feat: Add category details activity

app/src/main/AndroidManifest.xml

@@ -16,6 +16,9 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.NeatCalendar"
         tools:targetApi="31">
+        <activity
+            android:name=".activities.EventDetailsActivity"
+            android:exported="false" />
         <activity
             android:name=".activities.CreateCategoryActivity"
             android:exported="false" />

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

@@ -0,0 +1,27 @@
+package com.p_vacho.neat_calendar.activities
+
+import android.os.Bundle
+import androidx.activity.enableEdgeToEdge
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import com.p_vacho.neat_calendar.R
+import com.p_vacho.neat_calendar.api.models.EventResponse
+
+class EventDetailsActivity : AppCompatActivity() {
+    private lateinit var event: EventResponse
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContentView(R.layout.activity_event_details)
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
+
+        @Suppress("DEPRECATION")
+        event = intent.getParcelableExtra<EventResponse>("event")!!
+    }
+}

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

@@ -1,5 +1,6 @@
 package com.p_vacho.neat_calendar.activities
 
+import android.content.Intent
 import android.os.Bundle
 import android.util.Log
 import android.view.View
@@ -283,12 +284,28 @@ class NotificationsActivity : AppCompatActivity() {
                 }
             }
             NotificationAdapter.Action.VIEW_EVENT -> {
-                // TODO: Handle viewing the event
+                val invitation = invitations[notification.data]!!
+                val event = events[invitation.event_id]!!
+
+                navigateToEventDetails(event)
+
+                // Also mark the notification as read after the interaction
                 if (!notification.read) handleNotificationClick(notification, position, false)
             }
         }
     }
 
+    /**
+     * Navigate to the event details activity, passing it over the event data to show.
+     *
+     * This is used to allow user to preview the event they were invited to.
+     */
+    private fun navigateToEventDetails(event: EventResponse) {
+        val intent = Intent(this, EventDetailsActivity::class.java)
+        intent.putExtra("event", event)
+        startActivity(intent)
+    }
+
     /**
      * A callback function passed to the Notification Adapter, triggered by clicking on the notification
      * itself. This should mark the notification as read.

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

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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.EventDetailsActivity">
+
+</androidx.constraintlayout.widget.ConstraintLayout>