Improvement: Add frontend, Many more improvements and small bugfixes

Bump to version 0.1.0

README.md

@@ -71,10 +71,11 @@ This feature has currently following issues/drawbacks:
    - TODO: what about locally run file?
    - TODO: test with multiple AMS
    - TODO: filament usage in external spool
- - Evidently needed GUI improvements
  - Code cleanup
  - Video showcase
  - Docker compose SSL
  - Logs
  - TODOs
- - Bambu Spools have apparently two RFID chips with two distinct UIDs so if you swap the filament to different tray it may fail, needs rework/testing
+ - Click to resolve issue
+ - More template components / less copy&paste
+ - Better Tray naming

__version__.py

@@ -1 +1 @@
-__version__ = '0.0.2'
+__version__ = '0.1.0'

app.py

@@ -2,19 +2,21 @@ import json
 import traceback
 import uuid
 
-from flask import Flask, request, render_template_string
+from flask import Flask, request, render_template, redirect, url_for
 
-from config import BASE_URL
+from config import BASE_URL, AUTO_SPEND
 from filament import generate_filament_brand_code, generate_filament_temperatures
+from frontend_utils import color_is_dark
 from messages import AMS_FILAMENT_SETTING
 from mqtt_bambulab import fetchSpools, getLastAMSConfig, publish, getMqttClient, setActiveTray
 from spoolman_client import patchExtraTags, getSpoolById
+from spoolman_service import augmentTrayDataWithSpoolMan, trayUid
 
 app = Flask(__name__)
 
-
 @app.route("/spool_info")
 def spool_info():
+  try:
     tag_id = request.args.get("tag_id")
 
     last_ams_config = getLastAMSConfig()
@@ -37,38 +39,11 @@ def spool_info():
         continue
       current_spool = spool
 
-  # Generate HTML for AMS selection
-  html = f"""
-    <h1>Spool information</h1>
-    """
-  if current_spool:
-    html += f"<p>Current Spool: {current_spool}</p>"
-  html += """
-    <h1>AMS</h1>
-    <ul>
-    """
-
-  for ams in ams_data:
-    html += f"<li>AMS {ams['id']} (Humidity: {ams['humidity']}%, Temp: {ams['temp']}°C)<ul>"
-    for tray in ams["tray"]:
-      tray_status = f"[{tray['tray_sub_brands']} {tray['tray_color']}]"
-      html += f"""
-            <li>
-                Tray {tray['id']} {tray_status} - Remaining: {tray['remain']}%
-                <a href="/tray_load?spool_id={current_spool['id']}&tag_id={tag_id}&ams={ams['id']}&tray={tray['id']}">Pick this tray</a>
-            </li>
-            """
-    html += "</ul></li>"
-  html += "</ul>"
-  html += f"""
-            <h1>External Spool</h1>
-            <ul>
-              <li>Tray {vt_tray_data['id']} [{vt_tray_data['tray_sub_brands']} {vt_tray_data['tray_color']}] - Remaining: {vt_tray_data['remain']}%
-                <a href="/tray_load?spool_id={current_spool['id']}&tag_id={tag_id}&ams={vt_tray_data['id']}&tray=255">Pick this tray</a></li>
-            </ul>
-          """
-
-  return render_template_string(html)
+    # TODO: missing current_spool
+    return render_template('spool_info.html', tag_id=tag_id, current_spool=current_spool, ams_data=ams_data, vt_tray_data=vt_tray_data, color_is_dark=color_is_dark, AUTO_SPEND=AUTO_SPEND)
+  except Exception as e:
+    traceback.print_exc()
+    return render_template('error.html', exception=str(e))
 
 
 @app.route("/tray_load")
@@ -116,65 +91,49 @@ def tray_load():
     print(ams_message)
     publish(getMqttClient(), ams_message)
 
-    return f"""
-        <h1>Success</h1>
-        <p>Updated Spool ID {spool_id} with TAG id {tag_id} to AMS {ams_id}, Tray {tray_id}.</p>
-        """
+    return redirect(url_for('home', success_message=f"Updated Spool ID {spool_id} with TAG id {tag_id} to AMS {ams_id}, Tray {tray_id}."))
   except Exception as e:
     traceback.print_exc()
-    return f"<h1>Error</h1><p>{str(e)}</p>"
+    return render_template('error.html', exception=str(e))
 
 
 @app.route("/")
 def home():
   try:
-    spools = fetchSpools()
-
     last_ams_config = getLastAMSConfig()
     ams_data = last_ams_config.get("ams", [])
     vt_tray_data = last_ams_config.get("vt_tray", {})
+    spool_list = fetchSpools()
+    success_message = request.args.get("success_message")
 
