Implement authentication

shadow-cljs.edn

@@ -5,6 +5,7 @@
  :dependencies
  [[reagent "0.7.0"]
   [re-frame "0.10.5"]
+  [day8.re-frame/http-fx "0.1.6"]
   ;; debugging
   [day8.re-frame/re-frame-10x "0.3.2-react16"]
   ;; for CIDER

src/airsonic_ui/config.cljs

@@ -1,4 +1,6 @@
 (ns airsonic-ui.config)
 
+(def server "https://londe.arnes.space")
+
 (def debug?
   ^boolean goog.DEBUG)

src/airsonic_ui/core.cljs

@@ -1,6 +1,7 @@
 (ns airsonic-ui.core
   (:require [reagent.core :as reagent]
             [re-frame.core :as re-frame]
+            [day8.re-frame.http-fx]
             [airsonic-ui.events :as events]
             [airsonic-ui.views :as views]
             [airsonic-ui.config :as config]))

src/airsonic_ui/db.cljs

@@ -1,4 +1,4 @@
 (ns airsonic-ui.db)
 
 (def default-db
-  {:name "re-frame"})
+  {:active-requests 0})

src/airsonic_ui/events.cljs

@@ -1,6 +1,44 @@
 (ns airsonic-ui.events
   (:require [re-frame.core :as re-frame]
-            [airsonic-ui.db :as db]))
+            [ajax.core :as ajax]
+            [airsonic-ui.config :as config]
+            [airsonic-ui.db :as db]
+            [clojure.string :as string]))
+
+(defn ^:private uri-escape [s]
+  (js/encodeURIComponent s))
+
+(defn api-url [endpoint params]
+  (let [query (->> (assoc params
+                          :f "json"
+                          :c "airsonic-ui-cljs"
+                          :v "1.15.0")
+                   (map (fn [[k v]]
+                          (str (uri-escape (name k)) "=" (uri-escape v))))
+                   (string/join "&"))]
+    (str config/server "/rest/" endpoint "?" query)))
+
+(re-frame/reg-event-fx
+ ::authenticate
+ (fn [{:keys [db]} [_ {:keys [user pass]}]]
+   {:db (update db :active-requests inc)
+    :http-xhrio {:method :get
+                 :uri (api-url "ping" {:u user :p pass})
+                 :response-format (ajax/text-response-format)
+                 :on-success [::auth-successful user pass]
+                 :on-failure [::auth-gone-bad]}}))
+
+(re-frame/reg-event-db
+ ::auth-successful
+ (fn [db [_ user pass]]
+   (-> (update db :active-requests dec)
+       (assoc :login {:u user
+                      :p pass}))))
+
+(re-frame/reg-event-db
+ ::auth-gone-bad
+ (fn [db event]
+   (println "auth gone bad" event)))
 
 (re-frame/reg-event-db
  ::initialize-db

src/airsonic_ui/subs.cljs

@@ -2,6 +2,6 @@
   (:require [re-frame.core :as re-frame]))
 
 (re-frame/reg-sub
- ::name
+ ::login
  (fn [db]
-   (:name db)))
+   (:login db)))

src/airsonic_ui/views.cljs

@@ -1,8 +1,28 @@
 (ns airsonic-ui.views
   (:require [re-frame.core :as re-frame]
-            [airsonic-ui.subs :as subs]
-            ))
+            [airsonic-ui.config :as config]
+            [airsonic-ui.subs :as subs]))
+
+(defn login-form []
+  [:form {:method "get"
+          :action config/server
+          :on-click #(js/alert "bang bang! TODO: implement login via form")}
+   [:div
+    [:span "User"]
+    [:input {:type "text" :name "user"}]]
+   [:div
+    [:span "Password"]
+    [:input {:type "password" :name "pass"}]]
+   [:div
+    [:input {:type "submit" :value "submit"}]]])
+
+(defn app [user]
+  [:div
+   [:h2 (str "Currently logged in as " user)]])
 
 (defn main-panel []
-  (let [name (re-frame/subscribe [::subs/name])]
-    [:div "Hello from " @name]))
+  [:div
+   [:h1 "Airsonic"]
+   (if-let [login @(re-frame/subscribe [::subs/login])]
+     [app (:u login)]
+     [login-form])])