package apk_util

import (
	"github.com/shogo82148/androidbinary/apk"
)

// Info holds basic APK version information.
type Info struct {
	Version     string
	VersionCode int32
}

// Version returns the versionName from an APK's manifest.
func Version(path string) (string, error) {
	a, err := apk.OpenFile(path)
	if err != nil {
		return "", err
	}
	defer a.Close()

	v, err := a.Manifest().VersionName.String()
	if err != nil {
		return "", err
	}

	return v, nil
}

// Read returns version name and version code from an APK's manifest.
func Read(path string) (*Info, error) {
	a, err := apk.OpenFile(path)
	if err != nil {
		return nil, err
	}
	defer a.Close()

	manifest := a.Manifest()

	version, err := manifest.VersionName.String()
	if err != nil {
		return nil, err
	}

	code, err := manifest.VersionCode.Int32()
	if err != nil {
		return nil, err
	}

	return &Info{
		Version:     version,
		VersionCode: code,
	}, nil
}