import type { FastifyInstance } from 'fastify';
import { z } from 'zod';
import { CreditKind } from '@prisma/client';
import { requireAdmin, requireEditor } from '../auth/guard.js';
import {
  bookAdjustment,
  bookCcPackage,
  bookKulanz,
  bookRedesignPackage,
  reverseGroup,
} from '../services/credits.js';
import { contextOf, idParam, optionalNote, parseWith } from './helpers.js';

const noteBody = z.object({ note: optionalNote });

export async function creditRoutes(app: FastifyInstance): Promise<void> {
  app.post('/api/players/:id/credits/cc-package', { preHandler: requireEditor }, async (request) => {
    const { id } = parseWith(idParam, request.params);
    const body = parseWith(noteBody, request.body ?? {});
    return bookCcPackage(id, contextOf(request), { note: body.note });
  });

  app.post(
    '/api/players/:id/credits/redesign-package',
    { preHandler: requireEditor },
    async (request) => {
      const { id } = parseWith(idParam, request.params);
      const body = parseWith(noteBody, request.body ?? {});
      return bookRedesignPackage(id, contextOf(request), { note: body.note });
    },
  );

  app.post('/api/players/:id/credits/kulanz', { preHandler: requireEditor }, async (request) => {
    const { id } = parseWith(idParam, request.params);
    const body = parseWith(noteBody, request.body ?? {});
    return bookKulanz(id, contextOf(request), { note: body.note });
  });

  app.post('/api/players/:id/credits/adjustment', { preHandler: requireAdmin }, async (request) => {
    const { id } = parseWith(idParam, request.params);
    const body = parseWith(
      z.object({
        kind: z.nativeEnum(CreditKind),
        amount: z.number().int().refine((v) => v !== 0, 'Betrag darf nicht 0 sein'),
        note: z.string().trim().min(1, 'Eine Begruendung ist Pflicht').max(500),
      }),
      request.body,
    );
    return bookAdjustment(id, body.kind, body.amount, body.note, contextOf(request));
  });

  app.post('/api/credits/:id/reverse', { preHandler: requireEditor }, async (request) => {
    const { id } = parseWith(idParam, request.params);
    const body = parseWith(
      z.object({ reason: z.string().trim().min(1, 'Eine Begruendung ist Pflicht').max(500) }),
      request.body,
    );
    return reverseGroup(id, body.reason, contextOf(request));
  });
}