/*

* Copyright (C) 2015 The Android Open Source Project

*

* 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.

*/

/*

Refer the following link for original code of Google Services Gradle Plugin(this is modified from that code to use it with java):

https://github.com/google/play-services-plugins/tree/master/google-services-plugin

*/

import java.io.File;

import java.util.TreeMap;

import java.util.Map;

import com.google.gson.JsonArray;

import com.google.gson.JsonElement;

import com.google.gson.JsonObject;

import com.google.gson.JsonParser;

import com.google.gson.JsonPrimitive;

import com.google.common.base.Charsets;

import com.google.common.io.Files;

import java.io.IOException;

import com.google.common.base.Strings;

public class gs{

private static File intermediateDir;

private static final String STATUS_DISABLED = "1";

private static final String STATUS_ENABLED = "2";

private static final String OAUTH_CLIENT_TYPE_WEB = "3";

public static void main(String[] args) throws IOException{

System.out.println("Started");

File quickstartFile = new File("google-services.json");

if (quickstartFile == null || !quickstartFile.isFile()) {

System.out.println("The Google Services Plugin cannot function without it.");

}

System.out.println("Parsing json file: " + quickstartFile.getPath());

// delete content of outputdir.

intermediateDir = new File("Interm");

deleteFolder(intermediateDir);

if (!intermediateDir.mkdirs()) {

System.out.println("Failed to create folder: " + intermediateDir);

}

try

{

JsonElement root = new JsonParser().parse(Files.newReader(quickstartFile, Charsets.UTF_8));

if (!root.isJsonObject()) {

System.out.println("Malformed root json");

}

JsonObject rootObject = root.getAsJsonObject();

Map<String, String> resValues = new TreeMap<>();

Map<String, Map<String, String>> resAttributes = new TreeMap<>();

handleProjectNumberAndProjectId(rootObject, resValues);

handleFirebaseurl(/sitelet?url=https%3A%2F%2Fgithub.com%2Frupeshkumar22%2Fgoogle-services-java-plugin%2Fblob%2Fmain%2FrootObject%2C%2520resValues);

JsonObject clientObject = getClientForPackageName(rootObject);

if (clientObject != null) {

handleAnalytics(clientObject, resValues);

handleMapsService(clientObject, resValues);

handleGoogleApiKey(clientObject, resValues);

handleGoogleAppId(clientObject, resValues);

handleWebClientId(clientObject, resValues);

} else {

System.out.println("No matching client found for package name ");

}

// write the values file.

File values = new File(intermediateDir, "values");

if (!values.exists() && !values.mkdirs()) {

System.out.println("Failed to create folder: " + values);

}

Files.asCharSink(new File(values, "values.xml"), Charsets.UTF_8)

.write(getValuesContent(resValues, resAttributes));

}

catch (IOException ex)

{

System.out.println("FileNotFoundException");

}

}

static void deleteFolder(final File folder) {

if (!folder.exists()) {

return;

}

File[] files = folder.listFiles();

if (files != null) {

for (final File file : files) {

if (file.isDirectory()) {

deleteFolder(file);

} else {

if (!file.delete()) {

System.out.println("Failed to delete: " + file);

}

}

}

}

if (!folder.delete()) {

System.out.println("Failed to delete: " + folder);

}

}

static void handleProjectNumberAndProjectId(JsonObject rootObject, Map<String, String> resValues)

throws IOException {

JsonObject projectInfo = rootObject.getAsJsonObject("project_info");

if (projectInfo == null) {

System.out.println("Missing project_info object");

}

JsonPrimitive projectNumber = projectInfo.getAsJsonPrimitive("project_number");

if (projectNumber == null) {

System.out.println("Missing project_info/project_number object");

}

resValues.put("gcm_defaultSenderId", projectNumber.getAsString());

JsonPrimitive projectId = projectInfo.getAsJsonPrimitive("project_id");

if (projectId == null) {

System.out.println("Missing project_info/project_id object");

}

resValues.put("project_id", projectId.getAsString());

JsonPrimitive bucketName = projectInfo.getAsJsonPrimitive("storage_bucket");

if (bucketName != null) {

resValues.put("google_storage_bucket", bucketName.getAsString());

}

}

static void handleFirebaseurl(/sitelet?url=https%3A%2F%2Fgithub.com%2Frupeshkumar22%2Fgoogle-services-java-plugin%2Fblob%2Fmain%2FJsonObject%2520rootObject%2C%2520Map%26lt%3BString%2C%2520String%26gt%3B%2520resValues)

throws IOException {

JsonObject projectInfo = rootObject.getAsJsonObject("project_info");

if (projectInfo == null) {

System.out.println("Missing project_info object");

}

JsonPrimitive firebaseUrl = projectInfo.getAsJsonPrimitive("firebase_url");

if (firebaseUrl != null) {

resValues.put("firebase_database_url", firebaseUrl.getAsString());

}

}

static void handleAnalytics(JsonObject clientObject, Map<String, String> resValues)

throws IOException {

JsonObject analyticsService = getServiceByName(clientObject, "analytics_service");

if (analyticsService == null) return;

JsonObject analyticsProp = analyticsService.getAsJsonObject("analytics_property");

if (analyticsProp == null) return;

JsonPrimitive trackingId = analyticsProp.getAsJsonPrimitive("tracking_id");

if (trackingId == null) return;

resValues.put("ga_trackingId", trackingId.getAsString());

File xml = new File(intermediateDir, "xml");

if (!xml.exists() && !xml.mkdirs()) {

System.out.println("Failed to create folder: " + xml);

}

Files.asCharSink(new File(xml, "global_tracker.xml"), Charsets.UTF_8)

.write(getGlobalTrackerContent(trackingId.getAsString()));

