feat(chat): 대화 날짜 구분선을 연결한다

2026-10-19 10:12:57 +09:00
parent e765c3c75c
commit 7a6d12e871
5 changed files with 185 additions and 8 deletions
@@ -1,6 +1,26 @@
 import Foundation

+struct UserCreatorChatDatedMessage: Identifiable {
+    let message: UserCreatorChatDisplayMessage
+    let separatorDate: Date?
+
+    var id: String { message.id }
+}
+
 enum UserCreatorChatDatePresentation {
+    static func rows(from messages: [UserCreatorChatDisplayMessage], calendar: Calendar, timeZone: TimeZone) -> [UserCreatorChatDatedMessage] {
+        var calendar = calendar
+        calendar.timeZone = timeZone
+        var previousDate: Date?
+
+        return messages.filter { $0.messageType == "TEXT" }.map { message in
+            let date = Date(timeIntervalSince1970: TimeInterval(message.createdAt) / 1000)
+            let startsDay = previousDate.map { !calendar.isDate($0, inSameDayAs: date) } ?? true
+            previousDate = date
+            return UserCreatorChatDatedMessage(message: message, separatorDate: startsDay ? date : nil)
+        }
+    }
+
    static func title(for date: Date, locale: Locale, calendar: Calendar, timeZone: TimeZone) -> String {
        var calendar = calendar
        calendar.timeZone = timeZone