import { AdminRole, PrismaClient, VerificationStep } from '@prisma/client';

const prisma = new PrismaClient();

// Placeholder — replace with a real bcrypt hash once the auth module lands.
const PLACEHOLDER_PASSWORD_HASH = 'placeholder-hash-not-for-production';

// 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';

async function main() {
  // ── Cities ────────────────────────────────────────────────────────────
  const [tehran, mashhad, isfahan, tabriz] = await Promise.all([
    prisma.city.upsert({ where: { id: 'city-tehran' }, update: {}, create: { id: 'city-tehran', name: 'تهران', province: 'تهران' } }),
    prisma.city.upsert({ where: { id: 'city-mashhad' }, update: {}, create: { id: 'city-mashhad', name: 'مشهد', province: 'خراسان رضوی' } }),
    prisma.city.upsert({ where: { id: 'city-isfahan' }, update: {}, create: { id: 'city-isfahan', name: 'اصفهان', province: 'اصفهان' } }),
    prisma.city.upsert({ where: { id: 'city-tabriz' }, update: {}, create: { id: 'city-tabriz', name: 'تبریز', province: 'آذربایجان شرقی' } }),
  ]);

  // ── 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) ────────────────────
  await prisma.adminUser.upsert({
    where: { mobile: '09120000001' },
    update: {},
    create: {
      mobile: '09120000001',
      fullName: 'مدیر ارشد سیستم',
      passwordHash: PLACEHOLDER_PASSWORD_HASH,
      role: AdminRole.SUPER_ADMIN,
      branchId: branchTehran.id,
    },
  });
  const agentReza = await prisma.adminUser.upsert({
    where: { mobile: '09121234567' },
    update: {},
    create: {
      mobile: '09121234567',
      fullName: 'رضا احمدی',
      passwordHash: PLACEHOLDER_PASSWORD_HASH,
      role: AdminRole.SALES_EXPERT,
      branchId: branchTehran.id,
      wagePercent: 1.5,
    },
  });
  const agentSara = await prisma.adminUser.upsert({
    where: { mobile: '09129876543' },
    update: {},
    create: {
      mobile: '09129876543',
      fullName: 'سارا کریمی',
      passwordHash: PLACEHOLDER_PASSWORD_HASH,
      role: AdminRole.SALES_EXPERT,
      branchId: branchMashhad.id,
      wagePercent: 1.2,
    },
  });
  await prisma.adminUser.upsert({
    where: { mobile: '09123334444' },
    update: {},
    create: {
      mobile: '09123334444',
      fullName: 'هومن یزدانی',
      passwordHash: PLACEHOLDER_PASSWORD_HASH,
      role: AdminRole.WORKSHOP_SUPERVISOR,
    },
  });
  await prisma.adminUser.upsert({
    where: { mobile: '09125556666' },
    update: {},
    create: {
      mobile: '09125556666',
      fullName: 'فرزانه محمودی',
      passwordHash: PLACEHOLDER_PASSWORD_HASH,
      role: AdminRole.ACCOUNTANT,
      branchId: branchTehran.id,
    },
  });

  // ── Customers ────────────────────────────────────────────────────────
  const customerData = [
    {
      id: 'customer-1',
      fullName: 'علی محمدی',
      mobile: '09151112233',
      nationalCode: '0012345678',
      cityId: tehran.id,
      referredByAgentId: agentReza.id,
      goldCreditLimitGrams: '200',
      verificationStep: VerificationStep.VERIFIED,
    },
    {
      id: 'customer-2',
      fullName: 'مریم حسینی',
      mobile: '09151112234',
      nationalCode: '0012345679',
      cityId: tehran.id,
      referredByAgentId: agentReza.id,
      goldCreditLimitGrams: '100',
      verificationStep: VerificationStep.VERIFIED,
    },
    {
      id: 'customer-3',
      fullName: 'جواد نوروزی',
      mobile: '09151112235',
      nationalCode: '0012345680',
      cityId: mashhad.id,
      referredByAgentId: agentSara.id,
      goldCreditLimitGrams: '50',
      verificationStep: VerificationStep.STEP_TWO_SUBMITTED,
    },
    {
      id: 'customer-4',
      fullName: 'نرگس ابراهیمی',
      mobile: '09151112236',
      nationalCode: '0012345681',
      cityId: isfahan.id,
      referredByAgentId: null,
      goldCreditLimitGrams: '30',
      verificationStep: VerificationStep.UNVERIFIED,
    },
    {
      id: 'customer-5',
      fullName: 'کامران صادقی',
      mobile: '09151112237',
      nationalCode: '0012345682',
      cityId: tehran.id,
      referredByAgentId: agentReza.id,
      goldCreditLimitGrams: '500',
      verificationStep: VerificationStep.VERIFIED,
    },
    {
      id: 'customer-6',
      fullName: 'زهرا قاسمی',
      mobile: '09151112238',
      nationalCode: '0012345683',
      cityId: tabriz.id,
      referredByAgentId: agentSara.id,
      goldCreditLimitGrams: '80',
      verificationStep: VerificationStep.STEP_ONE_SUBMITTED,
    },
  ];

  const customers = [];
  for (const c of customerData) {
    customers.push(
      await prisma.customer.upsert({
        where: { id: c.id },
        update: {},
        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,
        },
      }),
    );
  }
  const [customer1, customer2, , , customer5] = customers;

  // ── 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 brandHenza = await prisma.brand.upsert({
    where: { id: 'brand-henza' },
    update: {},
    create: { id: 'brand-henza', title: 'هنزا 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: brandHenza.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: brandHenza.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: brandHenza.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 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,
        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' } });

  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();
  });