Auto-refuel on dispatch; remove manual refueling UI/API/action (ISS-082, v0.42.0)

lib/sim/engine.ts

@@ -5,7 +5,7 @@ import * as schema from '@/lib/db/schema';
 import { loadAirportsGeoJson } from '@/lib/airports';
 import { haversineKm, initialBearingDeg } from '@/lib/geo';
 import { weatherFor } from '@/lib/weather';
-import { conditionBurnMultiplier, PLANE_TYPES, WEAR_PER_KM } from '@/lib/game/catalog';
+import { conditionBurnMultiplier, FUEL_DISCOUNT_PER_REP, FUEL_PRICE_PER_L, MAX_FUEL_DISCOUNT, PLANE_TYPES, repRate, WEAR_PER_KM } from '@/lib/game/catalog';
 import { SPECIALS } from '@/lib/game/specials';
 import { parseIcaoQueue } from '@/lib/game/state';
 import {
@@ -152,8 +152,10 @@ export async function finishRepairs(inst: GameDb, clockMs: number): Promise<numb
 // gain per package), 'expired' ones just unbind (no reward). Packages destined
 // elsewhere stay loaded on the plane for a later leg. Then (v0.25.0, ISS-043)
 // auto-chain: if the queue holds legs and fuel covers the first one, start it
-// immediately from the arrival airport; otherwise ground the plane there with
-// its remaining fuel (a short tank keeps the queue intact for refuel + re-dispatch).
+// immediately from the arrival airport; with a short tank, ISS-082 (v0.42.0) tops
+// up to 150% of the requirement (capped at tank capacity) when cash allows and
+// chains anyway — only an unaffordable top-up grounds the plane there with its
+// remaining fuel and the queue kept intact for a later dispatch.
 // Idempotent — a finalized plane either leaves the 'flying' state or starts a NEW
 // leg whose own arrival is in the future, so it can never be awarded twice.
 // Returns planes landed. NOTE: runs BEFORE tickOnce's slow-down check on purpose —
@@ -219,11 +221,13 @@ export async function deliverPackages(inst: GameDb, clockMs: number): Promise<nu
 
     // Auto-chain (ISS-043): with a non-empty queue and enough fuel for the first
     // queued leg, start it immediately from `to` — same feasibility rule as flyPlane
-    // (requiredFuelFor is independent of current load). Otherwise ground here; an
-    // unknown ICAO in the queue simply cannot chain. The remaining queue is kept
-    // intact either way so a grounded plane can refuel and re-dispatch.
+    // (requiredFuelFor is independent of current load). ISS-082 (v0.42.0): manual refuel is gone,
+    // so a short tank no longer strands the chain — when cash allows, top up to 150% of the
+    // requirement (capped at tank capacity) and chain anyway; unaffordable → ground here with the
+    // queue kept intact. An unknown ICAO in the queue simply cannot chain either way.
     const queue = parseIcaoQueue(p.queue);
     let chainedTo: string | null = null;
+    let topUpFuel: number | null = null; // post-top-up fuel for the chained departure, when a top-up happened
     if (queue.length > 0) {
       const nextDest = queue[0];
       const next = byIcao.get(nextDest); // unknown ICAO in the queue → cannot chain
@@ -241,6 +245,20 @@ export async function deliverPackages(inst: GameDb, clockMs: number): Promise<nu
         if (nextRequiredL <= landedFuel) {
           queue.shift();
           chainedTo = nextDest;
+        } else {
+          // ISS-082: auto top-up — same target/price terms as flyPlane's dispatch refuel.
+          const target = Math.min(type.maxFuel, Math.max(landedFuel, nextRequiredL * 1.5));
+          const liters = Math.max(0, target - landedFuel);
+          // Fresh account read (same pattern as the delivery awards above) so a top-up in this tick sees current cash.
+          const fresh = (await inst.db.select().from(schema.account))[0];
+          if (!fresh) throw new Error('account row missing');
+          const cost = Math.round(liters * FUEL_PRICE_PER_L * (1 - repRate(fresh.reputation, FUEL_DISCOUNT_PER_REP, MAX_FUEL_DISCOUNT)) * 100) / 100;
+          if (cost === 0 || fresh.cash >= cost) {
+            queue.shift();
+            chainedTo = nextDest;
+            topUpFuel = target;
+            if (cost > 0) await inst.db.update(schema.account).set({ cash: Math.round((fresh.cash - cost) * 100) / 100 });
+          }
         }
       }
     }
@@ -252,7 +270,7 @@ export async function deliverPackages(inst: GameDb, clockMs: number): Promise<nu
               locationIcao: to.icao,
               lat: to.lat,
               lon: to.lon,
-              fuel: landedFuel,
+              fuel: topUpFuel ?? landedFuel, // ISS-082: the post-top-up level when a top-up funded the chain
               health: newHealth, // v0.39.0 (ISS-069) — this leg's wear persists into the chained flight
               destIcao: chainedTo,
               departureSimTime: clockMs, // the arrival instant — position is exactly `to`