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firestore.ts
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/* Copyright 2018, Google, Inc.
* Licensed under the Apache License, Version 2.0 (the 'License');
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an 'AS IS' BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Communicates with Firestore for a user's devices to control them or read
* the current state.
*/
import {
SmartHomeV1SyncDevices,
SmartHomeV1ExecuteRequestExecution,
} from 'actions-on-google';
import {ApiClientObjectMap} from 'actions-on-google/dist/common';
import * as admin from 'firebase-admin';
import * as functions from 'firebase-functions';
admin.initializeApp();
const db = admin.firestore();
const settings = {timestampsInSnapshots: true};
db.settings(settings);
export async function userExists(userId: string): Promise<boolean> {
const userDoc = await db.collection('users').doc(userId).get();
return userDoc.exists;
}
export async function getUserId(accessToken: string): Promise<string> {
const querySnapshot = await db
.collection('users')
.where('fakeAccessToken', '==', accessToken)
.get();
if (querySnapshot.empty) {
throw new Error('No user found for this access token');
}
const doc = querySnapshot.docs[0];
return doc.id; // This is the user id in Firestore
}
export async function homegraphEnabled(userId: string): Promise<boolean> {
const userDoc = await db.collection('users').doc(userId).get();
return userDoc.data()!.homegraph;
}
export async function setHomegraphEnable(userId: string, enable: boolean) {
await db.collection('users').doc(userId).update({
homegraph: enable,
});
}
export async function updateDevice(
userId: string,
deviceId: string,
name: string,
nickname: string,
states: ApiClientObjectMap<string | boolean | number>,
localDeviceId: string,
errorCode: string,
tfa: string
) {
// Payload can contain any state data
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const updatePayload: {[key: string]: any} = {};
if (name) {
updatePayload['name'] = name;
}
if (nickname) {
updatePayload['nicknames'] = [nickname];
}
if (states) {
updatePayload['states'] = states;
}
if (localDeviceId === null) {
// null means local execution has been disabled.
updatePayload['otherDeviceIds'] = admin.firestore.FieldValue.delete();
} else if (localDeviceId !== undefined) {
// undefined means localDeviceId was not updated.
updatePayload['otherDeviceIds'] = [{deviceId: localDeviceId}];
}
if (errorCode) {
updatePayload['errorCode'] = errorCode;
} else if (!errorCode) {
updatePayload['errorCode'] = '';
}
if (tfa) {
updatePayload['tfa'] = tfa;
} else if (tfa !== undefined) {
updatePayload['tfa'] = '';
}
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update(updatePayload);
}
export async function addDevice(
userId: string,
data: ApiClientObjectMap<string | boolean | number>
) {
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(data.id as string)
.set(data);
}
export async function deleteDevice(userId: string, deviceId: string) {
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.delete();
}
export async function getDevices(
userId: string
): Promise<SmartHomeV1SyncDevices[]> {
const devices: SmartHomeV1SyncDevices[] = [];
const querySnapshot = await db
.collection('users')
.doc(userId)
.collection('devices')
.get();
querySnapshot.forEach(doc => {
const data = doc.data();
const device: SmartHomeV1SyncDevices = {
id: data.id,
type: data.type,
traits: data.traits,
name: {
defaultNames: data.defaultNames,
name: data.name,
nicknames: data.nicknames,
},
deviceInfo: {
manufacturer: data.manufacturer,
model: data.model,
hwVersion: data.hwVersion,
swVersion: data.swVersion,
},
willReportState: data.willReportState,
attributes: data.attributes,
otherDeviceIds: data.otherDeviceIds,
customData: data.customData,
};
devices.push(device);
});
return devices;
}
export async function getState(
userId: string,
deviceId: string
): Promise<StatesMap> {
const doc = await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.get();
if (!doc.exists) {
