Timetables can now be edited and deleted via sheet from SettingsFragment.kt

app/src/main/java/com/denizk0461/weserplaner/db/AppDAO.kt

@@ -87,6 +87,15 @@ interface AppDAO {
     @Query("SELECT * FROM timetables ORDER BY id")
     fun getTimetables(): LiveData<List<Timetable>>
 
+    @Query("SELECT * FROM timetables WHERE id = :id LIMIT 1")
+    fun getTimetableForId(id: Int): Timetable
+
+    @Update
+    fun updateTimetable(timetable: Timetable)
+
+    @Query("DELETE FROM timetables WHERE id = :id")
+    fun deleteTimetable(id: Int)
+
     /* --- event tasks --- */
 
     /**

app/src/main/java/com/denizk0461/weserplaner/db/AppRepository.kt

@@ -81,7 +81,7 @@ class AppRepository(app: Application) {
     fun getEventsForDay(day: Int): LiveData<List<StudIPEvent>> = dao.getEventsForDay(day)
 
     fun getEventsForDayAndTimetable(day: Int, timetable: Int): LiveData<List<StudIPEvent>> =
-        dao.getEventsForDayAndTimetable(day, timetable + 1) // I'm not sure why I need +1 here but it works
+        dao.getEventsForDayAndTimetable(day, timetable)
 
     /**
      * Inserts a list of Stud.IP events into the database.
@@ -166,10 +166,16 @@ class AppRepository(app: Application) {
         dao.insertTimetable(timetable)
     }
 
+    fun updateTimetable(timetable: Timetable) { dao.updateTimetable(timetable) }
+
     fun getLargestTimetableId(): Int = dao.getLargestTimetableId() ?: 0
 
     fun getTimetables(): LiveData<List<Timetable>> = dao.getTimetables()
 
+    fun getTimetableForId(id: Int): Timetable = dao.getTimetableForId(id)
+
+    fun deleteTimetable(id: Int) { dao.deleteTimetable(id) }
+
     /**
      * Retrieves all canteen offer date objects.
      *

app/src/main/java/com/denizk0461/weserplaner/fragment/SettingsFragment.kt

@@ -20,11 +20,14 @@ import com.denizk0461.weserplaner.activity.FetcherActivity
 import com.denizk0461.weserplaner.activity.ImageActivity
 import com.denizk0461.weserplaner.adapter.DropdownAdapter
 import com.denizk0461.weserplaner.data.getTextSheet
+import com.denizk0461.weserplaner.data.showErrorSnackBar
 import com.denizk0461.weserplaner.data.showSnackBar
 import com.denizk0461.weserplaner.data.showToast
 import com.denizk0461.weserplaner.databinding.FragmentSettingsBinding
 import com.denizk0461.weserplaner.model.FormattedDate
+import com.denizk0461.weserplaner.model.Timetable
 import com.denizk0461.weserplaner.sheet.AllergenConfigSheet
+import com.denizk0461.weserplaner.sheet.TimetableEditSheet
 import com.denizk0461.weserplaner.values.AppLayout
 import com.denizk0461.weserplaner.viewmodel.SettingsViewModel
 import java.nio.charset.StandardCharsets
@@ -52,6 +55,8 @@ class SettingsFragment : AppFragment<FragmentSettingsBinding>() {
 
     private lateinit var timetableAdapter: DropdownAdapter
 
+    private var savedTimetables: List<Timetable> = listOf()
+
     // Instantiate the view binding
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
         _binding = FragmentSettingsBinding.inflate(inflater, container, false)
@@ -92,18 +97,36 @@ class SettingsFragment : AppFragment<FragmentSettingsBinding>() {
             timetableAdapter.addAll(timetables.map { it.name })
             if (timetables.isNotEmpty()) {
                 binding.autoCompleteTimetable.setText(
-                    timetableAdapter.getItem(viewModel.getSelectedTimetable()).toString(),
+                    timetableAdapter.getItem(timetables.map { it.id }.indexOf(viewModel.getSelectedTimetable())).toString(),//viewModel.getSelectedTimetable()).toString(),
                     false,
                 )
+            } else {
+                binding.autoCompleteTimetable.setText("")
             }
+            savedTimetables = timetables
         }
 
         binding.autoCompleteTimetable.setAdapter(timetableAdapter)
         binding.autoCompleteTimetable.setOnItemClickListener { _, _, position, _ ->
-            viewModel.setSelectedTimetable(position)
+            viewModel.setSelectedTimetable(savedTimetables[position].id)
             binding.autoCompleteTimetable.setText(timetableAdapter.getItem(position), false)
         }
 
