Add chat gifts and relationship diary UI

src/lib/commercial/tip_offer_session.ts

@@ -0,0 +1,39 @@
+import type { TipOfferActionRequest } from "@/data/schemas/chat";
+import { chatApi } from "@/data/services/api/chat_api";
+
+const SESSION_KEY_PREFIX = "cozsweet.tipOffer.session";
+
+export function getTipOfferSessionId(characterId: string): string {
+  const key = `${SESSION_KEY_PREFIX}.${characterId}`;
+  try {
+    const existing = globalThis.sessionStorage.getItem(key);
+    if (existing) return existing;
+    const created = createSessionId();
+    globalThis.sessionStorage.setItem(key, created);
+    return created;
+  } catch {
+    return createSessionId();
+  }
+}
+
+export function recordTipOfferAction(
+  characterId: string,
+  action: TipOfferActionRequest["action"],
+  triggerSource: TipOfferActionRequest["triggerSource"],
+): void {
+  void chatApi
+    .recordTipOfferAction({
+      characterId,
+      sessionId: getTipOfferSessionId(characterId),
+      action,
+      triggerSource,
+    })
+    .catch(() => undefined);
+}
+
+function createSessionId(): string {
+  if (typeof globalThis.crypto?.randomUUID === "function") {
+    return globalThis.crypto.randomUUID();
+  }
+  return `${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 14)}`;
+}

src/lib/navigation/chat_unlock_session.ts

@@ -1,6 +1,7 @@
 "use client";
 
 import {
+  createPendingChatPromotion as createPromotion,
   NavigationStorage,
   type PendingChatUnlock,
   type PendingChatUnlockKind,
@@ -17,6 +18,13 @@ export type {
   PendingChatUnlockStage,
 };
 
+export function createPendingChatPromotion(
+  promotionType: PendingChatPromotionType,
+  characterId: string,
+): PendingChatPromotion {
+  return createPromotion(promotionType, characterId);
+}
+
 export async function savePendingChatUnlock(input: {
   characterId: string;
   displayMessageId?: string;