package defers

import (
	"fmt"
	"os"
)

func Defers() {
	f := createFile("/tmp/defers.go.txt")
	defer closeFile(f)
	writeFile(f)
}

func createFile(path string) *os.File {
	f, err := os.Create(path)

	if err != nil {
		panic(err)
	}

	return f
}

func closeFile(f *os.File) {
	fmt.Println("Closing file")
	err := f.Close()

	if err != nil {
		fmt.Fprintf(os.Stderr, "something went wrong closing file: %v\n", err)
		os.Exit(1)
	}
}

func writeFile(f *os.File) {
	fmt.Println("Writing something to the file")
	fmt.Fprintln(f, "Hello from defers.go!")
}