From 64605b38bb926f2bb57f122b248b0b3e748d9c9d Mon Sep 17 00:00:00 2001
From: Matt <matt@echo6.co>
Date: Tue, 21 Apr 2026 00:52:04 +0000
Subject: [PATCH] Add TomTom traffic proxy and update profiles for
 hillshade/traffic layers

- Add /api/traffic/flow proxy route to hide TomTom API key from frontend
- Add tileset_hillshade and traffic config blocks to all three profiles
- Flip has_hillshade and has_traffic_overlay flags in home and regional profiles
- Minimal profile has config blocks but flags remain false (dormant)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 config/profiles/home.yaml        | 13 +++++++++++--
 config/profiles/minimal_pi.yaml  |  9 +++++++++
 config/profiles/regional_pi.yaml | 11 ++++++++++-
 lib/api.py                       | 22 +++++++++++++++++++++-
 4 files changed, 51 insertions(+), 4 deletions(-)

diff --git a/config/profiles/home.yaml b/config/profiles/home.yaml
index e4eb3de..49dc373 100644
--- a/config/profiles/home.yaml
+++ b/config/profiles/home.yaml
@@ -11,6 +11,15 @@ tileset:
   max_zoom: 15
   attribution: "Protomaps © OSM"
 
+tileset_hillshade:
+  url: "/tiles/hillshade-na.pmtiles"
+  encoding: "terrarium"
+  max_zoom: 12
+
+traffic:
+  provider: "tomtom"
+  proxy_url: "/api/traffic/flow/{z}/{x}/{y}.png"
+
 services:
   geocode: "/api/geocode"
   reverse: "/api/reverse"
@@ -20,9 +29,9 @@ services:
 features:
   has_nominatim_details: false
   has_kiwix_wiki: false
-  has_hillshade: false
+  has_hillshade: true
   has_3d_terrain: false
-  has_traffic_overlay: false
+  has_traffic_overlay: true
   has_landclass: false
   has_address_book_write: false
 
diff --git a/config/profiles/minimal_pi.yaml b/config/profiles/minimal_pi.yaml
index 5e26b59..e4fe651 100644
--- a/config/profiles/minimal_pi.yaml
+++ b/config/profiles/minimal_pi.yaml
@@ -11,6 +11,15 @@ tileset:
   max_zoom: 15
   attribution: "Protomaps © OSM"
 
+tileset_hillshade:
+  url: "/tiles/hillshade-idaho.pmtiles"
+  encoding: "terrarium"
+  max_zoom: 12
+
+traffic:
+  provider: "tomtom"
+  proxy_url: "/api/traffic/flow/{z}/{x}/{y}.png"
+
 services:
   geocode: "/api/geocode"
   reverse: "/api/reverse"
diff --git a/config/profiles/regional_pi.yaml b/config/profiles/regional_pi.yaml
index e2b469c..89d56f3 100644
--- a/config/profiles/regional_pi.yaml
+++ b/config/profiles/regional_pi.yaml
@@ -11,6 +11,15 @@ tileset:
   max_zoom: 15
   attribution: "Protomaps © OSM"
 
+tileset_hillshade:
+  url: "/tiles/hillshade-regional.pmtiles"
+  encoding: "terrarium"
+  max_zoom: 12
+
+traffic:
+  provider: "tomtom"
+  proxy_url: "/api/traffic/flow/{z}/{x}/{y}.png"
+
 services:
   geocode: "/api/geocode"
   reverse: "/api/reverse"
@@ -22,7 +31,7 @@ features:
   has_kiwix_wiki: false
   has_hillshade: true
   has_3d_terrain: false
-  has_traffic_overlay: false
+  has_traffic_overlay: true
   has_landclass: true
   has_address_book_write: true
 
diff --git a/lib/api.py b/lib/api.py
index 297a680..5a72889 100644
--- a/lib/api.py
+++ b/lib/api.py
@@ -17,7 +17,7 @@ import shutil
 import tempfile
 
 import requests as http_requests
-from flask import Flask, request, jsonify, redirect, render_template
+from flask import Flask, request, jsonify, redirect, render_template, make_response
 from qdrant_client import QdrantClient
 from qdrant_client.models import Filter, FieldCondition, MatchValue
 from werkzeug.utils import secure_filename
@@ -1166,6 +1166,26 @@ def api_knowledge_stats():
     return jsonify(_cache['knowledge_stats'])
 
 
+
+@app.route('/api/traffic/flow/<int:z>/<int:x>/<int:y>.png')
+def api_traffic_flow(z, x, y):
+    """Proxy TomTom traffic flow tiles to hide API key from frontend."""
+    key = os.environ.get('TOMTOM_API_KEY')
+    if not key:
+        return 'Traffic service not configured', 503
+    url = f'https://api.tomtom.com/traffic/map/4/tile/flow/relative/{z}/{x}/{y}.png?key={key}'
+    try:
+        resp = http_requests.get(url, timeout=10)
+        if resp.status_code != 200:
+            return 'Upstream error', 502
+        r = make_response(resp.content)
+        r.headers['Content-Type'] = 'image/png'
+        r.headers['Cache-Control'] = 'public, max-age=120'
+        return r
+    except Exception:
+        return 'Upstream timeout', 504
+
+
 @app.route('/api/config')
 def api_config():
     """Return deployment profile config for frontend consumption."""