EOD

src/main/java/tech/nevets/todoserver/JSONLoader.java

@@ -29,6 +29,7 @@ public class JSONLoader {
             writer = new FileWriter(jsonFile);
             writer.write(GSON.toJson(json));
             writer.flush();
+            writer.close();
         } catch (IOException e) {
             LOGGER.error("Error saving jsonFile...");
             e.printStackTrace();

src/main/java/tech/nevets/todoserver/Server.java

@@ -7,6 +7,8 @@ import spark.Request;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Timer;
+import java.util.TimerTask;
 
 import static spark.Spark.*;
 
@@ -33,9 +35,12 @@ public class Server {
                 return "To Do List Item: " + req.params("itemId");
             });
 
-            post("/create/:listId", (req, res) -> {
+            post("/create", (req, res) -> {
                 checkAuth(req);
 
+                ToDoList toDoList = new ToDoList();
+                toDoList.setId(ToDoListManager.getLastIndex());
+
                 return "Create To Do List";
             });
 
@@ -69,6 +74,13 @@ public class Server {
             });
 
         });
+
+        new Timer().schedule(new TimerTask() {
+            @Override
+            public void run() {
+                ToDoListManager.saveToDoLists();
+            }
+        }, 0, 14400000);
     }
 
     private static void checkAuth(Request req) {

src/main/java/tech/nevets/todoserver/ToDoListManager.java

@@ -0,0 +1,96 @@
+package tech.nevets.todoserver;
+
+import com.google.gson.Gson;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class ToDoListManager {
+    public static final List<ToDoList> TO_DO_LISTS = new ArrayList<>();
+    private static final Logger LOGGER = LoggerFactory.getLogger(ToDoListManager.class);
+    private static final Gson GSON = new Gson();
+    private static boolean isListChanged = false;
+    private static int lastIndex = 0;
+
+    public static int getLastIndex() {
+        return lastIndex;
+    }
+
+    public static List<ToDoList> getToDoListsByOwner(String authKey) { // Again, this is terrible security wise, TODO Change with account system
+        List<ToDoList> listList = new ArrayList<>();
+        for (ToDoList toDoList : TO_DO_LISTS) {
+            if (toDoList.getOwnerAuthKey().equals(authKey)) {
+                listList.add(toDoList);
+            }
+        }
+        return listList;
+    }
+
+    public static void addToDoList(ToDoList toDoList) {
+        TO_DO_LISTS.add(toDoList);
+        isListChanged = true;
+    }
+
+    public static void updateToDoList(ToDoList toDoList) {
+        for (int i = 0; i < TO_DO_LISTS.size(); i++) {
+            if (TO_DO_LISTS.get(i).getId() == toDoList.getId()) {
+                TO_DO_LISTS.set(i, toDoList);
+            }
+        }
+        isListChanged = true;
+    }
+
+    public static void loadToDoLists() {
+        File listDirs = new File("./lists/");
+        if (!listDirs.exists()) {
+            listDirs.mkdirs();
+        }
+
+        File[] listFiles = listDirs.listFiles();
+        if (listFiles == null) {
+            LOGGER.info("Lists Directory is empty");
+            return;
+        }
+        try {
+            for (File listFile : listFiles) {
+                TO_DO_LISTS.add(GSON.fromJson(new FileReader(listFile), ToDoList.class));
+            }
+            lastIndex = listFiles.length + 1;
+        } catch (IOException e) {
+            LOGGER.error("Error reading todo lists");
+            e.printStackTrace();
+        }
+    }
+
+    public static void saveToDoLists() {
+        if (!isListChanged) {
+            return;
+        }
+
+        File listDirs = new File("./lists/");
+        if (!listDirs.exists()) {
+            listDirs.mkdirs();
+        }
+
+        for (ToDoList toDoList : TO_DO_LISTS) {
+            File toDoFile = new File(listDirs.getAbsolutePath() + "/" + toDoList.getId() + ".json");
+            FileWriter writer;
+            try {
+                writer = new FileWriter(toDoFile);
+                writer.write(GSON.toJson(toDoList));
+                writer.flush();
+                writer.close();
+            } catch (IOException e) {
+                LOGGER.error("Error writing todo list to file");
+                e.printStackTrace();
+            }
+        }
+        isListChanged = false;
+    }
+}