-    html = """
-      <h1>Current AMS Configuration</h1>
-      """
-    html += """
-    <h1>AMS</h1>
-    <ul>
-    """
+    issue = False
+    #TODO: recheck tray ID and external spool ID and extract it to constant
+    augmentTrayDataWithSpoolMan(spool_list, vt_tray_data, trayUid(vt_tray_data["id"], 255))
+    issue |= vt_tray_data["issue"]
 
     for ams in ams_data:
-      html += f"<li>AMS {ams['id']} (Humidity: {ams['humidity']}%, Temp: {ams['temp']}°C)<ul>"
       for tray in ams["tray"]:
-        tray_status = f"[{tray['tray_sub_brands']} {tray['tray_color']}]"
-        html += f"""
-              <li>
-                  Tray {tray['id']} {tray_status} - Remaining: {tray['remain']}%
-              </li>
-              """
-      html += "</ul></li>"
-    html += "</ul>"
-    html += f"""
-              <h1>External Spool</h1>
-              <ul>
-                <li>Tray {vt_tray_data['id']} [{vt_tray_data['tray_sub_brands']} {vt_tray_data['tray_color']}] - Remaining: {vt_tray_data['remain']}%</li>
-              </ul>
-            """
-    html += """  
-      <h1>Add new TAG</h1>
-      <ul>
-      """
-    for spool in spools:
-      if not spool.get("extra", {}).get("tag") or spool.get("extra", {}).get("tag") == json.dumps(""):
-        html += f"<li><a href='/assign_tag?spool_id={spool.get('id')}'>Spool {spool.get('filament').get('vendor').get('name')} - {spool.get('filament').get('name')}</a></li>"
-    html += "</ul>"
-    return html
+        augmentTrayDataWithSpoolMan(spool_list, tray, trayUid(ams["id"], tray["id"]))
+        issue |= tray["issue"]
+
+    return render_template('index.html', success_message=success_message, ams_data=ams_data, vt_tray_data=vt_tray_data, color_is_dark=color_is_dark, AUTO_SPEND=AUTO_SPEND, issue=issue)
   except Exception as e:
     traceback.print_exc()
-    return f"<h1>Error</h1><p>{str(e)}</p>"
-
+    return render_template('error.html', exception=str(e))
 
 @app.route("/assign_tag")
 def assign_tag():
+  try:
+    spools = fetchSpools()
+
+    return render_template('assign_tag.html', spools=spools)
+  except Exception as e:
+    traceback.print_exc()
+    return render_template('error.html', exception=str(e))
+
+@app.route("/write_tag")
+def write_tag():
+  try:
     spool_id = request.args.get("spool_id")
 
     if not spool_id:
@@ -185,32 +144,10 @@ def assign_tag():
     patchExtraTags(spool_id, {}, {
       "tag": json.dumps(myuuid),
     })
-
-  return f"""
-  <html>
-  <header>
-        <script type="text/javascript">
-        function writeNFC(){{
-          const ndef = new NDEFReader();
-          document.getElementById("message").textContent="Bring NFC Tag closer to the phone.";
-          ndef.write({{
-            records: [{{ recordType: "url", data: "{BASE_URL}/spool_info?tag_id={myuuid}" }}],
-          }}).then(() => {{
-            document.getElementById("message").textContent="Message written.";
-          }}).catch(error => {{
-            document.getElementById("message").textContent="Write failed :-( try again: " + error + ".";
-          }}); 
-        }};
-        </script>
-        </header>
-        <body>
-        NFC Write
-        <button id="write" onclick="writeNFC()">Write</button>
-        <h1 id="message"></h1>
-        </body>
-        </html>
-        """
-
+    return render_template('write_tag.html', myuuid=myuuid, BASE_URL=BASE_URL)
+  except Exception as e:
+    traceback.print_exc()
+    return render_template('error.html', exception=str(e))
 
 @app.route('/', methods=['GET'])
 def health():

frontend_utils.py

@@ -0,0 +1,23 @@
+def color_is_dark(bg_color):
+  # Remove '#' if present
+  color = bg_color[1:] if bg_color.startswith('#') else bg_color
+
+  # Extract RGB components
+  r = int(color[0:2], 16)  # Hex to R
+  g = int(color[2:4], 16)  # Hex to G
+  b = int(color[4:6], 16)  # Hex to B
+
+  # Convert RGB values to normalized UI colors
+  uicolors = [r / 255.0, g / 255.0, b / 255.0]
+
+  # Apply formula to calculate perceived luminance
+  c = [
+    col / 12.92 if col <= 0.03928 else ((col + 0.055) / 1.055) ** 2.4
+    for col in uicolors
+  ]
+
+  # Calculate luminance
+  luminance = (0.2126 * c[0]) + (0.7152 * c[1]) + (0.0722 * c[2])
+
+  # Return whether the color is considered "dark"
+  return luminance <= 0.179

