Created account package

app/src/main/java/org/communiquons/android/comunic/client/LoginActivity.java

@@ -11,6 +11,7 @@ import android.widget.TextView;
 import android.widget.Toast;
 
 import org.communiquons.android.comunic.client.data.Account.Account;
+import org.communiquons.android.comunic.client.data.Account.AccountUtils;
 import org.communiquons.android.comunic.client.data.Utilities;
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -32,6 +33,11 @@ public class LoginActivity extends AppCompatActivity {
      */
     private Utilities utils;
 
+    /**
+     * Account utilities object
+     */
+    private AccountUtils aUtils;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -40,6 +46,9 @@ public class LoginActivity extends AppCompatActivity {
         //Create utilities object
         utils = new Utilities(this);
 
+        //Create account utilities object
+        aUtils = new AccountUtils(this);
+
         //Check for connectivity
         if(!APIRequestTask.isAPIavailable(this)){
             Toast.makeText(this, R.string.err_no_internet_connection, Toast.LENGTH_SHORT).show();
@@ -163,9 +172,23 @@ public class LoginActivity extends AppCompatActivity {
             return;
         }
 
-        //Redirect to the main activity
+        //Refresh current user ID
-        Intent redirect = new Intent(this, MainActivity.class);
+        aUtils.refresh_current_user_id(new AccountUtils.onceRefreshedUserID(){
-        startActivity(redirect);
+            @Override
+            public void callback(boolean success) {
+
+                //Check if it is a success or a failure
+                if(!success){
+                    show_err_server_response();
+                }
+                else {
+                    //Redirect to the main activity
+                    Intent redirect = new Intent(LoginActivity.this, MainActivity.class);
+                    startActivity(redirect);
+                }
+
+            }
+        });
 
     }
 

app/src/main/java/org/communiquons/android/comunic/client/MainActivity.java

@@ -11,6 +11,7 @@ import android.widget.Toast;
 
 import org.communiquons.android.comunic.client.api.APIRequestTask;
 import org.communiquons.android.comunic.client.data.Account.Account;
+import org.communiquons.android.comunic.client.data.Account.AccountUtils;
 import org.communiquons.android.comunic.client.data.DatabaseHelper;
 import org.communiquons.android.comunic.client.data.UsersInfo.GetUsersInfos;
 import org.communiquons.android.comunic.client.data.UsersInfo.UserInfo;
@@ -24,9 +25,14 @@ import org.communiquons.android.comunic.client.data.UsersInfo.UserInfo;
 public class MainActivity extends AppCompatActivity {
 
     /**
-     * Acount object
+     * Account object
      */
-    Account account;
+    private Account account;
+
+    /**
+     * Account utils object
+     */
+    private AccountUtils aUtils;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -38,14 +44,15 @@ public class MainActivity extends AppCompatActivity {
             Toast.makeText(this, R.string.err_no_internet_connection, Toast.LENGTH_SHORT).show();
         }
 
-        //Initialize account object
+        //Initialize account objects
         account = new Account(this);
+        aUtils = new AccountUtils(this);
 
         //DEVELOPMENT : Try to get information about a user over the network
         GetUsersInfos uInfos = new GetUsersInfos(this, new DatabaseHelper(this));
         
         //Get infos... about me! :)
-        final int uID = 1;
+        final int uID = aUtils.get_current_user_id();
         uInfos.get(uID, new GetUsersInfos.getUserInfosCallback() {
             @Override
             public void callback(UserInfo info) {

app/src/main/java/org/communiquons/android/comunic/client/data/Account/AccountUtils.java

