// 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
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// USE OR OTHER DEALINGS IN THE SOFTWARE.


// Can't test this when 'make test' doesn't assign a tty to the stdout.
// Yet another use-case for require('tty').spawn ?
var common = require('../common');
var assert = require('assert');
var readline = require('readline');

var key = {
  xterm: {
    home: [27, 91, 72],
    end: [27, 91, 70],
    metab: [27, 98],
    metaf: [27, 102],
    metad: [27, 100]
  },
  gnome: {
    home: [27, 79, 72],
    end: [27, 79, 70]
  },
  rxvt: {
    home: [27, 91, 55],
    end: [27, 91, 56]
  },
  putty: {
    home: [27, 91, 49, 126],
    end: [27, 91, 52, 126]
  }
};

var readlineFakeStream = function() {
  var written_bytes = [];
  var rl = readline.createInterface(
      { fd: 1,
        write: function(b) {
          written_bytes.push(b);
        }
      },
      function(text) {
        return [[], ''];
      });
  rl.written_bytes = written_bytes;
  return rl;
};

var rl = readlineFakeStream();
var written_bytes_length, refreshed;

rl.write('foo');
assert.equal(3, rl.cursor);
rl.write(key.xterm.home);
assert.equal(0, rl.cursor);
rl.write(key.xterm.end);
assert.equal(3, rl.cursor);
rl.write(key.rxvt.home);
assert.equal(0, rl.cursor);
rl.write(key.rxvt.end);
assert.equal(3, rl.cursor);
rl.write(key.gnome.home);
assert.equal(0, rl.cursor);
rl.write(key.gnome.end);
assert.equal(3, rl.cursor);
rl.write(key.putty.home);
assert.equal(0, rl.cursor);
rl.write(key.putty.end);
assert.equal(3, rl.cursor);

rl = readlineFakeStream();
rl.write('foo bar.hop/zoo');
rl.write(key.xterm.home);
written_bytes_length = rl.written_bytes.length;
rl.write(key.xterm.metaf);
assert.equal(3, rl.cursor);
refreshed = written_bytes_length !== rl.written_bytes.length;
assert.equal(true, refreshed);
rl.write(key.xterm.metaf);
assert.equal(7, rl.cursor);
rl.write(key.xterm.metaf);
assert.equal(11, rl.cursor);
written_bytes_length = rl.written_bytes.length;
rl.write(key.xterm.metaf);
assert.equal(15, rl.cursor);
refreshed = written_bytes_length !== rl.written_bytes.length;
assert.equal(true, refreshed);
written_bytes_length = rl.written_bytes.length;
rl.write(key.xterm.metab);
assert.equal(12, rl.cursor);
refreshed = written_bytes_length !== rl.written_bytes.length;
assert.equal(true, refreshed);
rl.write(key.xterm.metab);
assert.equal(8, rl.cursor);
rl.write(key.xterm.metab);
assert.equal(4, rl.cursor);
written_bytes_length = rl.written_bytes.length;
rl.write(key.xterm.metab);
assert.equal(0, rl.cursor);
refreshed = written_bytes_length !== rl.written_bytes.length;
assert.equal(true, refreshed);

rl = readlineFakeStream();
rl.write('foo bar.hop/zoo');
rl.write(key.xterm.home);
rl.write(key.xterm.metad);
assert.equal(0, rl.cursor);
assert.equal(' bar.hop/zoo', rl.line);
rl.write(key.xterm.metad);
assert.equal(0, rl.cursor);
assert.equal('.hop/zoo', rl.line);
rl.write(key.xterm.metad);
assert.equal(0, rl.cursor);
assert.equal('/zoo', rl.line);
rl.write(key.xterm.metad);
assert.equal(0, rl.cursor);
assert.equal('', rl.line);