import type { Request, Response } from 'express';
import {
  createVisit,
  deleteVisit,
  getVisit,
  listVisits,
  updateVisit
} from './visit.service';
import { visitInputSchema, visitUpdateSchema } from './visit.types';
import { toVisitDto } from './visit.mapper';

export async function listVisitsHandler(_req: Request, res: Response) {
  const visits = await listVisits();
  res.json(visits.map(toVisitDto));
}

export async function createVisitHandler(req: Request, res: Response) {
  const parsed = visitInputSchema.safeParse(req.body);
  if (!parsed.success) {
    return res.status(400).json({ errors: parsed.error.flatten() });
  }
  const visit = await createVisit(parsed.data);
  res.status(201).json(toVisitDto(visit));
}

export async function getVisitHandler(req: Request, res: Response) {
  const visit = await getVisit(req.params.id);
  if (!visit) {
    return res.status(404).json({ message: 'Visit not found' });
  }
  res.json(toVisitDto(visit));
}

export async function updateVisitHandler(req: Request, res: Response) {
  const parsed = visitUpdateSchema.safeParse(req.body);
  if (!parsed.success) {
    return res.status(400).json({ errors: parsed.error.flatten() });
  }
  const visit = await updateVisit(req.params.id, parsed.data);
  if (!visit) {
    return res.status(404).json({ message: 'Visit not found' });
  }
  res.json(toVisitDto(visit));
}

export async function deleteVisitHandler(req: Request, res: Response) {
  await deleteVisit(req.params.id);
  res.status(204).send();
}