package flag

import (
	"flag"
	"fmt"
	"os"
	"strings"
)

var flaged = make(map[string]interface{})

func IntNoCase(name string, value int, usage string) *int {
	test := fmt.Sprintf("--%s=", name)
	for _, arg := range os.Args {
		if strings.HasPrefix(strings.ToLower(arg), test) || strings.HasPrefix(strings.ToLower(arg), test[1:]) {
			kv := strings.Split(arg, "=")
			realname := strings.TrimLeft(kv[0], "-")
			oldptr, ok := flaged[realname]

			if !ok {
				ptr := flag.Int(realname, value, usage)
				flaged[realname] = ptr
				return ptr
			}

			return oldptr.(*int)
		}
	}

	defval := new(int)
	*defval = value
	return defval
}

func StringNoCase(name string, value string, usage string) *string {
	test := fmt.Sprintf("--%s=", name)
	for _, arg := range os.Args {
		if strings.HasPrefix(strings.ToLower(arg), test) || strings.HasPrefix(strings.ToLower(arg), test[1:]) {
			kv := strings.Split(arg, "=")
			realname := strings.TrimLeft(kv[0], "-")
			oldptr, ok := flaged[realname]
			if !ok {
				ptr := flag.String(realname, value, usage)
				flaged[realname] = ptr
				return ptr
			}

			return oldptr.(*string)
		}
	}

	defval := new(string)
	*defval = value

	return defval
}