Add reminders to iOS

app/src/main/java/net/underdesk/circolapp/viewmodels/RemindersViewModel.kt

@@ -43,7 +43,7 @@ class RemindersViewModel internal constructor(
     val circulars: LiveData<List<Circular>> =
         Transformations.switchMap(DoubleTrigger(query, schoolID)) { input ->
             if (input.first == null || input.first == "") {
-                circularRepository.circularDao.getReminders(input.second ?: 0).asLiveData()
+                circularRepository.circularDao.getFlowReminders(input.second ?: 0).asLiveData()
             } else {
                 circularRepository.circularDao.searchReminders(
                     "%${input.first}%",

ios/circolapp/circolapp.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		9512D3C1257AB4F60023C3A1 /* NewReminderView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9512D3C0257AB4F60023C3A1 /* NewReminderView.swift */; };
 		952DEDDF2576F8DC001DF85D /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 952DEDDE2576F8DC001DF85D /* SceneDelegate.swift */; };
 		9547205B2573B688005AA401 /* Settings.bundle in Resources */ = {isa = PBXBuildFile; fileRef = 9547205A2573B688005AA401 /* Settings.bundle */; };
 		954E68352574E3890034EBA8 /* iOSServerApi.swift in Sources */ = {isa = PBXBuildFile; fileRef = 954E68342574E3890034EBA8 /* iOSServerApi.swift */; };
@@ -41,6 +42,7 @@
 /* Begin PBXFileReference section */
 		892B265487980F6A344AC2A7 /* Pods-circolapp.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-circolapp.debug.xcconfig"; path = "Target Support Files/Pods-circolapp/Pods-circolapp.debug.xcconfig"; sourceTree = "<group>"; };
 		8BEA78E7C5BBEF0119834B33 /* Pods_circolapp.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_circolapp.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		9512D3C0257AB4F60023C3A1 /* NewReminderView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NewReminderView.swift; sourceTree = "<group>"; };
 		952C5954255C57650018C010 /* shared.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = shared.framework; path = "../../shared/build/xcode-frameworks/shared.framework"; sourceTree = "<group>"; };
 		952DEDDE2576F8DC001DF85D /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
 		9547205A2573B688005AA401 /* Settings.bundle */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.plug-in"; path = Settings.bundle; sourceTree = "<group>"; };
@@ -97,6 +99,7 @@
 				95CA31B1255C1EDE00AC095B /* ContentView.swift */,
 				95CA31BF255C28C300AC095B /* CircularView.swift */,
 				95BC3BF72572BCF900F24400 /* AttachmentView.swift */,
+				9512D3C0257AB4F60023C3A1 /* NewReminderView.swift */,
 			);
 			path = View;
 			sourceTree = "<group>";
@@ -278,6 +281,7 @@
 				954E68352574E3890034EBA8 /* iOSServerApi.swift in Sources */,
 				95CA31B0255C1EDE00AC095B /* AppDelegate.swift in Sources */,
 				95BC3BF82572BCF900F24400 /* AttachmentView.swift in Sources */,
+				9512D3C1257AB4F60023C3A1 /* NewReminderView.swift in Sources */,
 				954E683D2574ED9E0034EBA8 /* UserDefaultsExtensions.swift in Sources */,
 				95C46A51255D3A34007A75E5 /* CircularViewModel.swift in Sources */,
 			);

ios/circolapp/circolapp/AppDelegate.swift

@@ -30,8 +30,8 @@ class AppDelegate: NSObject, UIApplicationDelegate {
         
         let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
         UNUserNotificationCenter.current().requestAuthorization(
-        options: authOptions,
+            options: authOptions,
-        completionHandler: {_, _ in })
+            completionHandler: {_, _ in })
         
         application.registerForRemoteNotifications()
         
@@ -53,30 +53,56 @@ class AppDelegate: NSObject, UIApplicationDelegate {
 
 extension AppDelegate : UNUserNotificationCenterDelegate {
     
-  // Receive displayed notifications for iOS 10 devices.
+    // Receive displayed notifications for iOS 10 devices.
-  func userNotificationCenter(_ center: UNUserNotificationCenter,
+    func userNotificationCenter(_ center: UNUserNotificationCenter,
-                              willPresent notification: UNNotification,
+                                willPresent notification: UNNotification,
-    withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
+                                withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
-    iOSRepository.getCircularRepository().updateCirculars(returnNewCirculars: false, completionHandler:
+        let userInfo = notification.request.content.userInfo
-                                                                    { result, error in
-                                                                        if let errorReal = error {
-                                                                            print(errorReal.localizedDescription)
-                                                                        }
-                                                                    })
         
