feat(dashboard): agregar service, controller y routes

backend/src/app.ts

@@ -15,6 +15,7 @@ import invoicerouter from "./modules/external-invoices/externalInvoice.routes";
 import lpgRouter from "./modules/lpg/lpg.routes";
 import anomalyRouter from "./modules/anomalies/anomaly.routes";
 import pumpReadingRouter from "./modules/pump-reading/pumpReading.routes";
+import dashboardRouter from "./modules/dashboard/dashboard.routes";
 
 
 
@@ -38,7 +39,7 @@ app.use("/api/exterinvoice", invoicerouter);
 app.use("/api/lpg",lpgRouter);
 app.use("/api/anomaly", anomalyRouter);
 app.use("/api/pumpReading", pumpReadingRouter);
-
+app.use("/api/dashboard", dashboardRouter);
 
 app.use(express.urlencoded({
     extended:true

backend/src/modules/dashboard/dashboard.controller.ts

@@ -0,0 +1,25 @@
+import { Request, Response } from "express";
+import { DashboardService } from "./dashboard.service";
+
+const service = new DashboardService();
+
+export class DashboardController {
+   
+    async getDashboard(
+        req:Request,
+        res:Response
+    ){
+        try{
+
+            const dashboard = await service.getDashboard();
+            res.status(200).json(dashboard);
+
+        }catch(error){
+            res.status(500).json({
+                message:"Error al obtener información del Dashboard",
+                error
+            });
+        }
+    }
+   
+}

backend/src/modules/dashboard/dashboard.routes.ts

@@ -0,0 +1,11 @@
+import { Router } from "express";
+import { DashboardController } from "./dashboard.controller";
+import { authMiddleware } from "../auth/auth.middleware";
+
+const dashboardRouter = Router();
+const controller = new DashboardController();
+
+
+dashboardRouter.get("/dashboard", authMiddleware, controller.getDashboard);
+
+export default dashboardRouter;

backend/src/modules/dashboard/dashboard.service.ts

@@ -0,0 +1,97 @@
+import fuelRequestModel from "../fuel-requests/fuelRequest.model";
+import externalInvoiceModel from "../external-invoices/externalInvoice.model";
+import lpgModel from "../lpg/lpg.model";
+import approvalModel from "../approvals/approval.model";
+import anomalyModel from "../anomalies/anomaly.model";
+import pumpReadingModel from "../pump-reading/pumpReading.model";
+
+export class DashboardService {
+
+    async getDashboard(){
+
+        //Total de requisiciones
+        const fuelRequests = await fuelRequestModel.countDocuments();
+
+        //Requisiciones pendientes
+        const pendingRequests = await fuelRequestModel.countDocuments({
+
+            status:"PENDIENTE"
+
+        });
+
+        const approvedRequests = await fuelRequestModel.countDocuments({
+
+            status:"APROBADO"
+            
+        });
+
+        const rejectedRequests = await fuelRequestModel.countDocuments({
+
+            status:"RECHAZADO"
+            
+        });
+
+        //Total de facturas externas
+        const externalInvoices = await externalInvoiceModel.countDocuments();
+
+        //Total de requisiciones LPG
+        const lpgRequests = await lpgModel.countDocuments();
+
+        //Total de galones solicitados
+        const pendingApprovals = await approvalModel.countDocuments({
+            status:"PENDIENTE"
+        });
+
+        //Total de anomalías abiertas
+        const openAnomalies = await anomalyModel.countDocuments({
+            status:"ABIERTA"
+        })
+
+        //Tootal de lecturas de bomba
+        const pumpReadings = await pumpReadingModel.countDocuments();  
+        
+        const gallons = await fuelRequestModel.aggregate([
+                    {
+                        $group:{
+                            _id:null,
+                            totalGallons:{
+                                $sum: "$gallonQuantity"
+                            }
+                        }
+                    }
+                ]);
+        
+        //Total invertido
+        const totalCost = await fuelRequestModel.aggregate([
+                    {
+                        $group:{
+                            _id:null,
+                            totalAmount:{
+                                $sum: "$totalAmount"
+                            }
+                        }
+                        
+                    }
+                ]);
+        
+        return{
+            fuelRequests,
+            externalInvoices,
+            lpgRequests,
+            pendingApprovals,
+            openAnomalies,
+            pumpReadings,
+        
+            totalGallons:
+                gallons.length > 0
+                ? gallons[0].totalGallons
+                :0,
+        
+                    
+            totalCost:
+                totalCost.length > 0
+                ? totalCost[0].totalAmount
+                :0
+        }
+    }
+}