"testing"

	expect "github.com/Netflix/go-expect"
	tfe "github.com/hashicorp/go-tfe"
	"github.com/hashicorp/terraform/internal/e2e"
	tfversion "github.com/hashicorp/terraform/version"
)

func Test_terraform_apply_autoApprove(t *testing.T) {
	t.Parallel()
	skipWithoutRemoteTerraformVersion(t)

	ctx := context.Background()

	cases := map[string]struct {
		operations  []operationSets
		validations func(t *testing.T, orgName string)
	}{
		"workspace manual apply, terraform apply without auto-approve, expect prompt": {
			operations: []operationSets{
				{
					prep: func(t *testing.T, orgName, dir string) {
						wsName := "app"
						_ = createWorkspace(t, orgName, tfe.WorkspaceCreateOptions{
							Name:             tfe.String(wsName),
							TerraformVersion: tfe.String(tfversion.String()),
							AutoApply:        tfe.Bool(false),
						})
						tfBlock := terraformConfigCloudBackendName(orgName, wsName)
						writeMainTF(t, tfBlock, dir)
					},
					commands: []tfCommand{
						{
							command:           []string{"init"},
							expectedCmdOutput: `Terraform Cloud has been successfully initialized!`,
						},
						{
							command:           []string{"apply"},
							expectedCmdOutput: `Do you want to perform these actions in workspace "app"?`,
							userInput:         []string{"yes"},
							postInputOutput:   []string{`Apply complete!`},
						},
					},
				},
			},
			validations: func(t *testing.T, orgName string) {
				workspace, err := tfeClient.Workspaces.ReadWithOptions(ctx, orgName, "app", &tfe.WorkspaceReadOptions{Include: "current_run"})
				if err != nil {
					t.Fatal(err)
				}
				if workspace.CurrentRun == nil {
					t.Fatal("Expected workspace to have run, but got nil")
				}
				if workspace.CurrentRun.Status != tfe.RunApplied {
					t.Fatalf("Expected run status to be `applied`, but is %s", workspace.CurrentRun.Status)
				}
			},
		},
		"workspace auto apply, terraform apply without auto-approve, expect prompt": {
			operations: []operationSets{
				{
					prep: func(t *testing.T, orgName, dir string) {
						wsName := "app"
						_ = createWorkspace(t, orgName, tfe.WorkspaceCreateOptions{
							Name:             tfe.String(wsName),
							TerraformVersion: tfe.String(tfversion.String()),
							AutoApply:        tfe.Bool(true),
						})
						tfBlock := terraformConfigCloudBackendName(orgName, wsName)
						writeMainTF(t, tfBlock, dir)
					},
					commands: []tfCommand{
						{
							command:           []string{"init"},
							expectedCmdOutput: `Terraform Cloud has been successfully initialized!`,
						},
						{
							command:           []string{"apply"},
							expectedCmdOutput: `Do you want to perform these actions in workspace "app"?`,
							userInput:         []string{"yes"},
							postInputOutput:   []string{`Apply complete!`},
						},
					},
				},
			},
			validations: func(t *testing.T, orgName string) {
				workspace, err := tfeClient.Workspaces.ReadWithOptions(ctx, orgName, "app", &tfe.WorkspaceReadOptions{Include: "current_run"})
				if err != nil {
					t.Fatal(err)
				}
				if workspace.CurrentRun == nil {
					t.Fatal("Expected workspace to have run, but got nil")
				}
				if workspace.CurrentRun.Status != tfe.RunApplied {
					t.Fatalf("Expected run status to be `applied`, but is %s", workspace.CurrentRun.Status)
				}
			},
		},
		"workspace manual apply, terraform apply with auto-approve, no prompt": {
			operations: []operationSets{
				{
					prep: func(t *testing.T, orgName, dir string) {
						wsName := "app"
						_ = createWorkspace(t, orgName, tfe.WorkspaceCreateOptions{
							Name:             tfe.String(wsName),
							TerraformVersion: tfe.String(tfversion.String()),
							AutoApply:        tfe.Bool(false),
						})
						tfBlock := terraformConfigCloudBackendName(orgName, wsName)
						writeMainTF(t, tfBlock, dir)
					},
					commands: []tfCommand{
						{
							command:           []string{"init"},
							expectedCmdOutput: `Terraform Cloud has been successfully initialized!`,
						},
						{
							command:           []string{"apply", "-auto-approve"},
							expectedCmdOutput: `Apply complete!`,
						},
					},
				},
			},
			validations: func(t *testing.T, orgName string) {
				workspace, err := tfeClient.Workspaces.ReadWithOptions(ctx, orgName, "app", &tfe.WorkspaceReadOptions{Include: "current_run"})
				if err != nil {
					t.Fatal(err)
				}
				if workspace.CurrentRun == nil {
					t.Fatal("Expected workspace to have run, but got nil")
				}
				if workspace.CurrentRun.Status != tfe.RunApplied {
					t.Fatalf("Expected run status to be `applied`, but is %s", workspace.CurrentRun.Status)
				}
			},
		},
		"workspace auto apply, terraform apply with auto-approve, no prompt": {
			operations: []operationSets{
				{
					prep: func(t *testing.T, orgName, dir string) {
						wsName := "app"
						_ = createWorkspace(t, orgName, tfe.WorkspaceCreateOptions{
							Name:             tfe.String(wsName),
							TerraformVersion: tfe.String(tfversion.String()),
							AutoApply:        tfe.Bool(true),
						})
						tfBlock := terraformConfigCloudBackendName(orgName, wsName)
						writeMainTF(t, tfBlock, dir)
					},
					commands: []tfCommand{
						{
							command:           []string{"init"},
							expectedCmdOutput: `Terraform Cloud has been successfully initialized!`,
						},
						{
							command:           []string{"apply", "-auto-approve"},
							expectedCmdOutput: `Apply complete!`,
						},
					},
				},
			},
			validations: func(t *testing.T, orgName string) {
				workspace, err := tfeClient.Workspaces.ReadWithOptions(ctx, orgName, "app", &tfe.WorkspaceReadOptions{Include: "current_run"})
				if err != nil {
					t.Fatal(err)
				}
				if workspace.CurrentRun == nil {
					t.Fatal("Expected workspace to have run, but got nil")
				}
				if workspace.CurrentRun.Status != tfe.RunApplied {
					t.Fatalf("Expected run status to be `applied`, but is %s", workspace.CurrentRun.Status)
				}
			},
		},
	}
	for name, tc := range cases {
		log.Println("Test: ", name)

