Add gamification rule constants

docs/gamification-server-plan.md

@@ -29,7 +29,7 @@
 
 | # | 任务 | 状态 | 验收标准 |
 |---|------|------|----------|
-| G0-1 | 梳理游戏化规则常量模块 | [ ] | 新增集中规则定义，覆盖红心、挑战组、XP、等级、金币、道具、广告恢复、周榜周期 |
+| G0-1 | 梳理游戏化规则常量模块 | [x] | 新增集中规则定义，覆盖红心、挑战组、XP、等级、金币、道具、广告恢复、周榜周期 |
 | G0-2 | 新增挑战组数据模型 | [ ] | 支持 challenge session、session answers、组状态、正确数、完成时间、幂等提交 |
 | G0-3 | 新增钱包和道具库存模型 | [ ] | 支持金币余额、道具库存、道具获得/消耗流水 |
 | G0-4 | 新增奖励流水模型 | [ ] | 记录奖励来源、幂等 key、奖励快照、发放前后状态 |

src/__tests__/services/gamification-rules.test.ts

@@ -0,0 +1,38 @@
+import { describe, expect, it } from 'vitest';
+import {
+  AD_RECOVERY_RULES,
+  CHALLENGE_RULES,
+  COIN_RULES,
+  HEART_RULES,
+  ITEM_RULES,
+  LEADERBOARD_RULES,
+  LEVEL_RULES,
+  XP_RULES,
+} from '../../services/gamification/rules.js';
+
+describe('gamification rules', () => {
+  it('centralizes the first-version challenge and recovery limits', () => {
+    expect(CHALLENGE_RULES.questionsPerSession).toBe(5);
+    expect(CHALLENGE_RULES.freeDailyHighRewardSessions).toBe(3);
+    expect(CHALLENGE_RULES.plusDailyHighRewardSessions).toBe(8);
+    expect(HEART_RULES.freeMax).toBe(5);
+    expect(HEART_RULES.restoreIntervalMs).toBe(30 * 60 * 1000);
+    expect(AD_RECOVERY_RULES.heartsDailyLimit).toBe(3);
+    expect(AD_RECOVERY_RULES.bonusAttemptsPerRecovery).toBe(1);
+    expect(AD_RECOVERY_RULES.streakProtectionCooldownMs).toBe(7 * 24 * 60 * 60 * 1000);
+  });
+
+  it('covers XP, level, coin, item, and leaderboard rules', () => {
+    expect(XP_RULES.correctNormal).toBe(10);
+    expect(XP_RULES.correctHard).toBe(15);
+    expect(XP_RULES.comboBonuses[0]).toEqual({ minCombo: 10, bonus: 25 });
+    expect(LEVEL_RULES.maxLevel).toBe(50);
+    expect(LEVEL_RULES.xpRequirements).toHaveLength(50);
+    expect(LEVEL_RULES.xpRequirements.slice(0, 5)).toEqual([100, 120, 150, 180, 220]);
+    expect(COIN_RULES.firstDailyChallenge).toBe(20);
+    expect(ITEM_RULES.hintFeather.shopPriceCoins).toBe(80);
+    expect(ITEM_RULES.doubleXpPotion.durationMs).toBe(15 * 60 * 1000);
+    expect(LEADERBOARD_RULES.xpSource).toBe('weekly_xp');
+    expect(LEADERBOARD_RULES.weekStartsOnIsoDay).toBe(1);
+  });
+});

