// NAME
//   specgen - generates Go code from the UPnP specification files.
//
// DESCRIPTION
//   The specification is available for download from:
//
// OPTIONS
//   -s, --specs_dir=<spec directory>
//     Path to the specification storage directory. This is used to find (and download if not present) the specification ZIP files. Defaults to 'specs'
//   -o, --out_dir=<output directory>
//     Path to the output directory. This is is where the DCP source files will be placed. Should normally correspond to the directory for github.com/huin/goupnp/dcps. Defaults to '../dcps'
//   --nogofmt
//     Disable passing the output through gofmt. Do this if debugging code output problems and needing to see the generated code prior to being passed through gofmt.
func TaskSpecgen(t *tasking.T) {
	specsDir := fallbackStrValue("specs", t.Flags.String("specs_dir"), t.Flags.String("s"))
	if err := os.MkdirAll(specsDir, os.ModePerm); err != nil {
		t.Fatalf("Could not create specs-dir %q: %v\n", specsDir, err)
	}
	outDir := fallbackStrValue("../dcps", t.Flags.String("out_dir"), t.Flags.String("o"))
	useGofmt := !t.Flags.Bool("nogofmt")

NEXT_DCP:
	for _, d := range dcpMetadata {
		specFilename := filepath.Join(specsDir, d.Name+".zip")
		err := acquireFile(specFilename, d.XMLSpecURL)
		if err != nil {
			t.Logf("Could not acquire spec for %s, skipping: %v\n", d.Name, err)
			continue NEXT_DCP
		}
		dcp := newDCP(d)
		if err := dcp.processZipFile(specFilename); err != nil {
			log.Printf("Error processing spec for %s in file %q: %v", d.Name, specFilename, err)
			continue NEXT_DCP
		}
		for i, hack := range d.Hacks {
			if err := hack(dcp); err != nil {
				log.Printf("Error with Hack[%d] for %s: %v", i, d.Name, err)
				continue NEXT_DCP
			}
		}
		dcp.writePackage(outDir, useGofmt)
		if err := dcp.writePackage(outDir, useGofmt); err != nil {
			log.Printf("Error writing package %q: %v", dcp.Metadata.Name, err)
			continue NEXT_DCP
		}
	}
}

// NAME
//    deploy - Deploy the application
//
// DESCRIPTION
//    Build and deploy the application on the device via ant.
//
// OPTIONS
//    --verbose, -v
//        run in verbose mode
func TaskDeploy(t *tasking.T) {
	deployAndroid(t)
	if t.Failed() {
		t.Fatalf("%-20s %s\n", status(t.Failed()), "Build and deploy the application on the device via ant.")
	}
	t.Logf("%-20s %s\n", status(t.Failed()), "Build and deploy the application on the device via ant.")
}

func deployAndroid(t *tasking.T) {
	buildAndroid(t)
	err := t.Exec("ant -f android/build.xml clean debug")
	if err != nil {
		t.Error(err)
	}
	uploadAndroid(t)
}

// NAME
//    say-hello - Say hello to current user
//
// DESCRIPTION
//    Print out hello to current user
//
// OPTIONS
//    --verbose, -v
//        run in verbose mode
func TaskSayHello(t *tasking.T) {
	user, _ := user.Current()
	if t.Flags.Bool("v") || t.Flags.Bool("verbose") {
		t.Logf("Hello %s, the time now is %s\n", user.Name, time.Now())
	} else {
		t.Logf("Hello %s\n", user.Name)
	}
}

func runXorg(t *tasking.T, flags string) {
	err := t.Exec(
		filepath.Join("bin", LibName),
		flags,
	)
	if err != nil {
		t.Error(err)
	}
}

func init() {
	var t *tasking.T

	u, err := user.Current()
	if err != nil {
		t.Fatal(err)
	}
	username = u.Username
}

