/**
 * Phase: upload — OSS 上传
 *
 * 将图片（含首尾帧）和视频上传到 OSS，回写 url / videoUrl
 */

const path = require('path')
const { saveManifest, log, getManifestDir } = require('./pipeline-utils')

async function phaseUpload(manifest, manifestPath) {
  const dir = getManifestDir(manifestPath)
  const { uploadFile } = require('../oss-upload')

  // 图片（含首尾帧 first frame）
  const imageItems = manifest.items.filter(it =>
    it.status === 'done' && it.file && !it.url
  )
  // 视频
  const videoItems = manifest.items.filter(it =>
    it.status === 'done' && it.video && !it.videoUrl
  )

  if (imageItems.length === 0 && videoItems.length === 0) {
    log('upload', '无待上传文件，跳过')
    return
  }

  // 上传图片
  if (imageItems.length > 0) {
    log('upload', `图片: ${imageItems.length} 个`)
    for (let i = 0; i < imageItems.length; i++) {
      const item = imageItems[i]
      const filePath = path.resolve(dir, item.file)
      try {
        const { url } = await uploadFile(filePath)
        item.url = url
        log('upload', `  [${i + 1}/${imageItems.length}] ${item.file} → OK`)
      } catch (err) {
        item.error = `上传失败: ${err.message}`
        log('upload', `  [${i + 1}/${imageItems.length}] 失败: ${err.message}`)
      }
      // 首尾帧模式：上传 lastFrame
      if (item.url && item.lastFrame && !item.lastFrameUrl) {
        const lastPath = path.resolve(dir, item.lastFrame)
        try {
          const { url } = await uploadFile(lastPath)
          item.lastFrameUrl = url
          log('upload', `  [${i + 1}/${imageItems.length}] lastFrame → OK`)
        } catch (err) {
          log('upload', `  [${i + 1}/${imageItems.length}] lastFrame 上传失败: ${err.message}`)
        }
      }
      saveManifest(manifestPath, manifest)
    }
  }

  // 上传视频
  if (videoItems.length > 0) {
    log('upload', `视频: ${videoItems.length} 个`)
    for (let i = 0; i < videoItems.length; i++) {
      const item = videoItems[i]
      const videoPath = path.resolve(dir, item.video)
      try {
        const { url } = await uploadFile(videoPath)
        item.videoUrl = url
        log('upload', `  [${i + 1}/${videoItems.length}] ${item.video} → OK`)
      } catch (err) {
        log('upload', `  [${i + 1}/${videoItems.length}] 失败: ${err.message}`)
      }
      saveManifest(manifestPath, manifest)
    }
  }
}

module.exports = { phaseUpload }