@invoicing-sdk/application/dist/index.mjs

Application layer for the invoicing system including use cases, ports, and application services

// src/use-cases/RequestInvoice.ts
import {
  Invoice,
  InvoiceAlreadyExistsError,
  OrderNotFoundError
} from "@invoicing-sdk/domain";

// src/use-cases/mappers/InvoiceDraftMapper.ts
var InvoiceDraftMapper = class {
  /**
   * Converts InvoiceDraft domain entity to InvoiceDraftDTO
   * @param draft - The domain InvoiceDraft entity
   * @returns InvoiceDraftDTO suitable for presentation layer
   */
  static toDTO(draft) {
    return {
      invoiceId: draft.invoiceId,
      invoiceNumber: draft.invoiceNumber,
      orderId: draft.orderId,
      customerSnapshot: {
        firstName: draft.customerSnapshot.firstName,
        lastName: draft.customerSnapshot.lastName,
        street: draft.customerSnapshot.street,
        zip: draft.customerSnapshot.zip,
        city: draft.customerSnapshot.city,
        country: draft.customerSnapshot.country,
        email: draft.customerSnapshot.email,
        phone: draft.customerSnapshot.phone
      },
      itemsSnapshot: draft.itemsSnapshot.map((item) => ({
        name: item.name,
        variant: item.variant,
        productNumber: item.productNumber,
        unitPrice: item.unitPrice.toPlainObject(),
        quantity: item.quantity,
        linePrice: item.linePrice.toPlainObject()
      })),
      financials: {
        subtotal: draft.financials.subtotal.toPlainObject(),
        taxes: draft.financials.taxes.toPlainObject(),
        shippingCost: draft.financials.shippingCost.toPlainObject(),
        discount: draft.financials.discount.toPlainObject(),
        grandTotal: draft.financials.grandTotal.toPlainObject()
      },
      status: "DRAFT",
      createdOn: draft.createdOn.toISOString(),
      createdBy: draft.createdBy
    };
  }
};

// src/use-cases/RequestInvoice.ts
function makeRequestInvoice(deps) {
  return async (command) => {
    const { orderRepository, invoiceRepository, invoiceNumberGenerator } = deps;
    const { orderId } = command;
    const order = await orderRepository.findById(orderId);
    if (!order) {
      throw new OrderNotFoundError(orderId);
    }
    const existingInvoice = await invoiceRepository.findByOrderId(orderId);
    if (existingInvoice) {
      throw new InvoiceAlreadyExistsError(orderId);
    }
    const financials = {
      subtotal: order.subtotal,
      taxes: order.taxes,
      shippingCost: order.shippingCost,
      discount: order.discount,
      grandTotal: order.subtotal.add(order.taxes).add(order.shippingCost).subtract(order.discount)
    };
    const financialsPO = {
      subtotal: financials.subtotal.toPlainObject(),
      taxes: financials.taxes.toPlainObject(),
      shippingCost: financials.shippingCost.toPlainObject(),
      discount: financials.discount.toPlainObject(),
      grandTotal: financials.grandTotal.toPlainObject()
    };
    const draft = await Invoice.createDraft(
      {
        orderId: order.orderId,
        customerSnapshot: order.customer,
        itemsSnapshot: order.items,
        financials,
        createdBy: command.requestedBy
      },
      { invoiceNumberGenerator }
    );
    await invoiceRepository.save(draft);
    const draftDTO = InvoiceDraftMapper.toDTO(draft);
    const result = {
      orderId: order.orderId,
      suggestedInvoiceNumber: draftDTO.invoiceNumber,
      customerInfo: draftDTO.customerSnapshot,
      items: draftDTO.itemsSnapshot,
      financials: draftDTO.financials,
      draft: draftDTO
    };
    if (deps.eventPublisher) {
      draft.publishAllUncommitted(deps.eventPublisher);
    }
    return result;
  };
}
function createRequestInvoiceUseCase(deps) {
  return makeRequestInvoice(deps);
}

