import { PrismaClient } from '@prisma/client';
import bcrypt from 'bcryptjs';

const prisma = new PrismaClient();

async function main() {
  // -- Settings singleton --
  await prisma.settings.upsert({
    where: { id: 'singleton' },
    update: {},
    create: { id: 'singleton', pickupEnabled: true },
  });
  console.log('✓ Settings singleton ensured');

  // -- Initial admin --
  const email = (process.env.SEED_ADMIN_EMAIL ?? 'admin@example.com').toLowerCase();
  const password = process.env.SEED_ADMIN_PASSWORD ?? 'change-me';
  const name = process.env.SEED_ADMIN_NAME ?? 'Admin';

  const passwordHash = await bcrypt.hash(password, 12);
  await prisma.admin.upsert({
    where: { email },
    update: {},
    create: { email, name, passwordHash },
  });
  console.log(`✓ Admin ensured: ${email}`);

  // -- Products (example LPG cylinders) --
  const products = [
    {
      sku: 'P6',
      nameSv: 'Gasoltub P6',
      nameEn: 'LPG cylinder P6',
      descriptionSv: '6 kg gasol — för mindre kök och campingkök.',
      descriptionEn: '6 kg LPG — for smaller stoves and camping cooktops.',
      priceOre: 39900, // 399 kr
      sortOrder: 10,
    },
    {
      sku: 'P11',
      nameSv: 'Gasoltub P11',
      nameEn: 'LPG cylinder P11',
      descriptionSv: '11 kg gasol — vanligaste storleken för matlagning på läger.',
      descriptionEn: '11 kg LPG — most common size for cooking at camps.',
      priceOre: 64900, // 649 kr
      sortOrder: 20,
    },
    {
      sku: 'P19',
      nameSv: 'Gasoltub P19',
      nameEn: 'LPG cylinder P19',
      descriptionSv: '19 kg gasol — för större kök eller längre vistelse.',
      descriptionEn: '19 kg LPG — for larger kitchens or longer stays.',
      priceOre: 99900, // 999 kr
      sortOrder: 30,
    },
  ];

  for (const p of products) {
    await prisma.product.upsert({
      where: { sku: p.sku },
      update: {
        nameSv: p.nameSv,
        nameEn: p.nameEn,
        descriptionSv: p.descriptionSv,
        descriptionEn: p.descriptionEn,
        priceOre: p.priceOre,
        sortOrder: p.sortOrder,
      },
      create: { ...p, active: true, vatBp: 2500 },
    });
  }
  console.log(`✓ Seeded ${products.length} products`);

  // -- Pickup slots (example: 3 days × 2 slots) --
  const existing = await prisma.pickupSlot.count();
  if (existing === 0) {
    const baseDay = new Date();
    baseDay.setUTCHours(8, 0, 0, 0);
    // Place slots ~6 months out so they don't expire immediately.
    baseDay.setUTCMonth(baseDay.getUTCMonth() + 6);

    const slots = [
      { offsetDays: 0, startH: 9, endH: 12, labelSv: 'Dag 1 — Förmiddag', labelEn: 'Day 1 — Morning' },
      { offsetDays: 0, startH: 13, endH: 17, labelSv: 'Dag 1 — Eftermiddag', labelEn: 'Day 1 — Afternoon' },
      { offsetDays: 1, startH: 9, endH: 12, labelSv: 'Dag 2 — Förmiddag', labelEn: 'Day 2 — Morning' },
      { offsetDays: 1, startH: 13, endH: 17, labelSv: 'Dag 2 — Eftermiddag', labelEn: 'Day 2 — Afternoon' },
      { offsetDays: 2, startH: 9, endH: 12, labelSv: 'Dag 3 — Förmiddag', labelEn: 'Day 3 — Morning' },
    ];
    for (const s of slots) {
      const startsAt = new Date(baseDay);
      startsAt.setUTCDate(baseDay.getUTCDate() + s.offsetDays);
      startsAt.setUTCHours(s.startH, 0, 0, 0);
      const endsAt = new Date(startsAt);
      endsAt.setUTCHours(s.endH, 0, 0, 0);

      await prisma.pickupSlot.create({
        data: {
          labelSv: s.labelSv,
          labelEn: s.labelEn,
          startsAt,
          endsAt,
          capacity: 50,
          active: true,
        },
      });
    }
    console.log(`✓ Seeded ${slots.length} pickup slots`);
  } else {
    console.log(`• Pickup slots already exist (${existing}) — skipping`);
  }
}

main()
  .catch((e) => {
    console.error(e);
    process.exit(1);
  })
  .finally(async () => {
    await prisma.$disconnect();
  });