src/app/lib/data.ts

@@ -3,7 +3,6 @@ import {
   Revenue,
   Invoice,
   Customer,
-  LatestInvoice,
 } from './definitions';
 import { formatCurrency } from './utils';
 import postgres from 'postgres';
@@ -31,29 +30,6 @@ export async function fetchRevenue() {
   }
 }
 
-export async function fetchLatestInvoices() {
-  // This is equivalent to in fetch(..., {cache: 'no-store'}).
-  connection()
-
-  try {
-    const data = await sql`
-      SELECT invoices.amount, customers.name, customers.image_url, customers.email, invoices.id
-      FROM invoices
-      JOIN customers ON invoices.customer_id = customers.id
-      ORDER BY invoices.date DESC
-      LIMIT 5` as postgres.RowList<LatestInvoice[]>;
-
-    const latestInvoices = data.map((invoice) => ({
-      ...invoice,
-      amount: formatCurrency(+invoice.amount),
-    }));
-    return latestInvoices;
-  } catch (error) {
-    console.error('Database Error:', error);
-    throw new Error('Failed to fetch the latest invoices.');
-  }
-}
-
 export async function fetchCardData() {
     // This is equivalent to in fetch(..., {cache: 'no-store'}).
   connection()

src/app/lib/definitions.ts

@@ -18,14 +18,6 @@ export type Revenue = {
   revenue: number;
 };
 
-export type LatestInvoice = {
-  id: string;
-  name: string;
-  image_url: string;
-  email: string;
-  amount: string;
-};
-
 export type InvoiceForm = {
   id: string;
   customer_id: string;

src/feature/common/server-di.ts

@@ -1,13 +1,19 @@
+import getCustomerInvoiceDi from "@/feature/customer-invoice/data/module/customer-invoice-di";
+import { customerInvoiceModuleKey } from "@/feature/customer-invoice/invoice-module-key";
 import { customerKey } from "@/feature/customer/customer-key";
 import getCustomerDi from "@/feature/customer/data/module/customer-di";
 import { testModuleKey } from "@/feature/domain/test/test-module-key";
 import getTestModule from "@/feature/infra/test/module/test-module";
+import getInvoiceDi from "@/feature/invoice/data/module/invoice-di";
+import { invoiceModuleKey } from "@/feature/invoice/invoice-module-key";
 import { DependencyContainer } from "tsyringe";
 
 export default function serverDi(module: string): DependencyContainer {
     const getDi = {
         [testModuleKey]: getTestModule,
-        [customerKey]: getCustomerDi
+        [customerKey]: getCustomerDi,
+        [customerInvoiceModuleKey]: getCustomerInvoiceDi,
+        [invoiceModuleKey]: getInvoiceDi,
     }[module]
 
     if (!getDi) throw new Error("Server Di didn't found for module: " + module)

src/feature/customer-invoice/data/module/customer-di.ts

@@ -1,16 +0,0 @@
-import di from "@/bootstrap/di/init-di";
-import CustomerDbRepo from "@/feature/customer/data/repo/customer-db-repo";
-import { customerRepoKey } from "@/feature/customer/domain/i-repo/customer-repo";
-import fetchCustomersUsecase from "@/feature/customer/domain/usecase/fetch-customers-usecase";
-import { DependencyContainer } from "tsyringe";
-
-export default function getCustomerDi(): DependencyContainer {
-    const customerDi = di.createChildContainer()
-
-    customerDi.register(fetchCustomersUsecase.name, {
-        useValue: fetchCustomersUsecase
-    })
-
-    customerDi.register(customerRepoKey, CustomerDbRepo)
-    return customerDi
-}

src/feature/customer-invoice/data/module/customer-invoice-di.ts

@@ -0,0 +1,16 @@
+import di from "@/bootstrap/di/init-di";
+import { customerInvoiceRepoKey } from "@/feature/customer-invoice/domain/i-repo/customer-invoice-repo";
+import fetchCustomerInvoicesUsecase from "@/feature/customer-invoice/domain/usecase/fetch-customer-invoices-usecase";
+import CustomerDbRepo from "@/feature/customer/data/repo/customer-db-repo";
+import { DependencyContainer } from "tsyringe";
+
+export default function getCustomerInvoiceInvoiceDi(): DependencyContainer {
+    const customerInvoiceDi = di.createChildContainer()
+
+    customerInvoiceDi.register(fetchCustomerInvoicesUsecase.name, {
+        useValue: fetchCustomerInvoicesUsecase
+    })
+
+    customerInvoiceDi.register(customerInvoiceRepoKey, CustomerDbRepo)
+    return customerInvoiceDi
+}

src/feature/invoice/data/module/invoice-di.ts

@@ -0,0 +1,16 @@
+import di from "@/bootstrap/di/init-di";
+import invoiceDbRepo from "@/feature/invoice/data/repo/invoice-db-repo";
+import { invoiceRepoKey } from "@/feature/invoice/domain/i-repo/invoice-repo";
+import fetchAllInvoicesAmountUsecase from "@/feature/invoice/domain/usecase/fetch-all-invoices-amount-usecase";
+import { DependencyContainer } from "tsyringe";
+
+export default function getInvoiceDi(): DependencyContainer {
+    const invoiceDi = di.createChildContainer()
+
+    invoiceDi.register(fetchAllInvoicesAmountUsecase.name, {
+        useValue: fetchAllInvoicesAmountUsecase 
+    })
+
+    invoiceDi.register(invoiceRepoKey, invoiceDbRepo)
+    return invoiceDi
+}

src/feature/invoice/data/repo/invoice-db-repo.ts

@@ -0,0 +1,11 @@
+import { sql } from "@/bootstrap/db/db";
+import InvoiceRepo from "@/feature/invoice/domain/i-repo/invoice-repo";
+import postgres from "postgres";
+
+export default class InvoiceDbRepo implements InvoiceRepo {
+    async fetchAllInvoicesAmount(): Promise<number> {
+        const data = await sql`SELECT COUNT(*) FROM invoices` as postgres.RowList<unknown[]>;
+
+        return data.count ?? 0
+    }
+}

src/feature/invoice/domain/i-repo/invoice-repo.ts

@@ -0,0 +1,6 @@
+
+export default interface InvoiceRepo {
+    fetchAllInvoicesAmount(): Promise<number>
+}
+
+export const invoiceRepoKey = "invoiceRepoKey"

src/feature/invoice/domain/usecase/fetch-all-invoices-amount-usecase.ts

@@ -0,0 +1,10 @@
+"use server"
+import serverDi from "@/feature/common/server-di";
+import InvoiceRepo, { invoiceRepoKey } from "@/feature/invoice/domain/i-repo/invoice-repo";
+import { invoiceModuleKey } from "@/feature/invoice/invoice-module-key";
+
+export default function fetchAllInvoicesAmountUsecase(): Promise<number> {
+    const repo = serverDi(invoiceModuleKey).resolve<InvoiceRepo>(invoiceRepoKey)
+
+    return repo.fetchAllInvoicesAmount()
+}

src/feature/invoice/invoice-module-key.ts

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