import 'dotenv/config';

import { PrismaPg } from '@prisma/adapter-pg';

import { PrismaClient } from '../lib/generated/prisma/client';

const connectionString = process.env.DATABASE_URL;

if (!connectionString) {
  throw new Error('DATABASE_URL is not set');
}

const prisma = new PrismaClient({ adapter: new PrismaPg({ connectionString }) });

/**
 * Placeholder reference week, to be corrected from /admin/horaires on first use.
 * Wednesday carries a lunch break on purpose: it exercises the multi-slot path
 * of the resolver from the very first run, rather than leaving it untested
 * against real data until someone happens to need it.
 *
 * dayOfWeek follows JS getDay(): 0 = Sunday .. 6 = Saturday.
 */
const WEEK: { dayOfWeek: number; isClosed: boolean; slots: { open: string; close: string }[] }[] = [
  { dayOfWeek: 0, isClosed: true, slots: [] },
  { dayOfWeek: 1, isClosed: true, slots: [] },
  { dayOfWeek: 2, isClosed: false, slots: [{ open: '10:00', close: '18:30' }] },
  {
    dayOfWeek: 3,
    isClosed: false,
    slots: [
      { open: '10:00', close: '13:00' },
      { open: '14:00', close: '18:30' },
    ],
  },
  { dayOfWeek: 4, isClosed: false, slots: [{ open: '10:00', close: '18:30' }] },
  { dayOfWeek: 5, isClosed: false, slots: [{ open: '10:00', close: '18:30' }] },
  { dayOfWeek: 6, isClosed: false, slots: [{ open: '10:00', close: '18:30' }] },
];

async function main(): Promise<void> {
  // Every write below is an upsert: running the seed twice must leave the
  // database exactly as running it once did.
  const settings = await prisma.settings.upsert({
    where: { id: 'singleton' },
    update: {},
    create: { id: 'singleton' },
  });

  for (const day of WEEK) {
    await prisma.weeklySchedule.upsert({
      where: { dayOfWeek: day.dayOfWeek },
      update: {},
      create: { dayOfWeek: day.dayOfWeek, isClosed: day.isClosed, slots: day.slots },
    });
  }

  await prisma.syncState.upsert({
    where: { key: 'holidays' },
    update: {},
    create: { key: 'holidays' },
  });

  const openDays = WEEK.filter((day) => !day.isClosed).length;
  console.log(`Seeded settings for "${settings.shopName}" and ${openDays} open days.`);
  console.log('Adjust the reference week from /admin/horaires.');
}

main()
  .catch((error: unknown) => {
    console.error(error);
    process.exitCode = 1;
  })
  .finally(() => {
    void prisma.$disconnect();
  });