import { describe, expect, it } from 'vitest'
import { spawnSync } from 'node:child_process'
import path from 'node:path'

function runHelper(script: string) {
  return spawnSync('bash', ['-c', 'set -euo pipefail; source "$DEPLOY_HELPER"; ' + script], {
    encoding: 'utf8',
    env: {
      ...process.env,
      DEPLOY_HELPER: path.resolve('scripts/deploy-runtime.sh'),
      DEPLOY_CONFIG: path.resolve('harheimertc.test.config.cjs')
    }
  })
}

describe('Deployment runtime', () => {
  it('reloads the selected app configuration with an absolute Node runtime', () => {
    const result = runHelper(`
      pm2() {
        if [ "$1" = describe ]; then return 0; fi
        printf 'runtime=%s\\n' "\${DEPLOY_NODE_BINARY:-}"
        printf '%s\\n' "$@"
      }
      deploy_restart_pm2 harheimertc.test "$DEPLOY_CONFIG"
    `)
    expect(result.status).toBe(0)
    expect(result.stdout).toContain('runtime=/')
    expect(result.stdout).toContain('delete\nharheimertc.test')
    expect(result.stdout).toContain('start\n' + path.resolve('harheimertc.test.config.cjs'))
    expect(result.stdout).toContain('--only\nharheimertc.test\n--update-env')
  })

  it('waits for HTTP readiness after initial connection failures', () => {
    const result = runHelper(`
      attempts=0
      curl() { attempts=$((attempts + 1)); [ "$attempts" -ge 3 ]; }
      sleep() { :; }
      pm2() { echo 'Unexpected diagnostics'; return 1; }
      deploy_wait_for_http harheimertc.test http://127.0.0.1:3102/
      [ "$attempts" -eq 3 ]
    `)
    expect(result.status).toBe(0)
    expect(result.stdout).toContain('HTTP-Healthcheck erfolgreich')
    expect(result.stdout).not.toContain('Unexpected diagnostics')
  })

  it('fails with PM2 diagnostics when the server never becomes ready', () => {
    const result = runHelper(`
      curl() { return 1; }
      sleep() { :; }
      pm2() { printf '%s\\n' "$*"; }
      deploy_wait_for_http harheimertc.test http://127.0.0.1:3102/
    `)
    expect(result.status).toBe(1)
    expect(result.stdout).toContain('describe harheimertc.test')
    expect(result.stdout).toContain('logs harheimertc.test --nostream --lines 30')
  })
})