feat(chat): 채팅방 시간 표시를 추가한다

2026-06-10 11:29:52 +09:00
parent 4c351da60c
commit 50f0fb3d15
5 changed files with 243 additions and 0 deletions
--- a/app/src/main/java/kr/co/vividnext/sodalive/v2/main/chat/model/ChatRoomTimeTextFormatter.kt
+++ b/app/src/main/java/kr/co/vividnext/sodalive/v2/main/chat/model/ChatRoomTimeTextFormatter.kt
@@ -0,0 +1,78 @@
+package kr.co.vividnext.sodalive.v2.main.chat.model
+
+import android.content.Context
+import kr.co.vividnext.sodalive.R
+import java.text.ParsePosition
+import java.text.SimpleDateFormat
+import java.util.Calendar
+import java.util.Date
+import java.util.Locale
+import java.util.TimeZone
+
+fun formatChatRoomLastMessageTime(
+    context: Context,
+    isoText: String?,
+    nowMillis: Long = System.currentTimeMillis(),
+    timeZone: TimeZone = TimeZone.getDefault(),
+    locale: Locale = Locale.getDefault()
+): String {
+    val messageMillis = parseIsoTimeMillis(isoText)
+        ?: return context.getString(R.string.screen_chat_time_just_now)
+    val diffMillis = (nowMillis - messageMillis).coerceAtLeast(0L)
+
+    val minute = 60_000L
+    val hour = 60 * minute
+    val day = 24 * hour
+
+    return when {
+        diffMillis < minute -> context.getString(R.string.screen_chat_time_just_now)
+        diffMillis < hour -> context.getString(R.string.screen_chat_time_minutes, (diffMillis / minute).toInt())
+        diffMillis < day -> context.getString(R.string.screen_chat_time_hours, (diffMillis / hour).toInt())
+        diffMillis < 8 * day -> context.getString(R.string.screen_chat_time_days, (diffMillis / day).toInt())
+        else -> formatDateText(messageMillis, nowMillis, timeZone, locale)
+    }
+}
+
+private fun parseIsoTimeMillis(isoText: String?): Long? {
+    if (isoText.isNullOrBlank()) return null
+
+    val value = isoText.trim()
+    val patterns = listOf(
+        "yyyy-MM-dd'T'HH:mm:ss.SSSXXX",
+        "yyyy-MM-dd'T'HH:mm:ssXXX",
+        "yyyy-MM-dd'T'HH:mm:ss.SSSXX",
+        "yyyy-MM-dd'T'HH:mm:ssXX",
+        "yyyy-MM-dd'T'HH:mm:ss.SSSX",
+        "yyyy-MM-dd'T'HH:mm:ssX"
+    )
+
+    for (pattern in patterns) {
+        val formatter = SimpleDateFormat(pattern, Locale.US).apply { isLenient = false }
+        val position = ParsePosition(0)
+        val parsed: Date? = formatter.parse(value, position)
+        if (parsed != null && position.index == value.length) return parsed.time
+    }
+
+    return null
+}
+
+private fun formatDateText(
+    messageMillis: Long,
+    nowMillis: Long,
+    timeZone: TimeZone,
+    locale: Locale
+): String {
+    val nowCalendar = Calendar.getInstance(timeZone, locale).apply { timeInMillis = nowMillis }
+    val messageCalendar = Calendar.getInstance(timeZone, locale).apply { timeInMillis = messageMillis }
+    val pattern = if (nowCalendar.get(Calendar.YEAR) == messageCalendar.get(Calendar.YEAR)) {
+        when (locale.language) {
+            Locale.ENGLISH.language -> "MMM d"
+            Locale.JAPANESE.language -> "M月d日"
+            else -> "M월 d일"
+        }
+    } else {
+        "yyyy.MM.dd"
+    }
+
+    return SimpleDateFormat(pattern, locale).apply { this.timeZone = timeZone }.format(Date(messageMillis))
+}