package player

import (
	"crypto/rand"
	"crypto/sha256"
	"encoding/base64"
	"fmt"
	"strings"
)

func HashPassword(password string) (string, error) {
	salt := make([]byte, 16)
	if _, err := rand.Read(salt); err != nil {
		return "", err
	}
	hash := sha256.Sum256(append(salt, []byte(password)...))
	return fmt.Sprintf("sha256:%s:%x", base64.RawStdEncoding.EncodeToString(salt), hash), nil
}

func CheckPassword(password, stored string) bool {
	parts := strings.SplitN(stored, ":", 3)
	if len(parts) != 3 || parts[0] != "sha256" {
		return false
	}
	salt, err := base64.RawStdEncoding.DecodeString(parts[1])
	if err != nil {
		return false
	}
	hash := sha256.Sum256(append(salt, []byte(password)...))
	expected := fmt.Sprintf("%x", hash)
	return parts[2] == expected
}