mqtt_bambulab.py

@@ -7,12 +7,13 @@ import paho.mqtt.client as mqtt
 
 from config import PRINTER_ID, PRINTER_CODE, PRINTER_IP, AUTO_SPEND
 from messages import GET_VERSION, PUSH_ALL
-from spoolman_client import fetchSpoolList, patchExtraTags, consumeSpool
+from spoolman_service import spendFilaments, setActiveTray, fetchSpools
 from tools_3mf import getFilamentsUsageFrom3mf
 
 MQTT_CLIENT = {}  # Global variable storing MQTT Client
 LAST_AMS_CONFIG = {}  # Global variable storing last AMS configuration
 
+
 def num2letter(num):
   return chr(ord("A") + int(num))
 
@@ -28,23 +29,6 @@ def publish(client, msg):
   return False
 
 
-
-def spendFilaments(filaments_usage):
-  print(filaments_usage)
-  ams_usage = {}
-  for tray_id, usage in filaments_usage:
-    if tray_id != -1:
-      #TODO: hardcoded ams_id
-      if ams_usage.get(f"{PRINTER_ID}_0_{tray_id}"):
-        ams_usage[f"{PRINTER_ID}_0_{tray_id}"] += float(usage)
-      else:
-        ams_usage[f"{PRINTER_ID}_0_{tray_id}"] = float(usage)
-
-  for spool in fetchSpools():
-    #TODO: What if there is a mismatch between AMS and SpoolMan?
-    if spool.get("extra") and spool.get("extra").get("active_tray") and ams_usage.get(json.loads(spool.get("extra").get("active_tray"))):
-      consumeSpool(spool["id"], ams_usage.get(json.loads(spool.get("extra").get("active_tray"))))
-
 # Inspired by https://github.com/Donkie/Spoolman/issues/217#issuecomment-2303022970
 def on_message(client, userdata, msg):
   global LAST_AMS_CONFIG
@@ -53,7 +37,8 @@ def on_message(client, userdata, msg):
     #print(data)
     if AUTO_SPEND:
       # Prepare AMS spending estimation
-      if "print" in data and "command" in data["print"] and data["print"]["command"] == "project_file" and "url" in data["print"]:
+      if "print" in data and "command" in data["print"] and data["print"]["command"] == "project_file" and "url" in \
+          data["print"]:
         expected_filaments_usage = getFilamentsUsageFrom3mf(data["print"]["url"])
         ams_used = data["print"]["use_ams"]
         ams_mapping = data["print"]["ams_mapping"]
@@ -72,14 +57,14 @@ def on_message(client, userdata, msg):
         for tray in ams["tray"]:
           if "tray_sub_brands" in tray:
             print(
-                f"    - [{num2letter(ams['id'])}{tray['id']}] {tray['tray_sub_brands']} {tray['tray_color']} ({str(tray['remain']).zfill(3)}%) [[ {tray['tag_uid']} ]]")
+                f"    - [{num2letter(ams['id'])}{tray['id']}] {tray['tray_sub_brands']} {tray['tray_color']} ({str(tray['remain']).zfill(3)}%) [[ {tray['tray_uuid']} ]]")
 
             found = False
-            for spool in SPOOLS:
+            for spool in fetchSpools(True):
               if not spool.get("extra", {}).get("tag"):
                 continue
               tag = json.loads(spool["extra"]["tag"])
-              if tag != tray["tag_uid"]:
+              if tag != tray["tray_uuid"]:
                 continue
 
               found = True
@@ -103,33 +88,6 @@ def on_connect(client, userdata, flags, rc):
   publish(client, GET_VERSION)
   publish(client, PUSH_ALL)
 
