import {
  AdminRole,
  Customer,
  CustomerKind,
  OrderChannel,
  PrismaClient,
  VerificationStep,
} from '@prisma/client';
import * as bcrypt from 'bcryptjs';
import { ALL_RIDS } from '../src/modules/auth/acl.constants';

const prisma = new PrismaClient();

// Real bcrypt hash of DEV_PASSWORD, so seeded accounts can actually log in.
// Development credentials only — never seed these into a real deployment.
const DEV_PASSWORD = 'admin1234';
const PLACEHOLDER_PASSWORD_HASH = bcrypt.hashSync(DEV_PASSWORD, 10);

// A single number authorized to sign in to BOTH apps for local development,
// with its password (admin panel) equal to the number itself. DEV-ONLY: this
// file is never run against a real deployment — only by hand via
// `pnpm prisma:seed` / `npx prisma db seed` against a local database.
const DEV_TEST_PHONE = '09128081392';
const DEV_TEST_PHONE_PASSWORD_HASH = bcrypt.hashSync(DEV_TEST_PHONE, 10);

// Served from the user-app's own public/ folder. This is the same placeholder
// image the legacy app used for missing/failed product imagery (no-items.png).
// Replace these rows with real photo URLs when product photography exists.
const PLACEHOLDER_PRODUCT_IMAGE = '/img/no-items.png';

/**
 * Role definitions and their permissions — the one part of this file a real
 * deployment needs (the admin screens and the legacy import map onto these
 * ids). Idempotent: upserts and skipDuplicates only.
 */
async function seedAccessControl() {
  // ── Admin user types + permissions (legacy `permission(rid, ut)`) ────
  //
  // In legacy these lived in the dynamic `config_static` lookup under the key
  // `__list__ut` and were created from the UI (views/user/Permission.vue), so
  // there is no legacy seeder to copy. Id 85 is seeded because Permission.vue
  // hardcodes it as the default selection (`setFieldsValue({ut:"85"})`).
  //
  // Only leaf rids are stored; ancestors are derived at runtime by
  // expandWithParents() / checkParent(), exactly as legacy did.
  const userTypes: { id: number; title: string; rids: readonly string[] }[] = [
    // Full access — every rid the routers gate.
    { id: 85, title: 'مدیر ارشد', rids: ALL_RIDS },
    {
      id: 86,
      title: 'کارشناس فروش',
      rids: [
        'order.list', 'order.create', 'order.omde', 'order.makeOrder',
        'persons.list.client.omde', 'persons.list.client.omde.view',
        'persons.list.client.single', 'persons.list.client.single.view',
        'persons.create', 'product.list', 'dashboard.view', 'comment',
      ],
    },
    {
      id: 87,
      title: 'حسابدار',
      rids: [
        'document.list', 'document.create', 'document.list.edit',
        'invoice.list', 'invoice.create', 'wallet', 'config.wallet',
        'report.order.item', 'report.product', 'config.report', 'dashboard.view',
      ],
    },
    {
      id: 88,
      title: 'سرپرست کارگاه',
      rids: ['workshop.list', 'workshop.create', 'order.tamin', 'order.list', 'product.list'],
    },
    {
      id: 89,
      title: 'کاربر شعبه',
      rids: ['buy.order.list', 'order.create', 'persons.create', 'branch.list'],
    },
  ];

  for (const ut of userTypes) {
    await prisma.userType.upsert({
      where: { id: ut.id },
      update: { title: ut.title },
      create: { id: ut.id, title: ut.title },
    });
    await prisma.permission.createMany({
      data: ut.rids.map((rid) => ({ rid, userTypeId: ut.id })),
      skipDuplicates: true,
    });
  }
}

