package settings

import (
	"os"
	"path/filepath"
	"regexp"
	"strings"
)

var filepathRegex = regexp.MustCompile(`^.*[/\\].+\.json$`)

func locateSettingsFile(cf string) string {
	if strings.HasPrefix(cf, "~") {
		homeDir, err := os.UserHomeDir()
		if err != nil {
			panic(err)
		}
		cf = homeDir + cf[1:]
	}
	cf = filepath.Clean(os.ExpandEnv(cf))
	if filepathRegex.MatchString(cf) {
		return cf
	}
	return filepath.Join(DryccHome(), "client.json")
}