Menu Viewing!

.idea/deploymentTargetDropDown.xml

@@ -3,7 +3,20 @@
   <component name="deploymentTargetDropDown">
     <value>
       <entry key="app">
-        <State />
+        <State>
+          <runningDeviceTargetSelectedWithDropDown>
+            <Target>
+              <type value="RUNNING_DEVICE_TARGET" />
+              <deviceKey>
+                <Key>
+                  <type value="SERIAL_NUMBER" />
+                  <value value="R5CRB1GE0RY" />
+                </Key>
+              </deviceKey>
+            </Target>
+          </runningDeviceTargetSelectedWithDropDown>
+          <timeTargetWasSelectedWithDropDown value="2024-02-17T18:39:39.847936576Z" />
+        </State>
       </entry>
     </value>
   </component>

app/src/main/java/com/thebrokenrail/mtudining/activity/menu/MenuActivity.java

@@ -25,6 +25,7 @@ public class MenuActivity extends AppCompatActivity {
     public static final String NAME_EXTRA = "mtu_name";
     public static final String ID_EXTRA = "mtu_id";
 
+    private MenuViewModel viewModel;
     private MenuAdapter adapter;
 
     @Override
@@ -41,13 +42,15 @@ public class MenuActivity extends AppCompatActivity {
 
         // Get View Model
         ViewModelProvider viewModelProvider = new ViewModelProvider(this);
-        MenuViewModel viewModel = viewModelProvider.get(MenuViewModel.class);
+        viewModel = viewModelProvider.get(MenuViewModel.class);
 
         // Get Info
         String name = getIntent().getStringExtra(NAME_EXTRA);
-        String id = getIntent().getStringExtra(ID_EXTRA);
         toolbar.setTitle(name);
+        String id = getIntent().getStringExtra(ID_EXTRA);
+        if (!viewModel.task.isSetup()) {
             viewModel.task.setup(id, new Date());
+        }
 
         // Setup RecyclerView
         adapter = new MenuAdapter(viewModel.task);
@@ -55,6 +58,9 @@ public class MenuActivity extends AppCompatActivity {
         recyclerView.setLayoutManager(new LinearLayoutManager(this));
         recyclerView.setAdapter(adapter);
         EdgeToEdgeUtil.setup(this, recyclerView);
+
+        // Handle Existing Date Picker
+        MenuDatePicker.setupListeners(getSupportFragmentManager());
     }
 
     @Override
@@ -73,4 +79,13 @@ public class MenuActivity extends AppCompatActivity {
             return super.onOptionsItemSelected(item);
         }
     }
+
+    /**
+     * Update selected date.
+     * @param newDate New date
+     */
+    public void updateDate(Date newDate) {
+        viewModel.task.setup(null, newDate);
+        viewModel.task.start();
+    }
 }

app/src/main/java/com/thebrokenrail/mtudining/activity/menu/MenuAdapter.java

@@ -1,6 +1,5 @@
 package com.thebrokenrail.mtudining.activity.menu;
 
-import android.text.InputType;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -9,13 +8,15 @@ import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.RecyclerView;
 
 import com.google.android.material.textfield.MaterialAutoCompleteTextView;
-import com.google.android.material.textfield.TextInputEditText;
 import com.google.android.material.textfield.TextInputLayout;
 import com.thebrokenrail.mtudining.R;
 import com.thebrokenrail.mtudining.activity.task.Task;
 import com.thebrokenrail.mtudining.activity.task.TaskAdapter;
 import com.thebrokenrail.mtudining.util.DateUtil;
 import com.thebrokenrail.mtudining.widget.CategoryView;
+import com.thebrokenrail.mtudining.widget.CustomDropDownView;
+
+import java.util.Date;
 
 /**
  * Adapter for listing dining halls.
@@ -34,32 +35,57 @@ class MenuAdapter extends TaskAdapter<MenuData> {
         return category;
     }
 
