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TextConsole.cs
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TextConsole.cs
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// <copyright file="TextConsole.cs" company="Brian Rogers">
// Copyright (c) Brian Rogers. All rights reserved.
// </copyright>
namespace Adventure
{
using System;
using System.IO;
using Adventure.Messages;
public sealed class TextConsole : IDisposable
{
private readonly MessageBus bus;
private readonly TextReader reader;
private readonly TextWriter writer;
private readonly IDisposable inputSub;
private readonly IDisposable outputSub;
public TextConsole(MessageBus bus, TextReader reader, TextWriter writer)
{
this.bus = bus;
this.reader = reader;
this.writer = writer;
this.inputSub = this.bus.Subscribe<InputRequestedMessage>(m => this.ReadLine(m.Prompt));
this.outputSub = this.bus.Subscribe<OutputMessage>(m => this.writer.WriteLine(m.Text));
}
public void Dispose()
{
this.inputSub.Dispose();
this.outputSub.Dispose();
}
private void ReadLine(string prompt)
{
if (prompt != null)
{
this.writer.Write(prompt + " ");
}
string line = this.reader.ReadLine();
if (line == null)
{
this.bus.Send(new InputEndedMessage());
}
else
{
this.bus.Send(new InputReceivedMessage(line));
}
}
}
}