// NAME
//    build - Build the application
//
// DESCRIPTION
//    Build the application for the given platforms.
//
// OPTIONS
//    --flags=<FLAGS>
//        pass FLAGS to the compiler
//    --verbose, -v
//        run in verbose mode
func TaskBuild(t *tasking.T) {
	for _, platform := range t.Args {
		buildFun[platform](t)
	}
	if t.Failed() {
		t.Fatalf("%-20s %s\n", status(t.Failed()), "Build the application for the given platforms.")
	}
	t.Logf("%-20s %s\n", status(t.Failed()), "Build the application for the given platforms.")
}

func runXorg(t *tasking.T) {
	err := t.Exec(
		filepath.Join("bin", LibName),
		t.Flags.String("flags"),
	)
	if err != nil {
		t.Error(err)
	}
}

// NAME
//    test - Run the tests
//
// DESCRIPTION
//    Build and run the tests on the given platform returning output using logcat.
//
// OPTIONS
//    --flags=<FLAGS>
//        pass the given flags to the executable
//    --verbose, -v
//        run in verbose mode
func TaskTest(t *tasking.T) {
	TaskBuild(t)
	if f, ok := runFun[t.Args[0]]; ok {
		f(t)
	}
	if t.Failed() {
		t.Fatalf("%-20s %s\n", status(t.Failed()), "Run the example on the given platforms.")
	}
	t.Logf("%-20s %s\n", status(t.Failed()), "Run the example on the given platforms.")
}

func runXorg(t *tasking.T) {
	buildXorg(t)
	err := t.Exec(
		filepath.Join("bin", ProjectName),
		t.Flags.String("flags"),
	)
	if err != nil {
		t.Error(err)
	}
}

// NAME
//    test - Run black-box tests
//
// DESCRIPTION
//    Build and run the application on the given platforms.
//
// OPTIONS
//    --flags=<FLAGS>
//        pass the flags to the executable
//    --logcat=Mandala:* stdout:* stderr:* *:S
//        show logcat output (android only)
//    --verbose, -v
//        run in verbose mode
func TaskTest(t *tasking.T) {
	TaskBuild(t)
	for _, platform := range t.Args {
		runFun[platform](t)
	}
	if t.Failed() {
		t.Fatalf("%-20s %s\n", status(t.Failed()), "Run the application on the given platforms.")
	}
	t.Logf("%-20s %s\n", status(t.Failed()), "Run the application on the given platforms.")
}

func buildXorg(t *tasking.T) {
	err := t.Exec(
		`sh -c "`,
		"GOPATH=`pwd`:$GOPATH",
		`go get`, t.Flags.String("flags"),
		LibName, `"`,
	)
	if err != nil {
		t.Error(err)
	}
}

func buildXorg(t *tasking.T) {
	err := t.Exec(
		`sh -c "`,
		"GOPATH=`pwd`:$GOPATH",
		`go install`, t.Flags.String("buildflags"),
		ProjectName, `"`,
	)
	if err != nil {
		t.Error(err)
	}
}

// NAME
//    release - Build the application in 'release mode'
//
// DESCRIPTION
//    Build the application for Android in 'release mode'.
//
// OPTIONS
//    --flags=<FLAGS>
//        pass FLAGS to the compiler
//    --verbose, -v
//        run in verbose mode
func TaskRelease(t *tasking.T) {
	// Build app in 'release mode'
	buildAndroid(t, true)
	// Sign and 'zipalign' app
	signAndroid(t)
	// Check task
	if t.Failed() {
		t.Fatalf("%-20s %s\n", status(t.Failed()), "Release the application for Android.")
	}
	t.Logf("%-20s %s\n", status(t.Failed()), "Release the application for Android.")
}

// NAME
//    say-hello - Say hello to current user
//
// DESCRIPTION
//    Print out hello to current user
//
// OPTIONS
//    -n, --name="NAME"
//        say hello to an user with the given NAME
//    -v, --verbose
//        run in verbose mode
func TaskSayHello(t *tasking.T) {
	username := t.Flags.String("name")
	if username == "" {
		user, _ := user.Current()
		username = user.Name
	}

	if t.Flags.Bool("verbose") {
		t.Logf("Hello %s, the time now is %s\n", username, time.Now())
	} else {
		t.Logf("Hello %s\n", username)
	}
}

