Tonight

server-rs/src/routes/postcode_stats.rs

@@ -16,6 +16,7 @@ use crate::utils::normalize_postcode;
 
 use super::hexagon_stats::HexagonStatsResponse;
 use super::stats;
+use super::travel_time::{load_travel_data, parse_optional_travel, row_passes_travel_filters};
 
 #[derive(Deserialize)]
 pub struct PostcodeStatsParams {
@@ -24,6 +25,9 @@ pub struct PostcodeStatsParams {
     /// Comma-separated feature names to include in stats response.
     /// Only listed features are computed; if absent or empty, no features are returned.
     pub fields: Option<String>,
+    /// Pipe-separated travel time entries: `mode:slug|mode:slug:min:max`.
+    /// Optional min:max applies as a filter (exclude properties outside range).
+    pub travel: Option<String>,
     /// Share-link code; grants bbox-scoped access for unlicensed users.
     pub share: Option<String>,
 }
@@ -71,6 +75,8 @@ pub async fn get_postcode_stats(
     let filters_str = params.filters;
 
     let (fields_specified, field_set) = parse_field_set(params.fields.as_deref());
+    let travel_entries = parse_optional_travel(params.travel.as_deref())
+        .map_err(|err| (StatusCode::BAD_REQUEST, err).into_response())?;
 
     let postcode_str = normalized;
 
@@ -78,6 +84,8 @@ pub async fn get_postcode_stats(
         let start_time = std::time::Instant::now();
         let num_features = state.data.num_features;
         let feature_data = &state.data.feature_data;
+        let travel_data = load_travel_data(&state.travel_time_store, &travel_entries)?;
+        let has_travel = !travel_entries.is_empty();
 
         // Search around centroid (generous for a postcode)
         let offset: f64 = POSTCODE_SEARCH_OFFSET;
@@ -101,6 +109,11 @@ pub async fn get_postcode_stats(
                         num_features,
                     )
                 {
+                    if has_travel
+                        && !row_passes_travel_filters(row_postcode, &travel_entries, &travel_data)
+                    {
+                        return;
+                    }
                     matching_rows.push(row);
                 }
             });
@@ -126,6 +139,7 @@ pub async fn get_postcode_stats(
             total_count,
             filters = num_filters,
             filters_raw = filters_str.as_deref().unwrap_or("-"),
+            travel_entries = travel_entries.len(),
             ms = format_args!("{:.1}", elapsed.as_secs_f64() * 1000.0),
             "GET /api/postcode-stats"
         );