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// Copyright 2015 The Weave Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "examples/daemon/common/daemon.h"
#include <weave/device.h>
#include <base/bind.h>
#include <base/memory/weak_ptr.h>
namespace {
const char kTraits[] = R"({
"onOff": {
"commands": {
"setConfig": {
"minimalRole": "user",
"parameters": {
"state": {
"type": "string",
"enum": [ "on", "off" ]
}
}
}
},
"state": {
"state": {
"type": "string",
"enum": [ "on", "off" ],
"isRequired": true
}
}
},
"volume": {
"commands": {
"setConfig": {
"minimalRole": "user",
"parameters": {
"volume": {
"type": "integer",
"minimum": 0,
"maximum": 100
},
"isMuted": { "type": "boolean" }
}
}
},
"state": {
"isMuted": {
"type": "boolean",
"isRequired": true
},
"volume": {
"type": "integer",
"minimum": 0,
"maximum": 100,
"isRequired": true
}
}
}
})";
const char kComponent[] = "speaker";
} // anonymous namespace
// SpeakerHandler is a command handler example that shows
// how to handle commands for a Weave speaker.
class SpeakerHandler {
public:
SpeakerHandler() = default;
void Register(weave::Device* device) {
device_ = device;
device->AddTraitDefinitionsFromJson(kTraits);
CHECK(device->AddComponent(kComponent, {"onOff", "volume"}, nullptr));
UpdateSpeakerState();
device->AddCommandHandler(kComponent, "onOff.setConfig",
base::Bind(&SpeakerHandler::OnOnOffSetConfig,
weak_ptr_factory_.GetWeakPtr()));
device->AddCommandHandler(kComponent, "volume.setConfig",
base::Bind(&SpeakerHandler::OnVolumeSetConfig,
weak_ptr_factory_.GetWeakPtr()));
}
private:
void OnVolumeSetConfig(const std::weak_ptr<weave::Command>& command) {
auto cmd = command.lock();
if (!cmd)
return;
LOG(INFO) << "received command: " << cmd->GetName();
const auto& params = cmd->GetParameters();
// Handle volume parameter
int32_t volume_value = 0;
if (params.GetInteger("volume", &volume_value)) {
// Display this command in terminal.
LOG(INFO) << cmd->GetName() << " volume: " << volume_value;
if (volume_value_ != volume_value) {
volume_value_ = volume_value;
UpdateSpeakerState();
}
cmd->Complete({}, nullptr);
return;
}
// Handle isMuted parameter
bool isMuted_status = false;
if (params.GetBoolean("isMuted", &isMuted_status)) {
// Display this command in terminal.
LOG(INFO) << cmd->GetName() << " is "
<< (isMuted_status ? "muted" : "not muted");
if (isMuted_status_ != isMuted_status) {
isMuted_status_ = isMuted_status;
LOG(INFO) << "Speaker is now: "
<< (isMuted_status ? "muted" : "not muted");
UpdateSpeakerState();
}
}
cmd->Complete({}, nullptr);
}
void OnOnOffSetConfig(const std::weak_ptr<weave::Command>& command) {
auto cmd = command.lock();
if (!cmd)
return;
LOG(INFO) << "received command: " << cmd->GetName();
const auto& params = cmd->GetParameters();
std::string requested_state;
if (params.GetString("state", &requested_state)) {
LOG(INFO) << cmd->GetName() << " state: " << requested_state;
bool new_speaker_status = requested_state == "on";
if (new_speaker_status != speaker_status_) {
speaker_status_ = new_speaker_status;
LOG(INFO) << "Speaker is now: " << (speaker_status_ ? "ON" : "OFF");
UpdateSpeakerState();
}
}
cmd->Complete({}, nullptr);
}
void UpdateSpeakerState() {
base::DictionaryValue state;
state.SetString("onOff.state", speaker_status_ ? "on" : "off");
state.SetBoolean("volume.isMuted", isMuted_status_);
state.SetInteger("volume.volume", volume_value_);
device_->SetStateProperties(kComponent, state, nullptr);
}
weave::Device* device_{nullptr};
// Simulate the state of the speaker.
bool speaker_status_;
bool isMuted_status_;
int32_t volume_value_;
base::WeakPtrFactory<SpeakerHandler> weak_ptr_factory_{this};
};
int main(int argc, char** argv) {
Daemon::Options opts;
if (!opts.Parse(argc, argv)) {
Daemon::Options::ShowUsage(argv[0]);
return 1;
}
Daemon daemon{opts};
SpeakerHandler speaker;
speaker.Register(daemon.GetDevice());
daemon.Run();
return 0;
}
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