import { exec, type ChildProcess } from 'node:child_process'
import { expect, test, afterAll } from 'vitest'
import path from 'node:path'

let buildProcess: ChildProcess | null = null

afterAll(() => {
  if (buildProcess?.pid) {
    try {
      process.kill(buildProcess.pid, 0) // Check if process exists
      process.kill(buildProcess.pid) // Kill the process if it exists
    } catch (error) {
      // Process doesn't exist or we don't have permission to kill it
      console.info('Process already terminated or cannot be killed.')
    }
  }
})

test('Next.js build completes', async () => {
  try {
    buildProcess = exec('yarn build', {
      cwd: path.resolve(__dirname, '..'),
    })

    const buildOutput = new Promise<string>((resolve, reject) => {
      let output = ''
      buildProcess?.stdout?.on('data', (data) => {
        output += data.toString()
      })
      buildProcess?.stderr?.on('data', (data) => {
        output += data.toString()
      })
      buildProcess?.on('close', (code) => {
        if (code === 0) {
          resolve(output)
        } else {
          reject(new Error(`Build process exited with code ${code}`))
        }
      })
    })

    const result = await buildOutput

    // Check for yarn build output
    expect(result).toContain('built @my/config')
    expect(result).toContain('built @my/ui')

    // Check for Next.js version and build process
    expect(result).toContain('Next.js 14')
    expect(result).toContain('Creating an optimized production build')

    // Check for route information
    expect(result).toContain('Route (app)')
    expect(result).toContain('Route (pages)')
    expect(result).toContain('First Load JS shared by all')

    // Check for specific route patterns
    expect(result).toContain('○ /')
    expect(result).toContain('○ /_not-found')
    expect(result).toContain('ƒ /user/[id]')
    expect(result).toContain('/_app')
    expect(result).toContain('/pages-example')
    expect(result).toContain('/pages-example-user/[id]')

    // Check for chunk information
    expect(result).toContain('chunks/framework-')
    expect(result).toContain('chunks/main-')
    expect(result).toContain('chunks/pages/_app-')

    // Check for static and dynamic route indicators
    expect(result).toContain('○  (Static)   prerendered as static content')
    expect(result).toContain('ƒ  (Dynamic)  server-rendered on demand')
  } finally {
    // The process kill check has been moved to the afterAll block
  }
}, 60_000)