// 端到端测试：配合 scripts/mock-llm.mjs 跑通完整写作流程
// 用法：node scripts/e2e.mjs <appBaseUrl> <mockBaseUrl> [角色卡.png]
import { readFileSync } from 'node:fs'
import assert from 'node:assert/strict'

const [app = 'http://localhost:3000', mock = 'http://localhost:4010/v1', cardPath] = process.argv.slice(2)

async function api(path, method = 'GET', body) {
  const res = await fetch(app + path, {
    method,
    headers: body instanceof FormData || body === undefined ? undefined : { 'Content-Type': 'application/json' },
    body: body instanceof FormData ? body : body === undefined ? undefined : JSON.stringify(body)
  })
  const text = await res.text()
  if (!res.ok) throw new Error(`${method} ${path} → ${res.status} ${text}`)
  try { return JSON.parse(text) }
  catch { return text }
}

const sleep = ms => new Promise(r => setTimeout(r, ms))
async function waitIdle(pid, timeout = 30000) {
  const start = Date.now()
  await sleep(150)
  while (Date.now() - start < timeout) {
    const p = await api(`/api/projects/${pid}`)
    if (!p.running) return p
    await sleep(200)
  }
  throw new Error('等待任务完成超时')
}
const step = msg => console.log(`✔ ${msg}`)

// 1. API 连接与模型
const mockRoot = mock.replace(/\/v1$/, '')
const pulled = await api('/api/providers/remote-models', 'POST', { type: 'openai-compatible', baseUrl: mockRoot, apiKey: 'test-key' })
assert.deepEqual(pulled.models, ['mock-editor', 'mock-writer-trunc'])
assert.equal(pulled.baseUrl, mockRoot + '/v1', '漏写 /v1 时应自动补全')
const provider = await api('/api/providers', 'POST', { type: 'openai-compatible', baseUrl: pulled.baseUrl, apiKey: 'test-key', models: [...pulled.models, 'extra-model'] })
const providers = await api('/api/providers')
const savedProvider = providers.find(p => p.id === provider.id)
assert.equal(savedProvider.name, new URL(mock).host, '未填名称时使用域名')
assert.ok(!JSON.stringify(providers).includes('test-key'), '接口不应返回明文 Key')
const pulledAgain = await api('/api/providers/remote-models', 'POST', { type: 'openai-compatible', baseUrl: pulled.baseUrl, providerId: provider.id })
assert.equal(pulledAgain.models.length, 2, '编辑时不填 Key 应使用已保存的 Key')
const synced = await api(`/api/providers/${provider.id}`, 'PUT', { models: pulled.models })
assert.equal(synced.removed, 1)
let allModels = (await api('/api/models')).filter(m => m.providerId === provider.id)
assert.deepEqual(allModels.map(m => m.modelId).sort(), ['mock-editor', 'mock-writer-trunc'])
const editorModel = allModels.find(m => m.modelId === 'mock-editor')
const writerModel = allModels.find(m => m.modelId === 'mock-writer-trunc')
await api(`/api/models/${writerModel.id}`, 'PUT', { label: '模拟作家', maxOutputTokens: 4096 })
const test = await api(`/api/models/${editorModel.id}/test`, 'POST', {})
assert.equal(test.ok, true, JSON.stringify(test))
step('API 连接：拉取模型（自动补全 /v1）、批量保存、同步、连接测试')

// 2. 项目与设定
const { id: pid } = await api('/api/projects', 'POST', { title: 'E2E 测试作品' })
await api(`/api/projects/${pid}`, 'PUT', {
  worldSetting: '2011 年的昆明，雨季。',
  storyOutline: '主角回到昆明，与旧识简琳琅重逢，逐步揭开百鸟县的往事。',
  userName: '陈默'
})
const agents = await api(`/api/projects/${pid}/agents`)
assert.equal(agents.length, 3)
const editor = agents.find(a => a.role === 'editor')
const writer = agents.find(a => a.role === 'writer')
await api(`/api/agents/${editor.id}`, 'PUT', { modelId: editorModel.id, systemPrompt: '你是一位苛刻的主编。' })
await api(`/api/agents/${writer.id}`, 'PUT', { modelId: writerModel.id, styleNotes: '氛围描写' })
await api(`/api/agents/${agents.find(a => a.role === 'summarizer').id}`, 'PUT', { modelId: editorModel.id })
const writer2 = await api(`/api/projects/${pid}/agents`, 'POST', { role: 'writer', name: '作家二号', modelId: writerModel.id })
step('项目/AI 团队配置')