/**
 * Everything below is DEMO data: sample cities, branches, accounts with known
 * passwords (one super admin whose password is its own phone number), sample
 * customers, products, orders and posted debt. The app runs this seed once on
 * a fresh database at boot (src/prisma/bootstrap.ts), so without this gate a
 * production first boot would mix fake customers, fake debt and open admin
 * accounts into the real data (SEC-05). Production never gets it unless
 * SEED_DEMO_DATA=true is set on purpose.
 */
function demoDataAllowed(): boolean {
  if (process.env.SEED_DEMO_DATA?.trim() === 'true') return true;
  return process.env.NODE_ENV !== 'production';
}

async function main() {
  await seedAccessControl();

  if (!demoDataAllowed()) {
    console.log('seed: production — roles and permissions only; demo data skipped (set SEED_DEMO_DATA=true to force)');
    return;
  }

  // ── Cities ────────────────────────────────────────────────────────────
  // A tree, as legacy's: country > province > city. The country is a heading
  // in the admin pickers; provinces and cities are selectable.
  const city = (id: string, name: string, parentId: string | null) =>
    prisma.city.upsert({ where: { id }, update: {}, create: { id, name, parentId } });
  await city('city-iran', 'ایران', null);
  await Promise.all([
    city('city-prov-tehran', 'استان تهران', 'city-iran'),
    city('city-prov-khorasan-razavi', 'استان خراسان رضوی', 'city-iran'),
    city('city-prov-isfahan', 'استان اصفهان', 'city-iran'),
    city('city-prov-east-azarbaijan', 'استان آذربایجان شرقی', 'city-iran'),
  ]);
  const [tehran, mashhad, isfahan, tabriz] = await Promise.all([
    city('city-tehran', 'تهران', 'city-prov-tehran'),
    city('city-mashhad', 'مشهد', 'city-prov-khorasan-razavi'),
    city('city-isfahan', 'اصفهان', 'city-prov-isfahan'),
    city('city-tabriz', 'تبریز', 'city-prov-east-azarbaijan'),
  ]);

  // ── Branches & workshop ──────────────────────────────────────────────
  const branchTehran = await prisma.branch.upsert({
    where: { id: 'branch-tehran-bazaar' },
    update: {},
    create: { id: 'branch-tehran-bazaar', name: 'شعبه بازار بزرگ تهران', cityId: tehran.id },
  });
  const branchMashhad = await prisma.branch.upsert({
    where: { id: 'branch-mashhad-main' },
    update: {},
    create: { id: 'branch-mashhad-main', name: 'شعبه مرکزی مشهد', cityId: mashhad.id },
  });
  await prisma.workshop.upsert({
    where: { id: 'workshop-central' },
    update: {},
    create: { id: 'workshop-central', name: 'کارگاه مرکزی ساخت طلا' },
  });

  // ── Admin users (sales agents + one super admin) ────────────────────

  // DEV-ONLY test login, per explicit request: authorized in BOTH the admin
  // panel and the user-app, password = the phone number itself. Super admin
  // so it can reach every screen while testing. Do not carry this into a real
  // deployment's seed data.
  await prisma.adminUser.upsert({
    where: { mobile: DEV_TEST_PHONE },
    update: { passwordHash: DEV_TEST_PHONE_PASSWORD_HASH, userTypeId: 85, branchId: null },
    create: {
      mobile: DEV_TEST_PHONE,
      fullName: 'کاربر تست توسعه',
      passwordHash: DEV_TEST_PHONE_PASSWORD_HASH,
      role: AdminRole.SUPER_ADMIN,
      userTypeId: 85,
      branchId: null,
    },
  });

