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import { defineStore } from "pinia";
import {
ApiError,
createApiClient,
createNotificationApi,
type BusinessId,
type InAppNotification,
type NotificationApi,
} from "@plain-journal/foundation";
const apiBaseUrl = import.meta.env.VITE_API_BASE_URL?.trim() ?? "";
export interface NotificationAccessContext {
authenticated: boolean;
ownerId: BusinessId | null;
accessToken: string | null;
}
interface ActiveNotificationAccess {
ownerId: BusinessId;
accessToken: string;
revision: number;
api: NotificationApi;
}
export type NotificationReadRecovery =
| "confirmed-read"
| "still-unread"
| "missing"
| "unavailable";
export class NotificationAccessChangedError extends Error {
constructor() {
super("账户或会话已切换，旧的通知请求结果不会写入当前页面。");
this.name = "NotificationAccessChangedError";
}
}
export class NotificationContractError extends Error {
constructor(message: string) {
super(message);
this.name = "NotificationContractError";
}
}
function isActiveContext(context: NotificationAccessContext): context is {
authenticated: true;
ownerId: BusinessId;
accessToken: string;
} {
return context.authenticated
&& typeof context.ownerId === "string"
&& context.ownerId.length > 0
&& typeof context.accessToken === "string"
&& context.accessToken.length > 0;
}
function notificationApi(accessToken: string): NotificationApi {
return createNotificationApi(createApiClient({
baseUrl: apiBaseUrl,
timeoutMs: 8000,
tokenProvider: () => accessToken,
}));
}
function validateNotification(
value: InAppNotification,
): InAppNotification {
if (typeof value.id !== "string" || value.id.length === 0) {
throw new NotificationContractError(
"通知服务返回了非字符串业务 ID，页面已拒绝执行已读命令。",
);
}
Iif (!["UNREAD", "READ"].includes(value.status)) {
throw new NotificationContractError(
`通知服务返回了未识别状态 ${value.status}，页面不会猜测其已读含义。`,
);
}
return value;
}
function resultMayBeUnknown(cause: unknown): boolean {
return cause instanceof ApiError && (
cause.kind === "network"
|| cause.kind === "timeout"
|| cause.kind === "invalid-response"
|| (cause.kind === "http" && (cause.status ?? 500) >= 500)
);
}
export const useNotificationStore = defineStore("customer-notifications", () => {
const notifications = ref<InAppNotification[]>([]);
const unreadCount = ref(0);
const nextCursor = ref<string | null>(null);
const hasMore = ref(false);
const loading = ref(false);
const loadingOlder = ref(false);
const markingReadId = ref<BusinessId | null>(null);
const error = ref<string | null>(null);
const readError = ref<string | null>(null);
const readUnknown = ref(false);
const pendingReadId = ref<BusinessId | null>(null);
const activeOwnerId = ref<BusinessId | null>(null);
let activeAccessToken: string | null = null;
let accessRevision = 0;
let loadRevision = 0;
let factRevision = 0;
const visibleUnreadCount = computed(() =>
notifications.value.filter((item) => item.status === "UNREAD").length);
function synchronizeAccess(
context: NotificationAccessContext,
): ActiveNotificationAccess | null {
const nextOwnerId = isActiveContext(context) ? context.ownerId : null;
const nextAccessToken = isActiveContext(context) ? context.accessToken : null;
const ownerChanged = activeOwnerId.value !== nextOwnerId;
const accessChanged = ownerChanged || activeAccessToken !== nextAccessToken;
if (accessChanged) {
activeOwnerId.value = nextOwnerId;
activeAccessToken = nextAccessToken;
accessRevision += 1;
loadRevision += 1;
loading.value = false;
loadingOlder.value = false;
markingReadId.value = null;
error.value = null;
readError.value = null;
readUnknown.value = false;
pendingReadId.value = null;
Eif (ownerChanged) {
notifications.value = [];
unreadCount.value = 0;
nextCursor.value = null;
hasMore.value = false;
}
}
Iif (!isActiveContext(context)) {
notifications.value = [];
unreadCount.value = 0;
nextCursor.value = null;
hasMore.value = false;
return null;
}
return {
ownerId: context.ownerId,
accessToken: context.accessToken,
revision: accessRevision,
api: notificationApi(context.accessToken),
};
}
function accessIsCurrent(access: ActiveNotificationAccess): boolean {
return access.revision === accessRevision
&& access.ownerId === activeOwnerId.value
&& access.accessToken === activeAccessToken;
}