// NAME
//   specgen - generates Go code from the UPnP specification files.
//
// DESCRIPTION
//   The specification is available for download from:
//
// OPTIONS
//   -s, --spec_filename=<upnpresources.zip>
//     Path to the specification file, available from http://upnp.org/resources/upnpresources.zip
//   -o, --out_dir=<output directory>
//     Path to the output directory. This is is where the DCP source files will be placed. Should normally correspond to the directory for github.com/huin/goupnp/dcps
//   --nogofmt
//     Disable passing the output through gofmt. Do this if debugging code output problems and needing to see the generated code prior to being passed through gofmt.
func TaskSpecgen(t *tasking.T) {
	specFilename := t.Flags.String("spec-filename")
	if specFilename == "" {
		specFilename = t.Flags.String("s")
	}
	if specFilename == "" {
		t.Fatal("--spec_filename is required")
	}
	outDir := t.Flags.String("out-dir")
	if outDir == "" {
		outDir = t.Flags.String("o")
	}
	if outDir == "" {
		log.Fatal("--out_dir is required")
	}
	useGofmt := !t.Flags.Bool("nogofmt")

	specArchive, err := openZipfile(specFilename)
	if err != nil {
		t.Fatalf("Error opening spec file: %v", err)
	}
	defer specArchive.Close()

	dcpCol := newDcpsCollection()
	for _, f := range globFiles("standardizeddcps/*/*.zip", specArchive.Reader) {
		dirName := strings.TrimPrefix(f.Name, "standardizeddcps/")
		slashIndex := strings.Index(dirName, "/")
		if slashIndex == -1 {
			// Should not happen.
			t.Logf("Could not find / in %q", dirName)
			return
		}
		dirName = dirName[:slashIndex]

		dcp := dcpCol.dcpForDir(dirName)
		if dcp == nil {
			t.Logf("No alias defined for directory %q: skipping %s\n", dirName, f.Name)
			continue
		} else {
			t.Logf("Alias found for directory %q: processing %s\n", dirName, f.Name)
		}

		dcp.processZipFile(f)
	}

	for _, dcp := range dcpCol.dcpByAlias {
		if err := dcp.writePackage(outDir, useGofmt); err != nil {
			log.Printf("Error writing package %q: %v", dcp.Metadata.Name, err)
		}
	}
}

func buildXorg(t *tasking.T, buildAll bool) {
	allFlagString := ""
	if buildAll {
		allFlagString = "-a"
	}
	err := t.Exec(
		`sh -c "`,
		"GOPATH=`pwd`:$GOPATH",
		`go install`, allFlagString,
		LibName, `"`,
	)
	if err != nil {
		t.Error(err)
	}
}

// NAME
//    cross-compile - cross-compiles gh for current platform.
//
// DESCRIPTION
//    Cross-compiles gh for current platform. Build artifacts will be in target/VERSION
func TaskCrossCompile(t *tasking.T) {
	t.Logf("Cross-compiling gh for %s...\n", runtime.GOOS)
	t.Logf("GOPATH=%s\n", os.Getenv("GOPATH"))
	err := t.Exec("goxc", "-wd=.", "-os="+runtime.GOOS, "-c="+runtime.GOOS)
	if err != nil {
		t.Fatalf("Can't cross-compile gh: %s\n", err)
	}
}

// NAME
//   generate files for 'model_task.go'
func TaskInit(t *tasking.T) {
	newTestdata := false
	src := "model_task.go"

	srcInfo, err := os.Stat(src)
	if err != nil {
		t.Fatal(err)
	}
	dstInfo, err := os.Stat(filepath.Join("model", "sqlmodel.go"))
	if err != nil {
		newTestdata = true
	}

	if err := os.Chdir("test"); err != nil {
		t.Fatal(err)
	}
	if newTestdata || srcInfo.ModTime().After(dstInfo.ModTime()) {
		taskBuildModel(t)
	}
}

func runAndroid(t *tasking.T) {
	buildAndroid(t)
	deployAndroid(t)
	err := t.Exec(
		fmt.Sprintf(
			"adb shell am start -a android.intent.action.MAIN -n net.mandala.%s/android.app.NativeActivity",
			ProjectName,
		))
	if err != nil {
		t.Error(err)
	}
	err = t.Exec("adb shell logcat", "Mandala:* stdout:* stderr:* *:S")
	if err != nil {
		t.Error(err)
	}
}