throw new Error('deviceNotFound');
}
return doc.data()!.states;
}
// Payload can contain any state data
// eslint-disable-next-line @typescript-eslint/no-explicit-any
export type StatesMap = ApiClientObjectMap<any>;
export async function execute(
userId: string,
deviceId: string,
execution: SmartHomeV1ExecuteRequestExecution
): Promise<StatesMap> {
const doc = await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.get();
if (!doc.exists) {
throw new Error('deviceNotFound');
}
const states: StatesMap = {
online: true,
};
const data = doc.data();
if (!data!.states.online) {
throw new Error('deviceOffline');
}
if (data!.errorCode) {
throw new Error(data!.errorCode);
}
if (data!.tfa === 'ack' && !execution.challenge) {
throw new Error('ackNeeded');
} else if (data!.tfa && !execution.challenge) {
throw new Error('pinNeeded');
} else if (data!.tfa && execution.challenge) {
if (execution.challenge.pin && execution.challenge.pin !== data!.tfa) {
throw new Error('challengeFailedPinNeeded');
}
}
functions.logger.debug(
'command:',
execution.command,
'params:',
execution.params
);
switch (execution.command) {
// action.devices.traits.AppSelector
case 'action.devices.commands.appSelect': {
const {newApplication, newApplicationName} = execution.params!;
const currentApplication = newApplication || newApplicationName;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.currentApplication': currentApplication,
});
states['currentApplication'] = currentApplication;
break;
}
case 'action.devices.commands.appInstall': {
break;
}
case 'action.devices.commands.appSearch': {
break;
}
// action.devices.traits.ArmDisarm
case 'action.devices.commands.ArmDisarm': {
const {arm, cancel, armLevel} = execution.params!;
if (arm !== undefined) {
states.isArmed = arm;
} else if (cancel) {
// Cancel value is in relation to the arm value
states.isArmed = !data!.states.isArmed;
}
if (armLevel) {
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.isArmed': states.isArmed || data!.states.isArmed,
'states.currentArmLevel': armLevel,
});
states['currentArmLevel'] = armLevel;
} else {
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.isArmed': states.isArmed || data!.states.isArmed,
});
}
break;
}
// action.devices.traits.Brightness
case 'action.devices.commands.BrightnessAbsolute': {
const {brightness} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.brightness': brightness,
});
states['brightness'] = brightness;
break;
}
// action.devices.traits.CameraStream
case 'action.devices.commands.GetCameraStream': {
states['cameraStreamAccessUrl'] = 'https://fluffysheep.com/baaaaa.mp4';
break;
}
// action.devices.traits.ColorSetting
case 'action.devices.commands.ColorAbsolute': {
let color = {};
if (execution.params!.color.spectrumRGB) {
const {spectrumRGB} = execution.params!.color;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.color': {
spectrumRgb: spectrumRGB,
},
});
color = {
spectrumRgb: spectrumRGB,
};
} else if (execution.params!.color.spectrumHSV) {
const {spectrumHSV} = execution.params!.color;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.color': {
spectrumHsv: spectrumHSV,
},
});
color = {
spectrumHsv: spectrumHSV,
};
} else if (execution.params!.color.temperature) {
const {temperature} = execution.params!.color;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.color': {
temperatureK: temperature,
},
});
color = {
temperatureK: temperature,
};
} else {
throw new Error('notSupported');
}
states['color'] = color;
break;
}
// action.devices.traits.Cook
case 'action.devices.commands.Cook': {
if (execution.params!.start) {
const {cookingMode, foodPreset, quantity, unit} = execution.params!;
// Start cooking
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.currentCookingMode': cookingMode,
'states.currentFoodPreset': foodPreset || 'NONE',
'states.currentFoodQuantity': quantity || 0,
'states.currentFoodUnit': unit || 'NO_UNITS',
});
states['currentCookingMode'] = cookingMode;
states['currentFoodPreset'] = foodPreset;
states['currentFoodQuantity'] = quantity;
