import assert from "node:assert/strict"
import test from "node:test"
import { deriveThumbnailPathFromManualPath } from "@/lib/manuals-thumbnail-fallback"

test("deriveThumbnailPathFromManualPath derives jpg path from relative manual path", () => {
  assert.equal(
    deriveThumbnailPathFromManualPath("Royal-Vendors/vender-3.pdf"),
    "Royal-Vendors/vender-3.jpg"
  )
})

test("deriveThumbnailPathFromManualPath returns undefined for absolute URLs", () => {
  assert.equal(
    deriveThumbnailPathFromManualPath("https://example.com/manuals/file.pdf"),
    undefined
  )
})

test("deriveThumbnailPathFromManualPath returns undefined for non-pdf paths", () => {
  assert.equal(
    deriveThumbnailPathFromManualPath("Royal-Vendors/not-a-pdf.txt"),
    undefined
  )
})