render inputs in code, not in html

htdocs/admin.html

@@ -17,39 +17,7 @@ ${header}
         <h3 class="settings-header">
             General Settings
         </h3>
-        <form class="settings-body">
-            <div class="form-group row">
-                <label class="col-form-label col-form-label-sm col-3" for="receiver_name">Receiver name</label>
-                <input type="text" class="form-control form-control-sm col-9" id="receiver_name" name="receiver_name" placeholder="Receiver name">
-            </div>
-            <div class="form-group row">
-                <label class="col-form-label col-form-label-sm col-3" for="receiver_location">Receiver location</label>
-                <input type="text" class="form-control form-control-sm col-9" id="receiver_location" name="receiver_location" placeholder="Receiver location">
-            </div>
-            <div class="form-group row">
-                <label class="col-form-label col-form-label-sm col-3" for="receiver_asl">Receiver elevation</label>
-                <div class="col-9 p-0">
-                    <input type="text" class="form-control form-control-sm" id="receiver_asl" name="receiver_asl" placeholder="Receiver elevation">
-                    <small class="form-text text-muted">Elevation in meters above mean see level</small>
-                </div>
-            </div>
-            <div class="form-group row">
-                <label class="col-form-label col-form-label-sm col-3" for="receiver_admin">Receiver admin</label>
-                <input type="text" class="form-control form-control-sm col-9" id="receiver_admin" name="receiver_admin" placeholder="Receiver admin">
-            </div>
-            <div class="form-group row">
-                <label class="col-form-label col-form-label-sm col-3" for="receiver_gps">Receiver coordinates</label>
-                <div class="col-9">Placeholder for a map widget to select receiver location</div>
-            </div>
-            <div class="form-group row">
-                <label class="col-form-label col-form-label-sm col-3" for="photo_title">Photo title</label>
-                <input type="text" class="form-control form-control-sm col-9" id="photo_title" name="photo_title" placeholder="Photo title">
-            </div>
-            <div class="form-group row">
-                <label class="col-form-label col-form-label-sm col-3" for="photo_desc">Photo description</label>
-                <textarea class="form-control form-control-sm col-9" id="photo_desc" name="photo_desc"></textarea>
-            </div>
-        </form>
+        ${form}
     </div>
 </div>
 </body>

owrx/controllers/admin.py

@@ -20,6 +20,3 @@ class AdminController(WebpageController):
             super().handle_request()
         else:
             self.send_redirect("/login")
-
-    def indexAction(self):
-        self.serve_template("admin.html", **self.template_variables())

owrx/controllers/settings.py

@@ -0,0 +1,75 @@
+from abc import ABC, abstractmethod
+from .admin import AdminController
+
+
+class Input(ABC):
+    def __init__(self, id, label, infotext=None):
+        self.id = id
+        self.label = label
+        self.infotext = infotext
+
+    def bootstrap_decorate(self, input):
+        infotext = "<small>{text}</small>".format(text=self.infotext) if self.infotext else ""
+        return """
+            <div class="form-group row">
+                <label class="col-form-label col-form-label-sm col-3" for="{id}">{label}</label>
+                <div class="col-9 p-0">
+                    {input}
+                    {infotext}
+                </div>
+            </div>
+        """.format(id=self.id, label=self.label, input=input, infotext=infotext)
+
+    def input_classes(self):
+        return " ".join(["form-control", "form-control-sm"])
+
+    @abstractmethod
+    def render_input(self):
+        pass
+
+    def render(self):
+        return self.bootstrap_decorate(self.render_input())
+
+
+class TextInput(Input):
+    def render_input(self):
+        return """
+            <input type="text" class="{classes}" id="{id}" name="{id}" placeholder="{label}">
+        """.format(id=self.id, label=self.label, classes=self.input_classes())
+
+
+class LocationInput(Input):
+    def render_input(self):
+        # TODO make this work and pretty
+        return "Placeholder for a map widget to select receiver location"
+
+
+class TextAreaInput(Input):
+    def render_input(self):
+        return """
+            <textarea class="{classes}" id="{id}" name="{id}"></textarea>
+        """.format(id=self.id, classes=self.input_classes())
+
+
+class SettingsController(AdminController):
+    inputs = [
+        TextInput("receiver_name", "Receiver name"),
+        TextInput("receiver_location", "Receiver location"),
+        TextInput("receiver_asl", "Receiver elevation", infotext="Elevation in meters above mean see level"),
+        TextInput("receiver_admin", "Receiver admin"),
+        LocationInput("receiver_gps", "Receiver coordinates"),
+        TextInput("photo_title", "Photo title"),
+        TextAreaInput("photo_desc", "Photo description")
+    ]
+
+    def indexAction(self):
+        self.serve_template("admin.html", **self.template_variables())
+
+    def render_form(self):
+        inputs = "".join([i.render() for i in SettingsController.inputs])
+        return "<form class=\"settings-body\">{inputs}</form>".format(inputs=inputs)
+
+    def template_variables(self):
+        variables = super().template_variables()
+        variables["form"] = self.render_form()
+        return variables

owrx/http.py

@@ -11,7 +11,7 @@ from owrx.controllers.assets import (
 from owrx.controllers.websocket import WebSocketController
 from owrx.controllers.api import ApiController
 from owrx.controllers.metrics import MetricsController
-from owrx.controllers.admin import AdminController
+from owrx.controllers.settings import SettingsController
 from owrx.controllers.session import SessionController
 from http.server import BaseHTTPRequestHandler
 from urllib.parse import urlparse, parse_qs
@@ -100,7 +100,7 @@ class Router(object):
             StaticRoute("/features", FeatureController),
             StaticRoute("/api/features", ApiController),
             StaticRoute("/metrics", MetricsController),
-            StaticRoute("/admin", AdminController),
+            StaticRoute("/admin", SettingsController),
             StaticRoute("/login", SessionController, options={"action": "loginAction"}),
             StaticRoute("/login", SessionController, method="POST", options={"action": "processLoginAction"}),
             StaticRoute("/logout", SessionController, options={"action": "logoutAction"}),