import assert from "node:assert/strict"
import test from "node:test"
import type { Manual } from "@/lib/manuals-types"
import { sanitizeManualThumbnailsForRuntime } from "@/lib/manuals-render-safety"

function buildManual(overrides: Partial<Manual> = {}): Manual {
  return {
    filename: "test-manual.pdf",
    path: "Test/test-manual.pdf",
    manufacturer: "Test",
    category: "Test",
    ...overrides,
  }
}

test("sanitizeManualThumbnailsForRuntime keeps relative thumbnails in production", () => {
  const manual = buildManual({ thumbnailUrl: "Test/test-manual.jpg" })
  const result = sanitizeManualThumbnailsForRuntime([manual], {
    isLocalDevelopment: false,
    thumbnailsRoot: "/tmp/manuals-thumbnails",
  })

  assert.equal(result[0]?.thumbnailUrl, "Test/test-manual.jpg")
})

test("sanitizeManualThumbnailsForRuntime strips missing relative thumbnails in local development", () => {
  const manual = buildManual({ thumbnailUrl: "Test/missing-thumb.jpg" })
  const result = sanitizeManualThumbnailsForRuntime([manual], {
    isLocalDevelopment: true,
    thumbnailsRoot: "/tmp/manuals-thumbnails",
    fileExists: () => false,
  })

  assert.equal(result[0]?.thumbnailUrl, undefined)
})