/**
 * Phase: upload — OSS 上传
 *
 * 将生成的图片（含首尾帧）上传到 OSS，回写 url
 */

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')

  const items = manifest.items.filter(it =>
    it.status === 'done' && it.file && !it.url
  )
  if (items.length === 0) { log('upload', '无待上传 item，跳过'); return }

  log('upload', `共 ${items.length} 个文件`)

  for (let i = 0; i < items.length; i++) {
    const item = items[i]
    const filePath = path.resolve(dir, item.file)
    try {
      const { url } = await uploadFile(filePath)
      item.url = url
      log('upload', `[${i + 1}/${items.length}] ${item.file} → ${url.substring(0, 60)}...`)
    } catch (err) {
      item.error = `上传失败: ${err.message}`
      log('upload', `[${i + 1}/${items.length}] 失败: ${err.message}`)
    }
    if (item.url && item.lastFrame && !item.lastFrameUrl) {
      const lastPath = path.resolve(dir, item.lastFrame)
      try {
        const { url } = await uploadFile(lastPath)
        item.lastFrameUrl = url
        log('upload', `[${i + 1}/${items.length}] lastFrame → OK`)
      } catch (err) {
        log('upload', `[${i + 1}/${items.length}] lastFrame 上传失败: ${err.message}`)
      }
    }
    saveManifest(manifestPath, manifest)
  }
}

module.exports = { phaseUpload }