Restores todo metric

codexcrawler/components/dhtmetrics.nim

@@ -40,6 +40,7 @@ method start*(d: DhtMetrics): Future[?!void] {.async.} =
 
   proc onCheck(event: DhtNodeCheckEventData): Future[?!void] {.async.} =
     await d.handleCheckEvent(event)
+
   d.sub = d.state.events.dhtNodeCheck.subscribe(onCheck)
 
   return success()

codexcrawler/components/todolist.nim

@@ -11,6 +11,7 @@ import ../state
 import ../types
 import ../component
 import ../utils/asyncdataevent
+import ../services/metrics
 
 logScope:
   topics = "todolist"
@@ -21,11 +22,14 @@ type TodoList* = ref object of Component
   subNew: AsyncDataEventSubscription
   subExp: AsyncDataEventSubscription
   emptySignal: ?Future[void]
+  metrics: Metrics
 
 proc addNodes(t: TodoList, nids: seq[Nid]) =
   for nid in nids:
     t.nids.add(nid)
 
+  t.metrics.setTodoNodes(t.nids.len)
+
   if s =? t.emptySignal:
     trace "Nodes added, resuming...", nodes = nids.len
     s.complete()
@@ -64,8 +68,10 @@ method stop*(t: TodoList): Future[?!void] {.async.} =
   await t.state.events.nodesExpired.unsubscribe(t.subExp)
   return success()
 
-proc new*(_: type TodoList, state: State): TodoList =
-  TodoList(nids: newSeq[Nid](), state: state, emptySignal: Future[void].none)
+proc new*(_: type TodoList, state: State, metrics: Metrics): TodoList =
+  TodoList(
+    nids: newSeq[Nid](), state: state, emptySignal: Future[void].none, metrics: metrics
+  )
 
-proc createTodoList*(state: State): TodoList =
-  TodoList.new(state)
+proc createTodoList*(state: State, metrics: Metrics): TodoList =
+  TodoList.new(state, metrics)

codexcrawler/installer.nim

@@ -22,7 +22,7 @@ proc createComponents*(state: State): Future[?!seq[Component]] {.async.} =
 
   let
     metrics = createMetrics(state.config.metricsAddress, state.config.metricsPort)
-    todoList = createTodoList(state)
+    todoList = createTodoList(state, metrics)
 
   without dhtMetrics =? createDhtMetrics(state, metrics), err:
     return failure(err)

tests/codexcrawler/components/testtodolist.nim

@@ -7,19 +7,22 @@ import ../../../codexcrawler/utils/asyncdataevent
 import ../../../codexcrawler/types
 import ../../../codexcrawler/state
 import ../mocks/mockstate
+import ../mocks/mockmetrics
 import ../helpers
 
 suite "TodoList":
   var
     nid: Nid
     state: MockState
+    metrics: MockMetrics
     todo: TodoList
 
   setup:
     nid = genNid()
     state = createMockState()
+    metrics = createMockMetrics()
 
-    todo = TodoList.new(state)
+    todo = TodoList.new(state, metrics)
 
     (await todo.start()).tryGet()
 
@@ -47,6 +50,19 @@ suite "TodoList":
     check:
       item == nid
 
+  test "newNodesDiscovered event updates todo metric":
+    await fireNewNodesDiscoveredEvent(@[nid])
+
+    check:
+      metrics.todo == 1
+
+  test "nodesExpired event updates todo metric":
+    await fireNodesExpiredEvent(@[nid])
+    let item = (await todo.pop).tryGet()
+
+    check:
+      metrics.todo == 1
+
   test "pop on empty todo list waits until item is added":
     let popFuture = todo.pop()
     check: