feat(*): 创作配置 - 支持 Midjourney、多图保存与自定义公告

Co-authored-by: ddcat666 <26564566+ddcat666@users.noreply.github.com>

web/src/lib/update-announcement.ts

@@ -0,0 +1,49 @@
+export type UpdateBlock = {
+    id: string;
+    type: "text" | "image" | "video";
+    text: string;
+    resourceId: string;
+    caption: string;
+    layout: "full" | "half";
+    mediaUrl?: string;
+};
+export type UpdateRelease = { id: string; version: string; title: string; date: string; blocks: UpdateBlock[] };
+export type UpdateAnnouncement = { enabled: boolean; currentVersion: string; releases: UpdateRelease[] };
+export const DEFAULT_UPDATE_ANNOUNCEMENT: UpdateAnnouncement = { enabled: false, currentVersion: "", releases: [] };
+
+export function normalizeUpdateAnnouncement(value?: UpdateAnnouncement | null): UpdateAnnouncement {
+    return { ...DEFAULT_UPDATE_ANNOUNCEMENT, ...value, releases: Array.isArray(value?.releases) ? value.releases : [] };
+}
+
+export function updateAnnouncementVersion(value: UpdateAnnouncement | undefined, builtInVersion: string) {
+    return value?.enabled ? value.currentVersion : `v${builtInVersion.replace(/^v/, "")}`;
+}
+
+export function moveUpdateItem<T>(items: T[], index: number, direction: -1 | 1): T[] {
+    const destination = index + direction;
+    if (index < 0 || index >= items.length || destination < 0 || destination >= items.length) return items;
+    const result = [...items];
+    [result[index], result[destination]] = [result[destination], result[index]];
+    return result;
+}
+
+export function validateUpdateAnnouncement(value: UpdateAnnouncement): string | undefined {
+    if (value.enabled && (!value.currentVersion.trim() || !value.releases.length)) return "开启自定义公告前请填写当前版本并添加公告内容";
+    if (value.enabled && !value.releases.some((release) => release.version.trim() === value.currentVersion.trim())) return "当前版本须对应已添加的公告版本";
+    if (value.releases.length > 30) return "最多添加 30 个公告版本";
+    const versions = new Set<string>();
+    let totalBytes = 0;
+    for (const release of value.releases) {
+        const version = release.version.trim();
+        if (!version || Array.from(version).length > 40) return "每个公告版本号须为 1 至 40 个字符";
+        if (versions.has(version)) return "公告版本号不能重复";
+        versions.add(version);
+        if (!release.blocks.length || release.blocks.length > 50) return "每个版本须添加 1 至 50 个内容块";
+        for (const block of release.blocks) {
+            if (block.type === "text" && !block.text.trim()) return "请填写文字内容，或删除空白内容块";
+            if (block.type !== "text" && !block.resourceId) return "请上传图片或视频，或删除空白内容块";
+            totalBytes += new TextEncoder().encode(block.text.trim() + block.caption.trim()).length;
+        }
+    }
+    if (totalBytes > 200000) return "公告内容总大小不能超过 200KB";
+}