  await prisma.adminUser.upsert({
    where: { mobile: '09120000001' },
    update: { passwordHash: PLACEHOLDER_PASSWORD_HASH, userTypeId: 85, branchId: null },
    create: {
      mobile: '09120000001',
      fullName: 'مدیر ارشد سیستم',
      passwordHash: PLACEHOLDER_PASSWORD_HASH,
      role: AdminRole.SUPER_ADMIN,
      userTypeId: 85,
      // Head office: deliberately branch-less. Legacy scoped every list by
      // branch_id whenever the user had one, so head-office staff must have none
      // or they would see only a single branch's data.
      branchId: null,
    },
  });
  const agentReza = await prisma.adminUser.upsert({
    where: { mobile: '09121234567' },
    update: { passwordHash: PLACEHOLDER_PASSWORD_HASH, userTypeId: 86 },
    create: {
      mobile: '09121234567',
      fullName: 'رضا احمدی',
      passwordHash: PLACEHOLDER_PASSWORD_HASH,
      role: AdminRole.SALES_EXPERT,
      userTypeId: 86,
      branchId: branchTehran.id,
      wagePercent: 1.5,
    },
  });
  const agentSara = await prisma.adminUser.upsert({
    where: { mobile: '09129876543' },
    update: { passwordHash: PLACEHOLDER_PASSWORD_HASH, userTypeId: 86 },
    create: {
      mobile: '09129876543',
      fullName: 'سارا کریمی',
      passwordHash: PLACEHOLDER_PASSWORD_HASH,
      role: AdminRole.SALES_EXPERT,
      userTypeId: 86,
      branchId: branchMashhad.id,
      wagePercent: 1.2,
    },
  });
  await prisma.adminUser.upsert({
    where: { mobile: '09123334444' },
    update: { passwordHash: PLACEHOLDER_PASSWORD_HASH, userTypeId: 88 },
    create: {
      mobile: '09123334444',
      fullName: 'هومن یزدانی',
      passwordHash: PLACEHOLDER_PASSWORD_HASH,
      role: AdminRole.WORKSHOP_SUPERVISOR,
      userTypeId: 88,
    },
  });
  await prisma.adminUser.upsert({
    where: { mobile: '09125556666' },
    update: { passwordHash: PLACEHOLDER_PASSWORD_HASH, userTypeId: 87, branchId: null },
    create: {
      mobile: '09125556666',
      fullName: 'فرزانه محمودی',
      passwordHash: PLACEHOLDER_PASSWORD_HASH,
      role: AdminRole.ACCOUNTANT,
      userTypeId: 87,
      branchId: null,
    },
  });

  // ── Customers ────────────────────────────────────────────────────────
  const customerData = [
    {
      // DEV-ONLY test login, per explicit request: same number as the admin
      // panel account above, so it can also sign in to the user-app (OTP step
      // matches on mobile against a real seeded customer — see LoginView.vue).
      // Fully verified so no onboarding step blocks it. Not for a real deployment.
      id: 'customer-dev-test',
      kind: CustomerKind.APP_SHOPKEEPER,
      memberCode: 'DEV-TEST',
      fullName: 'کاربر تست توسعه',
      mobile: DEV_TEST_PHONE,
      nationalCode: '0000000000',
      cityId: tehran.id,
      referredByAgentId: null,
      goldCreditLimitGrams: '1000',
      verificationStep: VerificationStep.VERIFIED,
    },
    {
      id: 'customer-1',
      kind: CustomerKind.BANKER,
      storeName: 'طلای محمدی', pasazhName: 'پاساژ بزرگ', zone: 'بازار', memberCode: 'M-1001', phone: '02133445566', address: 'تهران، بازار بزرگ، پلاک ۱۲',
      fullName: 'علی محمدی',
      mobile: '09151112233',
      nationalCode: '0012345678',
      cityId: tehran.id,
      referredByAgentId: agentReza.id,
      goldCreditLimitGrams: '200',
      verificationStep: VerificationStep.VERIFIED,
    },
    {
      id: 'customer-2',
      kind: CustomerKind.APP_SHOPKEEPER,
      storeName: 'گالری حسینی', zone: 'ونک', memberCode: 'M-1002', phone: '02188776655',
      fullName: 'مریم حسینی',
      mobile: '09151112234',
      nationalCode: '0012345679',
      cityId: tehran.id,
      referredByAgentId: agentReza.id,
      goldCreditLimitGrams: '100',
      verificationStep: VerificationStep.VERIFIED,
    },
    {
      id: 'customer-3',
      kind: CustomerKind.WALK_IN_SHOPKEEPER,
      storeName: 'زرگری نوروزی', pasazhName: 'پاساژ رضا', zone: 'طرق', memberCode: 'M-1003',
      fullName: 'جواد نوروزی',
      mobile: '09151112235',
      nationalCode: '0012345680',
      cityId: mashhad.id,
      referredByAgentId: agentSara.id,
      goldCreditLimitGrams: '50',
      verificationStep: VerificationStep.STEP_TWO_SUBMITTED,
    },
    {
      id: 'customer-4',
      kind: CustomerKind.APP_SHOPKEEPER,
      memberCode: 'M-1004',
      fullName: 'نرگس ابراهیمی',
      mobile: '09151112236',
      nationalCode: '0012345681',
      cityId: isfahan.id,
      referredByAgentId: null,
      goldCreditLimitGrams: '30',
      verificationStep: VerificationStep.UNVERIFIED,
      // archived, so the "لیست بایگانی" grid has a row and the type lists
      // correctly exclude it
      isArchived: true,
    },
    {
      id: 'customer-5',
      kind: CustomerKind.BANKER,
      storeName: 'صادقی و پسران', zone: 'بازار', memberCode: 'M-1005', phone: '02155443322',
      fullName: 'کامران صادقی',
      mobile: '09151112237',
      nationalCode: '0012345682',
      cityId: tehran.id,
      referredByAgentId: agentReza.id,
      goldCreditLimitGrams: '500',
      verificationStep: VerificationStep.VERIFIED,
    },
    {
      id: 'customer-6',
      kind: CustomerKind.WALK_IN_SHOPKEEPER,
      storeName: 'طلاسرای قاسمی', zone: 'ائل گلی', memberCode: 'M-1006',
      fullName: 'زهرا قاسمی',
      mobile: '09151112238',
      nationalCode: '0012345683',
      cityId: tabriz.id,
      referredByAgentId: agentSara.id,
      goldCreditLimitGrams: '80',
      verificationStep: VerificationStep.STEP_ONE_SUBMITTED,
    },
  ];