+        binding.buttonEditTimetable.setOnClickListener {
+            if (binding.autoCompleteTimetable.text.isBlank()) {
+                context.theme.showErrorSnackBar(
+                    binding.coordinatorLayout,
+                    getString(R.string.settings_timetable_edit_fail),
+                )
+            } else {
+                openBottomSheet(TimetableEditSheet().also { sheet ->
+                    val bundle = Bundle()
+                    bundle.putInt("timetableId", viewModel.getSelectedTimetable())
+                    sheet.arguments = bundle
+                })
+            }
+        }
+
         // Set up switch for highlighting the next course in the schedule
         binding.switchCurrentDay.apply {
             isChecked = viewModel.preferenceCurrentDay

app/src/main/java/com/denizk0461/weserplaner/sheet/TimetableEditSheet.kt

@@ -0,0 +1,90 @@
+package com.denizk0461.weserplaner.sheet
+
+import android.os.Bundle
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.viewModels
+import androidx.navigation.fragment.NavHostFragment
+import androidx.transition.TransitionManager
+import com.denizk0461.weserplaner.R
+import com.denizk0461.weserplaner.data.viewBinding
+import com.denizk0461.weserplaner.databinding.SheetTimetableEditBinding
+import com.denizk0461.weserplaner.fragment.SettingsFragment
+import com.denizk0461.weserplaner.model.Timetable
+import com.denizk0461.weserplaner.viewmodel.SheetTimetableEditViewModel
+import java.io.IOException
+
+class TimetableEditSheet : AppSheet(R.layout.sheet_timetable_edit) {
+
+    // View binding
+    private val binding: SheetTimetableEditBinding by viewBinding(SheetTimetableEditBinding::bind)
+
+    // View model
+    private val viewModel: SheetTimetableEditViewModel by viewModels()
+
+    private var hasClickedDelete = false
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        // Set up FAB behaviour for parent fragment's FAB if activity is not null
+        val parentFragment = activity?.let { activity ->
+            // Retrieve parent fragment to access its functions
+            val navHostFragment = activity
+                .supportFragmentManager
+                .fragments[0] as NavHostFragment
+            navHostFragment
+                .childFragmentManager
+                .primaryNavigationFragment as SettingsFragment
+        }
+
+        // Retrieve event from arguments
+        val timetableId = arguments?.getInt("timetableId") ?: throw IOException("asdf wtf?") // TODO better error handling
+
+        val timetable = viewModel.getTimetableForId(timetableId)
+
+        binding.editTextTitle.setText(timetable.name)
+
+        binding.buttonCancel.setOnClickListener {
+            dismiss()
+        }
+
+        binding.buttonDelete.setOnClickListener {
+            /*
+             * Check if the user has already clicked the button before; this is done to prevent
+             * accidentally deleting an event.
+             */
+            if (hasClickedDelete) {
+                viewModel.setSelectedTimetable(viewModel.getLargestTimetableId())
+
+                viewModel.deleteTimetable(timetableId)
+
+                // Tell the user that the event has been deleted
+                parentFragment?.showSnackBar(
+                    getString(R.string.settings_timetable_sheet_confirm_delete)
+                )
+
+                // Dismiss the sheet upon deletion
+                dismiss()
+            } else {
+                // Update the text to show the user that they clicked the button once
+                TransitionManager
+                    .beginDelayedTransition(binding.buttonContainer as ViewGroup)
+                binding.buttonDelete.text =
+                    getString(R.string.settings_timetable_sheet_delete_confirm)
+                hasClickedDelete = true
+            }
+        }
+
+        binding.buttonSave.setOnClickListener {
+            viewModel.updateTimetable(Timetable(timetableId, binding.editTextTitle.text.toString().trim()))
+
+            // Tell the user that the event has been updated
+            parentFragment?.showSnackBar(
+                getString(R.string.settings_timetable_sheet_confirm_save)
+            )
+
+            dismiss()
+        }
+    }
+}

app/src/main/java/com/denizk0461/weserplaner/viewmodel/SheetTimetableEditViewModel.kt

