72 lines
2.3 KiB
TypeScript
72 lines
2.3 KiB
TypeScript
 
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import { jalaliToDate } from '@/lib/jalali';
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export type ActivityThreadEntry = {
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at: Date | null;
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dateLabel: string;
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timeLabel: string;
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author: string;
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body: string;
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};
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const STAMP = /^\[(.+?) ساعت (\S+?)(?: — (.+))?\]$/;
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/** یادداشت فعالیت را به نظرهای جدا با مهر تاریخ/ساعت/نویسنده تبدیل میکند. */
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export function parseActivityThread(raw: string | null | undefined): ActivityThreadEntry[] | null {
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const text = (raw ?? '').replace(/\r\n/g, '\n').trim();
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if (!text) return null;
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const entries: ActivityThreadEntry[] = [];
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const preamble: string[] = [];
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let current: ActivityThreadEntry | null = null;
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let sawStamp = false;
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for (const line of text.split('\n')) {
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const match = line.trim().match(STAMP);
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if (match) {
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sawStamp = true;
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if (current) entries.push(trimEntry(current));
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current = {
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at: stampToDate(match[1] ?? '', match[2] ?? ''),
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dateLabel: (match[1] ?? '').trim(),
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timeLabel: (match[2] ?? '').trim(),
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author: (match[3] ?? '').trim(),
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body: '',
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};
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continue;
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}
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if (current) current.body += `${current.body ? '\n' : ''}${line}`;
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else preamble.push(line);
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}
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if (current) entries.push(trimEntry(current));
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if (!sawStamp) return null;
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const head = preamble.join('\n').trim();
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if (head) {
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entries.unshift({ at: null, dateLabel: '', timeLabel: '', author: '', body: head });
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}
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return entries;
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}
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function trimEntry(entry: ActivityThreadEntry): ActivityThreadEntry {
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return { ...entry, body: entry.body.trim() };
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}
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function latinDigits(value: string): string {
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const fa = '۰۱۲۳۴۵۶۷۸۹';
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const ar = '٠١٢٣٤٥٦٧٨٩';
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return value.replace(/[۰-۹٠-٩]/g, (ch) => {
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const faIndex = fa.indexOf(ch);
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return String(faIndex >= 0 ? faIndex : ar.indexOf(ch));
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});
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}
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function stampToDate(dateLabel: string, timeLabel: string): Date | null {
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const date = latinDigits(dateLabel).match(/(\d{4})\/(\d{1,2})\/(\d{1,2})/);
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if (!date) return null;
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const at = jalaliToDate(Number(date[1]), Number(date[2]), Number(date[3]));
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if (Number.isNaN(at.getTime())) return null;
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const time = latinDigits(timeLabel).match(/(\d{1,2}):(\d{2})/);
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if (time) at.setHours(Number(time[1]), Number(time[2]), 0, 0);
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return at;
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}
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