-
-def setActiveTray(spool_id, spool_extra, ams_id, tray_id):
-  if spool_extra == None:
-    spool_extra = {}
-
-  if not spool_extra.get("active_tray") or spool_extra.get("active_tray") != json.dumps(
-      f"{PRINTER_ID}_{ams_id}_{tray_id}"):
-    patchExtraTags(spool_id, spool_extra, {
-      "active_tray": json.dumps(f"{PRINTER_ID}_{ams_id}_{tray_id}"),
-    })
-
-    # Remove active tray from inactive spools
-    for old_spool in SPOOLS:
-      if spool_id != old_spool["id"] and old_spool["extra"]["active_tray"] == json.dumps(
-          f"{PRINTER_ID}_{ams_id}_{tray_id}"):
-        patchExtraTags(old_spool["id"], old_spool["extra"], {"active_tray": json.dumps("")})
-  else:
-    print("Skipping set active tray")
-
-
-# Fetch spools from spoolman
-def fetchSpools():
-  global SPOOLS
-  SPOOLS = fetchSpoolList()
-  return SPOOLS
-
-
 def async_subscribe():
   global MQTT_CLIENT
   MQTT_CLIENT = mqtt.Client()
@@ -158,6 +116,3 @@ def getLastAMSConfig():
 def getMqttClient():
   global MQTT_CLIENT
   return MQTT_CLIENT
-
-
-SPOOLS = fetchSpools()  # Global variable storing latest spool from spoolman

spoolman_service.py

@@ -0,0 +1,62 @@
+from config import PRINTER_ID
+import json
+
+from spoolman_client import consumeSpool, patchExtraTags, fetchSpoolList
+
+def trayUid(ams_id, tray_id):
+  return f"{PRINTER_ID}_{ams_id}_{tray_id}"
+
+def augmentTrayDataWithSpoolMan(spool_list, tray_data, tray_id):
+  tray_data["matched"] = False
+  for spool in spool_list:
+    if spool.get("extra") and spool["extra"].get("active_tray") and spool["extra"]["active_tray"] == json.dumps(tray_id):
+      #TODO: check for mismatch
+      tray_data["remaining_weight"] = spool["remaining_weight"]
+      tray_data["matched"] = True
+      break
+
+  if tray_data.get("tray_type") and tray_data["tray_type"] != "" and tray_data["matched"] == False:
+    tray_data["issue"] = True
+  else:
+    tray_data["issue"] = False
+
+def spendFilaments(filaments_usage):
+  print(filaments_usage)
+  ams_usage = {}
+  for tray_id, usage in filaments_usage:
+    if tray_id != -1:
+      #TODO: hardcoded ams_id
+      if ams_usage.get(trayUid(0, tray_id)):
+        ams_usage[trayUid(0, tray_id)] += float(usage)
+      else:
+        ams_usage[trayUid(0, tray_id)] = float(usage)
+
+  for spool in fetchSpools():
+    #TODO: What if there is a mismatch between AMS and SpoolMan?
+    if spool.get("extra") and spool.get("extra").get("active_tray") and ams_usage.get(json.loads(spool.get("extra").get("active_tray"))):
+      consumeSpool(spool["id"], ams_usage.get(json.loads(spool.get("extra").get("active_tray"))))
+
+def setActiveTray(spool_id, spool_extra, ams_id, tray_id):
+  if spool_extra == None:
+    spool_extra = {}
+
+  if not spool_extra.get("active_tray") or json.loads(spool_extra.get("active_tray")) != trayUid(ams_id, tray_id):
+    patchExtraTags(spool_id, spool_extra, {
+      "active_tray": json.dumps(trayUid(ams_id, tray_id)),
+    })
+
+    # Remove active tray from inactive spools
+    for old_spool in fetchSpools(cached=True):
+      if spool_id != old_spool["id"] and old_spool.get("extra") and old_spool["extra"].get("active_tray") and json.loads(old_spool["extra"]["active_tray"]) == trayUid(ams_id, tray_id):
+        patchExtraTags(old_spool["id"], old_spool["extra"], {"active_tray": json.dumps("")})
+  else:
+    print("Skipping set active tray")
+
+# Fetch spools from spoolman
+def fetchSpools(cached=False):
+  global SPOOLS
+  if not cached:
+    SPOOLS = fetchSpoolList()
+  return SPOOLS
+
+SPOOLS = fetchSpools()  # Global variable storing latest spool from spoolman