// src/use-cases/IssueInvoice.ts
import {
  Invoice as Invoice2,
  InvoiceDraftNotFoundError,
  InvoiceIntegrityCheckError,
  InvoiceStateViolationError,
  InvoiceStatus as InvoiceStatus2,
  OrderNotFoundError as OrderNotFoundError2,
  ShippingCost
} from "@invoicing-sdk/domain";
function makeIssueInvoice(deps) {
  return async (command) => {
    const {
      orderRepository,
      invoiceRepository,
      invoiceNumberValidator,
      shippingRateProvider,
      shippingCostPolicy,
      pdfRenderer,
      legalInfo
    } = deps;
    const { invoiceNumber, orderId, issuedBy } = command;
    const order = await orderRepository.findById(orderId);
    if (!order) {
      throw new OrderNotFoundError2(orderId);
    }
    const existingInvoice = await invoiceRepository.findDraft({
      by: "orderId",
      orderId
    });
    if (!existingInvoice) {
      throw new InvoiceDraftNotFoundError(orderId);
    }
    if (!existingInvoice.requireStatus(InvoiceStatus2.DRAFT)) {
      throw new InvoiceStateViolationError(
        invoiceNumber,
        InvoiceStatus2.DRAFT,
        existingInvoice.getStatus()
      );
    }
    if (existingInvoice.invoiceNumber !== invoiceNumber) {
      throw new InvoiceIntegrityCheckError(
        invoiceNumber,
        "INVOICE_NUMBER_MISMATCH",
        `Invoice draft has ${existingInvoice.invoiceNumber} but received ${invoiceNumber}`
      );
    }
    const baseTotal = order.subtotal.add(order.taxes).subtract(order.discount);
    const shippingCost = ShippingCost.determine(
      baseTotal,
      shippingRateProvider,
      shippingCostPolicy
    );
    const grandTotal = baseTotal.add(shippingCost);
    const financials = {
      subtotal: order.subtotal,
      taxes: order.taxes,
      shippingCost,
      discount: order.discount,
      grandTotal
    };
    const invoiceDataForPdf = {
      invoiceId: "",
      // Will be set after invoice creation
      invoiceNumber,
      orderId,
      customer: order.customer,
      items: order.items,
      financials,
      createdOn: /* @__PURE__ */ new Date(),
      createdBy: issuedBy,
      legalInfo
    };
    const pdfBytes = await pdfRenderer.render(invoiceDataForPdf);
    const invoice = await Invoice2.issue(
      {
        orderId,
        invoiceNumber,
        customerSnapshot: existingInvoice.customerSnapshot,
        itemsSnapshot: existingInvoice.itemsSnapshot,
        financials,
        createdBy: issuedBy,
        // explicit issuer attribution
        status: InvoiceStatus2.DRAFT
      },
      pdfBytes,
      { invoiceNumberValidator }
    );
    await invoiceRepository.save(invoice);
    if (deps.eventPublisher) {
      invoice.publishAllUncommitted(deps.eventPublisher);
    }
    const result = {
      invoiceId: invoice.invoiceId,
      invoiceNumber: invoice.invoiceNumber,
      orderId: invoice.orderId,
      grandTotal: invoice.financials.grandTotal.toPlainObject(),
      issuedOn: invoice.createdOn,
      issuedBy: invoice.createdBy
    };
    return result;
  };
}
function createIssueInvoiceUseCase(deps) {
  return makeIssueInvoice(deps);
}

