// 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() {}
}
const common = require('../common')
const assert = require('assert')
const stream = require('../../lib/ours/index')
const str = 'asdfasdfasdfasdfasdf'
const r = new stream.Readable({
  highWaterMark: 5,
  encoding: 'utf8'
})
let reads = 0
function _read() {
  if (reads === 0) {
    setTimeout(() => {
      r.push(str)
    }, 1)
    reads++
  } else if (reads === 1) {
    const ret = r.push(str)
    assert.strictEqual(ret, false)
    reads++
  } else {
    r.push(null)
  }
}
r._read = common.mustCall(_read, 3)
r.on('end', common.mustCall())

// Push some data in to start.
// We've never gotten any read event at this point.
const ret = r.push(str)
// Should be false.  > hwm
assert(!ret)
let chunk = r.read()
assert.strictEqual(chunk, str)
chunk = r.read()
assert.strictEqual(chunk, null)
r.once('readable', () => {
  // This time, we'll get *all* the remaining data, because
  // it's been added synchronously, as the read WOULD take
  // us below the hwm, and so it triggered a _read() again,
  // which synchronously added more, which we then return.
  chunk = r.read()
  assert.strictEqual(chunk, str + str)
  chunk = r.read()
  assert.strictEqual(chunk, null)
})

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