// 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 vault_quickstart]
import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.util.store.FileDataStoreFactory;
import com.google.api.services.vault.v1.VaultScopes;
import com.google.api.services.vault.v1.model.*;
import com.google.api.services.vault.v1.Vault;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.List;

public class Quickstart {
    /** Application name. */
    private static final String APPLICATION_NAME =
        "Google Vault API Java Quickstart";

    /** Directory to store authorization tokens for this application. */
    private static final java.io.File DATA_STORE_DIR = new java.io.File("tokens");

    /** Global instance of the {@link FileDataStoreFactory}. */
    private static FileDataStoreFactory DATA_STORE_FACTORY;

    /** Global instance of the JSON factory. */
    private static final JsonFactory JSON_FACTORY = GsonFactory.getDefaultInstance();

    /** Global instance of the HTTP transport. */
    private static HttpTransport HTTP_TRANSPORT;

    private static final String CREDENTIALS_FILE_PATH = "/credentials.json";

    /** Global instance of the scopes required by this quickstart.
     *
     * If modifying these scopes, delete your previously saved credentials
     * at ~/.credentials/vault.googleapis.com-java-quickstart
     */
    private static final List<String> SCOPES =
        Arrays.asList(VaultScopes.EDISCOVERY_READONLY);

    static {
        try {
            HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
            DATA_STORE_FACTORY = new FileDataStoreFactory(DATA_STORE_DIR);
        } catch (Throwable t) {
            t.printStackTrace();
            System.exit(1);
        }
    }

    /**
     * Creates an authorized Credential object.
     * @return an authorized Credential object.
     * @throws IOException
     */
    public static Credential authorize() throws IOException {
        // Load client secrets.
        InputStream in =
            Quickstart.class.getResourceAsStream("/credentials.json");
        if (in == null) {
            throw new FileNotFoundException("Resource not found: " + CREDENTIALS_FILE_PATH);
        }
        GoogleClientSecrets clientSecrets =
                GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));

        // Build flow and trigger user authorization request.
        GoogleAuthorizationCodeFlow flow =
                new GoogleAuthorizationCodeFlow.Builder(
                        HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
                .setDataStoreFactory(DATA_STORE_FACTORY)
                .setAccessType("offline")
                .build();
        Credential credential = new AuthorizationCodeInstalledApp(
            flow, new LocalServerReceiver()).authorize("user");
        System.out.println(
                "Credentials saved to " + DATA_STORE_DIR.getAbsolutePath());
        return credential;
    }

    /**
     * Build and return an authorized Vault client service.
     * @return an authorized Vault client service
     * @throws IOException
     */
    public static Vault getVaultService() throws IOException {
        Credential credential = authorize();
        return new Vault.Builder(HTTP_TRANSPORT, JSON_FACTORY, credential)
                .setApplicationName(APPLICATION_NAME)
                .build();
    }

    public static void main(String[] args) throws IOException {
        // Build a new authorized API client service.
        Vault service = getVaultService();

        // List the first 10 matters.
        ListMattersResponse response = service.matters().list()
            .setPageSize(10)
            .execute();
        List<Matter> matters = response.getMatters();
        if (matters == null || matters.size() == 0) {
            System.out.println("No matters found.");
        } else {
            System.out.println("Matters:");
            for (Matter matter: matters) {
                System.out.printf("%s (%s)\n", matter.getName(),
                        matter.getMatterId());
            }
        }
    }
}
// [END vault_quickstart]

@@ -5082,21 +5082,30 @@
     
-%7D else %7B%0A    
+    return;%0A        %7D%0A
     
@@ -5148,20 +5148,16 @@
         
-   
- 
 for (Mat
@@ -5175,28 +5175,24 @@
  matters) %7B%0A
-    
             
@@ -5260,20 +5260,16 @@
         
-    
 matter.g
@@ -5287,22 +5287,8 @@
 ));%0A
-            %7D%0A
     

Switch to guard clause