import assert from 'node:assert/strict'
import { test } from 'node:test'
import { Controller, parseCommand } from './controller.js'
import { parseRange } from './range.js'

const command = { id: 'one', action: 'play', media: 'audio', position: 0 }
test('валидирует команды на границе IPC / LAN', () => {
  assert.deepEqual(parseCommand(command), command)
  for (const value of [
    null,
    {},
    { ...command, id: '../file' },
    { ...command, action: ['play'] },
    { ...command, media: ['audio'] },
    { ...command, position: NaN },
    { ...command, position: -1 },
    { ...command, action: 'delete' },
    { ...command, media: '/etc/passwd' },
  ]) {
    assert.throws(() => parseCommand(value))
  }
})
test('повтор не применяется; устаревшее подтверждение не меняет новую команду', () => {
  let broadcasts = 0
  const c = new Controller(() => broadcasts++)
  c.command(command)
  c.command(command)
  assert.equal(broadcasts, 1)
  c.command({ ...command, id: 'two', action: 'pause' })
  c.report({ id: 'one', status: 'playing' })
  assert.equal(c.state.status, 'pending')
  c.report({ id: 'two', status: 'paused' })
  assert.equal(c.state.status, 'paused')
  assert.equal(c.state.revision, 3)
})
test('playing подтверждается один раз, ошибки сохраняются', () => {
  const c = new Controller(() => {})
  c.command(command)
  c.report({ id: 'one', status: 'playing' })
  c.report({ id: 'one', status: 'playing' })
  assert.equal(c.state.samples.length, 1)
  c.report({ id: 'one', status: 'error', error: 'Нет файла' })
  assert.equal(c.state.error, 'Нет файла')
  assert.throws(() => c.report({ id: 'one', status: 'anything' }))
})
test('Range: полный файл, границы, суффикс и отказ для недопустимых диапазонов', () => {
  assert.equal(parseRange(null, 0), null)
  assert.deepEqual(parseRange(null, 100), { start: 0, end: 99 })
  assert.deepEqual(parseRange('bytes=20-29', 100), { start: 20, end: 29 })
  assert.deepEqual(parseRange('bytes=90-', 100), { start: 90, end: 99 })
  assert.deepEqual(parseRange('bytes=-10', 100), { start: 90, end: 99 })
  assert.deepEqual(parseRange('bytes=90-999', 100), { start: 90, end: 99 })
  for (const value of ['bytes=100-', 'bytes=20-10', 'bytes=-0', 'bytes=0-1,3-5', 'bytes=-', 'abc'])
    assert.equal(parseRange(value, 100), null)
})