  const customers: Customer[] = [];
  for (const c of customerData) {
    customers.push(
      await prisma.customer.upsert({
        where: { id: c.id },
        // Re-assert the DESCRIPTIVE fields on an existing row so a re-seed
        // backfills columns added after that row was first created. Balances,
        // verification state and credit limits are deliberately NOT touched —
        // those are live data a re-seed must never overwrite.
        update: {
          kind: c.kind,
          phone: 'phone' in c ? c.phone : null,
          address: 'address' in c ? c.address : null,
          storeName: 'storeName' in c ? c.storeName : null,
          pasazhName: 'pasazhName' in c ? c.pasazhName : null,
          zone: 'zone' in c ? c.zone : null,
          memberCode: c.memberCode,
          isArchived: 'isArchived' in c ? c.isArchived : false,
        },
        create: {
          id: c.id,
          fullName: c.fullName,
          mobile: c.mobile,
          nationalCode: c.nationalCode,
          passwordHash: PLACEHOLDER_PASSWORD_HASH,
          cityId: c.cityId,
          referredByAgentId: c.referredByAgentId,
          goldCreditLimitGrams: c.goldCreditLimitGrams,
          verificationStep: c.verificationStep,
          kind: c.kind,
          phone: 'phone' in c ? c.phone : null,
          address: 'address' in c ? c.address : null,
          storeName: 'storeName' in c ? c.storeName : null,
          pasazhName: 'pasazhName' in c ? c.pasazhName : null,
          zone: 'zone' in c ? c.zone : null,
          memberCode: c.memberCode,
          isArchived: 'isArchived' in c ? c.isArchived : false,
        },
      }),
    );
  }
  // Looked up by id rather than array position — a positional destructure here
  // silently breaks (wrong customer, no error) the moment a row is added or
  // reordered above, as happened when the dev-test login row was inserted first.
  const byId = (id: string) => customers.find((c) => c.id === id)!;
  const customer1 = byId('customer-1');
  const customer2 = byId('customer-2');
  const customer5 = byId('customer-5');

