95 lines
3.0 KiB
TypeScript
95 lines
3.0 KiB
TypeScript
/** 新建帖本地草稿（localStorage） */
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const STORAGE_KEY = 'j13-compose-draft-v2';
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export type ComposeDraftPostType = 'normal' | 'question' | 'poll' | 'bounty' | 'lottery';
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export type ComposeDraft = {
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title: string;
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tags: string;
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content: string;
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boardId: string;
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postType: ComposeDraftPostType;
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pollOptions?: string[];
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pollMulti?: boolean;
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pollMaxChoices?: number;
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pollEndsAt?: string;
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pollNoEndTime?: boolean;
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savedAt: number;
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};
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const VALID_POST_TYPES: ComposeDraftPostType[] = ['normal', 'question', 'poll', 'bounty', 'lottery'];
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function normalizePostType(value: unknown): ComposeDraftPostType {
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if (typeof value === 'string' && VALID_POST_TYPES.includes(value as ComposeDraftPostType)) {
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return value as ComposeDraftPostType;
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}
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return 'normal';
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}
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export function loadComposeDraft(): ComposeDraft | null {
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try {
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const raw = localStorage.getItem(STORAGE_KEY);
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if (!raw) return null;
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const data = JSON.parse(raw) as Partial<ComposeDraft>;
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if (!data || typeof data !== 'object') return null;
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const postType = normalizePostType(data.postType);
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const draft: ComposeDraft = {
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title: typeof data.title === 'string' ? data.title : '',
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tags: typeof data.tags === 'string' ? data.tags : '',
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content: typeof data.content === 'string' ? data.content : '',
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boardId: typeof data.boardId === 'string' ? data.boardId : '',
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postType,
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savedAt: typeof data.savedAt === 'number' ? data.savedAt : Date.now(),
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};
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if (postType === 'poll') {
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if (Array.isArray(data.pollOptions) && data.pollOptions.every(o => typeof o === 'string')) {
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draft.pollOptions = data.pollOptions.length >= 2 ? data.pollOptions : ['', ''];
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}
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if (typeof data.pollMulti === 'boolean') draft.pollMulti = data.pollMulti;
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if (typeof data.pollMaxChoices === 'number' && data.pollMaxChoices > 0) {
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draft.pollMaxChoices = data.pollMaxChoices;
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}
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if (typeof data.pollEndsAt === 'string') draft.pollEndsAt = data.pollEndsAt;
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if (typeof data.pollNoEndTime === 'boolean') draft.pollNoEndTime = data.pollNoEndTime;
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}
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return draft;
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} catch {
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return null;
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}
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}
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export function saveComposeDraft(draft: Omit<ComposeDraft, 'savedAt'>): void {
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try {
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const payload: ComposeDraft = { ...draft, savedAt: Date.now() };
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localStorage.setItem(STORAGE_KEY, JSON.stringify(payload));
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} catch {
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// 配额满或隐私模式：忽略
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}
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}
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export function clearComposeDraft(): void {
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try {
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localStorage.removeItem(STORAGE_KEY);
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// 清理旧版草稿键
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localStorage.removeItem('j13-compose-draft-v1');
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} catch {
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// ignore
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}
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}
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/** 草稿是否有实质内容 */
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export function composeDraftHasContent(d: ComposeDraft | null | undefined): boolean {
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if (!d) return false;
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const hasPollOptions = d.postType === 'poll'
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&& Array.isArray(d.pollOptions)
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&& d.pollOptions.some(o => o.trim());
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return !!(
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d.title.trim()
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|| d.tags.trim()
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|| d.content.trim()
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|| (d.content && d.content.replace(/<[^>]*>/g, '').trim())
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|| hasPollOptions
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);
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}
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