Functionality for scheduling a fav notification

Author: peterkos

BrickHack-Mobile/AlertMessage.swift

@@ -124,4 +124,11 @@ class MessageHandler {
                          body: "Please try again later, by restarting the app.",
                          type: .error)
     }
+
+    static func showNotificationRegisterError(withEventTitle title: String) {
+        print("ERROR: Unable to register notification for event \(title)")
+        showAlertMessage(withTitle: "Unable to register a notification!",
+                         body: "Please try again later.",
+                         type: .error)
+    }
 }

BrickHack-Mobile/Controllers/ScheduleTableViewController.swift

@@ -89,19 +89,14 @@ class ScheduleTableViewController: UITableViewController {
     override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
 
         let cell = tableView.dequeueReusableCell(withIdentifier: "TimelineTableViewCell", for: indexPath) as! TimelineTableViewCell
-
-        // Grab from our custom config
-        // Description unused for now
-//        let (timelinePoint, allColor, title, description, isFavorite, date)
-
         let currentTimelineEvent = timelineEvents[convertIndex(fromIndexPath: indexPath)]
 
         /*
         Overview of how cells are drawn
 
                        ----------------
          backColor     |
-         tPoint.color  o 12:30 (bold)
+         tPoint.color  o Title (bold)
                        |
          frontColor    | Description
                        |
@@ -214,21 +209,59 @@ class ScheduleTableViewController: UITableViewController {
         }
 
         // Update view
-        // (FavoriteButton subclass handles this condition)
+        // (FavoriteButton subclass handles updating this condition)
         favButton.isSelected = !favButton.isSelected
 
-        // Update model
-        // (We handle this condition!)
+        // Now, prep the model:
+
+        // Get the event at this position
         let indexPath = IndexPath(row: favButton.row!, section: favButton.section!)
         let selectedEvent = timelineEvents[convertIndex(fromIndexPath: indexPath)]
+
+        // Update model
         selectedEvent.isFavorite = !selectedEvent.isFavorite
-        print("user toggled \(selectedEvent.event.title)")
+
+        // Manage the list of events
+        if selectedEvent.isFavorite {
+            scheduleFavoriteNotification(forEvent: selectedEvent)
+            print("Scheduled notification for \(selectedEvent.event.title)")
+        } else {
+            unscheduleFavoriteNotification(forEvent: selectedEvent)
+            print("Unscheduled notification for \(selectedEvent.event.title)")
+        }
 
         // @TODO: Handle updating favorite with server
-        // @TODO: Handle notifying users on their favorited events
     }
 
+    private func scheduleFavoriteNotification(forEvent timelineEvent: TimelineEvent) {
+
+        // Extract components and set trigger
+        let components = Calendar.current.dateComponents(in: .current, from: timelineEvent.event.time)
+        let trigger = UNCalendarNotificationTrigger(dateMatching: components, repeats: false)
 
+        print(timelineEvent.event.uuid)
+
+
+        let content = UNMutableNotificationContent()
+        content.title = timelineEvent.event.title + " is starting!"
+        content.body = timelineEvent.event.description
+        let request = UNNotificationRequest(identifier: timelineEvent.event.uuid, content: content, trigger: trigger)
+
+        // Add request to local notification center
+        UNUserNotificationCenter.current().add(request) { error in
+            if let error = error {
+                DispatchQueue.main.async {
+                    MessageHandler.showNotificationRegisterError(withEventTitle: timelineEvent.event.title)
+                }
+                return
+            }
+        }
+    }
+
+    private func unscheduleFavoriteNotification(forEvent timelineEvent: TimelineEvent) {
+        let identifier = timelineEvent.event.uuid
+        UNUserNotificationCenter.current().removePendingNotificationRequests(withIdentifiers: [identifier])
+    }
 
     // MARK: Section headers and view configuration
 

BrickHack-Mobile/Models/ScheduleParser.swift

@@ -202,7 +202,7 @@ class ScheduleParser {
 
         // The parse loop
         // @FIXME: Using 3rd sheet as test, convert to 1st for production
-        for (rowIndex, rowData) in data.sheets[0].data[0].rowData.enumerated() {
+        for (rowIndex, rowData) in data.sheets[2].data[0].rowData.enumerated() {
 
             // See comment below for how this skip variable functions
             var skip = false