  // ── Catalog: categories, brands, products, variants ────────────────
  const [ringsCategory, braceletsCategory, necklacesCategory, earringsCategory, coinsCategory] = await Promise.all([
    prisma.category.upsert({ where: { id: 'cat-rings' }, update: {}, create: { id: 'cat-rings', title: 'انگشتر' } }),
    prisma.category.upsert({ where: { id: 'cat-bracelets' }, update: {}, create: { id: 'cat-bracelets', title: 'دستبند' } }),
    prisma.category.upsert({ where: { id: 'cat-necklaces' }, update: {}, create: { id: 'cat-necklaces', title: 'گردنبند' } }),
    prisma.category.upsert({ where: { id: 'cat-earrings' }, update: {}, create: { id: 'cat-earrings', title: 'گوشواره' } }),
    prisma.category.upsert({ where: { id: 'cat-coins' }, update: {}, create: { id: 'cat-coins', title: 'سکه و شمش' } }),
  ]);

  const brandMontzar = await prisma.brand.upsert({
    where: { id: 'brand-henza' },
    update: { title: 'منتزر طلا' },
    create: { id: 'brand-henza', title: 'منتزر طلا' },
  });
  const brandArtisan = await prisma.brand.upsert({
    where: { id: 'brand-artisan' },
    update: {},
    create: { id: 'brand-artisan', title: 'مجموعه صنعتگر' },
  });

  const productDefs = [
    {
      id: 'product-classic-ring',
      title: 'انگشتر تک نگین کلاسیک',
      description: 'انگشتر طلای ۱۸ عیار با طراحی ساده و مینیمال.',
      categoryId: ringsCategory.id,
      brandId: brandMontzar.id,
      variants: [
        { id: 'variant-ring-size-6', title: 'سایز ۶', sku: 'RING-CLASSIC-6', rashWeightGrams: '2.850', defaultWagePercent: '9.0' },
        { id: 'variant-ring-size-7', title: 'سایز ۷', sku: 'RING-CLASSIC-7', rashWeightGrams: '3.100', defaultWagePercent: '9.0' },
      ],
    },
    {
      id: 'product-woven-bracelet',
      title: 'دستبند بافت زنجیری',
      description: 'دستبند بافت‌دار دست‌ساز از طلای ۱۸ عیار.',
      categoryId: braceletsCategory.id,
      brandId: brandArtisan.id,
      variants: [
        { id: 'variant-bracelet-standard', title: 'استاندارد ۱۸ سانتی', sku: 'BRC-WOVEN-18', rashWeightGrams: '14.200', defaultWagePercent: '11.5' },
      ],
    },
    {
      id: 'product-pendant-necklace',
      title: 'گردنبند آویز اشکی',
      description: 'گردنبند ظریف با آویز اشکی و زنجیر نازک.',
      categoryId: necklacesCategory.id,
      brandId: brandMontzar.id,
      variants: [
        { id: 'variant-necklace-40cm', title: 'زنجیر ۴۰ سانتی', sku: 'NCK-TEARDROP-40', rashWeightGrams: '5.600', defaultWagePercent: '10.0' },
        { id: 'variant-necklace-45cm', title: 'زنجیر ۴۵ سانتی', sku: 'NCK-TEARDROP-45', rashWeightGrams: '6.100', defaultWagePercent: '10.0' },
      ],
    },
    {
      id: 'product-hoop-earrings',
      title: 'گوشواره حلقه‌ای کلاسیک',
      description: 'گوشواره حلقه‌ای طلای ۱۸ عیار مناسب استفاده روزمره.',
      categoryId: earringsCategory.id,
      brandId: brandArtisan.id,
      variants: [
        { id: 'variant-hoop-small', title: 'کوچک', sku: 'ERG-HOOP-S', rashWeightGrams: '1.900', defaultWagePercent: '8.5' },
        { id: 'variant-hoop-large', title: 'بزرگ', sku: 'ERG-HOOP-L', rashWeightGrams: '3.400', defaultWagePercent: '8.5' },
      ],
    },
    {
      id: 'product-full-coin',
      title: 'سکه تمام بهار آزادی',
      description: 'سکه طلای تمام بهار آزادی، عیار استاندارد.',
      categoryId: coinsCategory.id,
      brandId: brandMontzar.id,
      variants: [
        { id: 'variant-coin-full', title: 'تمام سکه', sku: 'COIN-FULL', rashWeightGrams: '8.133', defaultWagePercent: '2.0' },
        { id: 'variant-coin-half', title: 'نیم سکه', sku: 'COIN-HALF', rashWeightGrams: '4.066', defaultWagePercent: '2.5' },
      ],
    },
  ];