@@ -0,0 +1,17 @@
+package com.denizk0461.weserplaner.viewmodel
+
+import android.app.Application
+import com.denizk0461.weserplaner.model.Timetable
+
+class SheetTimetableEditViewModel(application: Application) : AppViewModel(application) {
+
+    fun getTimetableForId(id: Int) = returnBlocking { repo.getTimetableForId(id) }
+
+    fun updateTimetable(timetable: Timetable) { doAsync { repo.updateTimetable(timetable) } }
+
+    fun deleteTimetable(id: Int) = doAsync { repo.deleteTimetable(id) }
+
+    fun setSelectedTimetable(newValue: Int) = repo.setPreferenceSelectedTimetable(newValue)
+
+    fun getLargestTimetableId(): Int = returnBlocking { repo.getLargestTimetableId() }
+}

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

@@ -90,6 +90,7 @@ xmlns:app="http://schemas.android.com/apk/res-auto"
         android:layout_marginBottom="24dp"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintBottom_toBottomOf="parent"/>
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:strokeColor="?attr/colorOutlineVariant"/>
 
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -133,7 +133,6 @@
                     <androidx.appcompat.widget.LinearLayoutCompat
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
-                        android:layout_marginEnd="8dp"
                         android:orientation="vertical"
                         android:paddingHorizontal="16dp"
                         android:paddingVertical="8dp">
@@ -145,23 +144,45 @@
                             android:text="@string/settings_selected_timetable_header"
                             android:textSize="16sp" />
 
-                        <com.google.android.material.textfield.TextInputLayout
-                            android:id="@+id/text_layout_timetable"
-                            style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.ExposedDropdownMenu"
+                        <androidx.appcompat.widget.LinearLayoutCompat
                             android:layout_width="match_parent"
                             android:layout_height="wrap_content"
-                            android:hint="@string/settings_selected_timetable_hint"
-                            app:boxStrokeColor="@color/selector_text_input"
-                            app:hintTextColor="@color/selector_text_input">
+                            android:orientation="horizontal">
 
-                            <com.google.android.material.textfield.MaterialAutoCompleteTextView
-                                android:id="@+id/auto_complete_timetable"
-                                android:layout_width="match_parent"
+                            <com.google.android.material.textfield.TextInputLayout
+                                android:id="@+id/text_layout_timetable"
+                                style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.ExposedDropdownMenu"
+                                android:layout_width="0dp"
                                 android:layout_height="wrap_content"
-                                android:textColor="?attr/colorOnSurfaceVariant"
-                                android:inputType="none"/>
+                                android:layout_weight="1"
+                                android:layout_marginEnd="8dp"
+                                android:hint="@string/settings_selected_timetable_hint"
+                                app:boxStrokeColor="@color/selector_text_input"
+                                app:hintTextColor="@color/selector_text_input">
 
-                        </com.google.android.material.textfield.TextInputLayout>
+                                <com.google.android.material.textfield.MaterialAutoCompleteTextView
+                                    android:id="@+id/auto_complete_timetable"
+                                    android:layout_width="match_parent"
+                                    android:layout_height="wrap_content"
+                                    android:textColor="?attr/colorOnSurfaceVariant"
+                                    android:inputType="none"/>
+
+                            </com.google.android.material.textfield.TextInputLayout>
+
+                            <com.google.android.material.button.MaterialButton
+                                style="@style/Widget.Material3.Button.IconButton.Outlined"
+                                android:id="@+id/button_edit_timetable"
+                                android:layout_width="wrap_content"
+                                android:layout_height="wrap_content"
+                                android:minWidth="0dp"
+                                app:icon="@drawable/edit"
+                                app:iconPadding="0dp"
+                                app:strokeColor="?attr/colorOutlineVariant"
+                                app:iconTint="?attr/colorOnSurfaceVariant"
+                                tools:ignore="UnusedAttribute"
+                                android:tooltipText="@string/settings_selected_timetable_edit_button_hint"/>
+
+                        </androidx.appcompat.widget.LinearLayoutCompat>
 
