Store preferences in cookies, add config defaults

src/routes/preferences.nim

@@ -16,9 +16,6 @@ proc findThemes*(dir: string): seq[string] =
 
 proc createPrefRouter*(cfg: Config) =
   router preferences:
-    template savePrefs(): untyped =
-      setCookie("preferences", $prefs.id, daysForward(360), httpOnly=true, secure=cfg.useHttps)
-
     get "/settings":
       let html = renderPreferences(cookiePrefs(), refPath(), findThemes(cfg.staticDir))
       resp renderMain(html, request, cfg, "Preferences")
@@ -27,27 +24,14 @@ proc createPrefRouter*(cfg: Config) =
       redirect("/settings")
 
     post "/saveprefs":
-      var prefs = cookiePrefs()
       genUpdatePrefs()
-      savePrefs()
       redirect(refPath())
 
     post "/resetprefs":
-      var prefs = cookiePrefs()
-      resetPrefs(prefs, cfg)
-      savePrefs()
+      genResetPrefs()
       redirect($(parseUri("/settings") ? filterParams(request.params)))
 
     post "/enablehls":
-      var prefs = cookiePrefs()
-      prefs.hlsPlayback = true
-      cache(prefs)
-      savePrefs()
+      savePref("hlsPlayback", "on", request)
       redirect(refPath())
 
-    before:
-      if @"theme".len > 0:
-        var prefs = cookiePrefs()
-        prefs.theme = @"theme".capitalizeAscii.replace("_", " ")
-        cache(prefs)
-        savePrefs()