  const createdVariantIds: Record<string, string> = {};
  let imageCount = 0;
  for (const p of productDefs) {
    const product = await prisma.product.upsert({
      where: { id: p.id },
      update: {},
      create: {
        id: p.id,
        title: p.title,
        description: p.description,
        categoryId: p.categoryId,
        brandId: p.brandId,
      },
    });
    for (const v of p.variants) {
      await prisma.productVariant.upsert({
        where: { id: v.id },
        update: {},
        create: {
          id: v.id,
          productId: product.id,
          title: v.title,
          sku: v.sku,
          rashWeightGrams: v.rashWeightGrams,
          defaultWagePercent: v.defaultWagePercent,
        },
      });
      createdVariantIds[v.id] = v.id;
    }

    // Product photography does not exist in this project: legacy served it from
    // the old Laravel host (Product.thumb.full), so there is nothing to migrate.
    // Seed the placeholder the legacy app itself used for missing imagery so
    // every product card renders an image instead of collapsing to nothing.
    await prisma.productImage.upsert({
      where: { id: `${p.id}-img-1` },
      update: { url: PLACEHOLDER_PRODUCT_IMAGE },
      create: {
        id: `${p.id}-img-1`,
        productId: product.id,
        url: PLACEHOLDER_PRODUCT_IMAGE,
        sortOrder: 0,
      },
    });
    imageCount += 1;
  }

  // ── Featured collection ──────────────────────────────────────────────
  const featured = await prisma.collection.upsert({
    where: { id: 'collection-featured' },
    update: {},
    create: { id: 'collection-featured', title: 'پرفروش‌های این هفته', description: 'منتخبی از محبوب‌ترین محصولات فروشگاه.' },
  });
  await prisma.collectionProduct.upsert({
    where: { collectionId_productId: { collectionId: featured.id, productId: 'product-classic-ring' } },
    update: {},
    create: { collectionId: featured.id, productId: 'product-classic-ring' },
  });
  await prisma.collectionProduct.upsert({
    where: { collectionId_productId: { collectionId: featured.id, productId: 'product-pendant-necklace' } },
    update: {},
    create: { collectionId: featured.id, productId: 'product-pendant-necklace' },
  });
  await prisma.collectionProduct.upsert({
    where: { collectionId_productId: { collectionId: featured.id, productId: 'product-full-coin' } },
    update: {},
    create: { collectionId: featured.id, productId: 'product-full-coin' },
  });

  // ── Gold price quote (illustrative, not live-market-accurate) ───────
  await prisma.goldPriceQuote.create({
    data: { karatPerMille: 750, pricePerGramRial: '61500000', source: 'seed-illustrative' },
  });

  // A RETAIL order, so the single-sale grid (legacy `POST single-order`) has a
  // row of its own. Legacy kept the two channels in separate tables; here they
  // are separated by Order.channel.
  const existingRetail = await prisma.order.findUnique({
    where: { orderNumber: 'ORD-SEED-0002' },
  });
  if (!existingRetail) {
    const rash = '2.400';
    const wage = 7.5;
    const computed = (parseFloat(rash) * (1 + wage / 100)).toFixed(4);
    await prisma.order.create({
      data: {
        orderNumber: 'ORD-SEED-0002',
        customerId: customer2.id,
        branchId: branchTehran.id,
        channel: OrderChannel.RETAIL,
        status: 'PLACED',
        totalGoldWeightGrams: computed,
        wageWeightGrams: (parseFloat(computed) - parseFloat(rash)).toFixed(4),
        flatRialCharge: '0',
        items: {
          create: [
            {
              productVariantId: 'variant-ring-size-7',
              quantity: 1,
              rashWeightGramsSnapshot: rash,
              wagePercentSnapshot: wage.toString(),
              discountPercentSnapshot: '0',
              computedWeightGrams: computed,
              flatRialCharge: '0',
            },
          ],
        },
        statusEvents: { create: [{ toStatus: 'PLACED' }] },
      },
    });
  }

