Reputation economy: rep-scaled buy/refuel discounts + job reward quality (ISS-072, v0.38.0)

lib/game/seed.test.ts

@@ -1,10 +1,12 @@
 import { describe, expect, it } from 'vitest';
 import { haversineKm } from '@/lib/geo';
-import { PLANE_TYPES, STARTER_MODEL } from './catalog';
+import { PLANE_TYPES, repRate, STARTER_MODEL } from './catalog';
 import { SPECIALS } from './specials';
 import {
   BASE_REWARD,
   buildSeed,
+  JOB_BONUS_PER_REP,
+  MAX_JOB_BONUS,
   PACKAGE_COUNT_MAX,
   PACKAGE_COUNT_MIN,
   generatePackage,
@@ -298,4 +300,38 @@ describe('generatePackage (shared seed/spawn builder)', () => {
       expect(countDraws()).toBeGreaterThanOrEqual(7); // pickSpecial draws 1–2 extra
     });
   });
+
+  describe('reputation job bonus (v0.38.0, ISS-072)', () => {
+    it('multiplies the reward by 1 + repRate at elevated reputation', () => {
+      const c = generatePackage({ id: 'c-rep', airports: AIRPORTS, rng: mulberry32(42), nowMs: NOW, originIcao: 'EDDF', destIcao: 'EHAM', weightKg: 1_000, special: null, reputation: 60 });
+      const km = haversineKm(AIRPORTS[0].lat, AIRPORTS[0].lon, AIRPORTS[1].lat, AIRPORTS[1].lon); // EDDF → EHAM
+      expect(repRate(60, JOB_BONUS_PER_REP, MAX_JOB_BONUS)).toBeCloseTo(0.5, 12); // rep 60 → ×1.5
+      expect(c.reward).toBe(Math.round(rewardFor(km, 1_000) * (1 + repRate(60, JOB_BONUS_PER_REP, MAX_JOB_BONUS))));
+    });
+
+    it('defaults to the starting reputation when omitted — byte-identical output', () => {
+      const a = generatePackage({ id: 'c-r0', airports: AIRPORTS, rng: mulberry32(42), nowMs: NOW });
+      const b = generatePackage({ id: 'c-r0', airports: AIRPORTS, rng: mulberry32(42), nowMs: NOW, reputation: STARTING_REPUTATION });
+      expect(a).toEqual(b); // no bonus at the starting value
+    });
+
+    it('composes with the special multiplier (base × jobBonus × special)', () => {
+      const c = generatePackage({ id: 'c-rep-sp', airports: AIRPORTS, rng: mulberry32(42), nowMs: NOW, originIcao: 'EDDF', destIcao: 'EHAM', weightKg: 1_000, special: 'priority', reputation: 60 });
+      const km = haversineKm(AIRPORTS[0].lat, AIRPORTS[0].lon, AIRPORTS[1].lat, AIRPORTS[1].lon); // EDDF → EHAM
+      expect(c.reward).toBe(
+        Math.round(rewardFor(km, 1_000) * (1 + repRate(60, JOB_BONUS_PER_REP, MAX_JOB_BONUS)) * SPECIALS.priority.rewardMultiplier),
+      );
+    });
+
+    it('consumes no extra RNG draw', () => {
+      const countDraws = (reputation?: number): number => {
+        let n = 0;
+        const base = mulberry32(42);
+        generatePackage({ id: 'c-rep-n', airports: AIRPORTS, rng: () => { n += 1; return base(); }, nowMs: NOW, special: null, reputation });
+        return n;
+      };
+      expect(countDraws()).toBe(6); // forced-null special → the fixed order minus the appended draw
+      expect(countDraws(60)).toBe(6); // the rep hook consumes no draws
+    });
+  });
 });