'use strict'

const { tspl } = require('@matteo.collina/tspl')
const { test, after } = require('node:test')
const { createSecureServer } = require('node:http2')
const { once } = require('node:events')

const pem = require('@metcoder95/https-pem')

const { Agent } = require('..')

test('Agent should support H2 connection', async t => {
  t = tspl(t, { plan: 6 })

  const body = []
  const server = createSecureServer(await pem.generate({ opts: { keySize: 2048 } }))

  server.on('stream', (stream, headers) => {
    t.strictEqual(headers['x-my-header'], 'foo')
    t.strictEqual(headers[':method'], 'GET')
    stream.respond({
      'content-type': 'text/plain; charset=utf-8',
      'x-custom-h2': 'hello',
      ':status': 200
    })
    stream.end('hello h2!')
  })

  after(() => server.close())
  await once(server.listen(0), 'listening')

  const client = new Agent({
    connect: {
      rejectUnauthorized: false
    },
    allowH2: true
  })
  after(() => client.close())

  client.on('disconnect', () => {
    if (!client.closed && !client.destroyed) {
      t.fail('unexpected disconnect')
    }
  })

  const response = await client.request({
    origin: `https://localhost:${server.address().port}`,
    path: '/',
    method: 'GET',
    headers: {
      'x-my-header': 'foo'
    }
  })

  response.body.on('data', chunk => {
    body.push(chunk)
  })

  await once(response.body, 'end')

  t.strictEqual(response.statusCode, 200)
  t.strictEqual(response.headers['content-type'], 'text/plain; charset=utf-8')
  t.strictEqual(response.headers['x-custom-h2'], 'hello')
  t.strictEqual(Buffer.concat(body).toString('utf8'), 'hello h2!')

  await t.completed
})