package config

import (
	"fmt"
	"os"
)

func panicIfErr(e error) {
	if e != nil {
		panic(e)
	}
}

func touchFile(file string) {
	fi, err := os.Stat(file)
	if err != nil {
		f, err := os.OpenFile(file, os.O_CREATE, 0644)
		if err != nil {
			panic(fmt.Errorf("unable to create file %s", file))
		}
		f.Close()
	} else if fi.IsDir() {
		panic(fmt.Errorf("%s is a directory", file))
	} else if os.Geteuid() != 1001 {
		// UID 1001 is the hardcoded uid for mirror
		err := os.Chown(file, 1001, os.Getegid())
		panicIfErr(err)
	} else if fi.Mode().Perm() != 0644 {
		err := os.Chmod(file, 0644)
		panicIfErr(err)
	}
}

func touchFiles(files ...string) {
	for _, file := range files {
		touchFile(file)
	}
}