import assert from 'node:assert/strict'
import { mkdir, mkdtemp, rm } from 'node:fs/promises'
import { tmpdir } from 'node:os'
import { join } from 'node:path'
import test from 'node:test'
import sharp from 'sharp'
import {
  createPageCoverThumbnailForImageUrl,
  createPostBodyThumbnailForImageUrl,
  createPostThumbnailForImageUrl,
  getPageCoverThumbnailDiskPath,
  getPostBodyPreviewThumbnailDiskPath,
  getPostBodyThumbnailDiskPath,
  getPostLightboxThumbnailDiskPath,
  getPostThumbnailDiskPath
} from '../server/utils/post-thumbnail-image.js'

test('sharp 파생 이미지 생성 경로는 게시물 카드·본문·페이지 커버 WebP를 만든다', async (t) => {
  const previousPlaywrightTest = process.env.PLAYWRIGHT_TEST
  const previousUploadRoot = process.env.SORI_TEST_UPLOAD_ROOT
  const previousUseRuntimeConfig = globalThis.useRuntimeConfig
  const uploadRoot = await mkdtemp(join(tmpdir(), 'sori-sharp-'))
  const sourceDirectory = join(uploadRoot, 'posts', '2026', '07')
  const sourceUrl = '/uploads/posts/2026/07/sample.png'
  const sourcePath = join(sourceDirectory, 'sample.png')
  const originalWarn = console.warn

  process.env.PLAYWRIGHT_TEST = '1'
  process.env.SORI_TEST_UPLOAD_ROOT = uploadRoot
  globalThis.useRuntimeConfig = () => ({})
  console.warn = (...args) => {
    if (String(args[0] || '').includes('[media-catalog]')) {
      return
    }

    originalWarn(...args)
  }

  t.after(async () => {
    console.warn = originalWarn
    if (previousPlaywrightTest === undefined) {
      delete process.env.PLAYWRIGHT_TEST
    } else {
      process.env.PLAYWRIGHT_TEST = previousPlaywrightTest
    }

    if (previousUploadRoot === undefined) {
      delete process.env.SORI_TEST_UPLOAD_ROOT
    } else {
      process.env.SORI_TEST_UPLOAD_ROOT = previousUploadRoot
    }

    if (previousUseRuntimeConfig === undefined) {
      delete globalThis.useRuntimeConfig
    } else {
      globalThis.useRuntimeConfig = previousUseRuntimeConfig
    }

    await rm(uploadRoot, { recursive: true, force: true })
  })

  await mkdir(sourceDirectory, { recursive: true })
  await sharp({
    create: {
      width: 900,
      height: 600,
      channels: 4,
      background: '#336699ff'
    }
  }).png().toFile(sourcePath)

  assert.equal(await createPostThumbnailForImageUrl(sourceUrl), '/uploads/posts/2026/07/thumbs/sample-card.webp')
  assert.equal(await createPostBodyThumbnailForImageUrl(sourceUrl), '/uploads/posts/2026/07/thumbs/sample-body-1600.webp')
  assert.equal(await createPageCoverThumbnailForImageUrl(sourceUrl), '/uploads/posts/2026/07/thumbs/sample-page-cover.webp')

  const cardMetadata = await sharp(getPostThumbnailDiskPath(sourceUrl)).metadata()
  const bodyMetadata = await sharp(getPostBodyThumbnailDiskPath(sourceUrl)).metadata()
  const previewMetadata = await sharp(getPostBodyPreviewThumbnailDiskPath(sourceUrl)).metadata()
  const lightboxMetadata = await sharp(getPostLightboxThumbnailDiskPath(sourceUrl)).metadata()
  const pageCoverMetadata = await sharp(getPageCoverThumbnailDiskPath(sourceUrl)).metadata()

  assert.equal(cardMetadata.format, 'webp')
  assert.deepEqual([cardMetadata.width, cardMetadata.height], [640, 360])
  assert.equal(bodyMetadata.width, 900)
  assert.equal(previewMetadata.width, 720)
  assert.equal(lightboxMetadata.width, 900)
  assert.deepEqual([pageCoverMetadata.width, pageCoverMetadata.height], [450, 600])
})