let dbus = require('dbus-final');
let bus = dbus.sessionBus();
let Variant = dbus.Variant;

// getting an object introspects it on the bus and creates the interfaces
let obj = await bus.getProxyObject('org.mpris.MediaPlayer2.vlc', '/org/mpris/MediaPlayer2');

// the interfaces are the primary way of interacting with objects on the bus
let player = obj.getInterface('org.mpris.MediaPlayer2.Player');
let properties = obj.getInterface('org.freedesktop.DBus.Properties');

// call methods on the interface
await player.Play()

// get properties with the properties interface (this returns a variant)
let volumeVariant = await properties.Get('org.mpris.MediaPlayer2.Player', 'Volume');
console.log('current volume: ' + volumeVariant.value);

// set properties with the properties interface using a variant
await properties.Set('org.mpris.MediaPlayer2.Player', 'Volume', new Variant('d', volumeVariant.value + 0.05));

// listen to signals
properties.on('PropertiesChanged', (iface, changed, invalidated) => {
  for (let prop of Object.keys(changed)) {
    console.log(`property changed: ${prop}`);
  }
});

let dbus = require('dbus-final');
let Variant = dbus.Variant;

let {
  Interface, property, method, signal, DBusError,
  ACCESS_READ, ACCESS_WRITE, ACCESS_READWRITE
} = dbus.interface;

let bus = dbus.sessionBus();

class ExampleInterface extends Interface {
  @property({signature: 's', access: ACCESS_READWRITE})
  SimpleProperty = 'foo';

  _MapProperty = {
    'foo': new Variant('s', 'bar'),
    'bat': new Variant('i', 53)
  };

  @property({signature: 'a{sv}'})
  get MapProperty() {
    return this._MapProperty;
  }

  set MapProperty(value) {
    this._MapProperty = value;

    Interface.emitPropertiesChanged(this, {
      MapProperty: value
    });
  }

  @method({inSignature: 's', outSignature: 's'})
  Echo(what) {
    return what;
  }

  @method({inSignature: 'ss', outSignature: 'vv'})
  ReturnsMultiple(what, what2) {
    return [
      new Variant('s', what),
      new Variant('s', what2)
    ];
  }

  @method({inSignature: '', outSignature: ''})
  ThrowsError() {
    // the error is returned to the client
    throw new DBusError('org.test.iface.Error', 'something went wrong');
  }

  @method({inSignature: '', outSignature: '', noReply: true})
  NoReply() {
    // by setting noReply to true, dbus-final will NOT send a return reply through dbus
    // after the method is called.
  }

  @signal({signature: 's'})
  HelloWorld(value) {
    return value;
  }

  @signal({signature: 'ss'})
  SignalMultiple(x) {
    return [
      'hello',
      'world'
    ];
  }
}

let example = new ExampleInterface('org.test.iface');

setTimeout(() => {
  // emit the HelloWorld signal by calling the method with the parameters to
  // send to the listeners
  example.HelloWorld('hello');
}, 500);

async function main() {
  // make a request for the name on the bus
  await bus.requestName('org.test.name');
  // export the interface on the path
  bus.export('/org/test/path', example);
}

main().catch((err) => {
  console.log('Error: ' + err);
});

let dbus = require('dbus-final');
let Variant = dbus.Variant;

let {
  Interface, property, method, signal, DBusError,
  ACCESS_READ, ACCESS_WRITE, ACCESS_READWRITE
} = dbus.interface;

let bus = dbus.sessionBus();

class ExampleInterface extends Interface {
  SimpleProperty = 'foo';

  _MapProperty = {
    'foo': new Variant('s', 'bar'),
    'bat': new Variant('i', 53)
  };

  get MapProperty() {
    return this._MapProperty;
  }

  set MapProperty(value) {
    this._MapProperty = value;

    Interface.emitPropertiesChanged(this, {
      MapProperty: value
    });
  }

  Echo(what) {
    return what;
  }

  ReturnsMultiple(what, what2) {
    return [
      new Variant('s', what),
      new Variant('s', what2)
    ];
  }

  ThrowsError() {
    // the error is returned to the client
    throw new DBusError('org.test.iface.Error', 'something went wrong');
  }

  NoReply() {
    // by setting noReply to true, dbus-final will NOT send a return reply through dbus
    // after the method is called.
  }

  HelloWorld(value) {
    return value;
  }

  SignalMultiple(x) {
    return [
      'hello',
      'world'
    ];
  }
}
ExampleInterface.configureMembers({
    methods: {
        Echo: {inSignature: 's', outSignature: 's'},
        ReturnsMultiple: {inSignature: 'ss', outSignature: 'vv'},
        ThrowsError: {inSignature: '', outSignature: ''},
        NoReply: {inSignature: '', outSignature: '', noReply: true}
    },
    properties: {
        SimpleProperty: {signature: 's', access: ACCESS_READWRITE},
        MapProperty: {signature: 'a{sv}'}
    },
    signals: {
        HelloWorld: {signature: 's'},
        SignalMultiple: {signature: 'ss'}
    }
})

let example = new ExampleInterface('org.test.iface');

setTimeout(() => {
  // emit the HelloWorld signal by calling the method with the parameters to
  // send to the listeners
  example.HelloWorld('hello');
}, 500);

async function main() {
  // make a request for the name on the bus
  await bus.requestName('org.test.name');
  // export the interface on the path
  bus.export('/org/test/path', example);
}

main().catch((err) => {
  console.log('Error: ' + err);
});

let dbus = require('dbus-final');
let Message = dbus.Message;

let bus = dbus.sessionBus();

// send a method call to list the names on the bus
let methodCall = new Message({
  destination: 'org.freedesktop.DBus',
  path: '/org/freedesktop/DBus',
  interface: 'org.freedesktop.DBus',
  member: 'ListNames'
});

let reply = await bus.call(methodCall);
console.log('names on the bus: ', reply.body[0]);

// add a custom handler for a particular method
bus.addMethodHandler((msg) => {
  if (msg.path === '/org/test/path' &&
      msg.interface === 'org.test.interface'
      && msg.member === 'SomeMethod') {
    // handle the method by sending a reply
    let someMethodReply = Message.newMethodReturn(msg, 's', ['hello']);
    bus.send(someMethodReply);
    return true;
  }
});

// listen to any messages that are sent to the bus
bus.on('message', (msg) => {
  console.log('got a message: ', msg);
});