templates/assign_tag.html

@@ -0,0 +1,72 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<!-- Page Title -->
+<h1 class="mb-4 text-center">Assign NFC Tag to Spool</h1>
+
+<!-- Empty State -->
+{% if spools|length == 0 or not spools %}
+<div class="alert alert-info text-center" role="alert">
+  No spools available to tag at the moment.
+</div>
+{% else %}
+
+<!-- Spool List -->
+<div class="list-group">
+  {% for spool in spools %}
+  {% if not spool.extra.get("tag") or spool.extra.get("tag") == "null" %}
+  <!-- Individual Spool Item -->
+  <a href="{{ url_for('write_tag', spool_id=spool.id) }}"
+     class="list-group-item list-group-item-action d-flex justify-content-between align-items-center">
+
+    <!-- Left: Filament Color Badge -->
+    <div class="me-3">
+        <span class="badge d-inline-block"
+              style="background-color: #{{ spool.filament.color_hex }}; width: 20px; height: 50px;">
+        </span>
+    </div>
+
+    <!-- Middle: Filament Details -->
+    <div class="flex-grow-1">
+      <!-- Vendor Name and Material (Row 1) -->
+      <h6 class="mb-0">{{ spool.filament.vendor.name }} - {{ spool.filament.material }}</h6>
+      <!-- Filament Name (Row 2) -->
+      <small class="text-muted">{{ spool.filament.name }}</small>
+    </div>
+
+    <!-- Action Icon -->
+    <span class="badge bg-primary rounded-pill">
+                <i class="bi bi-plus-circle"></i> Assign
+            </span>
+  </a>
+  {% endif %}
+  {% endfor %}
+  {% for spool in spools %}
+  {% if spool.extra.get("tag") %}
+  <!-- Individual Spool Item -->
+  <a href="{{ url_for('write_tag', spool_id=spool.id) }}"
+     class="list-group-item list-group-item-action d-flex justify-content-between align-items-center">
+    <!-- Left: Filament Color Badge -->
+    <div class="me-3">
+        <span class="badge d-inline-block"
+              style="background-color: #{{ spool.filament.color_hex }}; width: 20px; height: 50px;">
+        </span>
+    </div>
+
+    <!-- Middle: Filament Details -->
+    <div class="flex-grow-1">
+      <!-- Vendor Name and Material (Row 1) -->
+      <h6 class="mb-0">{{ spool.filament.vendor.name }} - {{ spool.filament.material }}</h6>
+      <!-- Filament Name (Row 2) -->
+      <small class="text-muted">{{ spool.filament.name }}</small>
+    </div>
+    <!-- Action Icon -->
+    <span class="badge bg-secondary rounded-pill">
+                <i class="bi bi-plus-circle"></i> Reassign
+            </span>
+  </a>
+  {% endif %}
+  {% endfor %}
+</div>
+{% endif %}
+{% endblock %}

templates/base.html

@@ -0,0 +1,72 @@
+<!DOCTYPE html>
+<html lang="en" data-bs-theme="auto">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+  <title>OpenSpoolMan</title>
+  <link rel="icon" href="{{ url_for('static', filename='favicon.ico') }}">
+  <link href="{{ url_for('static', filename='css/bootstrap.min.css') }}" rel="stylesheet">
+  <link href="{{ url_for('static', filename='css/bootstrap-icons.css') }}" rel="stylesheet">
+  <style>
+    .bi {
+      vertical-align: -.125em;
+      fill: currentColor;
+    }
+
+    .bd-mode-toggle .dropdown-menu .active .bi {
+      display: block !important;
+    }
+  </style>
+</head>
+<body>
+<header class="p-1 mb-3 border-bottom">
+  <div class="container">
+    <div class="d-flex flex-wrap align-items-center justify-content-center justify-content-lg-start">
+      <a href="{{ url_for('home') }}" class="d-flex align-items-center mb-2 mb-lg-0 link-body-emphasis text-decoration-none">
+        <img width="40" height="40" alt="OpenSpoolMan Logo" src="{{ url_for('static', filename='logo.png') }}"/>
+      </a>
+      <ul class="nav col-12 col-lg-auto me-lg-auto mb-2 justify-content-center mb-md-0">
+        <li><a href="{{ url_for('home') }}" class="nav-link px-2 link-body-emphasis">Home</a></li>
+        <li><a href="{{ url_for('assign_tag') }}" class="nav-link px-2 link-body-emphasis">Assign NFC Tag</a></li>
+      </ul>
+    </div>
+  </div>
+</header>
+
+<main class="container">
+  {% if success_message %}
+  <div class="alert alert-success alert-dismissible fade show" role="alert">
+    <strong>Success!</strong> {{ success_message }}
+    <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+  </div>
+  {% endif %}
+  {% block content %}{% endblock %}
+</main>
+
+<div class="container">
+  <footer class="d-flex flex-wrap justify-content-between align-items-center py-3 my-4 border-top">
+    <ul class="nav col-md-12 justify-content-end list-unstyled d-flex">
+      <li class="ms-3"><a class="link-body-emphasis" href="https://github.com/drndos/openspoolman">
+        <i class="bi bi-github"></i>
+      </a></li>
+    </ul>
+  </footer>
+</div>
+
+<script src="{{ url_for('static', filename='js/bootstrap.min.js') }}"></script>
+<script>
+  ;(function () {
+    const htmlElement = document.querySelector("html")
+    if (htmlElement.getAttribute("data-bs-theme") === 'auto') {
+      function updateTheme() {
+        document.querySelector("html").setAttribute("data-bs-theme",
+            window.matchMedia("(prefers-color-scheme: dark)").matches ? "dark" : "light")
+      }
+
+      window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', updateTheme)
+      updateTheme()
+    }
+  })()
+</script>
+</body>
+</html>

