Added a discard button and error handling to the RecordingView view in the Recording package target.

Packages/Features/Sources/Recording/View Models/RecordingViewModel.swift

@@ -108,6 +108,11 @@ extension RecordingView {
             state == .processing
         }
 
+        /// Whether the discard button should be visible.
+        var shouldShowDiscard: Bool {
+            state == .paused
+        }
+
         /// Whether the send button should be visible.
         var shouldShowSend: Bool {
             state != .notRecording
@@ -126,8 +131,43 @@ extension RecordingView {
                 .formatted(.time(pattern: .minuteSecond(padMinuteToLength: 2)))
         }
 
+        /// The elapsed recording time, spelled out in full units for assistive technologies.
+        var textTimerAccessible: String {
+            Duration
+                .seconds(elapsedSeconds)
+                .formatted(.units(
+                    allowed: [.minutes, .seconds],
+                    width: .wide
+                ))
+        }
+
         // MARK: Methods
 
+        /// Handles a press of the discard button.
+        ///
+        /// Throws away a paused recording: it resets the timer, returns to the not-recording state, and stops the audio capture,
+        /// deleting the captured audio file. Does nothing in any other state.
+        func pressedDiscard() {
+            guard state == .paused else {
+                return
+            }
+
+            state = .notRecording
+
+            stopTimer()
+
+            accumulated = .zero
+            elapsedSeconds = 0
+
+            enqueueCapturer {
+                guard let audio = try? await self.capturer.stop() else {
+                    return
+                }
+
+                try? FileManager.default.removeItem(at: audio)
+            }
+        }
+
         /// Handles a press of the main button.
         ///
         /// Starts a recording when idle, pauses an ongoing recording, or resumes a paused one — starting and stopping the timer
@@ -213,7 +253,9 @@ private extension RecordingView.Model {
                 )
             } catch {
                 transcription = nil
-                self.error = .transcriptionFailed
+                self.error = error as? AudioTranscribingError == .assetsNotInstalled
+                    ? .assetsUnavailable
+                    : .transcriptionFailed
             }
         } catch {
             transcription = nil