// 3. 角色卡导入
if (cardPath) {
  const buf = readFileSync(cardPath)
  const fd = new FormData()
  fd.append('file', new Blob([buf], { type: 'image/png' }), 'card.png')
  const preview = await api(`/api/projects/${pid}/cards/preview`, 'POST', fd)
  assert.ok(preview.name)
  assert.ok(preview.lore.length > 0)
  const fd2 = new FormData()
  fd2.append('file', new Blob([buf], { type: 'image/png' }), 'card.png')
  fd2.append('options', JSON.stringify({ identity: '女主角' }))
  const imported = await api(`/api/projects/${pid}/cards/import`, 'POST', fd2)
  const chars = await api(`/api/projects/${pid}/characters`)
  assert.equal(chars.length, 1)
  assert.equal(chars[0].name, preview.name)
  assert.ok(chars[0].avatar)
  const lore = await api(`/api/projects/${pid}/lore`)
  assert.equal(lore.length, imported.loreCount)
  const avatar = await fetch(`${app}/api/avatars/${pid}/${chars[0].avatar}`)
  assert.equal(avatar.status, 200)
  step(`角色卡导入：${preview.name}（${preview.spec}，世界书 ${lore.length} 条）`)
}

// 4. SSE 监听
const events = []
const ac = new AbortController()
;(async () => {
  try {
    const res = await fetch(`${app}/api/projects/${pid}/events`, { signal: ac.signal })
    const reader = res.body.getReader()
    const dec = new TextDecoder()
    let buf = ''
    for (;;) {
      const { value, done } = await reader.read()
      if (done) break
      buf += dec.decode(value, { stream: true })
      let i
      while ((i = buf.indexOf('\n\n')) >= 0) {
        const block = buf.slice(0, i)
        buf = buf.slice(i + 2)
        const data = block.split('\n').filter(l => l.startsWith('data:')).map(l => l.slice(5).trim()).join('')
        if (data && !block.includes('event: ping')) events.push(JSON.parse(data))
      }
    }
  }
  catch {}
})()
await sleep(300)

// 5. 继续下一章（逐章模式）：规划 → 简报 → 写作 → 暂停
await api(`/api/projects/${pid}/run`, 'POST', {})
await waitIdle(pid)
let chapters = await api(`/api/projects/${pid}/chapters`)
assert.equal(chapters.length, 3, '主编应规划 3 章')
assert.equal(chapters[0].status, 'written')
assert.equal(chapters[1].status, 'planned')
let ch1 = await api(`/api/chapters/${chapters[0].id}`)
assert.ok(ch1.brief.includes('情节要点'))
assert.equal(ch1.title, '雨落昆明')
assert.equal(ch1.writerAgentId, writer.id)
assert.ok(ch1.content.includes('百鸟县'), '自动续写后应包含续写内容')
assert.equal(ch1.versions.length, 1)
const deltas = events.filter(e => e.type === 'delta' && e.chapterId === ch1.id).map(e => e.text).join('')
assert.equal(deltas, ch1.content, 'SSE 推送的增量应与文件内容一致')
step(`逐章模式写完第1章（${ch1.versions[0].wordCount} 字，SSE 增量 ${events.filter(e => e.type === 'delta').length} 条）`)

// 6. 待确认时不能继续
const blocked = await api(`/api/projects/${pid}/run`, 'POST', {})
await waitIdle(pid)
chapters = await api(`/api/projects/${pid}/chapters`)
assert.equal(chapters[1].status, 'planned', '第1章未确认时不应开始第2章')
assert.ok(blocked.started)