// src/use-cases/CreateInvoice.ts
import {
  Invoice as Invoice3,
  InvoiceDraftNotFoundError as InvoiceDraftNotFoundError2,
  InvoiceStateViolationError as InvoiceStateViolationError2,
  InvoiceStatus as InvoiceStatus3,
  OrderNotFoundError as OrderNotFoundError3,
  ShippingCost as ShippingCost2
} from "@invoicing-sdk/domain";
function makeCreateInvoice(deps) {
  return async (command) => {
    const {
      orderRepository,
      invoiceRepository,
      invoiceNumberValidator,
      shippingRateProvider,
      shippingCostPolicy,
      pdfRenderer,
      legalInfo
    } = deps;
    const { orderId, invoiceNumber, createdBy } = command;
    const order = await orderRepository.findById(orderId);
    if (!order) {
      throw new OrderNotFoundError3(orderId);
    }
    const existingInvoice = await invoiceRepository.findDraft({
      by: "invoiceNumber",
      invoiceNumber
    });
    if (!existingInvoice) {
      throw new InvoiceDraftNotFoundError2(orderId);
    }
    if (!existingInvoice.requireStatus(InvoiceStatus3.DRAFT)) {
      throw new InvoiceStateViolationError2(
        orderId,
        InvoiceStatus3.DRAFT,
        existingInvoice.getStatus()
      );
    }
    const grandTotal = order.subtotal.add(order.taxes).add(order.shippingCost).subtract(order.discount);
    const shippingCost = ShippingCost2.determine(
      grandTotal,
      shippingRateProvider,
      shippingCostPolicy
    );
    const financials = {
      subtotal: order.subtotal,
      taxes: order.taxes,
      shippingCost,
      discount: order.discount,
      grandTotal
    };
    const invoiceDataForPdf = {
      invoiceId: "",
      // Will be set after invoice creation
      invoiceNumber,
      orderId,
      customer: order.customer,
      items: order.items,
      financials,
      createdOn: /* @__PURE__ */ new Date(),
      createdBy,
      legalInfo
    };
    const pdfBytes = await pdfRenderer.render(invoiceDataForPdf);
    const invoice = await Invoice3.issue(
      {
        orderId,
        invoiceNumber,
        customerSnapshot: existingInvoice.customerSnapshot,
        itemsSnapshot: existingInvoice.itemsSnapshot,
        financials,
        createdBy,
        status: InvoiceStatus3.DRAFT
        // This is always the case after the check above
      },
      pdfBytes,
      { invoiceNumberValidator }
    );
    await invoiceRepository.save(invoice);
    if (deps.eventPublisher) {
      invoice.publishAllUncommitted(deps.eventPublisher);
    }
    const result = {
      invoiceId: invoice.invoiceId,
      invoiceNumber: invoice.invoiceNumber,
      orderId: invoice.orderId,
      grandTotal: invoice.financials.grandTotal.toPlainObject(),
      createdOn: invoice.createdOn,
      createdBy: invoice.createdBy
    };
    return result;
  };
}
function createCreateInvoiceUseCase(deps) {
  return makeCreateInvoice(deps);
}

// src/use-cases/ListInvoices.ts
function makeListInvoices(deps) {
  return async (query) => {
    const { invoiceRepository } = deps;
    if (query.page < 1) {
      throw new Error("Page number must be greater than 0");
    }
    if (query.limit < 1 || query.limit > 100) {
      throw new Error("Limit must be between 1 and 100");
    }
    if (query.dateFrom && query.dateTo && query.dateFrom > query.dateTo) {
      throw new Error("dateFrom must be before or equal to dateTo");
    }
    if (query.minTotal !== void 0 && query.maxTotal !== void 0 && query.minTotal > query.maxTotal) {
      throw new Error("minTotal must be less than or equal to maxTotal");
    }
    const paginatedResult = await invoiceRepository.list(query);
    const result = {
      items: paginatedResult.items.map((invoice) => ({
        invoiceId: invoice.invoiceId,
        invoiceNumber: invoice.invoiceNumber,
        orderId: invoice.orderId,
        customerName: `${invoice.customerSnapshot.firstName} ${invoice.customerSnapshot.lastName}`,
        grandTotal: invoice.financials.grandTotal.toPlainObject(),
        createdOn: invoice.createdOn,
        createdBy: invoice.createdBy,
        itemCount: invoice.getTotalItemCount()
      })),
      totalCount: paginatedResult.totalCount,
      page: paginatedResult.page,
      limit: paginatedResult.limit,
      hasNextPage: paginatedResult.hasNextPage,
      hasPreviousPage: paginatedResult.hasPreviousPage
    };
    return result;
  };
}
function createListInvoicesUseCase(deps) {
  return makeListInvoices(deps);
}

