feat: Add settings activity

app/src/main/java/com/p_vacho/neat_calendar/GlobalExceptionHandler.kt

@@ -3,8 +3,10 @@ package com.p_vacho.neat_calendar
 import android.content.Context
 import android.content.Intent
 import android.util.Log
+import com.google.gson.Gson
 import com.p_vacho.neat_calendar.activities.ApiUnreachableActivity
 import com.p_vacho.neat_calendar.activities.LoginActivity
+import com.p_vacho.neat_calendar.api.models.ValidationError
 import com.p_vacho.neat_calendar.util.ExceptionSerializer
 import com.p_vacho.neat_calendar.util.SerializedException
 import retrofit2.HttpException
@@ -43,6 +45,19 @@ class GlobalExceptionHandler(
             return
         }
 
+        if (e.code() == 422) {
+            Log.e("GlobalExceptionHandler", "Caught HTTP 422 Exception")
+            val errorBody = e.response()?.errorBody()?.string()
+            val validationError = Gson().fromJson(errorBody, ValidationError::class.java)
+            Log.e("GlobalExceptionHandler", "Details: $validationError")
+
+            // This exception is still unhandled, the above just logs it in a nicer way
+            // so we can see what exactly went wrong. We still want to propagate the exception
+            // up to default handler now.
+            defaultHandler?.uncaughtException(t, e)
+            return
+        }
+
         Log.e("GlobalExceptionHandler", "Propgating unhandled exception", e)
         defaultHandler?.uncaughtException(t, e)
         return

app/src/main/java/com/p_vacho/neat_calendar/activities/SettingsActivity.kt

@@ -1,13 +1,40 @@
 package com.p_vacho.neat_calendar.activities
 
+import android.content.Intent
 import android.os.Bundle
+import android.widget.Toast
 import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
+import androidx.lifecycle.lifecycleScope
+import com.google.android.material.button.MaterialButton
+import com.google.android.material.textfield.TextInputEditText
+import com.p_vacho.neat_calendar.MyApplication
 import com.p_vacho.neat_calendar.R
+import com.p_vacho.neat_calendar.api.RetrofitClient
+import com.p_vacho.neat_calendar.api.models.PartialUserRequest
+import com.p_vacho.neat_calendar.api.models.UserResponse
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import retrofit2.HttpException
 
