package store

// PageFilter is the shared pagination query for list endpoints.
type PageFilter struct {
	Page     int `form:"page"`
	PageSize int `form:"page_size"`
}

// Normalize applies defaults: page=1, page_size=20.
func (p *PageFilter) Normalize() {
	if p.Page <= 0 {
		p.Page = 1
	}
	if p.PageSize <= 0 {
		p.PageSize = 20
	}
}

// Offset returns the SQL OFFSET for the current page.
func (p PageFilter) Offset() int {
	return (p.Page - 1) * p.PageSize
}