@@ -0,0 +1,140 @@
+package org.communiquons.android.comunic.client.data.Account;
+
+import android.content.Context;
+
+import org.communiquons.android.comunic.client.api.APIRequestParameters;
+import org.communiquons.android.comunic.client.api.APIRequestTask;
+import org.communiquons.android.comunic.client.api.APIResponse;
+import org.communiquons.android.comunic.client.data.Utilities;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+/**
+ * Account utilities functions
+ *
+ * @author Pierre HUBERT
+ * Created by pierre on 11/5/17.
+ */
+
+public class AccountUtils {
+
+    /**
+     * Execution context
+     */
+    private Context mContext;
+
+    /**
+     * Utilities object
+     */
+    private Utilities utils;
+
+    /**
+     * The name of the userID file
+     */
+    private static final String USER_ID_FILENAME = "user_id.txt";
+
+    /**
+     * The constructor of the object
+     *
+     * @param context The constructor of the application
+     */
+    public AccountUtils(Context context){
+
+        //Save context
+        mContext = context;
+
+        //Create utilities object
+        utils = new Utilities(context);
+
+    }
+
+    /**
+     * This interface has to be implemented and passed as an argument of refresh_current_user_id()
+     */
+    public interface onceRefreshedUserID{
+        /**
+         * Callback function
+         *
+         * @param success True in case of success / false else
+         */
+        void callback(boolean success);
+    }
+
+    /**
+     * Refresh current user ID
+     *
+     * @param callback What to do once userID is refreshed
+     */
+    public void refresh_current_user_id(final onceRefreshedUserID callback){
+
+        //Perform an API request
+        APIRequestParameters params = new APIRequestParameters(mContext, "user/getCurrentUserID");
+        new APIRequestTask(){
+            @Override
+            protected void onPostExecute(APIResponse result) {
+
+                //Remove old user ID
+                save_new_user_id(-1);
+
+                JSONObject response = result.getJSONObject();
+
+                //Check for errors
+                if(response == null)
+                    callback.callback(false);
+
+
+                //Try to extract and save user ID
+                try {
+                    assert response != null;
+                    int userID = response.getInt("userID");
+                    callback.callback(
+                            save_new_user_id(userID)); //The success of the operation depends of the
+                                                        //ability to save it too.
+
+                } catch (Exception e) {
+                    e.printStackTrace();
+
+                }
+            }
+        }.execute(params);
+
+    }
+
+    /**
+     * Save new user ID
+     *
+     * @param id The new ID to save
+     * @return True in case of success / false else
+     */
+    private boolean save_new_user_id(int id){
+
+        //Save new file content
+        return utils.file_put_contents(USER_ID_FILENAME, ""+id);
+
+    }
+
+    /**
+     * Get the current user ID
+     *
+     * @return The user ID or -1 in case of error
+     */
+    public int get_current_user_id(){
+
+        //Get file content
+        String userIDstring = utils.file_get_content(USER_ID_FILENAME);
+
+        //Convert into an int
+        try {
+            int userIDid = Integer.decode(userIDstring);
+
+            //Return user ID
+            return userIDid > 0 ? userIDid : -1;
+        } catch (NumberFormatException e){
+            e.printStackTrace();
+
+            //This is a failure
+            return -1;
+        }
+    }
+
+}

app/src/main/java/org/communiquons/android/comunic/client/data/UsersInfo/GetUsersInfos.java

@@ -66,13 +66,19 @@ public class GetUsersInfos {
      */
     public void get(int id, getUserInfosCallback callback){
 
+        //Check if the ID is positive, error else
+        if(id < 1){
+            callback.callback(null); //This is an error
+        }
+
         //Check if the user is already present in the database or not
         if(!udbHelper.exists(id))
             //Perform a request on the server
-        getOnServer(id, callback);
+            getOnServer(id, callback);
 
         //Else we can retrieve user informations from the local database
-        callback.callback(udbHelper.get(id));
+        else
+            callback.callback(udbHelper.get(id));
 
     }
 
@@ -98,20 +104,29 @@ public class GetUsersInfos {
                 UserInfo userInfos = null;
 
                 try {
+                    if(result != null) {
 
-                    //Try to extract user informations
+                        //Try to extract user informations
-                    JSONObject userObject = result.getJSONObject().getJSONObject(""+id);
+                        JSONObject userObjectContainer = result.getJSONObject();
+
+                        if (userObjectContainer != null) {
+
+                            //Extract user object
+                            JSONObject userObject = userObjectContainer.getJSONObject("" + id);
+
+                            //Continue only if we could extract required informations
+                            if (userObject != null) {
+                                //Parse user informations
+                                userInfos = parse_user_json(userObject);
+                            }
+
+                            //Save user information in the local database in case of success
+                            if (userInfos != null)
+                                udbHelper.insertOrUpdate(userInfos);
+                        }
 
-                    //Continue only if we could extract required informations
-                    if (userObject != null) {
-                        //Parse user informations
-                        userInfos = parse_user_json(userObject);
                     }
 
-                    //Save user information in the local database in case of success
-                    if(userInfos != null)
-                        udbHelper.insertOrUpdate(userInfos);
-
                 } catch (JSONException e){
                     e.printStackTrace();
                 }