 class SettingsActivity : AppCompatActivity() {
+    private lateinit var etBaseUrl: TextInputEditText
+    private lateinit var etUsername: TextInputEditText
+    private lateinit var etEmail: TextInputEditText
+    private lateinit var etNewPassword: TextInputEditText
+    private lateinit var btnLogout: MaterialButton
+    private lateinit var btnDeleteAccount: MaterialButton
+    private lateinit var btnSave: MaterialButton
+    private lateinit var btnBack: MaterialButton
+
+    private lateinit var user: UserResponse
+    private lateinit var oldBaseUrl: String
+    private lateinit var oldUsername: String
+    private lateinit var oldEmail: String
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         enableEdgeToEdge()
@@ -17,5 +44,114 @@ class SettingsActivity : AppCompatActivity() {
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
             insets
         }
+
+        etBaseUrl = findViewById(R.id.etBaseUrl)
+        etUsername = findViewById(R.id.etUsername)
+        etEmail = findViewById(R.id.etEmail)
+        etNewPassword = findViewById(R.id.etNewPassword)
+        btnLogout = findViewById(R.id.btnLogout)
+        btnDeleteAccount = findViewById(R.id.btnDeleteAccount)
+        btnSave = findViewById(R.id.btnSave)
+        btnBack = findViewById(R.id.btnBack)
+
+        oldBaseUrl = RetrofitClient.getCurrentBaseUrl()
+        etBaseUrl.setText(oldBaseUrl)
+
+        lifecycleScope.launch {
+            user = withContext(Dispatchers.IO) {
+                RetrofitClient.usersService.getCurrentUser()
+            }
+
+            oldEmail = user.email
+            etEmail.setText(oldEmail)
+
+            oldUsername = user.username
+            etUsername.setText(oldUsername)
+        }
+
+        btnBack.setOnClickListener { finish() }
+        btnSave.setOnClickListener { onSave() }
+        btnLogout.setOnClickListener { onLogout() }
+        btnDeleteAccount.setOnClickListener { onDeleteAccount() }
+    }
+
+    private fun onSave() {
+        var changed = false
+
+        val newBaseUrl = etBaseUrl.text.toString()
+        if (newBaseUrl != oldBaseUrl) {
+            RetrofitClient.updateBaseUrl(newBaseUrl)
+            oldBaseUrl = newBaseUrl
+            changed = true
+        }
+
+        val newUsername = etUsername.text.toString()
+        val newEmail = etEmail.text.toString()
+        val newPassword = etNewPassword.text.toString()
+
+        lifecycleScope.launch() {
+            val req = PartialUserRequest(
+                username = if (newUsername != oldUsername) newUsername else null,
+                email = if (newEmail != oldEmail) newEmail else null,
+                password = if (newPassword.isNotEmpty()) newPassword else null,
+            )
+
+            if (req.username != null || req.email != null || req.password != null) {
+                try {
+                    val response = withContext(Dispatchers.IO) {
+                        RetrofitClient.usersService.updateUser(user.user_id, req)
+                    }
+
+                    oldUsername = response.username
+                    oldEmail = response.email
+                    etNewPassword.setText("")
+                    changed = true
+                } catch (e: HttpException) {
+                    if (e.code() != 409) {
+                        throw e
+                    }
+
+                    Toast.makeText(this@SettingsActivity, "This username or email is already taken", Toast.LENGTH_SHORT).show()
+                }
+            }
+
+            if (changed) {
+                Toast.makeText(this@SettingsActivity, "Changes saved", Toast.LENGTH_SHORT).show()
+                // Make a ping request, to re-check api connectivity
+                // TODO: Ping isn't a good enough check here, we should also validate tokens
+                withContext(Dispatchers.IO) {
+                    RetrofitClient.ping()
+                }
+            } else {
+                Toast.makeText(this@SettingsActivity, "No changes made", Toast.LENGTH_SHORT).show()
+            }
+        }
+    }
+
+    private fun onLogout() {
+        lifecycleScope.launch(Dispatchers.IO) {
+            (application as MyApplication).authRepository.logout()
+            navigateToLoginActivity()
+        }
+    }
+
+
+    private fun onDeleteAccount() {
+        // TODO: Add a modal asking for confirmation
+        lifecycleScope.launch {
+            withContext(Dispatchers.IO) {
+                RetrofitClient.usersService.deleteUser(user.user_id)
+            }
+
+            (application as MyApplication).tokenManager.clearTokens()
+            navigateToLoginActivity()
+        }
+    }
+
+    private fun navigateToLoginActivity() {
+        val intent = Intent(this, LoginActivity::class.java)
+        intent.flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_NEW_TASK
+        startActivity(intent)
+        finish()
     }
 }

app/src/main/java/com/p_vacho/neat_calendar/api/models/UserModels.kt

@@ -7,4 +7,10 @@ data class UserResponse(
     val username: String,
     val email: String,
     val created_at: OffsetDateTime,
+)
+
+data class PartialUserRequest(
+    val username: String?,
+    val password: String?,
+    val email: String?,
 )

app/src/main/java/com/p_vacho/neat_calendar/api/services/UsersService.kt

@@ -1,13 +1,26 @@
 package com.p_vacho.neat_calendar.api.services
 
+import com.p_vacho.neat_calendar.api.models.PartialUserRequest
 import com.p_vacho.neat_calendar.api.models.UserResponse
+import retrofit2.http.Body
+import retrofit2.http.DELETE
 import retrofit2.http.GET
+import retrofit2.http.PATCH
 import retrofit2.http.Path
 
 interface UsersService {
     @GET("users")
     suspend fun getUsers(): List<UserResponse>
 