+    /**
+     * Get currently selected meal.
+     * @return A meal menu
+     */
+    private MenuData.Meal getMeal() {
+        if (getResult() != null) {
+            for (MenuData.Meal meal : getResult().meals) {
+                if (meal.name.equals(getResult().selectedMeal)) {
+                    // Found Meal
+                    return meal;
+                }
+            }
+        }
+        // Could Not Find Meal
+        return null;
+    }
+
     @Override
     protected void bindItemView(View view, int position) {
-        /*ListData.Category data = getResult().categories.get(position);
+        MenuData.Meal meal = getMeal();
+        assert meal != null;
+        MenuData.Meal.Category data = meal.categories.get(position - getFirstElementPosition());
         // Setup View
         CategoryView category = (CategoryView) view;
         category.setup(data.isOpen, data.name, () -> {
             // Open/Close Category
             data.isOpen = !data.isOpen;
-            notifyItemChanged(getResult().categories.indexOf(data));
+            notifyItemChanged(meal.categories.indexOf(data) + getFirstElementPosition());
         });
         // Add Locations
         category.clearItems();
-        for (ListData.Category.Element location : data.locations) {
+        for (MenuData.Meal.Category.Element item : data.items) {
-            category.addItem(location.name, () -> {
+            category.addItem(item.name, () -> {
                 // Do Something!
             });
-        }*/
+        }
     }
 
     @Override
     protected int getDataSize() {
+        MenuData.Meal meal = getMeal();
+        if (meal != null) {
+            return meal.categories.size();
+        } else {
             return 0;
         }
+    }
 
     @Override
     protected View createHeader(@NonNull ViewGroup parent) {
+        // Inflate Header XML
         LayoutInflater layoutInflater = LayoutInflater.from(parent.getContext());
         return layoutInflater.inflate(R.layout.menu_header, parent, false);
     }
@@ -67,16 +93,49 @@ class MenuAdapter extends TaskAdapter<MenuData> {
     @Override
     protected void bindHeader(View view) {
         // Set Date
+        CustomDropDownView dateField = view.findViewById(R.id.menu_date_field);
         MaterialAutoCompleteTextView date = view.findViewById(R.id.menu_date);
         // Retrieve from Task as this must show even when result is not available.
-        date.setText(DateUtil.toString(((MenuTask) getTask()).getDate()));
+        Date current = ((MenuTask) getTask()).getDate();
+        date.setText(DateUtil.toString(current));
+        // Handle Click
+        dateField.setup();
+        dateField.setOnDropDown(() -> {
+            // Open Date Picker
+            MenuDatePicker.show(current, ((MenuActivity) view.getContext()).getSupportFragmentManager());
+        });
 
         // Set Meal
         boolean hasMeal = getResult() != null;
-        TextInputLayout meal = view.findViewById(R.id.menu_meal_field);
+        TextInputLayout mealField = view.findViewById(R.id.menu_meal_field);
-        meal.setEnabled(hasMeal);
+        MaterialAutoCompleteTextView meal = view.findViewById(R.id.menu_meal);
         if (hasMeal) {
-
+            // Enable/Disable Field
+            hasMeal = getResult().meals.size() > 0;
+            mealField.setEnabled(hasMeal);
+            if (hasMeal) {
+                // Set Dropdown Options
+                meal.setSimpleItems(getResult().meals.stream().map(x -> x.name).toArray(String[]::new));
+                // Set Selection
+                meal.setText(getResult().selectedMeal, false);
+                // Handle Meal Selection
+                meal.setOnItemClickListener((parent, view1, position, id) -> {
+                    // Get New Meal
+                    String newMeal = (String) parent.getAdapter().getItem(position);
+                    // Update UI
+                    int oldItemCount = getItemCount();
+                    getResult().selectedMeal = newMeal;
+                    reloadUI(oldItemCount);
+                });
+            } else {
+                // Show N/A
+                meal.setText(meal.getResources().getString(R.string.not_available), false);
+            }
+        } else {
+            // Disable Field
+            mealField.setEnabled(false);
+            // Show No Text
+            meal.setText("", false);
         }
     }
 }

app/src/main/java/com/thebrokenrail/mtudining/activity/menu/MenuData.java

@@ -7,12 +7,10 @@ class MenuData {
     public static class Meal {
         public static class Category {
             public static class Element {
-                public final String id;
                 public final String name;
                 public final String description;
 