  // Order.channel was added after these demo rows first existed, so a re-seed
  // corrects the channel on the two named seed orders. Scoped to those exact
  // order numbers — it must never rewrite real orders.
  await prisma.order.updateMany({
    where: { orderNumber: 'ORD-SEED-0001' },
    data: { channel: OrderChannel.WHOLESALE },
  });
  await prisma.order.updateMany({
    where: { orderNumber: 'ORD-SEED-0002' },
    data: { channel: OrderChannel.RETAIL },
  });

  // ── A delivered order + posted debt, so the dashboard shows real numbers ──
  const existingDemoOrder = await prisma.order.findUnique({ where: { orderNumber: 'ORD-SEED-0001' } });
  if (!existingDemoOrder) {
    const rashWeight = '3.100'; // variant-ring-size-7
    const wagePercent = 9.0;
    const discountPercent = 0;
    const computedWeight = (parseFloat(rashWeight) * (1 + (wagePercent - discountPercent) / 100)).toFixed(4);
    const quantity = 1;
    const flatRialChargePerUnit = '500000'; // e.g. a small stone-setting fee

    const order = await prisma.order.create({
      data: {
        orderNumber: 'ORD-SEED-0001',
        customerId: customer1.id,
        branchId: branchTehran.id,
        // customer1 is a بنکدار, so this belongs to the wholesale grid
        channel: OrderChannel.WHOLESALE,
        status: 'DELIVERED_TO_CUSTOMER',
        totalGoldWeightGrams: computedWeight,
        wageWeightGrams: (parseFloat(computedWeight) - parseFloat(rashWeight)).toFixed(4),
        flatRialCharge: flatRialChargePerUnit,
        deliveredAt: new Date(),
        items: {
          create: [
            {
              productVariantId: 'variant-ring-size-7',
              quantity,
              rashWeightGramsSnapshot: rashWeight,
              wagePercentSnapshot: wagePercent.toString(),
              discountPercentSnapshot: discountPercent.toString(),
              computedWeightGrams: computedWeight,
              flatRialCharge: flatRialChargePerUnit,
            },
          ],
        },
        statusEvents: {
          create: [{ toStatus: 'PLACED' }, { toStatus: 'ADMIN_APPROVED' }, { toStatus: 'DELIVERED_TO_CUSTOMER' }],
        },
      },
    });

    await prisma.ledgerEntry.create({
      data: {
        customerId: customer1.id,
        currency: 'GOLD_GRAM',
        direction: 'DEBIT',
        sourceType: 'ORDER_STOCK',
        amount: computedWeight,
        orderId: order.id,
        confirmed: true,
        confirmedAt: new Date(),
        note: 'بدهی وزنی طلا هنگام تحویل (داده آزمایشی)',
      },
    });
    await prisma.ledgerEntry.create({
      data: {
        customerId: customer1.id,
        currency: 'RIAL',
        direction: 'DEBIT',
        sourceType: 'ORDER_STOCK',
        amount: flatRialChargePerUnit,
        orderId: order.id,
        confirmed: true,
        confirmedAt: new Date(),
        note: 'هزینه ثابت ریالی هنگام تحویل (داده آزمایشی)',
      },
    });
    await prisma.customer.update({
      where: { id: customer1.id },
      data: { goldDebtGrams: { increment: computedWeight }, fiatDebtRial: { increment: flatRialChargePerUnit } },
    });