+    @GET("users/me")
+    suspend fun getCurrentUser(): UserResponse
+
     @GET("users/{user_id}")
     suspend fun getUser(@Path("user_id") userId: String): UserResponse
+
+    @DELETE("users/{user_id}")
+    suspend fun deleteUser(@Path("user_id") userId: String): Unit
+
+    @PATCH("users/{user_id}")
+    suspend fun updateUser(@Path("user_id") userId: String, @Body userData: PartialUserRequest): UserResponse
 }

app/src/main/res/drawable/ic_warning.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:pathData="m40,840 l440,-760 440,760L40,840ZM178,760h604L480,240 178,760ZM480,720q17,0 28.5,-11.5T520,680q0,-17 -11.5,-28.5T480,640q-17,0 -28.5,11.5T440,680q0,17 11.5,28.5T480,720ZM440,600h80v-200h-80v200ZM480,500Z"
+      android:fillColor="#e8eaed"/>
+</vector>

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

@@ -1,10 +1,193 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<ScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/main"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".activities.SettingsActivity">
+    android:fillViewport="true"
+    android:padding="16dp">
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+    <LinearLayout
+        android:layout_marginTop="16dp"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <!-- A single card containing all settings sections -->
+        <com.google.android.material.card.MaterialCardView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            app:cardCornerRadius="8dp"
+            app:cardElevation="4dp"
+            android:layout_marginBottom="16dp">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:padding="16dp">
+
+                <!-- ============= Section 1: Connection ============= -->
+                <TextView
+                    android:id="@+id/tvConnectionSectionHeader"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="@string/connection_settings_section"
+                    android:textAppearance="@style/TextAppearance.MaterialComponents.Headline6"
+                    android:paddingTop="4dp"
+                    android:paddingBottom="4dp" />
+
+                <!-- Divider for the 'Connection' section -->
+                <com.google.android.material.divider.MaterialDivider
+                    android:layout_width="match_parent"
+                    android:layout_height="1dp"
+                    android:layout_marginBottom="8dp"
+                    app:dividerColor="@android:color/darker_gray" />
+
+                <!-- Base URL field -->
+                <com.google.android.material.textfield.TextInputLayout
+                    android:id="@+id/tilBaseUrl"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:hint="@string/base_url"
+                    app:boxStrokeWidth="1dp"
+                    app:boxStrokeColor="?attr/colorPrimary">
+
+                    <com.google.android.material.textfield.TextInputEditText
+                        android:id="@+id/etBaseUrl"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content" />
+                </com.google.android.material.textfield.TextInputLayout>
+
+
+                <!-- ========== Section 2: User Management ========== -->
+                <TextView
+                    android:id="@+id/tvUserManagementHeader"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="@string/user_settings_section"
+                    android:textAppearance="@style/TextAppearance.MaterialComponents.Headline6"
+                    android:layout_marginTop="16dp"
+                    android:paddingTop="4dp"
+                    android:paddingBottom="4dp" />
+
+                <!-- Divider for the 'User Management' section -->
+                <com.google.android.material.divider.MaterialDivider
+                    android:layout_width="match_parent"
+                    android:layout_height="1dp"
+                    android:layout_marginBottom="8dp"
+                    app:dividerColor="@android:color/darker_gray" />
+
+                <!-- Username field -->
+                <com.google.android.material.textfield.TextInputLayout
+                    android:id="@+id/tilUsername"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:hint="@string/username"
+                    app:boxStrokeWidth="1dp"
+                    app:boxStrokeColor="?attr/colorPrimary"
+                    android:layout_marginTop="4dp">
+
+                    <com.google.android.material.textfield.TextInputEditText
+                        android:id="@+id/etUsername"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content" />
+                </com.google.android.material.textfield.TextInputLayout>
+
+                <!-- Email field -->
+                <com.google.android.material.textfield.TextInputLayout
+                    android:id="@+id/tilEmail"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:hint="@string/email"
+                    app:boxStrokeWidth="1dp"
