package convids

import (
	"fmt"

	"github.com/spf13/pflag"
)

var Help *bool
var Loop *bool
var DryRun *bool

func GetFlags(name string) *pflag.FlagSet {
	flags := pflag.NewFlagSet(name, pflag.ExitOnError)

	Help = flags.BoolP("help", "h", false, "Get Help")
	Loop = flags.BoolP("loop", "l", false, "Loop")
	DryRun = flags.BoolP("dry-run", "d", false, "Do a dry run (won't loop)")

	flags.Usage = func() {
		fmt.Printf("Usage of %s:\n", name)
		flags.PrintDefaults()
	}
	return flags
}

func ParseFlags(name string, args []string) (*pflag.FlagSet, error) {
	flags := GetFlags(name)
	err := flags.Parse(args)
	if err != nil {
		return nil, err
	}

	if *DryRun {
		err := flags.Set("loop", "false")
		if err != nil {
			return nil, err
		}
	}

	return flags, nil
}