templates/error.html

@@ -0,0 +1,6 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<h1>Error</h1>
+<p>{{ exception }}</p>
+{% endblock %}

templates/index.html

@@ -0,0 +1,138 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<h1 class="mb-4">Info</h1>
+{% if issue %}
+<div class="card border-warning shadow-sm mb-4">
+  <div class="card-header bg-warning text-dark fw-bold">
+    Warning
+  </div>
+  <div class="card-body">
+    <h5 class="card-title">There is a mismatch between printer and SpoolMan</h5>
+    <p class="card-text">TODO: To fix the issue click on the tray with the red exclamation mark <i class="bi bi-exclamation-circle text-danger me-2"></i></p>
+  </div>
+</div>
+{% endif %}
+<!-- AMS and External Spool Row -->
+<div class="row">
+  <!-- External Spool -->
+  <div class="col-md-2 mb-4">
+    <div class="card shadow-sm">
+      <div class="card-header">
+        <h5 class="mb-0">External Spool</h5>
+      </div>
+      <div class="card-body text-center">
+        <!-- Tray ID -->
+        <h6 class="text-uppercase mb-1">
+          {% if vt_tray_data.issue %}
+          <i class="bi bi-exclamation-circle text-danger me-2"></i>
+          {% endif %}
+          {% if not vt_tray_data.tray_type %}
+          Empty
+          {% endif %}
+          Tray {{ vt_tray_data.id }}
+        </h6>
+
+        <!-- Tray Sub-Brand and Type -->
+        <div class="small text-muted mb-2">
+          {{ vt_tray_data.tray_type }}
+          {% if vt_tray_data.tray_sub_brands %}
+          <br/>
+          {{ vt_tray_data.tray_sub_brands }}
+          {% endif %}
+        </div>
+
+        <!-- Badge with Dynamic Colors -->
+        <span class="badge d-inline-block p-2"
+              style="background-color: #{{ vt_tray_data.tray_color }};
+                     color: {% if color_is_dark(vt_tray_data.tray_color) %}#FFFFFF{% else %}#000000{% endif %}">
+                        #{{ vt_tray_data.tray_color | upper }}
+                    </span>
+
+        <!-- Remaining Percentage -->
+        <div class="mt-2">
+          Remaining:
+          {% if AUTO_SPEND and vt_tray_data.matched %}
+          <span class="fw-bold">{{ vt_tray_data.remaining_weight|round }}g</span>
+          {% else %}
+          <span class="fw-bold">{{ vt_tray_data.remain }}%</span>
+          {% endif %}
+        </div>
+      </div>
+    </div>
+  </div>
+  {% for ams in ams_data %}
+  <div class="col-md-4 mb-4">
+    <div class="card shadow-sm">
+      <div class="card-header d-flex justify-content-between align-items-center">
+        <h5 class="mb-0">AMS {{ ams.id }}</h5>
+        <span class="text-muted small">Humidity: {{ ams.humidity }}%, Temp: {{ ams.temp }}°C</span>
+      </div>
+      <div class="card-body">
+        <div class="row">
+          {% for tray in ams.tray %}
+          <div class="col-6 mb-3">
+            <div class="border rounded p-2 text-center">
+              <!-- Tray ID -->
+              <h6 class="text-uppercase mb-1">
+                {% if tray.issue %}
+                <i class="bi bi-exclamation-circle text-danger me-2"></i>
+                {% endif %}
+                {% if not tray.tray_type %}
+                Empty
+                {% endif %}
+                Tray {{ tray.id }}
+              </h6>
+
+              <!-- Tray Sub-Brand and Type -->
+              <div class="small text-muted mb-2">
+                {{ tray.tray_type }}
+                {% if tray.tray_sub_brands %}
+                <br/>
+                {{ tray.tray_sub_brands }}
+                {% endif %}
+              </div>
+
+              {% if tray.tray_color %}
+              <!-- Badge with Dynamic Colors -->
+              <span class="badge d-inline-block p-2"
+                    style="background-color: #{{ tray.tray_color }};
+                     color: {% if color_is_dark(tray.tray_color) %}#FFFFFF{% else %}#000000{% endif %}">
+                                    #{{ tray.tray_color | upper }}
+                                </span>
+              {% endif %}
+
+              <!-- Remaining Percentage -->
+              <div class="mt-2">
+                Remaining:
+                {% if AUTO_SPEND and tray.matched %}
+                  <span class="fw-bold">{{ tray.remaining_weight|round }}g</span>
+                {% else %}
+                  <span class="fw-bold">{{ tray.remain }}%</span>
+                {% endif %}
+              </div>
+            </div>
+          </div>
+          {% endfor %}
+        </div>
+      </div>
+    </div>
+  </div>
+  {% endfor %}
+</div>
+
+<!-- Instruction Section -->
+<div class="card shadow-sm mb-4">
+  <div class="card-body">
+    <h5 class="card-title mb-3">
+      <i class="bi bi-info-circle text-info me-2"></i> Instructions
+    </h5>
+    <ul class="list-unstyled">
+      <li>Assign NFC Tags to your spools
+      </li>
+      <li>Load the spool with NFC tag to your AMS and bring your phone close to the NFC tag, open the URL.</li>
+      <li>Choose the tray you just put the spool in.</li>
+    </ul>
+  </div>
+</div>
+{% endblock %}

