import * as z from 'zod';

import {
  apiError,
  apiSuccess,
  emailSchema,
  requiredString,
} from '@kit/next/route-helpers';
import { getLogger } from '@kit/shared/logger';
import { getSupabaseServerAdminClient } from '@kit/supabase/server-admin-client';

const MembershipApplySchema = z.object({
  accountId: requiredString('Konto-ID'),
  firstName: requiredString('Vorname'),
  lastName: requiredString('Nachname'),
  email: emailSchema,
  phone: z.string().optional(),
  street: z.string().optional(),
  postalCode: z.string().optional(),
  city: z.string().optional(),
  dateOfBirth: z.string().optional(),
  message: z.string().optional(),
});

export async function POST(request: Request) {
  const logger = await getLogger();

  try {
    const body = await request.json();
    const parsed = MembershipApplySchema.safeParse(body);

    if (!parsed.success) {
      return apiError(parsed.error.issues[0]?.message ?? 'Ungültige Eingabe');
    }

    const {
      accountId,
      firstName,
      lastName,
      email,
      phone,
      street,
      postalCode,
      city,
      dateOfBirth,
      message,
    } = parsed.data;

    const supabase = getSupabaseServerAdminClient();

    const { error } = await supabase.from('membership_applications').insert({
      account_id: accountId,
      first_name: firstName,
      last_name: lastName,
      email,
      phone: phone || null,
      street: street || null,
      postal_code: postalCode || null,
      city: city || null,
      date_of_birth: dateOfBirth || null,
      message: message || null,
      status: 'submitted',
    });

    if (error) {
      logger.error(
        { error, context: 'membership-apply-insert' },
        '[membership-apply] Insert error',
      );
      return apiError('Bewerbung fehlgeschlagen', 500);
    }

    return apiSuccess({ message: 'Bewerbung erfolgreich eingereicht' });
  } catch (err) {
    logger.error(
      { error: err, context: 'membership-apply' },
      '[membership-apply] Error',
    );
    return apiError('Serverfehler', 500);
  }
}