import { NextRequest, NextResponse } from 'next/server';
import { db } from '@/lib/db';
import { markdownToHtml, fillEmployeeName, fillPosition, fillStartDate, fillSalary } from '@/lib/api-helpers/pdf';
export const dynamic = 'force-dynamic';
/** Parse and validate request params. Returns null if invalid (with response). */
function parseRequest(req: NextRequest) {
const { searchParams } = new URL(req.url);
const id = searchParams.get('id');
if (!id) return { error: NextResponse.json({ error: 'id required' }, { status: 400 }) };
const templateId = Number.parseInt(id, 10);
if (Number.isNaN(templateId)) return { error: NextResponse.json({ error: 'Invalid id' }, { status: 400 }) };
return {
templateId,
employeeName: searchParams.get('employee') || '',
position: searchParams.get('position') || '',
startDate: searchParams.get('startDate') || '',
salary: searchParams.get('salary') || '',
};
}
/** Build the full HTML page with styles. */
function buildFullHtml(html: string, template: { title: string; templateCode: string; charsCount: number }): string {
return `
${template.title} — Panya-AI
${html}
`;
}
// GET /api/templates/pdf?id=123&employee=นาย+สมชาย+ใจดี
export async function GET(req: NextRequest) {
const parsed = parseRequest(req);
if ('error' in parsed) return parsed.error;
const template = await db.contractTemplate.findUnique({ where: { templateId: parsed.templateId } });
if (!template) return NextResponse.json({ error: 'Not found' }, { status: 404 });
let html = markdownToHtml(template.fullText || '');
html = fillEmployeeName(html, parsed.employeeName);
html = fillPosition(html, parsed.position);
html = fillStartDate(html, parsed.startDate);
html = fillSalary(html, parsed.salary);
const fullHtml = buildFullHtml(html, template);
return new NextResponse(fullHtml, {
headers: { 'Content-Type': 'text/html; charset=utf-8', 'Cache-Control': 'no-store' },
});
}