		organization, cleanup := createOrganization(t)
		defer cleanup()
		exp, err := expect.NewConsole(expect.WithStdout(os.Stdout), expect.WithDefaultTimeout(expectConsoleTimeout))
		if err != nil {
			t.Fatal(err)
		}
		defer exp.Close()

		tmpDir, err := ioutil.TempDir("", "terraform-test")
		if err != nil {
			t.Fatal(err)
		}
		defer os.RemoveAll(tmpDir)

		tf := e2e.NewBinary(terraformBin, tmpDir)
		tf.AddEnv("TF_LOG=info")
		tf.AddEnv(cliConfigFileEnv)
		defer tf.Close()

		for _, op := range tc.operations {
			op.prep(t, organization.Name, tf.WorkDir())
			for _, tfCmd := range op.commands {
				cmd := tf.Cmd(tfCmd.command...)
				cmd.Stdin = exp.Tty()
				cmd.Stdout = exp.Tty()
				cmd.Stderr = exp.Tty()

				err = cmd.Start()
				if err != nil {
					t.Fatal(err)
				}

				if tfCmd.expectedCmdOutput != "" {
					_, err := exp.ExpectString(tfCmd.expectedCmdOutput)
					if err != nil {
						t.Fatal(err)
					}
				}

				lenInput := len(tfCmd.userInput)
				lenInputOutput := len(tfCmd.postInputOutput)
				if lenInput > 0 {
					for i := 0; i < lenInput; i++ {
						input := tfCmd.userInput[i]
						exp.SendLine(input)
						// use the index to find the corresponding
						// output that matches the input.
						if lenInputOutput-1 >= i {
							output := tfCmd.postInputOutput[i]
							_, err := exp.ExpectString(output)
							if err != nil {
								t.Fatal(err)
							}
						}
					}
				}

				err = cmd.Wait()
				if err != nil {
					t.Fatal(err)
				}
			}
		}

		if tc.validations != nil {
			tc.validations(t, organization.Name)
		}
	}
}