src/feature/common/server-di.ts

@@ -7,6 +7,8 @@ import getTestModule from "@/feature/infra/test/module/test-module";
 import getInvoiceDi from "@/feature/core/invoice/data/module/invoice-di";
 import { invoiceModuleKey } from "@/feature/core/invoice/invoice-module-key";
 import { DependencyContainer } from "tsyringe";
+import { summaryInfoModuleKey } from "@/feature/core/summary-info/domain/summary-info-module-key";
+import getSummaryInfoDi from "@/feature/core/summary-info/data/module/summary-info-di";
 
 export default function serverDi(module: string): DependencyContainer {
     const getDi = {
@@ -14,6 +16,7 @@ export default function serverDi(module: string): DependencyContainer {
         [customerKey]: getCustomerDi,
         [customerInvoiceModuleKey]: getCustomerInvoiceDi,
         [invoiceModuleKey]: getInvoiceDi,
+        [summaryInfoModuleKey]: getSummaryInfoDi,
     }[module]
 
     if (!getDi) throw new Error("Server Di didn't found for module: " + module)

src/feature/core/summary-info/data/module/summary-info-di.ts

@@ -0,0 +1,20 @@
+import di from "@/bootstrap/di/init-di"
+import fetchCustomersAmountUsecase from "@/feature/core/customer/domain/usecase/fetch-customers-amount-usecase"
+import fetchAllInvoicesAmountUsecase from "@/feature/core/invoice/domain/usecase/fetch-all-invoices-amount-usecase"
+import fetchInvoicesStatusSummary from "@/feature/core/invoice/domain/usecase/fetch-invoices-status-summary"
+import fetchSummaryInfoUsecase from "@/feature/core/summary-info/domain/usecase/fetch-summary-info-usecase"
+
+export default function getSummaryInfoDi() {
+    const summaryInfoDi = di.createChildContainer()
+
+    summaryInfoDi.register(fetchAllInvoicesAmountUsecase.name, {
+        useValue: fetchAllInvoicesAmountUsecase
+    })
+    summaryInfoDi.register(fetchCustomersAmountUsecase.name, {
+        useValue: fetchCustomersAmountUsecase
+    })
+    summaryInfoDi.register(fetchInvoicesStatusSummary.name, {
+        useValue: fetchSummaryInfoUsecase
+    })
+    return summaryInfoDi
+}

src/feature/core/summary-info/domain/summary-info-module-key.ts

@@ -0,0 +1 @@
+export const summaryInfoModuleKey = "summaryInfoModuleKey"

src/feature/core/summary-info/domain/usecase/fetch-summary-info-usecase.ts

@@ -0,0 +1,34 @@
+import serverDi from "@/feature/common/server-di";
+import fetchCustomersAmountUsecase from "@/feature/core/customer/domain/usecase/fetch-customers-amount-usecase";
+import fetchAllInvoicesAmountUsecase from "@/feature/core/invoice/domain/usecase/fetch-all-invoices-amount-usecase";
+import fetchInvoicesStatusSummary from "@/feature/core/invoice/domain/usecase/fetch-invoices-status-summary";
+import { summaryInfoModuleKey } from "@/feature/core/summary-info/domain/summary-info-module-key";
+import SummaryInfo from "@/feature/core/summary-info/domain/value-object/summary-info";
+import { connection } from "next/server";
+
+export default async function fetchSummaryInfoUsecase(): Promise<SummaryInfo> {
+    connection()
+
+    try{
+        const summaryInfoDi = serverDi(summaryInfoModuleKey)
+        const invoicesAmountPromise = summaryInfoDi.resolve<typeof fetchAllInvoicesAmountUsecase>(fetchAllInvoicesAmountUsecase.name)()
+        const customersAmountPromise = summaryInfoDi.resolve<typeof fetchCustomersAmountUsecase>(fetchCustomersAmountUsecase.name)()
+        const invoiceSummaryPomise = summaryInfoDi.resolve<typeof fetchInvoicesStatusSummary>(fetchInvoicesStatusSummary.name)()
+
+        const [invoicesAmount, customersAmount, invoicesSummary] = await Promise.all([
+            invoicesAmountPromise,
+            customersAmountPromise,
+            invoiceSummaryPomise,
+        ]);
+
+
+        return new SummaryInfo({
+            invoicesNumber: invoicesAmount,
+            customersNumber: customersAmount,
+            invoicesSummary: invoicesSummary
+        })
+    } catch (error) {
+        console.error('Database Error:', error);
+        throw new Error('Failed to fetch card data.');
+    }
+}

src/feature/core/summary-info/domain/value-object/summary-info.ts

@@ -0,0 +1,17 @@
+import InvoiceStatusSummary from "@/feature/core/invoice/domain/value-object/invoice-status";
+
+export default class SummaryInfo {
+    customersNumber: number;
+    invoicesNumber: number;
+    invoicesSummary: InvoiceStatusSummary 
+
+    constructor({
+        customersNumber,
+        invoicesNumber,
+        invoicesSummary
+    }: SummaryInfo) {
+        this.customersNumber = customersNumber
+        this.invoicesNumber = invoicesNumber
+        this.invoicesSummary = invoicesSummary
+    }
+}