All files / src/domains/procurement/sourcing/services sourcing.service.ts

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import { Injectable, NotFoundException, BadRequestException } from '@nestjs/common';
import { InjectModel } from '@nestjs/mongoose';
import { Model } from 'mongoose';
import { RequestForQuotation, VendorQuotation } from '../schemas/sourcing.schema';
import { EventBusService } from '../../../../platform/events/event-bus.service';
import { AuditLogService } from '../../../../platform/audit/audit-log.service';
 
@Injectable()
export class SourcingService {
  constructor(
    @InjectModel(RequestForQuotation.name)
    private readonly rfqModel: Model<RequestForQuotation>,
    @InjectModel(VendorQuotation.name)
    private readonly quotationModel: Model<VendorQuotation>,
    private readonly eventBus: EventBusService,
    private readonly auditLog: AuditLogService,
  ) {}
 
  async createRfq(tenantId: string, data: any, userId: string): Promise<RequestForQuotation> {
    const count = await this.rfqModel.countDocuments({ tenantId }).exec();
    const rfqNumber = `RFQ-${new Date().getFullYear()}-${(count + 1).toString().padStart(5, '0')}`;
 
    const rfq = await this.rfqModel.create({
      ...data,
      tenantId,
      rfqNumber,
      status: 'published',
    });
 
    await this.eventBus.publish('procurement.rfq.created.v1', {
      rfqId: (rfq as any)._id.toString(),
      tenantId,
      rfqNumber,
    }, tenantId);
 
    await this.auditLog.log({
      tenantId,
      userId,
      action: 'CREATE',
      resource: 'RequestForQuotation',
      resourceId: (rfq as any)._id.toString(),
      newValues: { rfqNumber },
    });
 
    return rfq;
  }
 
  async getRfqs(tenantId: string): Promise<RequestForQuotation[]> {
    return this.rfqModel.find({ tenantId }).exec();
  }
 
  async getRfqById(tenantId: string, id: string): Promise<RequestForQuotation> {
    const rfq = await this.rfqModel.findOne({ _id: id, tenantId }).exec();
    if (!rfq) throw new NotFoundException('RFQ not found');
    return rfq;
  }
 
  async submitQuotation(tenantId: string, data: any, userId: string): Promise<VendorQuotation> {
    const rfq = await this.rfqModel.findOne({ _id: data.rfqId, tenantId }).exec();
    if (!rfq) throw new NotFoundException('RFQ not found');
 
    // Deadline check
    if (new Date() > new Date(rfq.deadlineDate)) {
      throw new BadRequestException('Quotation submission deadline has passed');
    }
 
    const subtotal = data.items.reduce((sum: number, item: any) => sum + (item.quantity * item.unitPrice), 0);
    const tax = subtotal * 0.1; // Sourcing calculation base defaults to basic or resolved
    const totalAmount = subtotal + tax;
 
    const quotation = await this.quotationModel.create({
      ...data,
      tenantId,
      subtotal,
      tax,
      totalAmount,
      status: 'submitted',
    });
 
    await this.eventBus.publish('procurement.quotation.submitted.v1', {
      quotationId: (quotation as any)._id.toString(),
      tenantId,
      rfqId: data.rfqId,
      totalAmount,
    }, tenantId);
 
    await this.auditLog.log({
      tenantId,
      userId,
      action: 'SUBMIT_QUOTATION',
      resource: 'VendorQuotation',
      resourceId: (quotation as any)._id.toString(),
      newValues: { rfqId: data.rfqId, totalAmount },
    });
 
    return quotation;
  }
 
  async getQuotationsForRfq(tenantId: string, rfqId: string, userId: string): Promise<VendorQuotation[]> {
    const rfq = await this.rfqModel.findOne({ _id: rfqId, tenantId }).exec();
    if (!rfq) throw new NotFoundException('RFQ not found');
 
    // Confidentiality Check: Sealed bidding checks
    if (rfq.sealedBidEnabled && new Date() < new Date(rfq.deadlineDate)) {
      throw new BadRequestException('Bids are currently sealed until deadline is reached');
    }
 
    return this.quotationModel.find({ tenantId, rfqId }).exec();
  }
 
  async evaluateQuotation(
    tenantId: string,
    id: string,
    scores: { technicalScore: number; commercialScore: number },
    userId: string
  ): Promise<VendorQuotation> {
    const quotation = await this.quotationModel.findOneAndUpdate(
      { _id: id, tenantId },
      { $set: scores },
      { new: true }
    ).exec();
    if (!quotation) throw new NotFoundException('Quotation not found');
 
    await this.auditLog.log({
      tenantId,
      userId,
      action: 'EVALUATE_QUOTATION',
      resource: 'VendorQuotation',
      resourceId: id,
      newValues: scores,
    });
 
    return quotation;
  }
 
  async awardQuotation(tenantId: string, id: string, userId: string): Promise<VendorQuotation> {
    const quotation = await this.quotationModel.findOneAndUpdate(
      { _id: id, tenantId },
      { status: 'awarded' },
      { new: true }
    ).exec();
    if (!quotation) throw new NotFoundException('Quotation not found');
 
    // Reject other competitor quotations for this RFQ
    await this.quotationModel.updateMany(
      { tenantId, rfqId: quotation.rfqId, _id: { $ne: id } },
      { status: 'rejected' }
    ).exec();
 
    await this.eventBus.publish('procurement.award.approved.v1', {
      quotationId: id,
      tenantId,
      rfqId: quotation.rfqId,
      vendorId: quotation.vendorId,
    }, tenantId);
 
    await this.auditLog.log({
      tenantId,
      userId,
      action: 'AWARD_QUOTATION',
      resource: 'VendorQuotation',
      resourceId: id,
      newValues: { status: 'awarded', rfqId: quotation.rfqId },
    });
 
    return quotation;
  }
}