/*

	Open a file, directory, or URI using the OS's default
	application for that object type.  Optionally, you can
	specify an application to use.

	This is a proxy for the following commands:

	         OSX: "open"
	     Windows: "start"
	 Linux/Other: "xdg-open"

	This is a golang port of the node.js module: https://github.com/pwnall/node-open

*/
package open

import (
	"os/exec"
	"path"
	"runtime"
)

/*
	Open a file, directory, or URI using the OS's default
	application for that object type. Wait for the open
	command to complete.
*/
func Run(input string) error {
	return open(input).Run()
}

/*
	Open a file, directory, or URI using the OS's default
	application for that object type. Don't wait for the
	open command to complete.
*/
func Start(input string) error {
	return open(input).Start()
}

/*
	Open a file, directory, or URI using the specified application.
	Wait for the open command to complete.
*/
func RunWith(input string, appName string) error {
	return openWith(input, appName).Run()
}

/*
	Open a file, directory, or URI using the specified application.
	Don't wait for the open command to complete.
*/
func StartWith(input string, appName string) error {
	return openWith(input, appName).Start()
}

func open(input string) *exec.Cmd {
	switch runtime.GOOS {
	case "darwin":
		return exec.Command("open", input)
	case "windows":
		return exec.Command("start", "", input)
	default:
		_, file, _, _ := runtime.Caller(0)
		app := path.Join(path.Dir(file), "..", "vendor", "xdg-open")
		return exec.Command(app, input)
	}
}

func openWith(input string, appName string) *exec.Cmd {
	switch runtime.GOOS {
	case "darwin":
		return exec.Command("open", "-a", appName, input)
	case "windows":
		return exec.Command("start", "", appName, input)
	default:
		return exec.Command(appName, input)
	}
}