All files / src/domains/inventory/traceability/services traceability.service.ts

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import { Injectable } from '@nestjs/common';
import { LedgerService } from '../../stock-ledger/services/ledger.service';
 
@Injectable()
export class TraceabilityService {
  constructor(private readonly ledgerService: LedgerService) {}
 
  async getItemTraceability(tenantId: string, itemCode: string): Promise<any> {
    const entries = await this.ledgerService.getLedgerEntries(tenantId, itemCode);
    return {
      itemCode,
      timeline: entries.map(e => ({
        id: (e as any)._id.toString(),
        date: e.postingDate,
        activity: `${e.transactionType} change of ${e.quantityChange} units`,
        warehouse: e.warehouseId,
        cost: e.totalCost,
        source: { id: e.sourceEntityId, type: e.sourceEntityType },
      })),
    };
  }
 
  async getBatchTraceability(tenantId: string, batchNumber: string): Promise<any> {
    const filter = { tenantId, batchNumber };
    const entries = await (this.ledgerService as any).ledgerModel.find(filter).sort({ postingDate: 1 }).exec();
    return {
      batchNumber,
      timeline: entries.map((e: any) => ({
        id: e._id.toString(),
        date: e.postingDate,
        activity: `${e.transactionType} of ${e.quantityChange}`,
        source: { id: e.sourceEntityId, type: e.sourceEntityType },
      })),
    };
  }
 
  async getSerialTraceability(tenantId: string, serialNumber: string): Promise<any> {
    const filter = { tenantId, serialNumber };
    const entries = await (this.ledgerService as any).ledgerModel.find(filter).sort({ postingDate: 1 }).exec();
    return {
      serialNumber,
      timeline: entries.map((e: any) => ({
        id: e._id.toString(),
        date: e.postingDate,
        activity: `${e.transactionType} of ${e.quantityChange}`,
        source: { id: e.sourceEntityId, type: e.sourceEntityType },
      })),
    };
  }
}