src/services/gamification/rules.ts

@@ -0,0 +1,131 @@
+export const MS_PER_MINUTE = 60 * 1000;
+export const MS_PER_DAY = 24 * 60 * MS_PER_MINUTE;
+
+export const HEART_RULES = Object.freeze({
+  freeMax: 5,
+  subscribedMax: 99,
+  wrongAnswerCost: 1,
+  restoreIntervalMs: 30 * MS_PER_MINUTE,
+  dailyFirstVisitGrant: 1,
+  newUserProtectionDays: 3,
+  newUserMinimumHearts: 1,
+});
+
+export const CHALLENGE_RULES = Object.freeze({
+  questionsPerSession: 5,
+  freeDailyHighRewardSessions: 3,
+  plusDailyHighRewardSessions: 8,
+  highRewardExhaustedXpMultiplier: 1,
+  sessionStatuses: Object.freeze(['pending', 'in_progress', 'completed', 'abandoned', 'expired'] as const),
+  answerStatuses: Object.freeze(['correct', 'incorrect', 'skipped'] as const),
+});
+
+export const XP_RULES = Object.freeze({
+  correctNormal: 10,
+  correctHard: 15,
+  reviewExplanation: 3,
+  completeChallenge: 20,
+  perfectChallengeBonus: 30,
+  firstKnowledgeCard: 15,
+  dailyTaskMin: 30,
+  dailyTaskMax: 60,
+  themeNodeMin: 80,
+  themeNodeMax: 120,
+  comboBonuses: Object.freeze([
+    Object.freeze({ minCombo: 10, bonus: 25 }),
+    Object.freeze({ minCombo: 5, bonus: 10 }),
+    Object.freeze({ minCombo: 3, bonus: 5 }),
+  ]),
+});
+
+function levelXpRequirement(level: number): number {
+  if (level <= 1) return 100;
+  if (level === 2) return 120;
+  if (level === 3) return 150;
+  if (level === 4) return 180;
+  if (level === 5) return 220;
+  if (level <= 10) return [260, 300, 350, 400, 460][level - 6] ?? 460;
+  if (level <= 20) return 520 + (level - 11) * 80;
+  if (level <= 35) return 1400 + (level - 21) * 120;
+  return 3300 + (level - 36) * 180;
+}
+
+export const LEVEL_RULES = Object.freeze({
+  maxLevel: 50,
+  xpRequirements: Object.freeze(
+    Array.from({ length: 50 }, (_, index) => levelXpRequirement(index + 1)),
+  ),
+  overflowStrategy: 'product_confirmation_required',
+});
+
+export const STREAK_RULES = Object.freeze({
+  countedByCompletedChallengeSessions: 1,
+  milestoneDays: Object.freeze([3, 7, 14, 30, 100] as const),
+  comboChestBoostAt: 10,
+});
+
+export const COIN_RULES = Object.freeze({
+  firstDailyChallenge: 20,
+  dailyTaskMin: 30,
+  dailyTaskMax: 80,
+  levelUp: 100,
+  themeNode: 50,
+  chestMin: 20,
+  chestMax: 200,
+});
+
+export const ITEM_RULES = Object.freeze({
+  streakShield: Object.freeze({
+    id: 'streak_shield',
+    protectDays: 1,
+    shopPriceCoins: 400,
+  }),
+  doubleXpPotion: Object.freeze({
+    id: 'double_xp_potion',
+    durationMs: 15 * MS_PER_MINUTE,
+    multiplier: 2,
+    shopPriceCoins: 250,
+  }),
+  heartSupply: Object.freeze({
+    id: 'heart_supply',
+    restoresToMax: true,
+    shopPriceCoins: 150,
+  }),
+  hintFeather: Object.freeze({
+    id: 'hint_feather',
+    excludedDistractors: 1,
+    shopPriceCoins: 80,
+  }),
+  mascotOutfit: Object.freeze({
+    id: 'mascot_outfit',
+    shopPriceCoinsMin: 800,
+    shopPriceCoinsMax: 3000,
+  }),
+});
+
+export const AD_RECOVERY_RULES = Object.freeze({
+  heartsDailyLimit: 3,
+  bonusAttemptsDailyLimit: 3,
+  streakProtectionCooldownMs: 7 * MS_PER_DAY,
+  sessionTtlMs: 30 * MS_PER_MINUTE,
+  bonusAttemptsPerRecovery: 1,
+  trustedTestProviders: Object.freeze(['mock'] as const),
+});
+
+export const LEADERBOARD_RULES = Object.freeze({
+  xpSource: 'weekly_xp',
+  weekStartsOnIsoDay: 1,
+  groupSizeMin: 20,
+  groupSizeMax: 30,
+  topRewardRanks: Object.freeze([1, 2, 3] as const),
+  demotionEnabledInV1: false,
+});
+
+export const REWARD_RULES = Object.freeze({
+  idempotencyScope: Object.freeze(['ad_recovery', 'purchase', 'challenge_completion', 'leaderboard_settlement'] as const),
+  snapshotRequired: true,
+});
+
+export type ChallengeSessionStatus = typeof CHALLENGE_RULES.sessionStatuses[number];
+export type ChallengeAnswerStatus = typeof CHALLENGE_RULES.answerStatuses[number];
+export type InventoryItemId = typeof ITEM_RULES[keyof typeof ITEM_RULES]['id'];

src/services/progress/hearts-service.ts

@@ -1,10 +1,11 @@
 import { db } from '../../db/client.js';
 import { users } from '../../db/schema.js';
 import { eq, sql } from 'drizzle-orm';
+import { HEART_RULES } from '../gamification/rules.js';
 
