From 4a19f38ab4ff54f9e80698482ebc9dce7707ba6f Mon Sep 17 00:00:00 2001
From: Daniel Schadt <kingdread@gmx.de>
Date: Thu, 1 Oct 2026 09:41:55 +0200
Subject: use overpass api to name climbs

read-only access via the OSM API is discouraged, so we should use
one of the overpass instances instead

in the future, it might be good to make the URL configurable, and to
allow authenticated access to one of the "private" instances
---
 fietsboek/models/climb.py          |  4 ++--
 fietsboek/osm.py                   | 24 ++++++++++++++++++------
 fietsboek/templates/details.jinja2 |  2 +-
 3 files changed, 21 insertions(+), 9 deletions(-)

diff --git a/fietsboek/models/climb.py b/fietsboek/models/climb.py
index 8fefa82..baa7a66 100644
--- a/fietsboek/models/climb.py
+++ b/fietsboek/models/climb.py
@@ -59,7 +59,7 @@ class Climb(Base):
         path = self.track.path()
         return Path(path.points[self.start_index : self.end_index])
 
-    def display_name(self) -> str:
+    def display_name(self) -> str | None:
         """Returns the display name.
 
         If the given name (by the user) is set, returns this. Otherwise, return
@@ -69,7 +69,7 @@ class Climb(Base):
         """
         if self.given_name:
             return self.given_name
-        return self.automatic_name or ""
+        return self.automatic_name
 
     def bounds(self) -> tuple[tuple[float, float], tuple[float, float]]:
         """Returns the bounds of this climb.
diff --git a/fietsboek/osm.py b/fietsboek/osm.py
index e75bd11..436e033 100644
--- a/fietsboek/osm.py
+++ b/fietsboek/osm.py
@@ -1,7 +1,6 @@
 """OSM related utilities for fietsboek."""
 
 import logging
-from urllib.parse import urljoin
 from xml.etree import ElementTree
 
 import requests
@@ -10,7 +9,7 @@ from . import __VERSION__
 from .geo import Path, Point
 
 LOGGER = logging.getLogger(__name__)
-API_URL = "https://api.openstreetmap.org/"
+OVERPASS_API_URL = "https://maps.mail.ru/osm/tools/overpass/api/interpreter"
 HEADERS = {
     "user-agent": f"Fietsboek/{__VERSION__}",
     "accept-encoding": "gzip;q=1.0, identity;q=0.5",
@@ -22,7 +21,7 @@ MAX_DISTANCE_CITY = 750
 MAX_DISTANCE_WATER = 750
 
 
-def find_name(path: Path) -> str:
+def find_name(path: Path) -> str | None:
     """Attempt to find a name for the given path.
 
     :param path: Path to find a name for.
@@ -39,13 +38,26 @@ def find_name(path: Path) -> str:
     max_lat += 0.001
     max_lon += 0.0015
 
-    LOGGER.debug("bbox=%s,%s,%s,%s", min_lon, min_lat, max_lon, max_lat)
+    bbox = f"[bbox:{min_lat},{min_lon},{max_lat},{max_lon}];"
+    LOGGER.debug("Requesting %s", bbox)
 
-    urlpath = f"api/0.6/map?bbox={min_lon},{min_lat},{max_lon},{max_lat}"
-    with session.get(urljoin(API_URL, urlpath)) as response:
+    overpass_script = f"""
+        {bbox}\n
+        (node;way;);
+        (._;>;);
+        out;
+    """
+    with session.post(OVERPASS_API_URL, data={"data": overpass_script}) as response:
+        if response.status_code != 200:
+            LOGGER.info(
+                "Error response from overpass: %s %s", response.status_code, response.reason
+            )
+            return None
         data = response.content
 
+    LOGGER.debug("Got %s bytes of OSM-XML data, parsing...", len(data))
     tree = ElementTree.fromstring(data)
+    LOGGER.debug("Parsing complete!")
 
     name = _name_from_street(tree, path)
     if name is None:
diff --git a/fietsboek/templates/details.jinja2 b/fietsboek/templates/details.jinja2
index a800998..748fc6f 100644
--- a/fietsboek/templates/details.jinja2
+++ b/fietsboek/templates/details.jinja2
@@ -200,7 +200,7 @@
   {% for climb in track.climbs %}
   <div class="climb card">
     <h5 class="card-header">
-      {{ climb.display_name() }}
+      {{ climb.display_name() | default(_("page.details.climbs.climb"), true) }}
       {% if climb.category is not none %}
       <div class="climb-category climb-category-{{ climb.category }}">
         {% if climb.category == 0 %}
-- 
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