Add expiry information to gift conversation items.

app/src/main/java/org/thoughtcrime/securesms/badges/gifts/GiftMessageView.kt

@@ -13,6 +13,7 @@ import com.google.android.material.button.MaterialButton
 import org.signal.core.util.DimensionUnit
 import org.thoughtcrime.securesms.R
 import org.thoughtcrime.securesms.badges.BadgeImageView
+import org.thoughtcrime.securesms.badges.gifts.Gifts.formatExpiry
 import org.thoughtcrime.securesms.database.model.databaseprotos.GiftBadge
 import org.thoughtcrime.securesms.mms.GlideRequests
 
@@ -50,7 +51,7 @@ class GiftMessageView @JvmOverloads constructor(
 
   fun setGiftBadge(glideRequests: GlideRequests, giftBadge: GiftBadge, isOutgoing: Boolean, callback: Callback) {
     titleView.setText(R.string.GiftMessageView__gift_badge)
-    descriptionView.text = resources.getQuantityString(R.plurals.GiftMessageView__lasts_for_d_months, 1, 1)
+    descriptionView.text = giftBadge.formatExpiry(context)
     actionView.icon = null
     actionView.setOnClickListener { callback.onViewGiftBadgeClicked() }
     actionView.isEnabled = true

app/src/main/java/org/thoughtcrime/securesms/badges/gifts/Gifts.kt

@@ -1,5 +1,9 @@
 package org.thoughtcrime.securesms.badges.gifts
 
+import android.content.Context
+import org.signal.libsignal.zkgroup.InvalidInputException
+import org.signal.libsignal.zkgroup.receipts.ReceiptCredentialPresentation
+import org.thoughtcrime.securesms.R
 import org.thoughtcrime.securesms.database.ThreadDatabase
 import org.thoughtcrime.securesms.database.model.StoryType
 import org.thoughtcrime.securesms.database.model.databaseprotos.GiftBadge
@@ -7,6 +11,8 @@ import org.thoughtcrime.securesms.mms.OutgoingMediaMessage
 import org.thoughtcrime.securesms.mms.OutgoingSecureMediaMessage
 import org.thoughtcrime.securesms.recipients.Recipient
 import org.thoughtcrime.securesms.util.Base64
+import java.lang.Integer.min
+import java.util.concurrent.TimeUnit
 
 /**
  * Helper object for Gift badges
@@ -45,4 +51,36 @@ object Gifts {
       giftBadge
     )
   }
+
+  /**
+   * @return the expiration time from the redemption token, in UNIX epoch seconds.
+   */
+  private fun GiftBadge.getExpiry(): Long {
+    return try {
+      ReceiptCredentialPresentation(redemptionToken.toByteArray()).receiptExpirationTime
+    } catch (e: InvalidInputException) {
+      return 0L
+    }
+  }
+
+  fun GiftBadge.formatExpiry(context: Context): String {
+    val expiry = getExpiry()
+    val timeRemaining = TimeUnit.SECONDS.toMillis(expiry) - System.currentTimeMillis()
+    if (timeRemaining <= 0) {
+      return context.getString(R.string.Gifts__expired)
+    }
+
+    val days = TimeUnit.MILLISECONDS.toDays(timeRemaining).toInt()
+    if (days > 0) {
+      return context.resources.getQuantityString(R.plurals.Gifts__d_days_remaining, days, days)
+    }
+
+    val hours = TimeUnit.MILLISECONDS.toHours(timeRemaining).toInt()
+    if (hours > 0) {
+      return context.resources.getQuantityString(R.plurals.Gifts__d_hours_remaining, hours, hours)
+    }
+
+    val minutes = min(1, TimeUnit.MILLISECONDS.toMinutes(timeRemaining).toInt())
+    return context.resources.getQuantityString(R.plurals.Gifts__d_minutes_remaining, minutes, minutes)
+  }
 }

app/src/main/res/values/strings.xml

@@ -4824,6 +4824,23 @@
         <item quantity="one">Group Story · %1$d viewer</item>
         <item quantity="other">Group Story · %1$d viewers</item>
     </plurals>
+    <!-- Gift expiry days remaining -->
+    <plurals name="Gifts__d_days_remaining">
+        <item quantity="one">%1$d days remaining</item>
+        <item quantity="other">%1$d days remaining</item>
+    </plurals>
+    <!-- Gift expiry hours remaining -->
+    <plurals name="Gifts__d_hours_remaining">
+        <item quantity="one">%1$d hours remaining</item>
+        <item quantity="other">%1$d hours remaining</item>
+    </plurals>
+    <!-- Gift expiry minutes remaining -->
+    <plurals name="Gifts__d_minutes_remaining">
+        <item quantity="one">%1$d minute remaining</item>
+        <item quantity="other">%1$d minutes remaining</item>
+    </plurals>
+    <!-- Gift expiry expired -->
+    <string name="Gifts__expired">Expired</string>
 
     <!-- EOF -->