import fs from 'node:fs'
import os from 'node:os'
import path from 'node:path'
import { describe, expect, it } from 'vitest'
import { ClaudeLoginManager } from '../src/services/claude-login'

// 模拟 `claude auth login` 的非交互行为：输出网址 → 读授权码 → 无效则提示并继续等待，有效则成功退出
const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'fake-claude-'))
const fake = path.join(dir, 'claude')
fs.writeFileSync(fake, `#!/usr/bin/env node
process.stdout.write('Opening browser to sign in…\\nIf the browser didn\\'t open, visit: https://claude.com/cai/oauth/authorize?code=true&state=abc\\nPaste code here if prompted > ')
let buf = ''
process.stdin.on('data', d => {
  buf += d
  const lines = buf.split('\\n'); buf = lines.pop()
  for (const l of lines) {
    if (l === 'good-code') { console.log('Login successful.'); process.exit(0) }
    else console.error('Invalid code. Please make sure the full code was copied.')
  }
})
`, { mode: 0o755 })

describe('ClaudeLoginManager', () => {
  const audits: string[] = []
  const mgr = new ClaudeLoginManager(() => fake, s => audits.push(s))

  it('启动后返回登录网址；无效授权码可以重试；有效授权码完成登录', async () => {
    const start = await mgr.start({})
    expect(start.url).toBe('https://claude.com/cai/oauth/authorize?code=true&state=abc')
    await expect(mgr.start({})).rejects.toThrow(/已有一个登录流程/)

    const bad = await mgr.submitCode(start.id, 'wrong')
    expect(bad).toEqual({ ok: false, retry: true, message: expect.stringContaining('Invalid code') })

    const good = await mgr.submitCode(start.id, 'good-code')
    expect(good.ok).toBe(true)
    expect(mgr.current()).toBeNull()
    // 审计中不包含授权码
    expect(audits.join('\n')).not.toMatch(/good-code|wrong/)
  })

  it('取消后流程结束，旧 ID 不能再提交', async () => {
    const start = await mgr.start({ sso: true, email: 'a@b.com' })
    mgr.cancel(start.id)
    expect(mgr.current()).toBeNull()
    await expect(mgr.submitCode(start.id, 'good-code')).rejects.toThrow(/不存在/)
  })

  it('拒绝格式不正确的输入', async () => {
    await expect(mgr.start({ email: 'not-an-email' })).rejects.toThrow(/邮箱/)
    const start = await mgr.start({})
    await expect(mgr.submitCode(start.id, 'has space')).rejects.toThrow(/格式/)
    mgr.cancel(start.id)
  })
})