-const MAX_FREE_HEARTS = 5;
-const PRO_HEARTS = 99;
-const RESTORE_INTERVAL_MS = 30 * 60 * 1000; // 30 minutes
+const MAX_FREE_HEARTS = HEART_RULES.freeMax;
+const PRO_HEARTS = HEART_RULES.subscribedMax;
+const RESTORE_INTERVAL_MS = HEART_RULES.restoreIntervalMs;
 
 export type RestoreMethod = 'ad' | 'wait' | 'upgrade';
 

src/services/progress/xp-service.ts

@@ -1,6 +1,7 @@
 import { db } from '../../db/client.js';
 import { users } from '../../db/schema.js';
 import { eq, sql } from 'drizzle-orm';
+import { XP_RULES } from '../gamification/rules.js';
 
 /** Combo bonus tiers: minimum combo count → bonus XP */
 const COMBO_BONUSES: ReadonlyArray<{ minCombo: number; bonus: number }> = [
@@ -9,7 +10,7 @@ const COMBO_BONUSES: ReadonlyArray<{ minCombo: number; bonus: number }> = [
   { minCombo: 3, bonus: 5 },
 ];
 
-const BASE_XP = 10;
+const BASE_XP = XP_RULES.correctNormal;
 const DEFAULT_DAILY_GOAL = 50;
 
 function toDateString(value: Date | string | null): string | null {

src/services/rewards/ad-recovery-service.ts

@@ -2,7 +2,7 @@ import { and, desc, eq, gte, lt, sql } from 'drizzle-orm';
 import { v4 as uuid } from 'uuid';
 import { db } from '../../db/client.js';
 import { adRecoverySessions, users } from '../../db/schema.js';
-import { MAX_FREE_HEARTS } from '../progress/hearts-service.js';
+import { AD_RECOVERY_RULES, HEART_RULES } from '../gamification/rules.js';
 import { getDailyAttempts, getProgressSummary } from '../learning/progress-summary-service.js';
 import { getSubscriptionStatus } from '../payment/subscription-service.js';
 import { freezeStreak } from '../progress/streak-service.js';
@@ -66,10 +66,9 @@ export interface AdRecoveryLimits {
   nextStreakProtectionAvailableAt: string | null;
 }
 
-const FREE_DAILY_RECOVERY_LIMIT = 3;
-const SESSION_TTL_MS = 30 * 60 * 1000;
-const STREAK_PROTECTION_COOLDOWN_MS = 7 * 24 * 60 * 60 * 1000;
-const TRUSTED_TEST_PROVIDERS = new Set(['mock']);
+const SESSION_TTL_MS = AD_RECOVERY_RULES.sessionTtlMs;
+const STREAK_PROTECTION_COOLDOWN_MS = AD_RECOVERY_RULES.streakProtectionCooldownMs;
+const TRUSTED_TEST_PROVIDERS: ReadonlySet<string> = new Set(AD_RECOVERY_RULES.trustedTestProviders);
 
 type SessionRecord = typeof adRecoverySessions.$inferSelect;
 type UserTier = 'free' | 'pro' | 'proplus';
@@ -161,8 +160,8 @@ async function getLimits(userId: string): Promise<AdRecoveryLimits> {
     : null;
 
   return {
-    remainingHeartsRecoveriesToday: Math.max(0, FREE_DAILY_RECOVERY_LIMIT - heartCount),
-    remainingAttemptRecoveriesToday: Math.max(0, FREE_DAILY_RECOVERY_LIMIT - attemptCount),
+    remainingHeartsRecoveriesToday: Math.max(0, AD_RECOVERY_RULES.heartsDailyLimit - heartCount),
+    remainingAttemptRecoveriesToday: Math.max(0, AD_RECOVERY_RULES.bonusAttemptsDailyLimit - attemptCount),
     nextStreakProtectionAvailableAt,
   };
 }
@@ -276,7 +275,7 @@ async function applyReward(userId: string, type: AdRecoveryType, before: Progres
     await db
       .update(users)
       .set({
-        heartsRemaining: MAX_FREE_HEARTS,
+        heartsRemaining: HEART_RULES.freeMax,
         heartsLastRestore: sql`NOW()`,
       })
       .where(eq(users.id, userId));