package handlers

import (
	"database/sql"
	"strings"

	"github.com/cclohmar/NextExpense/internal/database"
)

// normalizeImagePath strips a legacy "storage/" prefix if present, so that
// the template can safely build "/storage/{filename}" URLs regardless of
// whether the database entry was stored as "uuid.jpg" or "storage/uuid.jpg".
func normalizeImagePath(path string) string {
	return strings.TrimPrefix(path, "storage/")
}

// verifyMonthOwnership checks that a month exists and belongs to the given user.
// If monthID is empty (pre-migration events), returns true since event ownership
// was already verified by the caller.
func verifyMonthOwnership(db *sql.DB, monthID, userID string) bool {
	if monthID == "" {
		return true
	}
	month, err := database.GetMonthByID(db, monthID)
	if err != nil || month == nil {
		return false
	}
	return month.UserID == userID
}