---
// Lightbox passes a resolved `photo` object from the horizontal-filtered list.
interface Photo {
  file: string
  title?: string
}

/** core/scss/_variables.scss `$aspect-ratios` map keys */
type PhotoRatio = '1x1' | '2x1' | '1x2' | '3x1' | '1x3' | '4x1' | '1x4' | '4x3' | '3x4' | '16x9' | '9x16' | '21x9' | '9x21'

interface Props {
  photo: Photo
  /** background param — plain <div> with only the background-image (no ratio class) */
  background?: boolean
  /** ratio param — img-responsive img-responsive-{ratio} wrapper */
  ratio?: PhotoRatio | undefined
  class?: string
}

const { photo, background, ratio, class: className } = Astro.props

const src = `./static/photos/${photo.file}`
---

<!-- Photo -->{background ? <div class:list={[className]} style={`background-image: url(${src})`} /> : ratio ? <div class:list={['img-responsive', `img-responsive-${ratio}`, className]} style={`background-image: url(${src})`} /> : <img src={src} class:list={[className]} alt={photo.title} />}