Expose frozen_at in metrics rather than just if the chat is frozen or not

Author: hpeebles

backend/canisters/community/impl/src/lib.rs

@@ -323,7 +323,7 @@ impl RuntimeState {
             owners: self.data.members.owners().len() as u32,
             blocked: self.data.members.blocked().len() as u32,
             invited: self.data.invited_users.len() as u32,
-            frozen: self.data.is_frozen(),
+            frozen_at: self.data.frozen.as_ref().map(|f| f.timestamp),
             groups_being_imported: self.data.groups_being_imported.summaries(),
             instruction_counts: self.data.instruction_counts_log.iter().collect(),
             event_store_client_info: self.data.event_store_client.info(),
@@ -1052,7 +1052,7 @@ pub struct Metrics {
     pub owners: u32,
     pub blocked: u32,
     pub invited: u32,
-    pub frozen: bool,
+    pub frozen_at: Option<TimestampMillis>,
     pub groups_being_imported: Vec<GroupBeingImportedSummary>,
     pub instruction_counts: Vec<InstructionCountEntry>,
     pub event_store_client_info: EventStoreClientInfo,

backend/canisters/group/impl/src/lib.rs

@@ -419,7 +419,7 @@ impl RuntimeState {
             messages_in_last_day,
             events_in_last_hour,
             events_in_last_day,
-            frozen: self.data.is_frozen(),
+            frozen_at: self.data.frozen.as_ref().map(|f| f.timestamp),
             instruction_counts: self.data.instruction_counts_log.iter().collect(),
             community_being_imported_into: self
                 .data
@@ -879,7 +879,7 @@ pub struct Metrics {
     pub messages_in_last_day: u64,
     pub events_in_last_hour: u64,
     pub events_in_last_day: u64,
-    pub frozen: bool,
+    pub frozen_at: Option<TimestampMillis>,
     pub instruction_counts: Vec<InstructionCountEntry>,
     pub community_being_imported_into: Option<CommunityId>,
     pub serialized_chat_state_bytes: u64,