states['currentFoodUnit'] = unit;
} else {
// Done cooking, reset
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.currentCookingMode': 'NONE',
'states.currentFoodPreset': 'NONE',
'states.currentFoodQuantity': 0,
'states.currentFoodUnit': 'NO_UNITS',
});
states['currentCookingMode'] = 'NONE';
states['currentFoodPreset'] = 'NONE';
}
break;
}
// action.devices.traits.Dispense
case 'action.devices.commands.Dispense': {
let {amount, unit} = execution.params!;
const {item, presetName} = execution.params!;
if (presetName === 'cat food bowl') {
// Fill in params
amount = 4;
unit = 'CUPS';
}
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.dispenseItems': [
{
itemName: item,
amountLastDispensed: {
amount,
unit,
},
isCurrentlyDispensing: presetName !== undefined,
},
],
});
states['dispenseItems'] = [
{
itemName: item,
amountLastDispensed: {
amount,
unit,
},
isCurrentlyDispensing: presetName !== undefined,
},
];
break;
}
// action.devices.traits.Dock
case 'action.devices.commands.Dock': {
// This has no parameters
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.isDocked': true,
});
states['isDocked'] = true;
break;
}
// action.devices.traits.EnergyStorage
case 'action.devices.commands.Charge': {
const {charge} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.isCharging': charge,
});
states['isCharging'] = charge;
break;
}
// action.devices.traits.FanSpeed
case 'action.devices.commands.SetFanSpeed': {
const {fanSpeed, fanSpeedPercent} = execution.params!;
if (fanSpeed) {
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.currentFanSpeedSetting': fanSpeed,
});
states['currentFanSpeedSetting'] = fanSpeed;
} else if (fanSpeedPercent) {
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.currentFanSpeedPercent': fanSpeedPercent,
});
states['currentFanSpeedPercent'] = fanSpeedPercent;
}
break;
}
case 'action.devices.commands.Reverse': {
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.currentFanSpeedReverse': true,
});
break;
}
// action.devices.traits.Fill
case 'action.devices.commands.Fill': {
const {fill, fillLevel} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.isFilled': fill,
'states.currentFillLevel': fill ? fillLevel || 'half' : 'none',
});
states['isFilled'] = fill;
states['currentFillLevel'] = fill ? fillLevel || 'half' : 'none';
break;
}
// action.devices.traits.HumiditySetting
case 'action.devices.commands.SetHumidity': {
const {humidity} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.humiditySetpointPercent': humidity,
});
states['humiditySetpointPercent'] = humidity;
break;
}
// action.devices.traits.InputSelector
case 'action.devices.commands.SetInput': {
const {newInput} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.currentInput': newInput,
});
states['currentInput'] = newInput;
break;
}
case 'action.devices.commands.PreviousInput': {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const {availableInputs}: {availableInputs: any[]} = data!.attributes;
const {currentInput} = data!.states;
const currentInputIndex = availableInputs.findIndex(
input => input.key === currentInput
);
const previousInputIndex = Math.min(currentInputIndex - 1, 0);
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.currentInput': availableInputs[previousInputIndex].key,
});
states['currentInput'] = availableInputs[previousInputIndex].key;
break;
}
case 'action.devices.commands.NextInput': {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const {availableInputs}: {availableInputs: any[]} = data!.attributes;
const {currentInput} = data!.states;
const currentInputIndex = availableInputs.findIndex(
input => input.key === currentInput
);
const nextInputIndex = Math.max(
currentInputIndex + 1,
availableInputs.length - 1
);
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.currentInput': availableInputs[nextInputIndex].key,
});
states['currentInput'] = availableInputs[nextInputIndex].key;
break;
}
// action.devices.traits.Locator
case 'action.devices.commands.Locate': {
const {silent} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.silent': silent,
