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[READ-ONLY] Mirror of https://github.com/sxzz/midden. Archive posts and media across platforms, with tenant accounts and Telegram access
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TypeScript
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139import type { Asset, Collection, Entity } from './api'export interface Presentation { name: string handle?: string avatar?: Asset body: string kind: string}type Presenter = (a: Collection, root?: Entity) => Presentationconst generic: Presenter = (a) => ({ name: a.author_name || '已保存的内容', body: a.text || a.summary || '暂无正文', kind: '收藏',})const x: Presenter = (a, root) => { const key = a.graph?.relations.find( (r) => r.source === a.graph?.root && r.type === 'authored_by', )?.target const profile = root?.type === 'x.profile' ? root : a.graph?.entities.find((e) => e.key === key && e.type === 'x.profile') return { ...generic(a), kind: root?.type === 'x.profile' ? '资料' : '帖子', handle: typeof profile?.data.username === 'string' ? profile.data.username : undefined, avatar: profile?.assets?.find( (v) => v.purpose === 'avatar' && v.state === 'ready', ), }}const registry: Record<string, Presenter> = { 'x.post': x, 'x.profile': x }export function present(a: Collection) { const root = a.graph?.entities.find((e) => e.key === a.graph?.root) return (registry[root?.type || ''] || generic)(a, root)}
function parseDate(value?: string) { if (!value) return const d = new Date(value) return Number.isFinite(d.getTime()) ? d : undefined}export function date(value?: string) { const d = parseDate(value) if (!d) return '' return new Intl.DateTimeFormat('zh-CN', { dateStyle: 'medium', timeStyle: 'short', }).format(d)}const day = (d: Date) => new Date(d.getFullYear(), d.getMonth(), d.getDate())function daysAgo(d: Date, now: Date) { return Math.round((+day(now) - +day(d)) / 86400000)}/** List timestamps read like the chat list: time today, date before that. */export function shortDate(value?: string, now = new Date()) { const d = parseDate(value) if (!d) return '' const distance = daysAgo(d, now) if (distance === 0) return `${d.getHours()}:${String(d.getMinutes()).padStart(2, '0')}` if (distance === 1) return '昨天' const date = `${d.getMonth() + 1}月${d.getDate()}日` return d.getFullYear() === now.getFullYear() ? date : `${d.getFullYear()}年${date}`}/** Buckets the collection by when it was saved, newest bucket first. */export function groupLabel(value?: string, now = new Date()) { const d = parseDate(value) if (!d) return '已保存' const distance = daysAgo(d, now) if (distance === 0) return '今天' if (distance === 1) return '昨天' const month = `${d.getMonth() + 1}月` return d.getFullYear() === now.getFullYear() ? month : `${d.getFullYear()}年${month}`}export interface CollectionGroup { label: string items: Collection[]}export function groupCollections(items: Collection[], now = new Date()) { const groups: CollectionGroup[] = [] for (const item of items) { const label = groupLabel(item.saved_at || item.observed_at, now) const last = groups.at(-1) if (last?.label === label) last.items.push(item) else groups.push({ label, items: [item] }) } return groups}
const isImage = (a: Asset) => !!a.mime?.startsWith('image/')const isVideo = (a: Asset) => !!a.mime?.startsWith('video/')/** Media that finished saving, in the order the source published it. */export function readyMedia(assets: Asset[] = []) { return assets.filter((a) => a.state === 'ready')}export function mediaSummary(assets: Asset[] = []) { const ready = readyMedia(assets) const images = ready.filter(isImage).length const videos = ready.filter(isVideo).length const others = ready.length - images - videos return [ images && `${images} 张图片`, videos && `${videos} 段视频`, others && `${others} 个文件`, ] .filter(Boolean) .join(' · ')}/** Media state in words. Storage states never reach the reader. */export function mediaNotice(asset: Asset) { if (asset.state === 'pending') return '媒体还在保存中' if (asset.state === 'failed') return '这个媒体没能保存下来' return '这个媒体暂时无法打开'}const warnings: Record<string, string> = { 'resource omitted: unsupported type or resource limit': '部分媒体超出限制，没有保存。',}/** Adapter warnings are diagnostic strings; readers get plain wording. */export function warningText(warning: string) { return warnings[warning] || '部分内容没有完整保存。'}export function warningList(list?: string[] | null) { return [...new Set((list ?? []).map(warningText))]}/** One-paragraph preview for a list row. */export function excerpt(text: string, limit = 120) { const flat = text.replaceAll(/\s+/g, ' ').trim() return flat.length > limit ? `${flat.slice(0, limit)}…` : flat}