ios: display year in chat for previous years (#4919)

* ios: display year in chat for previous years

* fix chat time, show past years in the list

* style

---------

Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com>

apps/ios/Shared/Views/Chat/ChatView.swift

@@ -622,7 +622,11 @@ struct ChatView: View {
             Text(String.localizedStringWithFormat(
                 NSLocalizedString("%@, %@", comment: "format for date separator in chat"),
                 date.formatted(.dateTime.weekday(.abbreviated)),
-                date.formatted(.dateTime.day().month(.abbreviated))
+                date.formatted(
+                    Calendar.current.isDate(date, equalTo: .now, toGranularity: .year)
+                    ? .dateTime.day().month(.abbreviated)
+                    : .dateTime.day().month(.abbreviated).year()
+                )
             ))
             .font(.callout)
             .fontWeight(.medium)

apps/ios/Shared/Views/ChatList/ChatPreviewView.swift

@@ -35,11 +35,16 @@ struct ChatPreviewView: View {
             }
             .padding(.leading, 4)
 
+            let chatTs = if let cItem {
+                cItem.meta.itemTs
+            } else {
+                chat.chatInfo.chatTs
+            }
             VStack(spacing: 0) {
                 HStack(alignment: .top) {
                     chatPreviewTitle()
                     Spacer()
-                    (cItem?.timestampText ?? formatTimestampText(chat.chatInfo.chatTs))
+                    (formatTimestampText(chatTs))
                         .font(.subheadline)
                         .frame(minWidth: 60, alignment: .trailing)
                         .foregroundColor(theme.colors.secondary)

apps/ios/SimpleXChat/ChatTypes.swift

@@ -2765,9 +2765,16 @@ public struct CITimed: Decodable, Hashable {
 
 let msgTimeFormat = Date.FormatStyle.dateTime.hour().minute()
 let msgDateFormat = Date.FormatStyle.dateTime.day(.twoDigits).month(.twoDigits)
+let msgDateYearFormat = Date.FormatStyle.dateTime.day(.twoDigits).month(.twoDigits).year(.twoDigits)
 
 public func formatTimestampText(_ date: Date) -> Text {
-    Text(verbatim: date.formatted(recent(date) ? msgTimeFormat : msgDateFormat))
+    Text(verbatim: date.formatted(
+        recent(date)
+        ? msgTimeFormat
+        : Calendar.current.isDate(date, equalTo: .now, toGranularity: .year)
+        ? msgDateFormat
+        : msgDateYearFormat
+    ))
 }
 
 public func formatTimestampMeta(_ date: Date) -> String {