import { Injectable } from '@nestjs/common';
import dayjs from 'dayjs';
import weekOfYear from 'dayjs/plugin/weekOfYear';
import { TemplateEngine } from '@application/ports';
dayjs.extend(weekOfYear);
@Injectable()
export class SimpleTemplateEngineService implements TemplateEngine {
renderDailyNote(template: string, date: string): string {
const d = dayjs(date);
let result = template;
result = this.replaceDateExpressions(result, d);
result = this.replaceFileTitle(result, date);
result = this.stripCursors(result);
return result;
}
renderWeeklyReview(template: string, date: string): string {
const d = dayjs(date);
let result = template;
result = this.replaceDateExpressions(result, d);
result = this.replaceFileTitle(result, `Weekly Review - ${d.format('YYYY-[W]ww')}`);
result = this.stripCursors(result);
// Strip dataview blocks since we handle queries programmatically
result = this.stripDataviewBlocks(result);
return result;
}
renderProject(template: string, name: string, area: string): string {
const d = dayjs();
let result = template;
result = this.replaceDateExpressions(result, d);
result = this.replaceFileTitle(result, name);
result = this.stripCursors(result);
// Replace the suggester call with the provided area
result = result.replace(
/<%\s*await\s+tp\.system\.suggester\([^)]+\)\s*%>/g,
area,
);
// Replace frontmatter area reference
result = result.replace(/<%\s*tp\.frontmatter\.area\s*%>/g, area);
return result;
}
private replaceDateExpressions(content: string, baseDate: dayjs.Dayjs): string {
// Match: <% tp.date.now("FORMAT") %> or <% tp.date.now("FORMAT", offset) %>
return content.replace(
/<%\s*tp\.date\.now\("([^"]+)"(?:\s*,\s*(-?\d+))?\)\s*%>/g,
(_match, format: string, offset?: string) => {
let d = baseDate;
if (offset) {
d = d.add(parseInt(offset, 10), 'day');
}
return d.format(format);
},
);
}
private replaceFileTitle(content: string, title: string): string {
return content.replace(/<%\s*tp\.file\.title\s*%>/g, title);
}
private stripCursors(content: string): string {
return content.replace(/<%\s*tp\.file\.cursor\(\d*\)\s*%>/g, '');
}
private stripDataviewBlocks(content: string): string {
return content.replace(/```dataview[\s\S]*?```/g, '');
}
}
