// Copyright 2018 Google LLC

//

// 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.

// [START functions_firebase_rtdb]

/**

* Triggered by a change to a Firebase RTDB reference.

*

* @param {!Object} event The Cloud Functions event.

*/

exports.helloRTDB = (event) => {

const triggerResource = event.resource;

const pathParams = event.params;

if (pathParams) {

console.log(`Path parameters:`);

Object.keys(pathParams).forEach((key) => {

console.log(` ${key}: ${pathParams[key]}`);

});

}

console.log(`Function triggered by change to: ${triggerResource}`);

console.log(`Admin?: ${!!event.auth.admin}`);

console.log(`Delta:`);

console.log(JSON.stringify(event.delta, null, 2));

};

// [END functions_firebase_rtdb]

// [START functions_firebase_firestore]

/**

* Triggered by a change to a Firestore document.

*

* @param {!Object} event The Cloud Functions event.

*/

exports.helloFirestore = (event) => {

const triggerResource = event.resource;

console.log(`Function triggered by event on: ${triggerResource}`);

console.log(`Event type: ${event.eventType}`);

if (event.data.oldValue && Object.keys(event.data.oldValue).length) {

console.log(`\nOld value:`);

console.log(JSON.stringify(event.data.oldValue, null, 2));

}

if (event.data.value && Object.keys(event.data.value).length) {

console.log(`\nNew value:`);

console.log(JSON.stringify(event.data.value, null, 2));

}

};

// [END functions_firebase_firestore]

// [START functions_firebase_auth]

/**

* Triggered by a change to a Firebase Auth user object.

*

* @param {!Object} event The Cloud Functions event.

*/

exports.helloAuth = (event) => {

try {

const {data} = event;

console.log(`Function triggered by change to user: ${data.uid}`);

console.log(`Created at: ${data.metadata.createdAt}`);

if (event.data.email) {

console.log(`Email: ${data.email}`);

}

} catch (err) {

console.error(err);

}

};

// [END functions_firebase_auth]

// [START functions_firebase_reactive]

const Firestore = require('@google-cloud/firestore');

const firestore = new Firestore({

projectId: process.env.GCP_PROJECT,

});

// Converts strings added to /messages/{pushId}/original to uppercase

exports.makeUpperCase = (event) => {

const {resource} = event;

const affectedDoc = firestore.doc(resource.split('/documents/')[1]);

const curValue = event.data.value.fields.original.stringValue;

const newValue = curValue.toUpperCase();

console.log(`Replacing value: ${curValue} --> ${newValue}`);

return affectedDoc.set({

original: newValue,

});

};

// [END functions_firebase_reactive]

// [START functions_firebase_analytics]

/**

* Triggered by a Google Analytics for Firebase log event.

*

* @param {!Object} event The Cloud Functions event.

*/

exports.helloAnalytics = (event) => {

const {resource} = event;

console.log(`Function triggered by the following event: ${resource}`);

const [analyticsEvent] = event.data.eventDim;

console.log(`Name: ${analyticsEvent.name}`);

console.log(`Timestamp: ${new Date(analyticsEvent.timestampMicros / 1000)}`);

const userObj = event.data.userDim;

console.log(`Device Model: ${userObj.deviceInfo.deviceModel}`);

console.log(`Location: ${userObj.geoInfo.city}, ${userObj.geoInfo.country}`);

};

// [END functions_firebase_analytics]

// [START functions_firebase_remote_config]

/**

* Triggered by a change to a Firebase Remote Config value.

*

* @param {object} data The Cloud Functions event data.

*/

exports.helloRemoteConfig = (event) => {

const {data} = event;

console.log(`Update type: ${data.updateType}`);

console.log(`Origin: ${data.updateOrigin}`);

console.log(`Version: ${data.versionNumber}`);

};

// [END functions_firebase_remote_config]