Describe the Bug

When calling find_campgrounds(rec_area_id=[3]) (or any GoingToCamp recreation area), the provider raises a KeyError because campground_details dictionary doesn't contain the expected keys.

Camply Version

• camply version: 0.33.1
• Python version: 3.12

Error Message

KeyError: -2147483647

Full traceback:

File ".../camply/providers/going_to_camp/going_to_camp_provider.py", line 427, in _process_facilities_responses
    self.campground_details[facility.resource_location_id]
KeyError: -2147483647

Steps to Reproduce

from camply.providers import GoingToCamp

provider = GoingToCamp()
campgrounds = provider.find_campgrounds(rec_area_id=[3])  # Washington State Parks
# Raises KeyError: -2147483647

Root Cause Analysis

I debugged this issue and found the root cause:

1. LIST_CAMPGROUNDS API returns facilities with both resourceLocationId and rootMapId:

   # Example facility from LIST_CAMPGROUNDS:
   {
       "resourceLocationId": -2147483647,
       "rootMapId": -2147483396,
       "localizedValues": [{"fullName": "Alta Lake State Park"}],
       ...
   }

2. CAMP_DETAILS API returns regional map data, NOT per-campground details. All entries have resourceLocationId=None:

   # All 6 entries from CAMP_DETAILS for Washington State Parks:
   [
       {"resourceLocationId": None, "mapId": -2147483648, ...},  # Regional map 1
       {"resourceLocationId": None, "mapId": -2147483643, ...},  # Regional map 2
       # ... all have resourceLocationId=None
   ]

3. The bug is in find_facilities_per_recreation_area() at lines 287-288:

   for camp_details in self._api_request(rec_area_id, "CAMP_DETAILS"):
       self.campground_details[camp_details["resourceLocationId"]] = camp_details

   This creates {None: <last_entry>} because all entries have resourceLocationId=None.

4. The crash happens in _process_facilities_responses() at line 427:

   self.campground_details[facility.resource_location_id]  # KeyError!

Affected Recreation Areas

All GoingToCamp recreation areas are affected:

• Washington State Parks (rec_area_id=3) - 78 campgrounds
• Wisconsin State Parks (rec_area_id=7) - 50 campgrounds
• BC Parks (rec_area_id=1) - 110 campgrounds
• Parks Canada (rec_area_id=2) - 76 campgrounds
• Ontario Parks, Maryland State Parks, etc.

Proposed Fix

The LIST_CAMPGROUNDS response already contains rootMapId for each facility. We should use this directly instead of the broken CAMP_DETAILS lookup.

Before (buggy):

def _process_facilities_responses(self, rec_area, facility):
    self.campground_details[facility.resource_location_id]  # KeyError!
    facility.id = _fetch_nested_key(
        self.campground_details, facility.resource_location_id, "mapId"
    )

After (fixed):

# In find_facilities_per_recreation_area(), store rootMapId from LIST_CAMPGROUNDS:
self._root_map_ids = {
    f['resourceLocationId']: f.get('rootMapId')
    for f in api_response
}

# In _process_facilities_responses(), use rootMapId directly:
def _process_facilities_responses(self, rec_area, facility):
    map_id = self._root_map_ids.get(facility.resource_location_id)
    facility.id = map_id

I can submit a PR with this fix if you'd like. I've already tested it locally and confirmed it works for all the recreation areas listed above.