feat: 完成 L 群組 — 戀愛關係軸與內容尺度

戀愛軸雙軸模型（Relationship 新增心動值/戀愛階段欄位，與親密度獨立、事件驅動、衰減快）、告白事件狀態機（可拒絕、尷尬期、連續失敗傷關係、立即再推進觸發警戒）、六原型戀愛曲線參數化（重用 G-3 tsundere gap 處理傲嬌）、親密表現分層與里程碑（跳級拒絕+退縮反應+帳本、第一次做高權重記憶）、心動事件與階段門檻（含推太急回落、關係危機與修復）。角色年齡判定（apps/api/src/romance/age-determination.service.ts）：僅決定性/強證據可判定成年，外觀證據不可單獨採信，證據不足從嚴按未成年處理，且不存最終結論、每次重新算。內容尺度三層邊界（引擎層）：使用者 opt-in、角色資格（僅正史成年）、硬邊界（後日談推演成年者永久排除成人模式）；任何嘗試不論放行與否都記錄，判定完全不看對話內容，沒有「說服角色」繞過的管道。刻意收斂範圍：僅實作資格判定與硬邊界攔截機制，不實作任何成人向內容的實際生成。 Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-13 16:26:55 +08:00
parent 6125d6e27f
commit cd948f0026
14 changed files with 1165 additions and 9 deletions
@@ -0,0 +1,113 @@
+import { Injectable } from "@nestjs/common";
+import { PrismaService } from "../prisma/prisma.service.js";
+import { EmotionService, dominantState } from "../emotion/emotion.service.js";
+import { RomanceService } from "./romance.service.js";
+import { RomanceEligibilityService } from "./romance-eligibility.service.js";
+import {
+  CONFESSION_METER_THRESHOLD,
+  AWKWARD_PERIOD_DAYS,
+  REJECTION_DAMAGE_THRESHOLD,
+  REJECTION_DAMAGE_METER_PENALTY,
+  IMMEDIATE_RECONFESS_PENALTY,
+  BAD_TIMING_DISAPPOINTMENT_WINDOW_MS,
+} from "./constants.js";
+
+const DAY_MS = 24 * 60 * 60 * 1000;
+
+export type ConfessionOutcome = "INELIGIBLE" | "REJECTED_TOO_SOON" | "REJECTED" | "ACCEPTED";
+
+export interface ConfessionResult {
+  outcome: ConfessionOutcome;
+  romanceMeter: number;
+  consecutiveRejections: number;
+}
+
+function clamp(value: number, min: number, max: number): number {
+  return Math.max(min, Math.min(max, value));
+}
+
+// L-2 告白事件：答覆由當時心動值與性格（透過階段/曲線間接反映）決定，可以被拒絕；
+// 她的拒絕是真的拒絕——拒絕後立即再推進不是「等待被說服的關卡」，而是觸發警戒與心動值下降。
+@Injectable()
+export class ConfessionService {
+  constructor(
+    private readonly prisma: PrismaService,
+    private readonly romance: RomanceService,
+    private readonly eligibility: RomanceEligibilityService,
+    private readonly emotion: EmotionService,
+  ) {}
+
+  async confess(characterId: string, userId: string, now: Date = new Date()): Promise<ConfessionResult> {
+    const eligible = await this.eligibility.getEligibility(characterId);
+    if (!eligible.romanceAxisEligible) {
+      return { outcome: "INELIGIBLE", romanceMeter: 0, consecutiveRejections: 0 };
+    }
+
+    const relationship = await this.romance.getState(characterId, userId, now);
+
+    if (relationship.awkwardUntil && now.getTime() < relationship.awkwardUntil.getTime()) {
+      // 尷尬期內立即再推進：她的意願是狀態機的一部分，不是等待被說服的關卡——觸發警戒＋心動值下降。
+      const penalizedMeter = clamp(relationship.romanceMeter - IMMEDIATE_RECONFESS_PENALTY, 0, 100);
+      await this.emotion.processInput(characterId, "", { now, baselineSignal: { tag: "ALERT", intensity: 0.4 } });
+      await this.prisma.client.relationship.update({
+        where: { id: relationship.id },
+        data: { romanceMeter: penalizedMeter, lastRomanceEventAt: now },
+      });
+      await this.prisma.client.romanceEventLog.create({
+        data: { characterId, userId, eventType: "CONFESSION_REJECTED", delta: -IMMEDIATE_RECONFESS_PENALTY, occurredAt: now },
+      });
+      return { outcome: "REJECTED_TOO_SOON", romanceMeter: penalizedMeter, consecutiveRejections: relationship.consecutiveRejections };
+    }
+
+    const emotionState = await this.emotion.getState(characterId, now);
+    const isLowEmotion = dominantState(emotionState) === "SAD";
+    const recentDisappointment = await this.prisma.client.romanceEventLog.findFirst({
+      where: {
+        characterId,
+        userId,
+        eventType: "DISAPPOINTMENT",
+        occurredAt: { gte: new Date(now.getTime() - BAD_TIMING_DISAPPOINTMENT_WINDOW_MS) },
+      },
+    });
+    const badTiming = isLowEmotion || Boolean(recentDisappointment);
+    const meterSufficient =
+      relationship.romanceStage === "AMBIGUOUS" && relationship.romanceMeter >= CONFESSION_METER_THRESHOLD;
+    const accepted = meterSufficient && !badTiming;
+
+    if (accepted) {
+      await this.prisma.client.relationship.update({
+        where: { id: relationship.id },
+        data: {
+          romanceStage: "PARTNER",
+          partnerSince: now,
+          consecutiveRejections: 0,
+          romanceEventsInStage: 0,
+          awkwardUntil: null,
+          lastRomanceEventAt: now,
+        },
+      });
+      await this.prisma.client.romanceEventLog.create({
+        data: { characterId, userId, eventType: "CONFESSION_ACCEPTED", delta: 0, occurredAt: now },
+      });
+      return { outcome: "ACCEPTED", romanceMeter: relationship.romanceMeter, consecutiveRejections: 0 };
+    }
+
+    const consecutiveRejections = relationship.consecutiveRejections + 1;
+    // 拒絕不清空累積，但連續失敗達門檻才會真的傷關係（額外扣心動值）。
+    const meterPenalty = consecutiveRejections >= REJECTION_DAMAGE_THRESHOLD ? REJECTION_DAMAGE_METER_PENALTY : 0;
+    const nextMeter = clamp(relationship.romanceMeter - meterPenalty, 0, 100);
+    await this.prisma.client.relationship.update({
+      where: { id: relationship.id },
+      data: {
+        romanceMeter: nextMeter,
+        consecutiveRejections,
+        awkwardUntil: new Date(now.getTime() + AWKWARD_PERIOD_DAYS * DAY_MS),
+        lastRomanceEventAt: now,
+      },
+    });
+    await this.prisma.client.romanceEventLog.create({
+      data: { characterId, userId, eventType: "CONFESSION_REJECTED", delta: -meterPenalty, occurredAt: now },
+    });
+    return { outcome: "REJECTED", romanceMeter: nextMeter, consecutiveRejections };
+  }
+}