package repositories

import (
	"fmt"
	"os"

	"github.com/msteinert/pam"
)

type PamRepository struct{}

func NewPamRepository() *PamRepository {
	return &PamRepository{}
}

func (pr *PamRepository) IsValidUser(user, password string) bool {
	tx, err := pam.StartFunc("virteen", user, func(s pam.Style, msg string) (string, error) {
		return password, nil
	})
	if err != nil {
		panic("failed to start PAM transaction")
	}

	err = tx.Authenticate(pam.Silent)
	if err != nil {
		fmt.Fprintf(os.Stderr, "authenticate: %s\n", err.Error())
		return false
	}

	return true
}