From bfbd1cbf0afdeb7dceaef55711a9a2054fab0bfe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rn-Michael=20Miehe?= <jmm@yavook.de>
Date: Mon, 3 Jun 2019 22:28:32 +0200
Subject: [PATCH] gameKeys iteration

---
 backend/session.coffee | 36 +++++++++++++++++++++++++++++++++---
 1 file changed, 33 insertions(+), 3 deletions(-)

diff --git a/backend/session.coffee b/backend/session.coffee
index e8f3590..e3bc13f 100644
--- a/backend/session.coffee
+++ b/backend/session.coffee
@@ -81,9 +81,39 @@ class FFTCGSESSION
               reject null
 
             else
-              # return game ID
-              logger.info "OK '#{@gameKey digest}' created"
-              resolve digest
+              # add game to active set
+              @db.sadd (@gameKey 'active'), (@gameKey digest), (err, res) =>
+                # return game ID
+                logger.info "OK '#{@gameKey digest}' created"
+                resolve digest
+
+  getGames: ->
+    # function to return all active gameKeys
+    activeGameKeys = (set, cursor) =>
+      # start iteration
+      set ?= new Set()
+      cursor ?= '0'
+
+      return new Promise (resolve, reject) =>
+        # scan "active" gameKey
+        @db.sscan (@gameKey 'active'), cursor, 'COUNT', '100', (err, res) =>
+
+          # add to results set
+          cursor = res[0]
+          for key in res[1]
+            set.add key
+
+          if cursor == '0'
+            # done on cursor = 0
+            resolve set
+          else
+            # recursive call (resolve one step deeper)
+            allGames set, cursor
+            .then (set) =>
+              resolve set
+
+    activeGameKeys().then (set) =>
+      logger.info "game count: #{Array.from(set).length}"
 
   joinGame: (digest, userid) ->
     new Promise (resolve, reject) =>