'states.generatedAlert': true,
});
states['generatedAlert'] = true;
break;
}
// action.devices.traits.LockUnlock
case 'action.devices.commands.LockUnlock': {
const {lock} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.isLocked': lock,
});
states['isLocked'] = lock;
break;
}
// action.devices.traits.Modes
case 'action.devices.commands.SetModes': {
const {updateModeSettings} = execution.params!;
const currentModeSettings: {
[key: string]: string;
} = data!.states.currentModeSettings;
for (const mode of Object.keys(updateModeSettings)) {
const setting = updateModeSettings[mode];
currentModeSettings[mode] = setting;
}
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.currentModeSettings': currentModeSettings,
});
states['currentModeSettings'] = currentModeSettings;
break;
}
// action.devices.traits.NetworkControl
case 'action.devices.commands.EnableDisableGuestNetwork': {
const {enable} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.guestNetworkEnabled': enable,
});
states['guestNetworkEnabled'] = enable;
break;
}
case 'action.devices.commands.EnableDisableNetworkProfile': {
const {profile} = execution.params!;
if (!data!.attributes.networkProfiles.includes(profile)) {
throw new Error('networkProfileNotRecognized');
}
// No state change occurs
break;
}
case 'action.devices.commands.TestNetworkSpeed': {
const {testDownloadSpeed, testUploadSpeed} = execution.params!;
const {
lastNetworkDownloadSpeedTest,
lastNetworkUploadSpeedTest,
} = data!.states;
if (testDownloadSpeed) {
// Randomly generate new download speed
lastNetworkDownloadSpeedTest.downloadSpeedMbps = (
Math.random() * 100
).toFixed(1); // To one degree of precision
lastNetworkDownloadSpeedTest.unixTimestampSec = Math.floor(
Date.now() / 1000
);
}
if (testUploadSpeed) {
// Randomly generate new upload speed
lastNetworkUploadSpeedTest.uploadSpeedMbps = (
Math.random() * 100
).toFixed(1); // To one degree of precision
lastNetworkUploadSpeedTest.unixTimestampSec = Math.floor(
Date.now() / 1000
);
}
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.lastNetworkDownloadSpeedTest': lastNetworkDownloadSpeedTest,
'states.lastNetworkUploadSpeedTest': lastNetworkUploadSpeedTest,
});
// This operation is asynchronous and will be pending
throw new Error('PENDING');
}
case 'action.devices.commands.GetGuestNetworkPassword': {
states['guestNetworkPassword'] = 'wifi-password-123';
break;
}
// action.devices.traits.OnOff
case 'action.devices.commands.OnOff': {
const {on} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.on': on,
});
states['on'] = on;
break;
}
// action.devices.traits.OpenClose
case 'action.devices.commands.OpenClose': {
// Check if the device can open in multiple directions
if (data!.attributes && data!.attributes.openDirection) {
// The device can open in more than one direction
const {openDirection} = execution.params!;
interface OpenState {
openPercent: number;
openDirection: 'UP' | 'DOWN' | 'LEFT' | 'RIGHT' | 'IN' | 'OUT';
}
data!.states.openState.forEach((state: OpenState) => {
if (state.openDirection === openDirection) {
state.openPercent = execution.params!.openPercent;
}
});
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.openState': data!.states.openState,
});
} else {
const {openPercent} = execution.params!;
// The device can only open in one direction
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.openPercent': openPercent,
});
states['openPercent'] = openPercent;
}
break;
}
// action.devices.traits.Reboot
case 'action.devices.commands.Reboot': {
// When the device reboots, we can make it go offline until the frontend turns it back on
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.online': false,
});
// Reboot trait is stateless
break;
}
// action.devices.traits.Rotation
case 'action.devices.commands.RotateAbsolute': {
const {rotationPercent, rotationDegrees} = execution.params!;
if (rotationPercent) {
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.rotationPercent': rotationPercent,
});
states['rotationPercent'] = rotationPercent;
} else if (rotationDegrees) {