function requireCurrent(access: ActiveNotificationAccess) {
if (!accessIsCurrent(access)) {
throw new NotificationAccessChangedError();
}
}
function mergeItems(
incoming: InAppNotification[],
append: boolean,
) {
const values = append ? [...notifications.value, ...incoming] : incoming;
const byId = new Map<BusinessId, InAppNotification>();
for (const item of values) {
byId.set(item.id, item);
}
notifications.value = [...byId.values()].sort((left, right) =>
Date.parse(right.createdAt) - Date.parse(left.createdAt));
}
async function load(
context: NotificationAccessContext,
options: { append?: boolean } = {},
): Promise<InAppNotification[]> {
const access = synchronizeAccess(context);
Iif (!access) {
return [];
}
const append = Boolean(options.append);
Iif (append && (!hasMore.value || !nextCursor.value || loadingOlder.value)) {
return notifications.value;
}
const requestRevision = ++loadRevision;
const requestedFactRevision = factRevision;
if (append) {
loadingOlder.value = true;
} else {
loading.value = true;
}
error.value = null;
try {
const [page, count] = await Promise.all([
access.api.notifications(append ? nextCursor.value ?? undefined : undefined, 20),
access.api.unreadCount(),
]);
requireCurrent(access);
Iif (
requestRevision !== loadRevision
|| requestedFactRevision !== factRevision
) {
throw new NotificationAccessChangedError();
}
const incoming = page.items.map(validateNotification);
mergeItems(incoming, append);
unreadCount.value = Math.max(0, Number(count.count) || 0);
nextCursor.value = page.nextCursor;
hasMore.value = page.hasMore;
return notifications.value;
} catch (cause) {
if (
!accessIsCurrent(access)
|| requestRevision !== loadRevision
|| requestedFactRevision !== factRevision
) {
throw new NotificationAccessChangedError();
}
error.value = cause instanceof Error
? cause.message
: "通知事实暂时无法读取。";
return notifications.value;
} finally {
if (accessIsCurrent(access) && requestRevision === loadRevision) {
if (append) {
loadingOlder.value = false;
} else {
loading.value = false;
}
}
}
}
async function markRead(
context: NotificationAccessContext,
notificationId: BusinessId,
): Promise<boolean> {
const access = synchronizeAccess(context);
Iif (!access) {
return false;
}
const current = notifications.value.find((item) => item.id === notificationId);
Iif (!current || current.status === "READ") {
return Boolean(current);
}
markingReadId.value = notificationId;
readError.value = null;
readUnknown.value = false;
pendingReadId.value = null;
try {
await access.api.markRead(notificationId);
requireCurrent(access);
factRevision += 1;
notifications.value = notifications.value.map((item) =>
item.id === notificationId
? { ...item, status: "READ", readAt: new Date().toISOString() }
: item);
unreadCount.value = Math.max(0, unreadCount.value - 1);
return true;
} catch (cause) {
requireCurrent(access);
Eif (resultMayBeUnknown(cause)) {
readUnknown.value = true;
pendingReadId.value = notificationId;
readError.value = "已读结果尚未确认。请先重新读取通知，不要把响应丢失当作未执行。";
return false;
}
readError.value = cause instanceof Error ? cause.message : "通知未能标记为已读。";
return false;
} finally {
Eif (accessIsCurrent(access) && markingReadId.value === notificationId) {
markingReadId.value = null;
}
}
}
async function reconcilePendingRead(
context: NotificationAccessContext,
): Promise<NotificationReadRecovery> {
const notificationId = pendingReadId.value;
Iif (!notificationId) {
await load(context);
return error.value ? "unavailable" : "missing";
}
await load(context);
if (error.value) {
readUnknown.value = true;
readError.value = "权威通知列表仍无法读取，已读结果继续保持待确认。";
return "unavailable";
}
const current = notifications.value.find((item) => item.id === notificationId);
readUnknown.value = false;
pendingReadId.value = null;
Iif (!current) {
readError.value = "权威通知列表中已找不到这条通知，请重新核对账户与通知入口。";
return "missing";
}
Eif (current.status === "READ") {
readError.value = null;
return "confirmed-read";
}
readError.value = "权威通知列表仍显示未读；现在可以再次提交幂等的已读命令。";
return "still-unread";
}
return {
notifications,
unreadCount,
visibleUnreadCount,
nextCursor,
hasMore,
loading,
loadingOlder,
markingReadId,
error,
readError,
readUnknown,
pendingReadId,
activeOwnerId,
load,
markRead,
reconcilePendingRead,
};
});
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