/**
 * Elements Routes – CRUD for elements
 */
import type { FastifyInstance } from 'fastify';
import type { DatabaseInterface, DBElement } from '../database/DatabaseInterface.js';

export function registerElementRoutes(fastify: FastifyInstance, db: DatabaseInterface) {
  // List elements for a drawing
  fastify.get('/api/drawings/:drawingId/elements', async (request) => {
    const { drawingId } = request.params as { drawingId: string };
    return db.listElements(drawingId);
  });

  // Create element
  fastify.post('/api/drawings/:drawingId/elements', async (request, reply) => {
    const { drawingId } = request.params as { drawingId: string };
    const body = request.body as Partial<DBElement>;
    return reply.code(201).send(db.createElement({ ...body, drawing_id: drawingId }));
  });

  // Update element
  fastify.patch('/api/elements/:id', async (request, reply) => {
    const { id } = request.params as { id: string };
    const body = request.body as Partial<DBElement>;
    const updated = db.updateElement(id, body);
    if (!updated) return reply.code(404).send({ error: 'Element not found' });
    return updated;
  });

  // Delete element
  fastify.delete('/api/elements/:id', async (request, reply) => {
    const { id } = request.params as { id: string };
    const ok = db.deleteElement(id);
    if (!ok) return reply.code(404).send({ error: 'Element not found' });
    return reply.code(204).send();
  });
}