#10: adding datascript to the cljs example app

.gitignore

@@ -4,8 +4,7 @@
 pom.xml
 pom.xml.asc
 .repl*
-/dev-resources
-/test/resources/public/js
+/dev-resources/resources/public/js/*
 figwheel_server.log
 *.jar
 *.class

project.clj

@@ -10,7 +10,8 @@
                  [org.clojure/clojurescript "1.7.170"]]
   
   :profiles {:dev {:source-paths ["dev" "test/app"]
-                   :dependencies [[ch.qos.logback/logback-classic "1.1.3"]
+                   :dependencies [[datascript "0.13.3"]
+                                  [ch.qos.logback/logback-classic "1.1.3"]
                                   [org.clojure/tools.logging "0.3.1"]
                                   [robert/hooke "1.3.0"]
                                   [org.clojure/tools.namespace "0.2.11"]
@@ -28,16 +29,15 @@
                              {:source-paths ["src" "test"]
                               :figwheel true
 
-                              :compiler {:main mount.example.cljs
+                              :compiler {:main mount.example.app
                                          :asset-path "js/compiled/out"
-                                         :output-to "test/resources/public/js/compiled/mount.js"
-                                         :output-dir "test/resources/public/js/compiled/out"
+                                         :output-to "dev-resources/public/js/compiled/mount.js"
+                                         :output-dir "dev-resources/public/js/compiled/out"
                                          :optimizations :none
                                          :source-map true
-                                         :source-map-timestamp true
-                                         :cache-analysis true}}
+                                         :source-map-timestamp true}}
                              :prod
                              {:source-paths ["src" "test"]
-                              :compiler {:output-to "test/resources/public/js/compiled/mount.js"
+                              :compiler {:output-to "dev-resources/public/js/compiled/mount.js"
                                          :optimizations :advanced
                                          :pretty-print false}}}}}})

src/mount/core.cljc

@@ -1,5 +1,4 @@
-(ns #?(:clj mount.core
-       :cljs ^:figwheel-no-load mount.core)
+(ns mount.core
   #?(:clj (:require [mount.tools.macro :refer [on-error throw-runtime] :as macro])
      :cljs (:require [mount.tools.macro :as macro]
                      [mount.tools.cljs :as cljs]))

test/mount/example/app.cljs

@@ -0,0 +1,16 @@
+(ns mount.example.app
+  (:require [mount.core :as mount]
+            [mount.example.app-config]
+            [mount.example.websockets]
+            [mount.example.audit-log :refer [log find-all-logs]]))
+
+(defn show-log []
+  (.write js/document 
+          (interpose "<br/>" (find-all-logs log))))
+
+(mount/start)
+
+;; time for websocket to connect
+(js/setTimeout #(do (mount/stop-except "#'mount.example.audit-log/log")
+                    (show-log)) 500)
+

test/mount/example/app_config.cljs

@@ -1,8 +1,9 @@
 (ns mount.example.app-config
+  (:require [mount.example.audit-log :refer [audit log]])
   (:require-macros [mount.core :refer [defstate]]))
 
 (defn load-config [path]
-  (println "loading config from " path " (at least pretending)")
+  (audit log :app-config "loading config from '" path "' (at least pretending)")
   {:system-a {:uri "ws://echo.websocket.org/"}})
 
 (defstate config :start (load-config "resources/config.end"))

test/mount/example/audit_log.cljs

@@ -0,0 +1,24 @@
+(ns mount.example.audit-log
+  (:require [datascript.core :as d])
+  (:require-macros [mount.core :refer [defstate]]))
+
+(defstate log :start (d/create-conn {}))
+
+(defn audit [db source & msg]
+  (d/transact! @db [{:db/id -1
+                     :source source
+                     :timestamp (js/Date.)
+                     :msg (apply str msg)}]))
+
+(defn find-source-logs [db source]
+  (d/q '{:find [?t ?msg]
+         :in [$ ?s] 
+         :where [[?e :source ?s]
+                 [?e :timestamp ?t]
+                 [?e :msg ?msg]]}
+       @@db source))
+
+(defn find-all-logs [db]
+  (->> (map :e (d/datoms @@db :aevt :timestamp)) 
+       dedupe
+       (d/pull-many @@db '[:timestamp :source :msg])))

test/mount/example/cljs.cljs

@@ -1,13 +0,0 @@
-(ns mount.example.cljs
-  (:require [mount.core :as mount]
-            [mount.example.websockets :refer [system-a]]))
-
-(enable-console-print!)
-
-(println "(mount/start)" (mount/start))
-
-(println "system-a: " @system-a)
-
-;; time for websocket to connect
-(js/setTimeout #(println "(mount/stop)" (mount/stop))
-               500)

test/mount/example/websockets.cljs

@@ -1,16 +1,17 @@
 (ns mount.example.websockets
-  (:require [mount.example.app-config :refer [config]])
+  (:require [mount.example.app-config :refer [config]]
+            [mount.example.audit-log :refer [audit log]])
   (:require-macros [mount.core :refer [defstate]]))
 
 (defn connect [uri]
-  (println "connecting to " uri)
+  (audit log :system-a "connecting to '" uri "'")
   (let [ws (js/WebSocket. uri)]
-    (set! (.-onopen ws) #(println "opening ws @" uri))
-    (set! (.-onclose ws) #(println "closing ws @" uri))
+    (set! (.-onopen ws) #(audit log :system-a "opening ws @" uri))
+    (set! (.-onclose ws) #(audit log :system-a "closing ws @" uri))
     ws))
 
 (defn disconnect [ws]
-  (println "disconnecting " @ws)
+  (audit log "disconnecting " @ws)
   (.close @ws))
 
 (defstate system-a :start (connect (get-in @config [:system-a :uri]))