// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict'

const tap = require('tap')
const silentConsole = {
  log() {},
  error() {}
}
// This test asserts that Stream.prototype.pipe does not leave listeners
// hanging on the source or dest.
require('../common')
const stream = require('../../lib/ours/index')
const assert = require('assert')
function Writable() {
  this.writable = true
  this.endCalls = 0
  stream.Stream.call(this)
}
Object.setPrototypeOf(Writable.prototype, stream.Stream.prototype)
Object.setPrototypeOf(Writable, stream.Stream)
Writable.prototype.end = function () {
  this.endCalls++
}
Writable.prototype.destroy = function () {
  this.endCalls++
}
function Readable() {
  this.readable = true
  stream.Stream.call(this)
}
Object.setPrototypeOf(Readable.prototype, stream.Stream.prototype)
Object.setPrototypeOf(Readable, stream.Stream)
function Duplex() {
  this.readable = true
  Writable.call(this)
}
Object.setPrototypeOf(Duplex.prototype, Writable.prototype)
Object.setPrototypeOf(Duplex, Writable)
let i = 0
const limit = 100
let w = new Writable()
let r
for (i = 0; i < limit; i++) {
  r = new Readable()
  r.pipe(w)
  r.emit('end')
}
assert.strictEqual(r.listeners('end').length, 0)
assert.strictEqual(w.endCalls, limit)
w.endCalls = 0
for (i = 0; i < limit; i++) {
  r = new Readable()
  r.pipe(w)
  r.emit('close')
}
assert.strictEqual(r.listeners('close').length, 0)
assert.strictEqual(w.endCalls, limit)
w.endCalls = 0
r = new Readable()
for (i = 0; i < limit; i++) {
  w = new Writable()
  r.pipe(w)
  w.emit('close')
}
assert.strictEqual(w.listeners('close').length, 0)
r = new Readable()
w = new Writable()
const d = new Duplex()
r.pipe(d) // pipeline A
d.pipe(w) // pipeline B
assert.strictEqual(r.listeners('end').length, 2) // A.onend, A.cleanup
assert.strictEqual(r.listeners('close').length, 2) // A.onclose, A.cleanup
assert.strictEqual(d.listeners('end').length, 2) // B.onend, B.cleanup
// A.cleanup, B.onclose, B.cleanup
assert.strictEqual(d.listeners('close').length, 3)
assert.strictEqual(w.listeners('end').length, 0)
assert.strictEqual(w.listeners('close').length, 1) // B.cleanup

r.emit('end')
assert.strictEqual(d.endCalls, 1)
assert.strictEqual(w.endCalls, 0)
assert.strictEqual(r.listeners('end').length, 0)
assert.strictEqual(r.listeners('close').length, 0)
assert.strictEqual(d.listeners('end').length, 2) // B.onend, B.cleanup
assert.strictEqual(d.listeners('close').length, 2) // B.onclose, B.cleanup
assert.strictEqual(w.listeners('end').length, 0)
assert.strictEqual(w.listeners('close').length, 1) // B.cleanup

d.emit('end')
assert.strictEqual(d.endCalls, 1)
assert.strictEqual(w.endCalls, 1)
assert.strictEqual(r.listeners('end').length, 0)
assert.strictEqual(r.listeners('close').length, 0)
assert.strictEqual(d.listeners('end').length, 0)
assert.strictEqual(d.listeners('close').length, 0)
assert.strictEqual(w.listeners('end').length, 0)
assert.strictEqual(w.listeners('close').length, 0)

/* replacement start */
process.on('beforeExit', (code) => {
  if (code === 0) {
    tap.pass('test succeeded')
  } else {
    tap.fail(`test failed - exited code ${code}`)
  }
})
/* replacement end */