    // A pending repayment awaiting admin confirmation, to demo the confirm flow.
    await prisma.ledgerEntry.create({
      data: {
        customerId: customer1.id,
        currency: 'GOLD_GRAM',
        direction: 'CREDIT',
        sourceType: 'REPAYMENT_MELTED_GOLD',
        amount: '1.5000',
        karatPerMille: 750,
        confirmed: false,
        note: 'تسویه با طلای آب‌شده، در انتظار تایید (داده آزمایشی)',
      },
    });
  }

  // customer2 and customer5 get existing debt/credit variety for the dashboard.
  await prisma.customer.update({ where: { id: customer2.id }, data: { goldDebtGrams: '8.2500', fiatDebtRial: '2000000' } });
  await prisma.customer.update({ where: { id: customer5.id }, data: { goldDebtGrams: '0', fiatDebtRial: '0' } });

  // ── Pre-orders (legacy "سفارش های ساختنی" / custom orders) ──────────
  // Design requests an admin prices and later converts into a real Order.
  // Seeded so the MakeOrder grid has rows to render.
  const preOrderSeeds = [
    {
      id: 'preorder-0001',
      customerId: customer2.id,
      cityId: tehran.id,
      status: 'PLACED' as const,
      colorName: 'رزگلد',
      sizeSpec: '۱۶',
      stoneColor: 'سفید',
      minaColor: 'آبی',
      description: 'انگشتر طرح سنتی با نگین سفید',
      estimatedWeightGrams: '4.5000',
    },
    {
      id: 'preorder-0002',
      customerId: customer5.id,
      cityId: mashhad.id,
      status: 'ADMIN_APPROVED' as const,
      colorName: 'زرد',
      sizeSpec: '۱۸',
      stoneColor: 'قرمز',
      minaColor: 'سبز',
      description: 'دستبند مینا کاری',
      estimatedWeightGrams: '9.2500',
    },
  ];
  for (const po of preOrderSeeds) {
    await prisma.preOrder.upsert({
      where: { id: po.id },
      update: {},
      create: po,
    });
  }

  // ── Product comments (legacy `comment` table) ───────────────────────
  // Seeded across all three moderation states so the Comments grid and its
  // status filter have something to show.
  const allProducts = await prisma.product.findMany({ take: 3 });
  if (allProducts.length > 0) {
    const commentSeeds = [
      {
        id: 'comment-0001',
        productId: allProducts[0].id,
        customerId: customer2.id,
        body: 'کیفیت ساخت عالی بود، ممنون از ارسال سریع.',
        status: 'APPROVED' as const,
      },
      {
        id: 'comment-0002',
        productId: allProducts[0].id,
        customerId: customer5.id,
        body: 'آیا این مدل در سایز بزرگ‌تر هم موجود می‌شود؟',
        status: 'PENDING' as const,
      },
      {
        id: 'comment-0003',
        productId: allProducts[Math.min(1, allProducts.length - 1)].id,
        customerId: customer2.id,
        body: 'وزن با آنچه نوشته شده کمی تفاوت داشت.',
        status: 'REJECTED' as const,
      },
    ];
    for (const c of commentSeeds) {
      await prisma.comment.upsert({ where: { id: c.id }, update: {}, create: c });
    }
  }

  // ── Variant stock + product codes (columns added in Batch 6) ────────
  // Without stock every variant reads as out-of-stock, which the cart guard
  // rejects, so the order builder would have nothing to add.
  const allVariants = await prisma.productVariant.findMany();
  for (const [i, v] of allVariants.entries()) {
    await prisma.productVariant.update({
      where: { id: v.id },
      data: { qty: 5 + (i % 4), isPreOrder: i % 5 === 0 },
    });
  }
  const codedProducts = await prisma.product.findMany({ orderBy: { title: 'asc' } });
  for (const [i, p] of codedProducts.entries()) {
    await prisma.product.update({
      where: { id: p.id },
      data: { productCode: `P-${String(i + 1).padStart(4, '0')}` },
    });
  }

  console.log('Seed complete:', {
    cities: 4,
    branches: 2,
    adminUsers: 5,
    customers: customers.length,
    products: productDefs.length,
    variants: Object.keys(createdVariantIds).length,
    productImages: imageCount,
  });
}

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