update aiChatQuestions.ts from api

src/pages/ai/aiChatQuestions.ts

@@ -1,8 +1,141 @@
-/** 门店智能助手快捷问题。 */
-export const aiQuickQuestionList = [
-	"今天门店经营怎么样？",
-	"本月销售额、订单数和应收款是多少？",
-	"哪些产品库存需要关注？",
-	"本月有哪些需要重点跟进的客户？",
-	"本月客户复购情况如何？"
-] as const;
+import { ref } from "vue";
+import { SettingAPI } from "timi-web-api";
+
+const AI_QUICK_QUESTION_CACHE_KEY = "gao-customer-h5:ai-agent-example";
+const AI_QUICK_QUESTION_CACHE_TTL = 24 * 60 * 60 * 1000;
+const AI_QUICK_QUESTION_COUNT = 5;
+
+interface AiQuickQuestionCache {
+	cachedAt: number;
+	questionList: string[];
+}
+
+/** 从快捷问题题库中随机抽取指定数量的问题。 */
+export function getRandomAiQuickQuestions(count = AI_QUICK_QUESTION_COUNT, questionPool: readonly string[] = []): string[] {
+	const result: string[] = [...questionPool];
+	const targetCount = Math.min(Math.max(Math.floor(count), 0), result.length);
+
+	for (let index = 0; index < targetCount; index += 1) {
+		const randomIndex = index + Math.floor(Math.random() * (result.length - index));
+		[result[index], result[randomIndex]] = [result[randomIndex], result[index]];
+	}
+
+	return result.slice(0, targetCount);
+}
+
+/** 清理并去重快捷问题。 */
+function normalizeAiQuickQuestionList(value: unknown): string[] {
+	if (!Array.isArray(value)) {
+		return [];
+	}
+
+	return [...new Set(value.filter((item): item is string => typeof item === "string").map(item => item.trim()).filter(Boolean))];
+}
+
+/** 将 Setting 中的题库值解析为有效的快捷问题列表。 */
+function parseAiQuickQuestionList(value: unknown): string[] {
+	if (typeof value !== "string") {
+		return [];
+	}
+
+	try {
+		return normalizeAiQuickQuestionList(JSON.parse(value));
+	} catch {
+		return [];
+	}
+}
+
+/** 读取一天内有效的本地题库缓存。 */
+function readAiQuickQuestionCache(): string[] {
+	try {
+		const cacheValue = localStorage.getItem(AI_QUICK_QUESTION_CACHE_KEY);
+		if (!cacheValue) {
+			return [];
+		}
+
+		const cache: unknown = JSON.parse(cacheValue);
+		if (typeof cache !== "object" || cache === null || !("cachedAt" in cache) || !("questionList" in cache)) {
+			return [];
+		}
+
+		const typedCache = cache as AiQuickQuestionCache;
+		if (typeof typedCache.cachedAt !== "number" || !Number.isFinite(typedCache.cachedAt)) {
+			return [];
+		}
+
+		const cacheAge = Date.now() - typedCache.cachedAt;
+		if (cacheAge < 0 || AI_QUICK_QUESTION_CACHE_TTL < cacheAge || !Array.isArray(typedCache.questionList)) {
+			return [];
+		}
+
+		return normalizeAiQuickQuestionList(typedCache.questionList);
+	} catch {
+		return [];
+	}
+}
+
+/** 将动态题库缓存到本地一天。 */
+function writeAiQuickQuestionCache(questionList: string[]): void {
+	try {
+		const cache: AiQuickQuestionCache = {
+			cachedAt: Date.now(),
+			questionList
+		};
+		localStorage.setItem(AI_QUICK_QUESTION_CACHE_KEY, JSON.stringify(cache));
+	} catch {
+		// 本地存储不可用时跳过缓存。
+	}
+}
+
+/** 从系统设置中获取动态快捷问题题库。 */
+async function fetchAiQuickQuestionPool(): Promise<string[]> {
+	const settingMap = await SettingAPI.map("GAO_SYSTEM", undefined, ["AI_AGENT_EXAMPLE"]);
+	return parseAiQuickQuestionList(settingMap.AI_AGENT_EXAMPLE?.value);
+}
+
+let loadingPromise: Promise<void> | undefined;
+let currentAiQuickQuestionPool: string[] = [];
+
+/** 从已加载的题库中重新抽取快捷问题。 */
+export function refreshAiQuickQuestions(): void {
+	aiQuickQuestionList.value = getRandomAiQuickQuestions(AI_QUICK_QUESTION_COUNT, currentAiQuickQuestionPool);
+}
+
+/** 加载动态题库并刷新当前会话展示的问题。 */
+export async function loadAiQuickQuestions(): Promise<void> {
+	if (loadingPromise) {
+		await loadingPromise;
+		return;
+	}
+
+	loadingPromise = (async () => {
+		const cachedQuestionList = readAiQuickQuestionCache();
+		if (cachedQuestionList.length > 0) {
+			currentAiQuickQuestionPool = cachedQuestionList;
+			refreshAiQuickQuestions();
+			return;
+		}
+
+		currentAiQuickQuestionPool = [];
+		aiQuickQuestionList.value = [];
+		try {
+			const questionList = await fetchAiQuickQuestionPool();
+			if (questionList.length > 0) {
+				currentAiQuickQuestionPool = questionList;
+				writeAiQuickQuestionCache(questionList);
+				refreshAiQuickQuestions();
+			}
+		} catch {
+			// 接口异常时保持为空。
+		}
+	})();
+
+	try {
+		await loadingPromise;
+	} finally {
+		loadingPromise = undefined;
+	}
+}
+
+/** 当前会话欢迎页展示的快捷问题。 */
+export const aiQuickQuestionList = ref<string[]>([]);