exclude lift-assisted ski types from ascent totals

src/lib/server/db.ts

@@ -3,6 +3,12 @@ import fs from 'node:fs';
 import path from 'node:path';
 import { PEAKS } from './peaks-seed';
 import { assignMinzoom, scorePeak } from './peak-score';
+import { LIFT_ASSISTED_TYPES } from '$lib/activity-rules';
+
+// SQL fragment: elevation gain that counts toward ascent totals
+// (lift-assisted downhill types contribute 0)
+const LIFT_LIST = LIFT_ASSISTED_TYPES.map((t) => `'${t}'`).join(', ');
+export const COUNTED_GAIN = `CASE WHEN lower(trim(type)) IN (${LIFT_LIST}) THEN 0 ELSE elev_gain_m END`;
 
 const DATA_DIR = process.env.STREBA_DATA_DIR ?? 'data';
 fs.mkdirSync(DATA_DIR, { recursive: true });
@@ -234,7 +240,7 @@ export function userStats(userId: number): {
 		.prepare(
 			`SELECT count(*) activities,
 			        coalesce(sum(distance_m), 0) distance_m,
-			        coalesce(sum(elev_gain_m), 0) elev_gain_m,
+			        coalesce(sum(${COUNTED_GAIN}), 0) elev_gain_m,
 			        coalesce(sum(coalesce(moving_s, duration_s, 0)), 0) moving_s
 			 FROM activities WHERE user_id = ?`
 		)
@@ -252,7 +258,7 @@ export function communityTotals(): {
 			`SELECT (SELECT count(*) FROM users) users,
 			        count(*) activities,
 			        coalesce(sum(distance_m), 0) distance_m,
-			        coalesce(sum(elev_gain_m), 0) elev_gain_m
+			        coalesce(sum(${COUNTED_GAIN}), 0) elev_gain_m
 			 FROM activities`
 		)
 		.get() as { users: number; activities: number; distance_m: number; elev_gain_m: number };