Add the ability to edit or clear the due date, and priority.

Sources/RemindersLibrary/CLI.swift

@@ -229,6 +229,26 @@ private struct Edit: ParsableCommand {
     @Argument(
         help: "The index or id of the reminder to delete, see 'show' for indexes")
     var index: String
+
+    @Option(
+        name: .shortAndLong,
+        help: "The new date the reminder is due")
+    var dueDate: DateComponents?
+
+    @Flag(
+        name: .shortAndLong,
+        help: "Clear the due date.")
+    var clearDueDate: Bool = false
+
+    @Option(
+        name: .shortAndLong,
+        help: "The new priority of the reminder")
+    var priority: Priority?
+
+    @Flag(
+        name: .shortAndLong,
+        help: "Clear the priority of the reminder.")
+    var clearPriority: Bool = false
 
     @Option(
         name: .shortAndLong,
@@ -241,8 +261,13 @@ private struct Edit: ParsableCommand {
     var reminder: [String] = []
 
     func validate() throws {
-        if self.reminder.isEmpty && self.notes == nil {
-            throw ValidationError("Must specify either new reminder content or new notes")
+
+        if self.dueDate != nil && self.clearDueDate {
+            throw ValidationError("Don't try to set & clear the due date at the same time.")
+        }
+
+        if self.reminder.isEmpty && self.notes == nil && self.dueDate == nil && !self.clearDueDate {
+            throw ValidationError("Must specify new reminder content, new notes, or a new due date.")
         }
     }
 
@@ -252,7 +277,11 @@ private struct Edit: ParsableCommand {
             itemAtIndex: self.index,
             onListNamed: self.listName,
             newText: newText.isEmpty ? nil : newText,
-            newNotes: self.notes
+            newNotes: self.notes,
+            dueDateComponents: self.dueDate,
+            clearDueDate: self.clearDueDate,
+            priority: self.priority,
+            clearPriority: self.clearPriority
         )
     }
 }

Sources/RemindersLibrary/Reminders.swift

@@ -223,7 +223,7 @@ public final class Reminders {
         }
     }
 
-    func edit(itemAtIndex index: String, onListNamed name: String, newText: String?, newNotes: String?) {
+    func edit(itemAtIndex index: String, onListNamed name: String, newText: String?, newNotes: String?, dueDateComponents: DateComponents? = nil, clearDueDate: Bool, priority: Priority?, clearPriority: Bool) {
         let calendar = self.calendar(withName: name)
         let semaphore = DispatchSemaphore(value: 0)
 
@@ -236,6 +236,32 @@ public final class Reminders {
             do {
                 reminder.title = newText ?? reminder.title
                 reminder.notes = newNotes ?? reminder.notes
+
+
+                if clearPriority {
+                    // https://developer.apple.com/documentation/eventkit/ekreminderpriority/none
+                    reminder.priority = 0
+                }
+                else if priority != nil {
+                    reminder.priority = Int(priority?.value.rawValue ?? UInt(reminder.priority))
+
+                }
+
+                if clearDueDate || (dueDateComponents != nil) {
+                    // remove previous time-based alarms, leaving location alarms.
+                    reminder.dueDateComponents = nil
+                    for alarm in reminder.alarms ?? [] {
+                        if alarm.structuredLocation != nil { continue } else { reminder.removeAlarm(alarm) }
+                    }
+
+                }
+                if dueDateComponents != nil {
+                    reminder.dueDateComponents = dueDateComponents
+                    if let dueDate = dueDateComponents?.date, dueDateComponents?.hour != nil {
+                        reminder.addAlarm(EKAlarm(absoluteDate: dueDate))
+                    }
+                }
+
                 try Store.save(reminder, commit: true)
                 print("Updated reminder '\(reminder.title!)'")
             } catch let error {