package util

import (
	"fmt"
	"reflect"
	"strings"

	"github.com/coreos/go-semver/semver"
)

const (
	WorkerThreads = 50
)

func StrToSemVer(version string) (*semver.Version, error) {
	v, err := semver.NewVersion(strings.TrimPrefix(version, "v"))
	if err != nil {
		return nil, err
	}
	return v, nil
}

func GetObjectQueue(l interface{}) chan interface{} {
	s := reflect.ValueOf(l)
	c := make(chan interface{}, s.Len())

	for i := 0; i < s.Len(); i++ {
		c <- s.Index(i).Interface()
	}
	close(c)
	return c
}

func ErrList(e []error) error {
	if len(e) > 0 {
		return fmt.Errorf("%v", e)
	}
	return nil
}