-    // UI is updated automatically
+        // Handle reminder
-  }
+        if ((userInfo["reminder"]) != nil) {
+            let circularDao = iOSRepository.getCircularDao()
+            let circular = circularDao.getCircular(id: userInfo["id"] as! Int64, school: userInfo["school"] as! Int32)
+            iOSRepository.getCircularDao().update(id: circular.id, school: circular.school, favourite: circular.favourite, reminder: false, completionHandler: {_,_ in })
             
-  func userNotificationCenter(_ center: UNUserNotificationCenter,
+            // Show notification
-                              didReceive response: UNNotificationResponse,
+            completionHandler([.alert, .sound, .badge])
-                              withCompletionHandler completionHandler: @escaping () -> Void) {
+            return
-    iOSRepository.getCircularRepository().updateCirculars(returnNewCirculars: false, completionHandler:
+        }
-                                                                    { result, error in
-                                                                        if let errorReal = error {
-                                                                            print(errorReal.localizedDescription)
-                                                                        }
-                                                                    })
         
-    completionHandler()
+        // Handle new circular notification
-  }
+        iOSRepository.getCircularRepository().updateCirculars(returnNewCirculars: false, completionHandler:
+                                                                { result, error in
+                                                                    if let errorReal = error {
+                                                                        print(errorReal.localizedDescription)
+                                                                    }
+                                                                })
+        
+        
+        
+        // UI is updated automatically
+        completionHandler([])
+    }
+    
+    // Handle user action
+    func userNotificationCenter(_ center: UNUserNotificationCenter,
+                                didReceive response: UNNotificationResponse,
+                                withCompletionHandler completionHandler: @escaping () -> Void) {
+        let userInfo = response.notification.request.content.userInfo
+        
+        // Do nothing if it's a reminder
+        if ((userInfo["reminder"]) != nil) {
+            completionHandler()
+            return
+        }
+        
+        iOSRepository.getCircularRepository().updateCirculars(returnNewCirculars: false, completionHandler:
+                                                                { result, error in
+                                                                    if let errorReal = error {
+                                                                        print(errorReal.localizedDescription)
+                                                                    }
+                                                                })
+        
+        completionHandler()
+    }
 }

ios/circolapp/circolapp/CircularViewModel.swift

@@ -73,7 +73,7 @@ class CircularViewModel: ObservableObject {
     
     func startObservingAlarms() {
         stopObserving()
-        circularWatcher = repository.circularDao.getRemindersC(school: Int32(schoolID)).watch { circulars in
+        circularWatcher = repository.circularDao.getCFlowReminders(school: Int32(schoolID)).watch { circulars in
             self.circulars = circulars as! Array<Circular>;
         }
     }

ios/circolapp/circolapp/SceneDelegate.swift

@@ -49,6 +49,26 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
     func sceneWillEnterForeground(_ scene: UIScene) {
         // Called as the scene transitions from the background to the foreground.
         // Use this method to undo the changes made on entering the background.
+        
+        let schoolID = UserDefaults.standard.integer(forKey: "school")
+        let reminders = iOSRepository.getCircularDao().getReminders(school: Int32(schoolID))
+
+        // Remove reminder flag if notification was delivered
+        UNUserNotificationCenter.current().getPendingNotificationRequests { notifications in
+            // This function has to be called from the main thread because it is where database is accessible
+            DispatchQueue.main.async {
+                loop:
+                for circular in reminders {
+                    for notification in notifications {
+                        if (String(circular.id) == notification.identifier) {
+                            continue loop
+                        }
+                    }
+                    
+                    iOSRepository.getCircularDao().update(id: circular.id, school: circular.school, favourite: circular.favourite, reminder: false, completionHandler: {_,_ in })
+                }
+            }
+        }
     }
     
     func sceneDidEnterBackground(_ scene: UIScene) {

ios/circolapp/circolapp/View/CircularView.swift

@@ -21,6 +21,7 @@ import UIKit
 import Shared
 
 struct CircularView: View {
+    @State private var creatingReminder: Bool = false
     @State private var showDetail = false
     var circular: Circular
     
@@ -99,7 +100,16 @@ struct CircularView: View {
                     .buttonStyle(PlainButtonStyle())
                     
