Checkin

1 files changed, 29 insertions, 23 deletions

diff --git a/src/site.clj b/src/site.clj
index cce5da1..4e29e2b 100644
--- a/src/site.clj
+++ b/src/site.clj
@@ -8,13 +8,12 @@
 (defstruct user-struct :nick :last-seen)
 (defstruct message-struct :nick :content :timestamp)
 
-
 (def users (ref {}))
 (def messages (ref []))
 
 (def run-flusher true)
 (def flusher-sleep-ms 4000)
-(def user-timeout-ms 30000)
+(def user-timeout-ms 5000)
 
 (defn swap [f]
   (fn [& more] (apply f (reverse more))))
@@ -38,38 +37,44 @@
 (defn resp-success [message]
   {:status 200 :headers {} :body (json-str message)})
 
-(defn join-success [nick]
-  (alter users assoc nick (struct user-struct nick (System/currentTimeMillis)))
-  (let [users (sort (keys @users))
-        messages (reverse (take 40 @messages))
-        data {"users" users "messages" messages}]
-    [(session-assoc :nick nick)
-     (resp-success data)]))
+(defn new-messages 
+  ([since] (reverse (take-while (fn [m] (> (m :timestamp) since)) @messages)))
+  ([] (reverse (take 25 @messages))))
 
-(defn try-join [params]
-  (let [nick (escape-html (params :nick))]
-    (dosync
-     (if (contains? @users nick)
-       (resp-error "NICK_TAKEN")
-       (join-success nick)))))
+(def random (java.util.Random.))
+(def max-user-int 1000000)
+
+(defn make-random-nick []
+  (let [nick (str "user-" (.nextInt random  max-user-int))]
+    (if (contains? @users nick)
+      (make-random-nick)
+      nick)))
 
-(defn new-messages [since]
-  (reverse (take-while (fn [m] (> (m :timestamp) since)) @messages)))
+(defn updates
+  ([] {"users" (keys @users) "messages" (new-messages)})
+  ([since] {"users" (keys @users) "messages" (new-messages since)}))
+
+(defn init [session]
+  (let [new-nick (make-random-nick)]
+    (dosync
+     (alter users assoc new-nick
+            (struct user-struct new-nick (System/currentTimeMillis)))
+     [(session-assoc :nick new-nick)
+      (resp-success (assoc (updates) :nick new-nick))])))
 
 (defn refresh [nick]
   (dosync
    (if (contains? @users nick)
-     (let [last-seen (get-in @users [nick :last-seen])
-           user-list (sort (keys @users))]
+     (let [last-seen (get-in @users [nick :last-seen])]
        (alter users assoc-in [nick :last-seen] (System/currentTimeMillis))
-       (resp-success {"messages" (new-messages last-seen)
-                      "users" user-list}))
+       (resp-success (updates last-seen)))
      (resp-error "UNKNOWN_USER"))))
 
+
 (defn msg [session params]
   (dosync
    (let [nick (session :nick)
-         content (escape-html (params :content))
+         content (params :content)
          msg (struct message-struct nick content (System/currentTimeMillis))]
      (if (contains? @users nick)
        (do (alter messages (swap cons) msg)
@@ -80,7 +85,8 @@
   (GET "/" (serve-file "static" "index.html"))
   (GET "/static/*" (or (serve-file "static" (params :*))
                        :next))
-  (GET "/join" (try-join params))
+  (GET "/favicon.ico" (serve-file "static" "favicon.ico"))
+  (GET "/init" (init (session :nick)))
   (GET "/refresh" (refresh (session :nick)))
   (GET "/msg" (msg session params))
   (ANY "*" [404 "Page not found"]))