package command

import (
	"strings"
	"testing"

	"github.com/hashicorp/nomad/ci"
	"github.com/hashicorp/nomad/nomad/mock"
	structs "github.com/hashicorp/nomad/nomad/structs"
	"github.com/mitchellh/cli"
	"github.com/posener/complete"
	"github.com/stretchr/testify/assert"
)

func TestJobRevertCommand_Implements(t *testing.T) {
	ci.Parallel(t)
	var _ cli.Command = &JobDispatchCommand{}
}

func TestJobRevertCommand_Fails(t *testing.T) {
	ci.Parallel(t)
	ui := cli.NewMockUi()
	cmd := &JobRevertCommand{Meta: Meta{Ui: ui}}

	// Fails on misuse
	if code := cmd.Run([]string{"some", "bad", "args"}); code != 1 {
		t.Fatalf("expected exit code 1, got: %d", code)
	}
	if out := ui.ErrorWriter.String(); !strings.Contains(out, commandErrorText(cmd)) {
		t.Fatalf("expected help output, got: %s", out)
	}
	ui.ErrorWriter.Reset()

	if code := cmd.Run([]string{"-address=nope", "foo", "1"}); code != 1 {
		t.Fatalf("expected exit code 1, got: %d", code)
	}
	if out := ui.ErrorWriter.String(); !strings.Contains(out, "Error listing jobs") {
		t.Fatalf("expected failed query error, got: %s", out)
	}
	ui.ErrorWriter.Reset()
}

func TestJobRevertCommand_AutocompleteArgs(t *testing.T) {
	ci.Parallel(t)
	assert := assert.New(t)

	srv, _, url := testServer(t, true, nil)
	defer srv.Shutdown()

	ui := cli.NewMockUi()
	cmd := &JobRevertCommand{Meta: Meta{Ui: ui, flagAddress: url}}

	// Create a fake job
	state := srv.Agent.Server().State()
	j := mock.Job()
	assert.Nil(state.UpsertJob(structs.MsgTypeTestSetup, 1000, j))

	prefix := j.ID[:len(j.ID)-5]
	args := complete.Args{Last: prefix}
	predictor := cmd.AutocompleteArgs()

	res := predictor.Predict(args)
	assert.Equal(1, len(res))
	assert.Equal(j.ID, res[0])
}