// Git 同步：设置解析、状态文案、定时租约互斥、侧栏同步条渲染。
import { describe, it, expect, vi } from 'vitest'
import { createRoot } from 'react-dom/client'
import { act } from 'react-dom/test-utils'
import {
  parseGitSyncSettings, gitStatusLabel, gitSyncCommitMessage,
  acquireGitSyncLease, releaseGitSyncLease,
} from '../src/services/gitSync'
import type { GitStatusInfo } from '../src/services/platform'

vi.mock('../src/services/platform', async (importOriginal) => {
  const orig = await importOriginal<typeof import('../src/services/platform')>()
  return { ...orig, listDir: async () => [] }
})

import Sidebar from '../src/components/Sidebar'

const base: GitStatusInfo = {
  isRepo: true, branch: 'main', remoteUrl: 'https://example.com/n.git',
  dirtyCount: 0, ahead: 0, behind: 0, hasUpstream: true,
}

describe('parseGitSyncSettings', () => {
  it('空/坏数据回默认（手动）', () => {
    expect(parseGitSyncSettings(null).intervalMin).toBe(0)
    expect(parseGitSyncSettings('{bad').intervalMin).toBe(0)
    expect(parseGitSyncSettings('{"intervalMin":-3}').intervalMin).toBe(0)
  })
  it('正常解析间隔', () => {
    expect(parseGitSyncSettings('{"intervalMin":15}').intervalMin).toBe(15)
  })
})

describe('gitStatusLabel', () => {
  it('未启用 / 同步中 / 已同步', () => {
    expect(gitStatusLabel({ ...base, isRepo: false }, false)).toBe('未启用 Git 同步')
    expect(gitStatusLabel(base, true)).toBe('正在同步…')
    expect(gitStatusLabel(base, false)).toBe('main · 已同步')
  })
  it('待提交/待推送/待拉取计数', () => {
    expect(gitStatusLabel({ ...base, dirtyCount: 2, ahead: 1, behind: 3 }, false))
      .toBe('main · 待提交 2 处 · 待推送 1 · 待拉取 3')
  })
  it('无远程时提示未设置远程', () => {
    expect(gitStatusLabel({ ...base, remoteUrl: null, hasUpstream: false }, false))
      .toBe('main · 未设置远程 · 已同步')
  })
})

describe('gitSyncCommitMessage', () => {
  it('带本地时间戳与手动/自动区分', () => {
    const d = new Date(2026, 10, 14, 9, 5)
    expect(gitSyncCommitMessage(true, d)).toBe('自动同步 2026-11-14 09:05（new-markdown）')
    expect(gitSyncCommitMessage(false, d)).toContain('手动同步 2026-11-14 09:05')
  })
})

describe('定时同步租约', () => {
  it('别的窗口新鲜占用时取不到，过期/释放后可取', () => {
    localStorage.clear()
    const t0 = 1_000_000
    expect(acquireGitSyncLease('C:/ws', 'win-a', t0)).toBe(true)
    expect(acquireGitSyncLease('C:/ws', 'win-b', t0 + 5_000)).toBe(false)
    expect(acquireGitSyncLease('C:/ws', 'win-a', t0 + 6_000)).toBe(true) // 自己续租
    expect(acquireGitSyncLease('C:/ws', 'win-b', t0 + 40_000)).toBe(true) // 已过期
    releaseGitSyncLease('C:/ws', 'win-a') // 不是持有者，无效
    expect(acquireGitSyncLease('C:/ws', 'win-c', t0 + 41_000)).toBe(false)
    releaseGitSyncLease('C:/ws', 'win-b')
    expect(acquireGitSyncLease('C:/ws', 'win-c', t0 + 42_000)).toBe(true)
  })
})

describe('侧栏 Git 同步条', () => {
  async function renderBar(gitSync: Record<string, unknown>) {
    const container = document.createElement('div')
    document.body.appendChild(container)
    const root = createRoot(container)
    await act(async () => {
      root.render(
        <Sidebar
          mode="files"
          onModeChange={() => undefined}
          workspaceRoot="C:/ws"
          activePath={null}
          onOpenFile={() => undefined}
          onOpenFolder={() => undefined}
          outline={[]}
          onJumpHeading={() => undefined}
          tauriMode
          gitSync={gitSync as never}
        />,
      )
    })
    await act(async () => { await new Promise((r) => setTimeout(r, 30)) })
    return container
  }

  it('未启用时显示状态与设置按钮，无立即同步', async () => {
    const c = await renderBar({
      isRepo: false, label: '未启用 Git 同步', syncing: false,
      lastMessage: null, lastIsError: false,
      onSyncNow: () => undefined, onOpenSettings: () => undefined,
    })
    expect(c.textContent).toContain('Git 同步')
    expect(c.textContent).toContain('未启用 Git 同步')
    expect(c.querySelector('[aria-label="Git 同步设置"]')).not.toBeNull()
    expect(c.querySelector('[aria-label="立即同步"]')).toBeNull()
  })

  it('仓库状态下显示立即同步且可点，结果行可见', async () => {
    const onSyncNow = vi.fn()
    const c = await renderBar({
      isRepo: true, label: 'main · 待提交 2 处', syncing: false,
      lastMessage: '已提交本地更改', lastIsError: false,
      onSyncNow, onOpenSettings: () => undefined,
    })
    expect(c.textContent).toContain('待提交 2 处')
    expect(c.textContent).toContain('已提交本地更改')
    const btn = c.querySelector('[aria-label="立即同步"]') as HTMLButtonElement
    await act(async () => { btn.click() })
    expect(onSyncNow).toHaveBeenCalledTimes(1)
  })
})