Add airports layer

layers/airports/get_data.py

@@ -0,0 +1,40 @@
+#!/usr/bin/env python
+import csv
+import io
+import json
+import urllib.request
+
+index_imports = []
+
+resp = urllib.request.urlopen("https://davidmegginson.github.io/ourairports-data/airports.csv")
+airports = list(csv.DictReader(io.TextIOWrapper(resp)))
+types = set([a['type'] for a in airports])
+
+for airport_type in types:
+
+    geojson = {
+        "type": "FeatureCollection",
+        "features": [],
+    }
+
+    for airport in airports:
+        if airport['type'] == airport_type:
+            geojson['features'].append({
+                "type": "Feature",
+                "geometry": {
+                    "type": "Point",
+                    "coordinates": [float(airport['longitude_deg']), float(airport['latitude_deg'])]
+                },
+                "properties": airport, # TODO
+            })
+
+    with open(f'data/{airport_type}.geojson', 'w') as f:
+        f.write(json.dumps(geojson))
+
+with open("data/types.js", 'w') as f:
+    for airport_type in types:
+        f.write(f"import {airport_type} from './{airport_type}.geojson?url';\n")
+    f.write('\nexport default {\n')
+    for airport_type in types:
+        f.write(f"    {airport_type}: {airport_type},\n")
+    f.write("};\n")