package indexer

import (
	"errors"
	"path"
	"reflect"
	"strconv"
	"strings"
)

func getType(v interface{}) (reflect.Value, error) {
	rv := reflect.ValueOf(v)
	for rv.Kind() == reflect.Ptr || rv.Kind() == reflect.Interface {
		rv = rv.Elem()
	}
	if !rv.IsValid() {
		return reflect.Value{}, errors.New("failed to read value via reflection")
	}

	return rv, nil
}

func getTypeFQN(t interface{}) string {
	typ, _ := getType(t)
	typeName := path.Join(typ.Type().PkgPath(), typ.Type().Name())
	typeName = strings.ReplaceAll(typeName, "/", ".")
	return typeName
}

func valueOf(v interface{}, field string) string {
	r := reflect.ValueOf(v)
	f := reflect.Indirect(r).FieldByName(field)

	if f.Kind() == reflect.String {
		return f.String()
	}
	if f.IsZero() {
		return ""
	}
	return strconv.Itoa(int(f.Int()))
}