templates/spool_info.html

@@ -0,0 +1,144 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<h1 class="mb-4">Spool Info</h1>
+<div class="card mb-3 shadow-sm">
+  <div class="card-header fw-bold">
+    Spool Details
+  </div>
+  <div class="card-body">
+    <!-- Filament Color Badge and Name -->
+    <div class="d-flex align-items-start mb-3">
+      <div class="me-3">
+                <span class="badge d-inline-block"
+                      style="background-color: #{{ current_spool.filament.color_hex }}; width: 40px; height: 40px; border-radius: 5px;">
+                </span>
+      </div>
+      <div>
+        <h5 class="card-title mb-0">{{ current_spool.filament.name }} - {{ current_spool.filament.material }}</h5>
+        <small class="text-muted">{{ current_spool.filament.vendor.name }}</small>
+      </div>
+    </div>
+
+    <!-- Filament Details -->
+    <div class="row mb-2">
+      <div class="col-6">
+        <p class="mb-1"><strong>Remaining Weight:</strong> {{ current_spool.remaining_weight|round(2) }}g</p>
+        <p class="mb-1"><strong>Remaining Length:</strong> {{ current_spool.remaining_length|round(0) }}mm</p>
+      </div>
+      <div class="col-6">
+        <p class="mb-1"><strong>Nozzle Temp:</strong> {{ current_spool.filament.extra.nozzle_temperature }}</p>
+      </div>
+    </div>
+  </div>
+  <div class="card-footer text-muted">
+    <small>Registered: {{ current_spool.registered }} | Last Used: {{ current_spool.last_used }}</small>
+  </div>
+</div>
+<h1 class="mb-4">Pick Tray</h1>
+<!-- AMS and External Spool Row -->
+<div class="row">
+  <!-- External Spool -->
+  <div class="col-md-2 mb-4">
+    <div class="card shadow-sm">
+      <div class="card-header">
+        <h5 class="mb-0">External Spool</h5>
+      </div>
+      <div class="card-body text-center">
+        <div class="card">
+          <!-- Tray ID -->
+          <div class="card-header d-flex justify-content-between align-items-center">
+            {% if vt_tray_data.issue %}
+            <i class="bi bi-exclamation-circle text-danger me-2"></i>
+            {% endif %}
+            {% if not vt_tray_data.tray_type %}
+            Empty
+            {% endif %}
+            Tray {{ vt_tray_data.id }}
+          </div>
+
+          <div class="card-body">
+            <!-- Tray Sub-Brand and Type -->
+            <div class="small text-muted mb-2">
+              {{ vt_tray_data.tray_type }}
+              {% if vt_tray_data.tray_sub_brands %}
+              <br/>
+              {{ vt_tray_data.tray_sub_brands }}
+              {% endif %}
+            </div>
+
+            <!-- Badge with Dynamic Colors -->
+            <span class="badge d-inline-block p-2"
+                  style="background-color: #{{ vt_tray_data.tray_color }};
+                     color: {% if color_is_dark(vt_tray_data.tray_color) %}#FFFFFF{% else %}#000000{% endif %}">
+                        #{{ vt_tray_data.tray_color | upper }}
+                    </span>
+
+          </div>
+          <div class="card-footer">
+            <a class="btn btn-primary"
+               href="{{ url_for('tray_load', spool_id=current_spool['id'], tag_id=tag_id,ams=vt_tray_data['id'], tray='255') }}">Pick
+              this tray</a>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+  {% for ams in ams_data %}
+  <div class="col-md-4 mb-4">
+    <div class="card shadow-sm">
+      <div class="card-header d-flex justify-content-between align-items-center">
+        <h5 class="mb-0">AMS {{ ams.id }}</h5>
+        <span class="text-muted small">Humidity: {{ ams.humidity }}%, Temp: {{ ams.temp }}°C</span>
+      </div>
+      <div class="card-body">
+        <div class="row">
+          {% for tray in ams.tray %}
+          <div class="col-6 mb-3">
+            <div class="card">
+              <!-- Tray ID -->
+              <div class="card-header d-flex justify-content-between align-items-center">
+                {% if tray.issue %}
+                <i class="bi bi-exclamation-circle text-danger me-2"></i>
+                {% endif %}
+                {% if not tray.tray_type %}
+                Empty
+                {% endif %}
+                Tray {{ tray.id }}
+              </div>
+              <div class="card-body">
+                <!-- Tray Sub-Brand and Type -->
+                <div class="small text-muted mb-2">
+                  {{ tray.tray_type }}
+                  {% if tray.tray_sub_brands %}
+                  <br/>
+                  {{ tray.tray_sub_brands }}
+                  {% endif %}
+                </div>
+
+                {% if tray.tray_color %}
+                <!-- Badge with Dynamic Colors -->
+                <span class="badge d-inline-block p-2"
+                      style="background-color: #{{ tray.tray_color }};
+                     color: {% if color_is_dark(tray.tray_color) %}#FFFFFF{% else %}#000000{% endif %}">
+                                    #{{ tray.tray_color | upper }}
+                                </span>
+                {% endif %}
+
+              </div>
+              <div class="card-footer">
+                <a class="btn btn-primary"
+                   href="{{ url_for('tray_load', spool_id=current_spool['id'], tag_id=tag_id,ams=ams['id'], tray=tray['id']) }}">Pick
+                  this tray</a>
+              </div>
+            </div>
+          </div>
+          {% endfor %}
+        </div>
+      </div>
+    </div>
+  </div>
+  {% endfor %}
+</div>
+
+{% endblock %}