// 7. 确认并继续
await api(`/api/chapters/${ch1.id}/approve`, 'POST', { continue: true })
await waitIdle(pid)
ch1 = await api(`/api/chapters/${ch1.id}`)
assert.equal(ch1.status, 'approved')
assert.ok(ch1.summary.includes('百鸟县'))
let project = await api(`/api/projects/${pid}`)
assert.equal(project.memory.characterStates.length, 1)
assert.equal(project.memory.foreshadowing.length, 1)
assert.equal(project.memory.timeline.length, 1)
chapters = await api(`/api/projects/${pid}/chapters`)
assert.equal(chapters[1].status, 'written')
step('确认第1章 → 摘要与故事记忆已更新 → 第2章写完')

// 8. 手动锁定作家
await api(`/api/chapters/${chapters[2].id}`, 'PUT', { writerAgentId: writer2.id, writerLocked: true })

// 9. 审稿与修改
const ch2Id = chapters[1].id
await api(`/api/chapters/${ch2Id}/review`, 'POST', {})
await waitIdle(pid)
let ch2 = await api(`/api/chapters/${ch2Id}`)
assert.ok(ch2.reviewNotes.includes('总评分'))
await api(`/api/chapters/${ch2Id}/write`, 'POST', { feedback: ch2.reviewNotes, revise: true })
await waitIdle(pid)
ch2 = await api(`/api/chapters/${ch2Id}`)
assert.equal(ch2.versions.length, 2)
assert.equal(ch2.activeVersionId, ch2.versions[0].id)
const writeJob = (await api(`/api/projects/${pid}/jobs`)).find(j => j.type === 'write' && j.chapterId === ch2Id)
const writeJobDetail = await api(`/api/jobs/${writeJob.id}`)
assert.ok(writeJobDetail.prompt.prompt.includes('revision_feedback'))
assert.ok(writeJobDetail.prompt.prompt.includes('previous_draft'))
step('主编审稿 → 按意见修改生成 v2')

// 10. 自动模式
await api(`/api/projects/${pid}`, 'PUT', { settings: { ...project.settings, autoMode: true, autoChapterLimit: 1 } })
await api(`/api/projects/${pid}/run`, 'POST', {})
await waitIdle(pid)
chapters = await api(`/api/projects/${pid}/chapters`)
assert.equal(chapters[1].status, 'approved', '自动模式应自动确认第2章')
assert.equal(chapters[2].status, 'written')
const ch3 = await api(`/api/chapters/${chapters[2].id}`)
assert.equal(ch3.writerAgentId, writer2.id, '锁定的作家不应被主编更换')
const briefJob = (await api(`/api/projects/${pid}/jobs`)).find(j => j.type === 'brief' && j.chapterId === ch3.id)
const briefDetail = await api(`/api/jobs/${briefJob.id}`)
assert.ok(briefDetail.prompt.system.startsWith('<highest_priority_instructions>'), '用户自定义提示词应位于最前')
assert.ok(briefDetail.prompt.prompt.includes('简琳琅') || !cardPath)
step('自动模式：自动确认第2章并写完第3章（遵守章节上限与作家锁定）')

// 11. 停止
await api(`/api/chapters/${chapters[2].id}/write`, 'POST', {})
await sleep(100)
await api(`/api/projects/${pid}/stop`, 'POST', {})
await waitIdle(pid)
const ch3b = await api(`/api/chapters/${chapters[2].id}`)
assert.equal(ch3b.status, 'written', '取消后应恢复为之前的状态')
assert.equal(ch3b.versions[0].status, 'cancelled')
assert.equal(ch3b.activeVersionId, ch3.activeVersionId, '取消的版本不应成为当前版本')
step('写作中途停止 → 状态回滚，旧版本保留')

// 12. 导出
const txt = await api(`/api/projects/${pid}/export?format=txt&scope=approved`)
assert.ok(txt.includes('第1章 雨落昆明'))
assert.ok(!txt.includes('第3章'))
step('导出 TXT')

const jobs = await api(`/api/projects/${pid}/jobs`)
const errors = jobs.filter(j => j.status === 'error')
assert.equal(errors.length, 0, JSON.stringify(errors, null, 2))
step(`共 ${jobs.length} 个任务，无错误；token 统计：${jobs.reduce((s, j) => s + j.inputTokens + j.outputTokens, 0)}`)

ac.abort()
await api(`/api/projects/${pid}`, 'DELETE')
console.log('\n全部通过 ✅')
process.exit(0)