                     Button(action: {
-                        iOSRepository.getCircularDao().update(id: circular.id, school: circular.school, favourite: circular.favourite, reminder: !circular.reminder, completionHandler: {_,_ in })
+                        if circular.reminder {
+                            let center =  UNUserNotificationCenter.current()
+                            center.removePendingNotificationRequests(withIdentifiers: [String(circular.id)])
+                            
+                            iOSRepository.getCircularDao().update(id: circular.id, school: circular.school, favourite: circular.favourite, reminder: false, completionHandler: {_,_ in })
+                            
+                            return
+                        }
+                        
+                        self.creatingReminder = true
                     }) {
                         Image(systemName: circular.reminder ? "alarm.fill" : "alarm")
                             .foregroundColor(.blue)
@@ -107,10 +117,13 @@ struct CircularView: View {
                             .padding()
                     }
                     .buttonStyle(PlainButtonStyle())
+                    .sheet(isPresented: self.$creatingReminder) {
+                        NewReminderView(circular: circular)
+                    }
                 }
                 
                 ForEach(0..<circular.attachmentsNames.count, id: \.self) { index in
-                        AttachmentView(attachmentName: circular.attachmentsNames[index] as! String, attachmentUrl: circular.attachmentsUrls[index] as! String)
+                    AttachmentView(attachmentName: circular.attachmentsNames[index] as! String, attachmentUrl: circular.attachmentsUrls[index] as! String)
                 }
             }
         }

ios/circolapp/circolapp/View/NewReminderView.swift

@@ -0,0 +1,79 @@
+/*
+ * Circolapp
+ * Copyright (C) 2019-2020  Matteo Schiff
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import SwiftUI
+import Shared
+
+struct NewReminderView: View {
+    @State private var reminderDate = Date()
+    @Environment(\.presentationMode) var presentationMode
+    var circular: Circular
+    
+    var body: some View {
+        NavigationView {
+            DatePicker("Pick a date for the reminder", selection: $reminderDate, in: Date()...)
+                .datePickerStyle(WheelDatePickerStyle())
+                .labelsHidden()
+                .padding()
+                .navigationBarTitle(Text("New reminder"), displayMode: .inline)
+                .navigationBarItems(leading: Button(action: {
+                    self.presentationMode.wrappedValue.dismiss()
+                }) {
+                    Text("Cancel")
+                }, trailing: Button(action: {
+                    createReminder()
+                    self.presentationMode.wrappedValue.dismiss()
+                }) {
+                    Text("Done")
+                })
+        }
+    }
+    
+    func createReminder() {
+        iOSRepository.getCircularDao().update(id: circular.id, school: circular.school, favourite: circular.favourite, reminder: true, completionHandler: {_,_ in })
+        
+        let center =  UNUserNotificationCenter.current()
+        
+        let content = UNMutableNotificationContent()
+        content.title = "Circular number " + String(circular.id)
+        content.body = circular.name
+        content.sound = UNNotificationSound.default
+        content.userInfo["reminder"] = true
+        content.userInfo["id"] = circular.id
+        content.userInfo["school"] = circular.school
+        
+        let comps = Calendar.current.dateComponents([.year, .month, .day, .hour, .minute], from: reminderDate)
+        let trigger = UNCalendarNotificationTrigger(dateMatching: comps, repeats: false)
+        
+        let request = UNNotificationRequest(identifier: String(circular.id), content: content, trigger: trigger)
+        
+        center.add(request) { (error) in
+            if error != nil {
+                print("Error \(String(describing: error))")
+            }
+        }
+    }
+}
+
+struct NewReminderView_Previews: PreviewProvider {
+    static var previewCircular = Circular(id: 1, school: 0, name: "This is a circular", url: "http://example.com", date: "19/11/2020", favourite: false, reminder: false, attachmentsNames: [], attachmentsUrls: [])
+    
+    static var previews: some View {
+        NewReminderView(circular: previewCircular)
+    }
+}

shared/src/commonMain/kotlin/net/underdesk/circolapp/shared/data/CircularDao.kt

@@ -83,9 +83,10 @@ class CircularDao(
             .mapToList()
     fun searchFavouritesC(query: String, school: Int) = searchFavourites(query, school).wrap()
 
-    fun getReminders(school: Int) =
+    fun getReminders(school: Int) = appDatabaseQueries.getReminders(school.toLong(), circularMapper).executeAsList()
+    fun getFlowReminders(school: Int) =
         appDatabaseQueries.getReminders(school.toLong(), circularMapper).asFlow().mapToList()
-    fun getRemindersC(school: Int) = getReminders(school).wrap()
+    fun getCFlowReminders(school: Int) = getFlowReminders(school).wrap()
 
     fun searchReminders(query: String, school: Int) =
         appDatabaseQueries.searchReminders(school.toLong(), query, circularMapper).asFlow()