templates/write_tag.html

@@ -0,0 +1,62 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<!-- Page Title -->
+<div class="text-center mb-4">
+  <h1 class="fw-bold">NFC Write Process</h1>
+  <p class="text-muted">Follow the steps below to write data to your NFC tag.</p>
+</div>
+
+<!-- Instruction Section -->
+<div class="card shadow-sm mb-4">
+  <div class="card-body">
+    <h5 class="card-title mb-3">
+      <i class="bi bi-info-circle text-info me-2"></i> Instructions
+    </h5>
+    <ul class="list-unstyled">
+      <li><i class="bi bi-check-circle-fill text-success me-2"></i> Attach NFC tag to spool so you can reach it with the
+        top of your phone.
+      </li>
+      <li><i class="bi bi-wifi text-primary me-2"></i> Allow NFC usage if prompted.</li>
+      <li><i class="bi bi-phone text-secondary me-2"></i> Bring the tag close to your phone when prompted.</li>
+    </ul>
+  </div>
+</div>
+
+<!-- Action Button -->
+<div class="text-center mb-3">
+  <button id="write" class="btn btn-lg btn-primary shadow" onclick="writeNFC()">
+    <i class="bi bi-nfc me-2"></i> Start Writing NFC Tag
+  </button>
+</div>
+
+<!-- Message Display -->
+<div id="message" class="alert alert-secondary text-center" role="alert">
+  Press "Start Writing NFC Tag" to begin.
+</div>
+
+<script type="text/javascript">
+  function writeNFC() {
+    // Update user message
+    const messageBox = document.getElementById("message");
+    messageBox.className = "alert alert-info text-center";
+    messageBox.textContent = "Bring NFC Tag closer to the phone...";
+    if ('NDEFReader' in window) {
+      const ndef = new NDEFReader();
+      // Attempt to write the NFC tag
+      ndef.write({
+        records: [{recordType: "url", data: "{{ BASE_URL }}/spool_info?tag_id={{ myuuid }}"}],
+      }).then(() => {
+        messageBox.className = "alert alert-success text-center";
+        messageBox.textContent = "✅ Message successfully written to the NFC tag!";
+      }).catch(error => {
+        messageBox.className = "alert alert-danger text-center";
+        messageBox.textContent = "❌ Write failed. Please try again: " + error;
+      });
+    } else {
+      messageBox.className = "alert alert-danger text-center";
+      messageBox.textContent = "Your browser or device does not support NFC writing. Try Android Phone with Chrome browser.";
+    }
+  }
+</script>
+{% endblock %}