+                    app:boxStrokeColor="?attr/colorPrimary"
+                    android:layout_marginTop="4dp">
+
+                    <com.google.android.material.textfield.TextInputEditText
+                        android:id="@+id/etEmail"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:inputType="textEmailAddress" />
+                </com.google.android.material.textfield.TextInputLayout>
+
+                <!-- Password field (for changing password) -->
+                <com.google.android.material.textfield.TextInputLayout
+                    android:id="@+id/tilPassword"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:hint="@string/new_password"
+                    app:boxStrokeWidth="1dp"
+                    app:boxStrokeColor="?attr/colorPrimary"
+                    android:layout_marginTop="4dp">
+
+                    <com.google.android.material.textfield.TextInputEditText
+                        android:id="@+id/etNewPassword"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:inputType="textPassword" />
+                </com.google.android.material.textfield.TextInputLayout>
+
+                    <!-- Logout Button -->
+                    <com.google.android.material.button.MaterialButton
+                        android:id="@+id/btnLogout"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="5dp"
+                        android:text="@string/logout"
+                        app:icon="@drawable/ic_exit"
+                        app:iconGravity="textStart"
+                        app:iconPadding="8dp"
+                        style="@style/Widget.MaterialComponents.Button.OutlinedButton" />
+
+                <!-- Account Deletion Button -->
+                <com.google.android.material.button.MaterialButton
+                    android:id="@+id/btnDeleteAccount"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="@string/delete_account"
+                    android:textColor="?android:attr/textColorPrimary"
+                    android:layout_marginTop="16dp"
+                    app:icon="@drawable/ic_warning"
+                    app:iconGravity="textStart"
+                    app:iconPadding="8dp"
+                    app:iconTint="@android:color/holo_red_dark"
+                    app:strokeColor="@android:color/holo_red_dark"
+                    app:strokeWidth="2dp"
+                    style="@style/Widget.MaterialComponents.Button.OutlinedButton" />
+
+                <!-- ========== Section 3: Controls ========== -->
+                <com.google.android.material.divider.MaterialDivider
+                    android:layout_width="match_parent"
+                    android:layout_height="1dp"
+                    android:layout_marginBottom="16dp"
+                    android:layout_marginTop="8dp"
+                    app:dividerColor="@android:color/darker_gray" />
+
+                <!-- Save Settings Button -->
+                <com.google.android.material.button.MaterialButton
+                    android:id="@+id/btnSave"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="@string/save"
+                    app:cornerRadius="8dp" />
+
+                <!-- Go back Button -->
+                <com.google.android.material.button.MaterialButton
+                    android:id="@+id/btnBack"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="5dp"
+                    android:text="@string/back"
+                    app:icon="@drawable/ic_arrow_back"
+                    app:iconGravity="textStart"
+                    app:iconPadding="8dp"
+                    style="@style/Widget.MaterialComponents.Button.OutlinedButton" />
+
+            </LinearLayout>
+        </com.google.android.material.card.MaterialCardView>
+
+    </LinearLayout>
+</ScrollView>

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

@@ -32,7 +32,7 @@
     <string name="delete_event">Delete this event</string>
     <string name="edit_event">Edit this event</string>
     <string name="add_event">Add a new event</string>
-    <string name="back">Go to the previous page</string>
+    <string name="back">Go back</string>
     <string name="event_title">Event Title</string>
     <string name="event_description">Event Description</string>
     <string name="instant_event">Instant Event</string>
@@ -47,4 +47,10 @@
     <string name="leave_invited_event">Leave invited event</string>
     <string name="open_app_settings">Open Settings</string>
     <string name="open_notifications">Open Notifications</string>
+    <string name="connection_settings_section">Connection</string>
+    <string name="user_settings_section">User Settings</string>
+    <string name="new_password">New Password</string>
+    <string name="delete_account">Delete Account</string>
+    <string name="controls">Controls</string>
+    <string name="logout">Log out</string>
 </resources>