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.rotationDegrees': rotationDegrees,
});
states['rotationDegrees'] = rotationDegrees;
}
break;
}
// action.devices.traits.RunCycle - No execution
// action.devices.traits.Scene
case 'action.devices.commands.ActivateScene': {
const {deactivate} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.deactivate': deactivate,
});
// Scenes are stateless
break;
}
// action.devices.traits.SoftwareUpdate
case 'action.devices.commands.SoftwareUpdate': {
// When the device reboots, we can make it go offline until the frontend turns it back on
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.lastSoftwareUpdateUnixTimestampSec': Math.floor(
new Date().getTime() / 1000
),
'states.online': false,
});
// SoftwareUpdate trait is stateless
break;
}
// action.devices.traits.StartStop
case 'action.devices.commands.StartStop': {
const {start} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.isRunning': start,
});
states['isRunning'] = start;
states['isPaused'] = data!.states.isPaused;
break;
}
case 'action.devices.commands.PauseUnpause': {
const {pause} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.isPaused': pause,
});
states['isPaused'] = pause;
states['isRunning'] = data!.states.isRunning;
break;
}
// action.devices.traits.TemperatureControl
case 'action.devices.commands.SetTemperature': {
const {temperature} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.temperatureSetpointCelsius': temperature,
});
states['temperatureSetpointCelsius'] = temperature;
states[
'temperatureAmbientCelsius'
] = data!.states.temperatureAmbientCelsius;
break;
}
// action.devices.traits.TemperatureSetting
case 'action.devices.commands.ThermostatTemperatureSetpoint': {
const {thermostatTemperatureSetpoint} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.thermostatTemperatureSetpoint': thermostatTemperatureSetpoint,
});
states['thermostatTemperatureSetpoint'] = thermostatTemperatureSetpoint;
states['thermostatMode'] = data!.states.thermostatMode;
states[
'thermostatTemperatureAmbient'
] = data!.states.thermostatTemperatureAmbient;
states[
'thermostatHumidityAmbient'
] = data!.states.thermostatHumidityAmbient;
break;
}
case 'action.devices.commands.ThermostatTemperatureSetRange': {
const {
thermostatTemperatureSetpointLow,
thermostatTemperatureSetpointHigh,
} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.thermostatTemperatureSetpointLow': thermostatTemperatureSetpointLow,
'states.thermostatTemperatureSetpointHigh': thermostatTemperatureSetpointHigh,
});
states[
'thermostatTemperatureSetpoint'
] = data!.states.thermostatTemperatureSetpoint;
states['thermostatMode'] = data!.states.thermostatMode;
states[
'thermostatTemperatureAmbient'
] = data!.states.thermostatTemperatureAmbient;
states[
'thermostatHumidityAmbient'
] = data!.states.thermostatHumidityAmbient;
break;
}
case 'action.devices.commands.ThermostatSetMode': {
const {thermostatMode} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.thermostatMode': thermostatMode,
});
states['thermostatMode'] = thermostatMode;
states[
'thermostatTemperatureSetpoint'
] = data!.states.thermostatTemperatureSetpoint;
states[
'thermostatTemperatureAmbient'
] = data!.states.thermostatTemperatureAmbient;
states[
'thermostatHumidityAmbient'
] = data!.states.thermostatHumidityAmbient;
break;
}
// action.devices.traits.Timer
case 'action.devices.commands.TimerStart': {
const {timerTimeSec} = execution.params!;
await db
.collection('users')
.doc(userId)
.collection('devices')
.doc(deviceId)
.update({
'states.timerRemainingSec': timerTimeSec,
});
states['timerRemainingSec'] = timerTimeSec;
break;
}
case 'action.devices.commands.TimerAdjust': {
if (data!.states.timerRemainingSec === -1) {
// No timer exists
throw new Error('noTimerExists');
}
const {timerTimeSec} = execution.params!;
const newTimerRemainingSec =
data!.states.timerRemainingSec + timerTimeSec;
if (newTimerRemainingSec < 0) {
throw new Error('valueOutOfRange');
}
await db
.collection('users')
.doc(userId)
.collection('devices')