}

static void handleMapsService(JsonObject clientObject, Map<String, String> resValues)

throws IOException {

JsonObject mapsService = getServiceByName(clientObject, "maps_service");

if (mapsService == null) return;

String apiKey = getAndroidApiKey(clientObject);

if (apiKey != null) {

resValues.put("google_maps_key", apiKey);

return;

}

System.out.println("Missing api_key/current_key object");

}

static JsonObject getClientForPackageName(JsonObject jsonObject) {

JsonArray array = jsonObject.getAsJsonArray("client");

if (array != null) {

final int count = array.size();

for (int i = 0; i < count; i++) {

JsonElement clientElement = array.get(i);

if (clientElement == null || !clientElement.isJsonObject()) {

continue;

}

JsonObject clientObject = clientElement.getAsJsonObject();

JsonObject clientInfo = clientObject.getAsJsonObject("client_info");

if (clientInfo == null) continue;

JsonObject androidClientInfo = clientInfo.getAsJsonObject("android_client_info");

if (androidClientInfo == null) continue;

JsonPrimitive clientPackageName = androidClientInfo.getAsJsonPrimitive("package_name");

if (clientPackageName == null) continue;

if (getApplicationId().equals(clientPackageName.getAsString())) {

return clientObject;

}

}

}

return null;

}

static JsonObject getServiceByName(JsonObject clientObject, String serviceName) {

JsonObject services = clientObject.getAsJsonObject("services");

if (services == null) return null;

JsonObject service = services.getAsJsonObject(serviceName);

if (service == null) return null;

JsonPrimitive status = service.getAsJsonPrimitive("status");

if (status == null) return null;

String statusStr = status.getAsString();

if (STATUS_DISABLED.equals(statusStr)) return null;

if (!STATUS_ENABLED.equals(statusStr)) {

System.out.println(

String.format(

"Status with value '%1$s' for service '%2$s' is unknown",

statusStr, serviceName));

return null;

}

return service;

}

static String getGlobalTrackerContent(String ga_trackingId) {

return "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"

+ "<resources>\n"

+ " <string name=\"ga_trackingId\" translatable=\"false\">"

+ ga_trackingId

+ "</string>\n"

+ "</resources>\n";

}

static String getAndroidApiKey(JsonObject clientObject) {

JsonArray array = clientObject.getAsJsonArray("api_key");

if (array != null) {

final int count = array.size();

for (int i = 0; i < count; i++) {

JsonElement apiKeyElement = array.get(i);

if (apiKeyElement == null || !apiKeyElement.isJsonObject()) {

continue;

}

JsonObject apiKeyObject = apiKeyElement.getAsJsonObject();

JsonPrimitive currentKey = apiKeyObject.getAsJsonPrimitive("current_key");

if (currentKey == null) {

continue;

}

return currentKey.getAsString();

}

}

return null;

}

static String getApplicationId(){

return "com.example.testjsontostrings";

}

static void handleGoogleApiKey(JsonObject clientObject, Map<String, String> resValues) {

String apiKey = getAndroidApiKey(clientObject);

if (apiKey != null) {

resValues.put("google_api_key", apiKey);

// TODO: remove this once SDK starts to use google_api_key.

resValues.put("google_crash_reporting_api_key", apiKey);

return;

}

// if google_crash_reporting_api_key is missing.

System.out.println("Missing api_key/current_key object");

}

static void handleGoogleAppId(JsonObject clientObject, Map<String, String> resValues)

throws IOException {

JsonObject clientInfo = clientObject.getAsJsonObject("client_info");

if (clientInfo == null) {

// Should not happen

System.out.println("Client does not have client info");

}

JsonPrimitive googleAppId = clientInfo.getAsJsonPrimitive("mobilesdk_app_id");

String googleAppIdStr = googleAppId == null ? null : googleAppId.getAsString();

if (Strings.isNullOrEmpty(googleAppIdStr)) {

System.out.println(

"Missing Google App Id. "

+ "Please follow instructions on https://firebase.google.com/ to get a valid "

+ "config file that contains a Google App Id");

}

resValues.put("google_app_id", googleAppIdStr);

}

static void handleWebClientId(JsonObject clientObject, Map<String, String> resValues) {

JsonArray array = clientObject.getAsJsonArray("oauth_client");

if (array != null) {

final int count = array.size();

for (int i = 0; i < count; i++) {

JsonElement oauthClientElement = array.get(i);

if (oauthClientElement == null || !oauthClientElement.isJsonObject()) {

continue;

}

JsonObject oauthClientObject = oauthClientElement.getAsJsonObject();

JsonPrimitive clientType = oauthClientObject.getAsJsonPrimitive("client_type");

if (clientType == null) {

continue;

}

String clientTypeStr = clientType.getAsString();

if (!OAUTH_CLIENT_TYPE_WEB.equals(clientTypeStr)) {

continue;

}

JsonPrimitive clientId = oauthClientObject.getAsJsonPrimitive("client_id");

if (clientId == null) {

continue;

}

resValues.put("default_web_client_id", clientId.getAsString());

return;

}

}

}

static String getValuesContent(

Map<String, String> values, Map<String, Map<String, String>> attributes) {

StringBuilder sb = new StringBuilder(256);

sb.append("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" + "<resources>\n");

for (Map.Entry<String, String> entry : values.entrySet()) {

String name = entry.getKey();

sb.append(" <string name=\"").append(name).append("\" translatable=\"false\"");

if (attributes.containsKey(name)) {

for (Map.Entry<String, String> attr : attributes.get(name).entrySet()) {

sb.append(" ").append(attr.getKey()).append("=\"").append(attr.getValue()).append("\"");

}

}

sb.append(">").append(entry.getValue()).append("</string>\n");

}

sb.append("</resources>\n");

return sb.toString();

}

}