-                public Element(String id, String name, String description) {
+                public Element(String name, String description) {
-                    this.id = id;
                     this.name = name;
                     this.description = description;
                 }
@@ -20,7 +18,7 @@ class MenuData {
 
             public final String name;
             public boolean isOpen = true;
-            public final List<Element> locations = new ArrayList<>();
+            public final List<Element> items = new ArrayList<>();
 
             public Category(String name) {
                 this.name = name;
@@ -38,5 +36,6 @@ class MenuData {
     }
 
     public final List<Meal> meals = new ArrayList<>();
-    public String selectedMeal;
+    // This may be changed at runtime.
+    public String selectedMeal = null;
 }

app/src/main/java/com/thebrokenrail/mtudining/activity/menu/MenuDatePicker.java

@@ -0,0 +1,86 @@
+package com.thebrokenrail.mtudining.activity.menu;
+
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+
+import com.google.android.material.datepicker.MaterialDatePicker;
+import com.thebrokenrail.mtudining.R;
+
+import java.util.Calendar;
+import java.util.Date;
+import java.util.TimeZone;
+
+/**
+ * Date picker for menu selection.
+ */
+public class MenuDatePicker {
+    private final static String TAG = "menu_date_picker";
+
+    /**
+     * Show date picker.
+     * @param current Currently selected date
+     * @param fragmentManager Support fragment manager
+     */
+    public static void show(Date current, FragmentManager fragmentManager) {
+        // Get Date In UTC
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTime(current);
+        Calendar utcCalendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+        copyDateFromCalender(calendar, utcCalendar);
+        // Build Picker
+        MaterialDatePicker<Long> datePicker = MaterialDatePicker.Builder.datePicker()
+            .setTitleText(R.string.select_date)
+            .setSelection(utcCalendar.getTimeInMillis())
+            .build();
+        // Show
+        datePicker.show(fragmentManager, TAG);
+        // Handle Selection
+        setupListeners(datePicker);
+    }
+
+    /**
+     * Setup event listeners on existing date picker.
+     * @param datePicker The date picker
+     */
+    private static void setupListeners(MaterialDatePicker<Long> datePicker) {
+        datePicker.addOnPositiveButtonClickListener(selection -> {
+            // Get Selection
+            if (selection != null) {
+                // Get New Date
+                Calendar calendar = Calendar.getInstance();
+                Calendar utcCalendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+                Date selectedDate = new Date(selection);
+                utcCalendar.setTime(selectedDate);
+                copyDateFromCalender(utcCalendar, calendar);
+                Date newDate = calendar.getTime();
+                // Get Activity
+                MenuActivity activity = (MenuActivity) datePicker.requireActivity();
+                // Update Date
+                activity.updateDate(newDate);
+            }
+        });
+    }
+
+    /**
+     * Setup event listeners on existing date picker.
+     * @param fragmentManager Support fragment manager
+     */
+    @SuppressWarnings({"unchecked"})
+    public static void setupListeners(FragmentManager fragmentManager) {
+        // Get Picker
+        Fragment fragment = fragmentManager.findFragmentByTag(TAG);
+        if (fragment != null) {
+            MaterialDatePicker<Long> datePicker = (MaterialDatePicker<Long>) fragment;
+            setupListeners(datePicker);
+        }
+    }
+
+    private static void copyDateFromCalender(Calendar src, Calendar dst) {
+        int year = src.get(Calendar.YEAR);
+        int month = src.get(Calendar.MONTH);
+        int day = src.get(Calendar.DAY_OF_MONTH);
+        dst.set(Calendar.YEAR, year);
+        dst.set(Calendar.MONTH, month);
+        dst.set(Calendar.DAY_OF_MONTH, day);
+    }
+}

app/src/main/java/com/thebrokenrail/mtudining/activity/menu/MenuTask.java

@@ -2,11 +2,16 @@ package com.thebrokenrail.mtudining.activity.menu;
 
 import com.thebrokenrail.mtudining.activity.task.Task;
 import com.thebrokenrail.mtudining.api.Connection;
+import com.thebrokenrail.mtudining.api.method.PeriodDetail;
 import com.thebrokenrail.mtudining.api.method.Periods;
 import com.thebrokenrail.mtudining.util.Constants;
 
+import java.util.Comparator;
 import java.util.Date;
 
+/**
+ * Task for loading menu information.
+ */
 public class MenuTask extends Task<MenuData> {
     private final Connection connection;
 
@@ -29,6 +34,14 @@ public class MenuTask extends Task<MenuData> {
         this.date = date;
     }
 
