// +build integration

package tests

import (
	"fmt"
	"math/rand"
	"os"
	"testing"

	"github.com/deis/deis/tests/utils"
)

var (
	appsCreateCmd          = "apps:create {{.AppName}}"
	appsCreateCmdNoRemote  = "apps:create {{.AppName}} --no-remote"
	appsCreateCmdBuildpack = "apps:create {{.AppName}} --buildpack https://example.com"
	appsListCmd            = "apps:list"
	appsRunCmd             = "apps:run echo Hello, 世界"
	appsOpenCmd            = "apps:open --app={{.AppName}}"
	appsLogsCmd            = "apps:logs --app={{.AppName}}"
	appsLogsLimitCmd       = "apps:logs --app={{.AppName}} -n 1"
	appsInfoCmd            = "apps:info --app={{.AppName}}"
	appsDestroyCmd         = "apps:destroy --app={{.AppName}} --confirm={{.AppName}}"
	appsDestroyCmdNoApp    = "apps:destroy --confirm={{.AppName}}"
	appsTransferCmd        = "apps:transfer {{.NewOwner}} --app={{.AppName}}"
)

func randomString(n int) string {
	var letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
	b := make([]rune, n)
	for i := range b {
		b[i] = letters[rand.Intn(len(letters))]
	}
	return string(b)
}

func TestApps(t *testing.T) {
	params := appsSetup(t)
	appsCreateTest(t, params)
	appsListTest(t, params, false)
	appsLogsTest(t, params)
	appsInfoTest(t, params)
	appsRunTest(t, params)
	appsOpenTest(t, params)
	appsDestroyTest(t, params)
	appsListTest(t, params, true)
	appsTransferTest(t, params)
}

func appsSetup(t *testing.T) *utils.DeisTestConfig {
	cfg := utils.GetGlobalConfig()
	cfg.AppName = "appssample"
	utils.Execute(t, authLoginCmd, cfg, false, "")
	utils.Execute(t, gitCloneCmd, cfg, false, "")
	return cfg
}

func appsCreateTest(t *testing.T, params *utils.DeisTestConfig) {
	wd, _ := os.Getwd()
	defer os.Chdir(wd)
	if err := utils.Chdir(params.ExampleApp); err != nil {
		t.Fatal(err)
	}
	// TODO: move --buildpack to client unit tests
	utils.Execute(t, appsCreateCmdBuildpack, params, false, "BUILDPACK_URL")
	utils.Execute(t, appsDestroyCmdNoApp, params, false, "")
	utils.Execute(t, appsCreateCmd, params, false, "")
	utils.Execute(t, appsCreateCmd, params, true, "This field must be unique.")
}

func appsDestroyTest(t *testing.T, params *utils.DeisTestConfig) {
	if err := utils.Chdir(params.ExampleApp); err != nil {
		t.Fatal(err)
	}
	utils.Execute(t, appsDestroyCmd, params, false, "")
	if err := utils.Chdir(".."); err != nil {
		t.Fatal(err)
	}
	if err := utils.Rmdir(params.ExampleApp); err != nil {
		t.Fatal(err)
	}
}

func appsInfoTest(t *testing.T, params *utils.DeisTestConfig) {
	utils.Execute(t, appsInfoCmd, params, false, "")
}

func appsListTest(t *testing.T, params *utils.DeisTestConfig, notflag bool) {
	utils.CheckList(t, appsListCmd, params, params.AppName, notflag)
}

func appsLogsTest(t *testing.T, params *utils.DeisTestConfig) {
	cmd := appsLogsCmd
	// test for application lifecycle logs
	utils.Execute(t, cmd, params, false, "204 NO CONTENT")
	if err := utils.Chdir(params.ExampleApp); err != nil {
		t.Fatal(err)
	}
	utils.Execute(t, gitPushCmd, params, false, "")
	utils.CurlApp(t, *params)
	utils.Execute(t, cmd, params, false, "created initial release")
	utils.Execute(t, cmd, params, false, "listening on 5000...")

	utils.Execute(t, appsLogsLimitCmd, params, false, "")

	if err := utils.Chdir(".."); err != nil {
		t.Fatal(err)
	}
}

func appsOpenTest(t *testing.T, params *utils.DeisTestConfig) {
	utils.CurlApp(t, *params)
	utils.CurlWithFail(t, fmt.Sprintf("http://%s.%s", "this-app-does-not-exist", params.Domain), true, "404 Not Found")
}

func appsRunTest(t *testing.T, params *utils.DeisTestConfig) {
	cmd := appsRunCmd
	if err := utils.Chdir(params.ExampleApp); err != nil {
		t.Fatal(err)
	}
	utils.CheckList(t, cmd, params, "Hello, 世界", false)
	utils.Execute(t, "apps:run env", params, true, "GIT_SHA")
	// run a REALLY large command to test https://github.com/deis/deis/issues/2046
	largeString := randomString(1024)
	utils.Execute(t, "apps:run echo "+largeString, params, false, largeString)
	if err := utils.Chdir(".."); err != nil {
		t.Fatal(err)
	}
	utils.Execute(t, cmd, params, true, "Not found")
}

func appsTransferTest(t *testing.T, params *utils.DeisTestConfig) {
	user := utils.GetGlobalConfig()
	user.UserName, user.Password = "app-transfer-test", "test"
	user.AppName = "transfer-test"
	user.NewOwner = params.UserName
	utils.Execute(t, authRegisterCmd, user, false, "")
	utils.Execute(t, authLoginCmd, user, false, "")
	utils.Execute(t, appsCreateCmdNoRemote, user, false, "")
	utils.Execute(t, appsTransferCmd, user, false, "")
	utils.Execute(t, appsInfoCmd, user, true, "403 FORBIDDEN")
	utils.Execute(t, authLoginCmd, params, false, "")
	params.AppName = user.AppName
	utils.CheckList(t, appsInfoCmd, params, params.UserName, false)
}