update

ts/formats/cii/cii.encoder.ts

@@ -0,0 +1,68 @@
+import { BaseEncoder } from '../base/base.encoder.js';
+import type { TInvoice, TCreditNote, TDebitNote } from '../../interfaces/common.js';
+import { CII_NAMESPACES, CIIProfile } from './cii.types.js';
+
+/**
+ * Base encoder for CII-based invoice formats
+ */
+export abstract class CIIBaseEncoder extends BaseEncoder {
+  protected profile: CIIProfile = CIIProfile.EN16931;
+
+  /**
+   * Sets the CII profile to use for encoding
+   * @param profile CII profile
+   */
+  public setProfile(profile: CIIProfile): void {
+    this.profile = profile;
+  }
+
+  /**
+   * Encodes a TInvoice object into CII XML
+   * @param invoice TInvoice object to encode
+   * @returns CII XML string
+   */
+  public async encode(invoice: TInvoice): Promise<string> {
+    // Determine if it's a credit note or debit note
+    if (invoice.invoiceType === 'creditnote') {
+      return this.encodeCreditNote(invoice as TCreditNote);
+    } else {
+      return this.encodeDebitNote(invoice as TDebitNote);
+    }
+  }
+
+  /**
+   * Encodes a TCreditNote object into CII XML
+   * @param creditNote TCreditNote object to encode
+   * @returns CII XML string
+   */
+  protected abstract encodeCreditNote(creditNote: TCreditNote): Promise<string>;
+
+  /**
+   * Encodes a TDebitNote object into CII XML
+   * @param debitNote TDebitNote object to encode
+   * @returns CII XML string
+   */
+  protected abstract encodeDebitNote(debitNote: TDebitNote): Promise<string>;
+
+  /**
+   * Creates the XML declaration and root element
+   * @returns XML string with declaration and root element
+   */
+  protected createXmlRoot(): string {
+    return `<?xml version="1.0" encoding="UTF-8"?>
+<rsm:CrossIndustryInvoice xmlns:rsm="${CII_NAMESPACES.RSM}"
+  xmlns:ram="${CII_NAMESPACES.RAM}"
+  xmlns:udt="${CII_NAMESPACES.UDT}">
+</rsm:CrossIndustryInvoice>`;
+  }
+
+  /**
+   * Formats a date as an ISO string (YYYY-MM-DD)
+   * @param timestamp Timestamp to format
+   * @returns Formatted date string
+   */
+  protected formatDate(timestamp: number): string {
+    const date = new Date(timestamp);
+    return date.toISOString().split('T')[0];
+  }
+}