@spec resolve_url(map(), :small | :card | :medium) :: String.t() | nil

Resolves the best thumbnail URL for a media file.

Returns nil when no suitable URL is available.

Examples

resolve_url(file)           # small thumbnail
resolve_url(file, :medium)  # medium preview

Resolves the best thumbnail URL for a media file.

Size modes:

• :small (default) — tiny cells (list rows, selectors): prefers the baked Etcher thumbnail, then the 150px thumbnail
• :card — large grid/stack cards: prefers the baked Etcher thumbnail (400px), then the 300px small, then medium; only after those falls back to the light 150px thumbnail, keeping the full-res original (which would force a live vector overlay) as the last resort
• :medium — for gallery/preview: prefers medium/thumbnail variants

Attributes

• file - Media file map with file_type and urls fields (required)
• size - Thumbnail size preference: :small, :card, or :medium (default: :small)

Examples

<.thumbnail_url file={file} :let={url}>
  <img src={url} />
</.thumbnail_url>

<.thumbnail_url file={file} size={:medium} :let={url}>
  <img src={url} />
</.thumbnail_url>

Attributes

• file (:map) (required)
• size (:atom) - Defaults to :small. Must be one of :small, :card, or :medium.

Slots

• inner_block (required)