Let users clear recent activity on Home (#11)

Add a Clear button in the Home Recent section header to drop all
entries, plus swipe-to-delete on each row to forget a single item
(gated on the existing swipe-actions setting). Back it with
RecentActivityStore.clear and remove(id:), with unit tests.

1 files changed, 10 insertions, 0 deletions

diff --git a/Hutch/Views/Home/RecentActivityStore.swift b/Hutch/Views/Home/RecentActivityStore.swift
index 464a2c1..6bc5720 100644
--- a/Hutch/Views/Home/RecentActivityStore.swift
+++ b/Hutch/Views/Home/RecentActivityStore.swift
@@ -129,6 +129,16 @@ enum RecentActivityStore {
         )
     }
 
+    static func remove(id: String, defaults: UserDefaults) {
+        var entries = load(defaults: defaults)
+        entries.removeAll { $0.id == id }
+        save(entries, defaults: defaults)
+    }
+
+    static func clear(defaults: UserDefaults) {
+        defaults.removeObject(forKey: AppStorageKeys.recentActivity)
+    }
+
     private static func record(_ entry: RecentActivityEntry, defaults: UserDefaults) {
         var entries = load(defaults: defaults)
         entries.removeAll { $0.id == entry.id }