                     </androidx.appcompat.widget.LinearLayoutCompat>
 

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

@@ -0,0 +1,111 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/sheet"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <com.google.android.material.bottomsheet.BottomSheetDragHandleView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"/>
+
+        <com.google.android.material.button.MaterialButton
+            style="@style/SheetCloseButton"
+            android:id="@+id/button_cancel"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="16dp"
+            android:layout_marginTop="16dp"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+    <androidx.appcompat.widget.AppCompatTextView
+        android:id="@+id/sheet_title"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textSize="22sp"
+        android:paddingHorizontal="24dp"
+        android:layout_marginBottom="8dp"
+        app:fontFamily="@font/lato_blackitalic"
+        android:text="@string/settings_timetable_sheet_header"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toStartOf="@id/button_cancel"/>
+
+    <androidx.core.widget.NestedScrollView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:scrollbars="vertical">
+
+        <androidx.appcompat.widget.LinearLayoutCompat
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            android:paddingBottom="16dp"
+            android:paddingHorizontal="24dp">
+
+            <com.google.android.material.textfield.TextInputLayout
+                style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
+                android:id="@+id/text_layout_title"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="4dp"
+                android:hint="@string/settings_selected_timetable_hint"
+                app:boxStrokeColor="@color/selector_text_input"
+                app:hintTextColor="@color/selector_text_input">
+
+                <com.google.android.material.textfield.TextInputEditText
+                    style="@style/ThemeOverlay.Material3.TextInputEditText.OutlinedBox"
+                    android:textColor="?attr/colorOnSurfaceVariant"
+                    android:id="@+id/edit_text_title"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"/>
+
+            </com.google.android.material.textfield.TextInputLayout>
+
+            <androidx.appcompat.widget.LinearLayoutCompat
+                android:id="@+id/button_container"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal"
+                android:gravity="end"
+                android:layout_marginVertical="8dp"
+                android:animateLayoutChanges="true">
+
+                <com.google.android.material.button.MaterialButton
+                    android:id="@+id/button_delete"
+                    style="@style/Widget.Material3.Button.OutlinedButton"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginEnd="8dp"
+                    android:text="@string/delete"
+                    app:icon="@drawable/delete"
+                    app:strokeColor="?attr/colorOutlineVariant"/>
+
+                <com.google.android.material.button.MaterialButton
+                    android:id="@+id/button_save"
+                    style="@style/Widget.Material3.Button.TonalButton"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="@string/save"
+                    app:icon="@drawable/save"/>
+
+            </androidx.appcompat.widget.LinearLayoutCompat>
+
+        </androidx.appcompat.widget.LinearLayoutCompat>
+
+    </androidx.core.widget.NestedScrollView>
+
+</androidx.appcompat.widget.LinearLayoutCompat>

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

@@ -248,6 +248,12 @@
 
     <string name="settings_selected_timetable_header">Wähle, welchen Stundenplan einzusehen</string>
     <string name="settings_selected_timetable_hint">Stundenplan</string>
+    <string name="settings_selected_timetable_edit_button_hint">Stundenplan bearbeiten</string>
+    <string name="settings_timetable_sheet_header">Diesen Stundenplan bearbeiten</string>
+    <string name="settings_timetable_edit_fail">Es gibt keinen Stundenplan zum bearbeiten!</string>
+    <string name="settings_timetable_sheet_confirm_save">Stundenplan wurde aktualisiert.</string>
+    <string name="settings_timetable_sheet_confirm_delete">Stundenplan wurde gelöscht.</string>
+    <string name="settings_timetable_sheet_delete_confirm">Sicher?</string>
 
     <string name="settings_current_day_title">Starte Stundenplan am heutigen Tag</string>
     <string name="settings_current_day_subtitle">Ansonsten wird Montag beim Start angezeigt</string>

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

@@ -253,6 +253,12 @@
 
     <string name="settings_selected_timetable_header">Select which timetable to display</string>
     <string name="settings_selected_timetable_hint">Timetable</string>
+    <string name="settings_selected_timetable_edit_button_hint">Edit timetable</string>
+    <string name="settings_timetable_sheet_header">Edit this timetable</string>
+    <string name="settings_timetable_edit_fail">There is no timetable to edit!</string>
+    <string name="settings_timetable_sheet_confirm_save">Timetable has been updated.</string>
+    <string name="settings_timetable_sheet_confirm_delete">Timetable has been deleted.</string>
+    <string name="settings_timetable_sheet_delete_confirm">Sure?</string>
 
     <string name="settings_current_day_title">Launch timetable on current day</string>
     <string name="settings_current_day_subtitle">If unselected, Monday will be shown on launch instead</string>