Re_Backend/src/services/dmsIntegration.service.ts

314 lines
10 KiB
TypeScript

import logger from '../utils/logger';
/**
* DMS (Document Management System) Integration Service
* Handles integration with DMS for e-invoice and credit note generation
*
* NOTE: This is a placeholder/stub implementation.
* Replace with actual DMS API integration based on your DMS system.
*/
export class DMSIntegrationService {
private dmsBaseUrl: string;
private dmsApiKey?: string;
private dmsUsername?: string;
private dmsPassword?: string;
constructor() {
this.dmsBaseUrl = process.env.DMS_BASE_URL || '';
this.dmsApiKey = process.env.DMS_API_KEY;
this.dmsUsername = process.env.DMS_USERNAME;
this.dmsPassword = process.env.DMS_PASSWORD;
}
/**
* Check if DMS integration is configured
*/
private isConfigured(): boolean {
return !!this.dmsBaseUrl && (!!this.dmsApiKey || (!!this.dmsUsername && !!this.dmsPassword));
}
/**
* Generate e-invoice in DMS
* @param invoiceData - Invoice data
* @returns E-invoice details including invoice number, DMS number, etc.
*/
async generateEInvoice(invoiceData: {
requestNumber: string;
dealerCode: string;
dealerName: string;
amount: number;
description: string;
ioNumber?: string;
taxDetails?: any;
}): Promise<{
success: boolean;
eInvoiceNumber?: string;
dmsNumber?: string;
invoiceDate?: Date;
invoiceUrl?: string;
error?: string;
}> {
try {
if (!this.isConfigured()) {
logger.warn('[DMS] DMS integration not configured, generating mock e-invoice');
// Return mock data for development/testing
const mockInvoiceNumber = `EINV-${Date.now()}`;
const mockDmsNumber = `DMS-${Date.now()}`;
return {
success: true,
eInvoiceNumber: mockInvoiceNumber,
dmsNumber: mockDmsNumber,
invoiceDate: new Date(),
invoiceUrl: `https://dms.example.com/invoices/${mockInvoiceNumber}`,
error: 'DMS not configured - e-invoice generation simulated'
};
}
// TODO: Implement actual DMS API call
// Example:
// const response = await axios.post(`${this.dmsBaseUrl}/api/invoices/generate`, {
// request_number: invoiceData.requestNumber,
// dealer_code: invoiceData.dealerCode,
// dealer_name: invoiceData.dealerName,
// amount: invoiceData.amount,
// description: invoiceData.description,
// io_number: invoiceData.ioNumber,
// tax_details: invoiceData.taxDetails
// }, {
// headers: {
// 'Authorization': `Bearer ${this.dmsApiKey}`,
// 'Content-Type': 'application/json'
// }
// });
//
// return {
// success: response.data.success,
// eInvoiceNumber: response.data.e_invoice_number,
// dmsNumber: response.data.dms_number,
// invoiceDate: new Date(response.data.invoice_date),
// invoiceUrl: response.data.invoice_url
// };
logger.warn('[DMS] DMS e-invoice generation not implemented, generating mock invoice');
const mockInvoiceNumber = `EINV-${Date.now()}`;
const mockDmsNumber = `DMS-${Date.now()}`;
return {
success: true,
eInvoiceNumber: mockInvoiceNumber,
dmsNumber: mockDmsNumber,
invoiceDate: new Date(),
invoiceUrl: `https://dms.example.com/invoices/${mockInvoiceNumber}`,
error: 'DMS API not implemented - e-invoice generation simulated'
};
} catch (error) {
logger.error('[DMS] Error generating e-invoice:', error);
return {
success: false,
error: error instanceof Error ? error.message : 'Unknown error'
};
}
}
/**
* Generate credit note in DMS
* @param creditNoteData - Credit note data
* @returns Credit note details including credit note number, amount, etc.
