update

importer/src/repositories/railway_store.rs

@@ -0,0 +1,41 @@
+use std::collections::HashMap;
+
+// Store railway ways for deferred insertion (after relation processing for colors)
+pub struct RailwayWay {
+    pub id: i64,
+    pub tags: HashMap<String, String>,
+    pub points: Vec<u8>,  // Serialized line blob
+    pub first_lat: f64,
+    pub first_lon: f64,
+}
+
+pub struct RailwayStore {
+    ways: HashMap<i64, RailwayWay>,  // way_id -> railway data
+    way_colors: HashMap<i64, String>, // way_id -> colour from route relation
+}
+
+impl RailwayStore {
+    pub fn new() -> Self {
+        Self { 
+            ways: HashMap::new(),
+            way_colors: HashMap::new(),
+        }
+    }
+    
+    pub fn insert_way(&mut self, id: i64, tags: HashMap<String, String>, points: Vec<u8>, first_lat: f64, first_lon: f64) {
+        self.ways.insert(id, RailwayWay { id, tags, points, first_lat, first_lon });
+    }
+    
+    pub fn set_color(&mut self, way_id: i64, color: String) {
+        // Only set if not already set (first route relation wins)
+        self.way_colors.entry(way_id).or_insert(color);
+    }
+    
+    pub fn get_color(&self, way_id: i64) -> Option<&String> {
+        self.way_colors.get(&way_id)
+    }
+
+    pub fn into_data(self) -> (HashMap<i64, RailwayWay>, HashMap<i64, String>) {
+        (self.ways, self.way_colors)
+    }
+}