// src/use-cases/GetInvoice.ts
function makeGetInvoice(deps) {
  return async (query) => {
    const { invoiceRepository } = deps;
    const { invoiceId, invoiceNumber, orderId, includePdf = false } = query;
    if (!invoiceId && !invoiceNumber && !orderId) {
      throw new Error("At least one of invoiceId, invoiceNumber, or orderId must be provided");
    }
    let invoice = null;
    if (invoiceId) {
      invoice = await invoiceRepository.findById(invoiceId);
    } else if (invoiceNumber) {
      invoice = await invoiceRepository.findByInvoiceNumber(invoiceNumber);
    } else if (orderId) {
      invoice = await invoiceRepository.findByOrderId(orderId);
    }
    if (!invoice) {
      return null;
    }
    const result = {
      invoiceId: invoice.invoiceId,
      invoiceNumber: invoice.invoiceNumber,
      orderId: invoice.orderId,
      customerSnapshot: {
        firstName: invoice.customerSnapshot.firstName,
        lastName: invoice.customerSnapshot.lastName,
        street: invoice.customerSnapshot.street,
        zip: invoice.customerSnapshot.zip,
        city: invoice.customerSnapshot.city,
        country: invoice.customerSnapshot.country,
        email: invoice.customerSnapshot.email,
        phone: invoice.customerSnapshot.phone
      },
      itemsSnapshot: invoice.itemsSnapshot.map((item) => ({
        name: item.name,
        variant: item.variant,
        productNumber: item.productNumber,
        unitPrice: item.unitPrice.toPlainObject(),
        quantity: item.quantity,
        linePrice: item.linePrice.toPlainObject()
      })),
      financials: {
        subtotal: invoice.financials.subtotal.toPlainObject(),
        taxes: invoice.financials.taxes.toPlainObject(),
        shippingCost: invoice.financials.shippingCost.toPlainObject(),
        discount: invoice.financials.discount.toPlainObject(),
        grandTotal: invoice.financials.grandTotal.toPlainObject()
      },
      createdOn: invoice.createdOn,
      createdBy: invoice.createdBy,
      // Include PDF bytes only if requested
      pdfBytes: includePdf ? invoice.pdfBytes : void 0
    };
    return result;
  };
}
function createGetInvoiceUseCase(deps) {
  return makeGetInvoice(deps);
}

// src/events/event-bus.ts
var EventBusError = class extends Error {
  constructor(message, cause) {
    super(message);
    this.cause = cause;
    this.name = "EventBusError";
  }
};
var EventPublishError = class extends EventBusError {
  constructor(eventType, cause) {
    super(`Failed to publish event: ${eventType}`, cause);
    this.name = "EventPublishError";
  }
};
var EventSubscriptionError = class extends EventBusError {
  constructor(eventType, cause) {
    super(`Failed to subscribe to event: ${eventType}`, cause);
    this.name = "EventSubscriptionError";
  }
};
export {
  EventBusError,
  EventPublishError,
  EventSubscriptionError,
  createCreateInvoiceUseCase,
  createGetInvoiceUseCase,
  createIssueInvoiceUseCase,
  createListInvoicesUseCase,
  createRequestInvoiceUseCase,
  makeCreateInvoice,
  makeGetInvoice,
  makeIssueInvoice,
  makeListInvoices,
  makeRequestInvoice
};
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