*/
async generateCreditNote(creditNoteData: {
requestNumber: string;
eInvoiceNumber: string;
dealerCode: string;
dealerName: string;
amount: number;
reason: string;
description?: string;
}): Promise<{
success: boolean;
creditNoteNumber?: string;
creditNoteDate?: Date;
creditNoteAmount?: number;
creditNoteUrl?: string;
error?: string;
}> {
try {
if (!this.isConfigured()) {
logger.warn('[DMS] DMS integration not configured, generating mock credit note');
// Return mock data for development/testing
const mockCreditNoteNumber = `CN-${Date.now()}`;
return {
success: true,
creditNoteNumber: mockCreditNoteNumber,
creditNoteDate: new Date(),
creditNoteAmount: creditNoteData.amount,
creditNoteUrl: `https://dms.example.com/credit-notes/${mockCreditNoteNumber}`,
error: 'DMS not configured - credit note generation simulated'
};
}
// TODO: Implement actual DMS API call
// Example:
// const response = await axios.post(`${this.dmsBaseUrl}/api/credit-notes/generate`, {
// request_number: creditNoteData.requestNumber,
// e_invoice_number: creditNoteData.eInvoiceNumber,
// dealer_code: creditNoteData.dealerCode,
// dealer_name: creditNoteData.dealerName,
// amount: creditNoteData.amount,
// reason: creditNoteData.reason,
// description: creditNoteData.description
// }, {
// headers: {
// 'Authorization': `Bearer ${this.dmsApiKey}`,
// 'Content-Type': 'application/json'
// }
// });
//
// return {
// success: response.data.success,
// creditNoteNumber: response.data.credit_note_number,
// creditNoteDate: new Date(response.data.credit_note_date),
// creditNoteAmount: response.data.credit_note_amount,
// creditNoteUrl: response.data.credit_note_url
// };
logger.warn('[DMS] DMS credit note generation not implemented, generating mock credit note');
const mockCreditNoteNumber = `CN-${Date.now()}`;
return {
success: true,
creditNoteNumber: mockCreditNoteNumber,
creditNoteDate: new Date(),
creditNoteAmount: creditNoteData.amount,
creditNoteUrl: `https://dms.example.com/credit-notes/${mockCreditNoteNumber}`,
error: 'DMS API not implemented - credit note generation simulated'
};
} catch (error) {
logger.error('[DMS] Error generating credit note:', error);
return {
success: false,
error: error instanceof Error ? error.message : 'Unknown error'
};
}
}
/**
* Get invoice status from DMS
* @param eInvoiceNumber - E-invoice number
* @returns Invoice status and details
*/
async getInvoiceStatus(eInvoiceNumber: string): Promise<{
success: boolean;
status?: string;
invoiceNumber?: string;
dmsNumber?: string;
invoiceDate?: Date;
amount?: number;
error?: string;
}> {
try {
if (!this.isConfigured()) {
logger.warn('[DMS] DMS integration not configured, returning mock invoice status');
return {
success: true,
status: 'GENERATED',
invoiceNumber: eInvoiceNumber,
dmsNumber: `DMS-${Date.now()}`,
invoiceDate: new Date(),
amount: 0,
error: 'DMS not configured - invoice status simulated'
};
}
// TODO: Implement actual DMS API call
// Example:
// const response = await axios.get(`${this.dmsBaseUrl}/api/invoices/${eInvoiceNumber}/status`, {
// headers: {
// 'Authorization': `Bearer ${this.dmsApiKey}`,
// 'Content-Type': 'application/json'
// }
// });
//
// return {
// success: true,
// status: response.data.status,
// invoiceNumber: response.data.invoice_number,
// dmsNumber: response.data.dms_number,
// invoiceDate: new Date(response.data.invoice_date),
// amount: response.data.amount
// };
logger.warn('[DMS] DMS invoice status check not implemented, returning mock status');
return {
success: true,
status: 'GENERATED',
invoiceNumber: eInvoiceNumber,
dmsNumber: `DMS-${Date.now()}`,
invoiceDate: new Date(),
amount: 0,
error: 'DMS API not implemented - invoice status simulated'
};
} catch (error) {
logger.error('[DMS] Error getting invoice status:', error);
return {
success: false,
error: error instanceof Error ? error.message : 'Unknown error'
};
}
}
/**
* Download invoice document from DMS
* @param eInvoiceNumber - E-invoice number
* @returns Invoice document URL or file buffer
*/
async downloadInvoice(eInvoiceNumber: string): Promise<{
success: boolean;
documentUrl?: string;
documentBuffer?: Buffer;
mimeType?: string;
error?: string;
}> {
try {
if (!this.isConfigured()) {
logger.warn('[DMS] DMS integration not configured, returning mock download URL');
return {
success: true,
documentUrl: `https://dms.example.com/invoices/${eInvoiceNumber}/download`,
mimeType: 'application/pdf',
error: 'DMS not configured - download URL simulated'
};
}
// TODO: Implement actual DMS API call
// Example:
// const response = await axios.get(`${this.dmsBaseUrl}/api/invoices/${eInvoiceNumber}/download`, {
// headers: {
// 'Authorization': `Bearer ${this.dmsApiKey}`
// },
// responseType: 'arraybuffer'
// });
//
// return {
// success: true,
// documentBuffer: Buffer.from(response.data),
// mimeType: response.headers['content-type'] || 'application/pdf'
// };
logger.warn('[DMS] DMS invoice download not implemented, returning mock URL');
return {
success: true,
documentUrl: `https://dms.example.com/invoices/${eInvoiceNumber}/download`,
mimeType: 'application/pdf',
error: 'DMS API not implemented - download URL simulated'
};
} catch (error) {
logger.error('[DMS] Error downloading invoice:', error);
return {
success: false,
error: error instanceof Error ? error.message : 'Unknown error'
};
}
}
}
export const dmsIntegrationService = new DMSIntegrationService();