/**
 * Command: create-account — 一键创建账号
 *
 * 创建目录结构 → 复制参考图 → 上传 OSS → 生成 account.json + 风格骨架
 */

const fs = require('fs')
const path = require('path')
const { ensureDir, log, ACCOUNTS_DIR } = require('./pipeline-utils')

async function createAccount(args) {
  const { id, name, desc, format, imageModel, videoModel, references } = args

  if (!id) { console.error('错误: 必须指定 --id <账号ID>'); process.exit(1) }
  if (!/^[a-z0-9_-]+$/.test(id)) { console.error('错误: id 只允许小写字母/数字/短横线/下划线'); process.exit(1) }
  if (!name) { console.error('错误: 必须指定 --name <账号名>'); process.exit(1) }

  const accountDir = path.join(ACCOUNTS_DIR, id)
  if (fs.existsSync(accountDir)) { console.error(`错误: 账号已存在: ${accountDir}`); process.exit(1) }

  ensureDir(accountDir)
  ensureDir(path.join(accountDir, 'prompts'))
  ensureDir(path.join(accountDir, 'references'))
  ensureDir(path.join(accountDir, 'styles'))

  // 复制参考图到 references/ 并上传 OSS
  const refs = (references || '').split(',').filter(Boolean)
  const uploadedRefs = []

  if (refs.length > 0) {
    const { uploadFile } = require('../oss-upload')
    for (const refPath of refs) {
      const absPath = path.resolve(refPath)
      if (!fs.existsSync(absPath)) { console.error(`参考图不存在: ${absPath}`); continue }
      const fileName = path.basename(absPath)
      const destPath = path.join(accountDir, 'references', fileName)
      fs.copyFileSync(absPath, destPath)
      try {
        const { url } = await uploadFile(destPath)
        uploadedRefs.push({ file: fileName, url })
        log('account', `参考图 ${fileName} → OK`)
      } catch (err) {
        uploadedRefs.push({ file: fileName })
        log('account', `参考图 ${fileName} 上传失败: ${err.message}（仅保存本地）`)
      }
    }
  }

  // 生成 account.json
  const styleName = args.style || id
  const accountConfig = {
    id,
    name,
    description: desc || '',
    defaultFormat: format || '9:16',
    imageModel: imageModel || 'gemini',
    videoModel: videoModel || '',
    batchSize: 30,
    storyboardPrompt: 'prompts/分镜.md',
    imageStylePrompt: 'prompts/图片提示词.md',
    videoStylePrompt: 'prompts/视频提示词.md',
    capcut: {
      effects: [],
      filter: '',
      subtitleStyle: {
        fontSize: 36,
        color: '#FFFFFF',
        highlightColor: '#FF6B35',
        bold: true,
      },
      defaultBGM: '',
    },
  }

  if (uploadedRefs.length > 0) {
    accountConfig.styles = {
      [styleName]: { references: uploadedRefs },
    }
  }

  const accountPath = path.join(accountDir, 'account.json')
  fs.writeFileSync(accountPath, JSON.stringify(accountConfig, null, 2), 'utf-8')

  // 生成默认风格骨架
  const stylePath = path.join(accountDir, 'styles', `${styleName}.md`)
  const styleContent = [
    `# ${styleName}`,
    '',
    `${desc || name} 的视觉风格。`,
    '',
    '---',
    '',
    '## 图片提示词',
    '',
    '### 核心视觉要素',
    '',
    '（待填充：描述关键视觉元素）',
    '',
    '### 色调方案',
    '',
    '（待填充）',
    '',
    '### 图片 Prompt 模板',
    '',
    '（待填充）',
    '',
    '### 图片禁止项',
    '',
    '- 文字水印',
    '- 字幕覆盖',
    '',
    '---',
    '',
    '## 视频提示词',
    '',
    '### 运镜规则',
    '',
    '（待填充）',
    '',
    '### 视频 Prompt 模板',
    '',
    '（待填充）',
    '',
  ].join('\n')
  fs.writeFileSync(stylePath, styleContent, 'utf-8')

  console.log(`\n账号已创建: ${accountDir}`)
  console.log(`  ID: ${id}`)
  console.log(`  名称: ${name}`)
  console.log(`  模型: ${accountConfig.imageModel} + ${accountConfig.videoModel || '(未指定)'}`)
  console.log(`  参考图: ${uploadedRefs.length} 张（${uploadedRefs.filter(r => r.url).length} 已上传）`)
  console.log(`  风格: ${styleName}`)
  console.log(`\n下一步: 编辑 ${stylePath} 完善提示词策略\n`)

  return accountPath
}

module.exports = { createAccount }