+    /**
+     * Check if task is setup.
+     * @return If the task is setup
+     */
+    boolean isSetup() {
+        return locationId != null;
+    }
+
     /**
      * Get date.
      * @return The date
@@ -43,10 +56,61 @@ public class MenuTask extends Task<MenuData> {
         Periods periods = new Periods(Constants.PLATFORM, locationId, date);
         connection.send(periods, periodsResponse -> {
             // Loaded Periods
+
+            // Sort Periods/Meals
+            periodsResponse.periods.sort(Comparator.comparingInt(a -> a.sort_order));
+
+            // Load Menu For Each Period
+            MenuData data = new MenuData();
+            int[] remaining = {periodsResponse.periods.size()};
+            if (remaining[0] > 0) {
+                // Start Loading Menus
                 for (Periods.Response.Period period : periodsResponse.periods) {
-                System.out.println("Period: " + period.name);
+                    // Load Period Details
+                    MenuData.Meal meal = new MenuData.Meal(period.id, period.name);
+                    PeriodDetail periodDetail = new PeriodDetail(Constants.PLATFORM, locationId, date, period.id);
+                    connection.send(periodDetail, periodDetailResponse -> {
+                        // Loaded Period Details
+
+                        // Sort Categories
+                        periodDetailResponse.menu.periods.categories.sort(Comparator.comparingInt(a -> a.sort_order));
+
+                        // Add Data
+                        for (PeriodDetail.Response.Menu.PeriodData.MenuCategory category : periodDetailResponse.menu.periods.categories) {
+                            MenuData.Meal.Category menuCategory = new MenuData.Meal.Category(category.name);
+
+                            // Sort Items
+                            category.items.sort(Comparator.comparingInt(a -> a.sort_order));
+
+                            // Add Items To Category
+                            for (PeriodDetail.Response.Menu.PeriodData.MenuCategory.MenuItem item : category.items) {
+                                menuCategory.items.add(new MenuData.Meal.Category.Element(item.name, item.desc));
                             }
+
+                            // Skip Empty Category
+                            if (menuCategory.items.size() > 0) {
+                                meal.categories.add(menuCategory);
+                            }
+                        }
+
+                        // Check If All Data Has Been Loaded
+                        remaining[0]--;
+                        if (remaining[0] == 0) {
+                            // All Data Loaded
+                            done(id, data);
+                        }
+                    }, () -> {
+                        // Error
                         done(id, null);
+                    });
+                    data.meals.add(meal);
+                }
+                // Set Selected Meal
+                data.selectedMeal = data.meals.get(0).name;
+            } else {
+                // No Periods To Load
+                done(id, data);
+            }
         }, () -> {
             // Error
             done(id, null);

app/src/main/java/com/thebrokenrail/mtudining/activity/task/Task.java

@@ -21,7 +21,7 @@ public abstract class Task<E> {
     /**
      * Last time when {@link #start()} was called.
      */
-    private long lastStart;
+    private Long lastStart = null;
 
     /**
      * Start task.
@@ -67,6 +67,8 @@ public abstract class Task<E> {
         }
         // Update Listeners
         sendDataToListeners();
+        // Ignore Future Responses From This API Call
+        lastStart = null;
     }
 
     /**

app/src/main/java/com/thebrokenrail/mtudining/activity/task/TaskAdapter.java

@@ -198,12 +198,15 @@ public abstract class TaskAdapter<E> extends RecyclerView.Adapter<RecyclerView.V
 
     /**
      * Reload UI.
+     * @param oldItemCount Amount of visible items before UI change
      */
-    private void reloadUI(int oldItemCount) {
+    protected void reloadUI(int oldItemCount) {
+        // Reload Header Without Animation
+        notifyItemChanged(0, new Object());
         // Remove Existing Items
-        notifyItemRangeRemoved(0, oldItemCount);
+        notifyItemRangeRemoved(1, oldItemCount - 1);
         // Add Items
-        notifyItemRangeInserted(0, getItemCount());
+        notifyItemRangeInserted(1, getItemCount() - 1);
     }
 
     /**

app/src/main/java/com/thebrokenrail/mtudining/api/method/PeriodDetail.java

@@ -0,0 +1,51 @@
+package com.thebrokenrail.mtudining.api.method;
+
+import com.thebrokenrail.mtudining.api.Method;
+import com.thebrokenrail.mtudining.util.DateUtil;
+
+import java.util.Date;
+import java.util.List;
+
+public class PeriodDetail implements Method<PeriodDetail.Response> {
+    private final int platform;
+    private final String locationId;
+    private final String date;
+    private final String period;
+
+    public PeriodDetail(int platform, String locationId, Date date, String period) {
+        this.platform = platform;
+        this.locationId = locationId;
+        this.date = DateUtil.toString(date);
+        this.period = period;
+    }
+
+    @Override
+    public String getPath() {
+        return "/location/" + locationId + "/periods/" + period + "?platform=" + platform + "&date=" + date;
+    }
+
+    @Override
+    public Class<Response> getResponseClass() {
+        return Response.class;
+    }
+
+    public static class Response {
+        public static class Menu {
+            public static class PeriodData {
+                public static class MenuCategory {
+                    public static class MenuItem {
+                        public String name;
+                        public String desc;
+                        public int sort_order;
+                    }
+                    public String name;
+                    public List<MenuItem> items;
+                    public int sort_order;
+                }
+                public List<MenuCategory> categories;
+            }
+            public PeriodData periods;
+        }
+        public Menu menu;
+    }
+}

app/src/main/java/com/thebrokenrail/mtudining/widget/CustomDropDownView.java

@@ -0,0 +1,64 @@
+package com.thebrokenrail.mtudining.widget;
+
+import static android.view.accessibility.AccessibilityEvent.TYPE_VIEW_CLICKED;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.accessibility.AccessibilityEvent;
+import android.widget.EditText;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.google.android.material.textfield.TextInputLayout;
+
+/**
+ * {@link TextInputLayout} with support for custom dropdown handling.
+ */
+public class CustomDropDownView extends TextInputLayout {
+    public CustomDropDownView(@NonNull Context context, @Nullable AttributeSet attributeSet) {
+        super(context, attributeSet);
+    }
+
+    /**
+     * Current handler.
+     */
+    private Runnable onDropDown = null;
+
+    /**
+     * Set new dropdown handler.
+     * @param onDropDown New handler
+     */
+    public void setOnDropDown(Runnable onDropDown) {
+        this.onDropDown = onDropDown;
+    }
+
+    @Override
+    public void onPopulateAccessibilityEvent(AccessibilityEvent event) {
+        super.onPopulateAccessibilityEvent(event);
+        // Run Callback
+        // https://github.com/material-components/material-components-android/blob/dd8f6bebdd45c2875fab6574376a604a7d40061a/lib/java/com/google/android/material/textfield/DropdownMenuEndIconDelegate.java#L249-L252
+        if (event.getEventType() == TYPE_VIEW_CLICKED && onDropDown != null) {
+            onDropDown.run();
+        }
+    }
+
+    /**
+     * Setup touch handler.
+     */
+    @SuppressLint("ClickableViewAccessibility")
+    public void setup() {
+        EditText editText = getEditText();
+        if (editText != null) {
+            // https://github.com/material-components/material-components-android/blob/dd8f6bebdd45c2875fab6574376a604a7d40061a/lib/java/com/google/android/material/textfield/DropdownMenuEndIconDelegate.java#L285-L291
+            editText.setOnTouchListener((v, event) -> {
+                if (event.getAction() == MotionEvent.ACTION_UP && onDropDown != null) {
+                    onDropDown.run();
+                }
+                return false;
+            });
+        }
+    }
+}

app/src/main/res/layout/menu_header.xml

@@ -6,7 +6,7 @@
     android:orientation="vertical">
 
     <!-- Date -->
-    <com.google.android.material.textfield.TextInputLayout
+    <com.thebrokenrail.mtudining.widget.CustomDropDownView
         android:id="@+id/menu_date_field"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
@@ -21,7 +21,7 @@
             android:layout_height="wrap_content"
             android:inputType="none" />
 
-    </com.google.android.material.textfield.TextInputLayout>
+    </com.thebrokenrail.mtudining.widget.CustomDropDownView>
 
     <!-- Meal -->
     <com.google.android.material.textfield.TextInputLayout

app/src/main/res/values/strings.xml

@@ -5,4 +5,6 @@
     <string name="load_error">Unable to load data!</string>
     <string name="date">Date</string>
     <string name="meal">Meal</string>
+    <string name="select_date">Select Date</string>
+    <string name="not_available">N/A</string>
 </resources>