Add create random invoice module

components.json

@@ -15,6 +15,6 @@
     "utils": "@/bootstrap/helpers/lib/ui-utils",
     "ui": "@/app/components",
     "lib": "@/bootstrap/helpers/lib",
-    "hooks": "@/bootstrap/helpers/vm/hooks"
+    "hooks": "@/bootstrap/helpers/hooks"
   }
 }

src/app/dashboard/components/server/latest-invoices/latest-invoices.tsx

@@ -48,9 +48,9 @@ export default async function LatestInvoices() {
       <h2 className="mb-4 text-xl md:text-2xl">
         Latest Invoices
       </h2>
-      <div className="flex grow flex-col justify-between rounded-xl bg-gray-50 p-4">
+      <div className="flex grow flex-col max-h-[66.5vh] justify-between rounded-xl bg-gray-50 p-4">
 
-        <div className="bg-white px-6">
+        <div className="bg-white px-6 h-full overflow-y-auto">
           {invoices}
         </div>
         <div className="flex items-end mt-auto pb-2 pt-6">

src/app/dashboard/module/dashboard-app-module.ts

@@ -1,9 +1,13 @@
 import CreateRandomInvoiceButtonVM from "@/app/dashboard/vm/create-random-invoice-button-vm";
 import di from "@/bootstrap/di/init-di"
+import createInvoiceUsecase from "@/feature/core/invoice/domain/usecase/create-invoice-usecase";
 
 export default function dashboardAppModule() {
     const dashboardDi = di.createChildContainer()
     
+    dashboardDi.register(createInvoiceUsecase.name, {
+        useValue: createInvoiceUsecase
+    })
     dashboardDi.register(CreateRandomInvoiceButtonVM, CreateRandomInvoiceButtonVM)
     return dashboardDi
 }

src/app/dashboard/vm/create-random-invoice-button-vm.ts

@@ -1,15 +1,36 @@
 import ButtonVm from "@/app/components/button/button-vm";
+import useThrottle from "@/bootstrap/helpers/hooks/use-throttle";
 import BaseVM from "@/bootstrap/helpers/vm/base-vm";
+import { InvoiceParam } from "@/feature/core/invoice/domain/param/invoice-param";
+import createInvoiceUsecase from "@/feature/core/invoice/domain/usecase/create-invoice-usecase";
+import { faker } from "@faker-js/faker";
 
 export default class CreateRandomInvoiceButtonVM extends BaseVM<ButtonVm> {
+    private createInvoice: typeof createInvoiceUsecase
+
+    constructor() {
+        super()
+        this.createInvoice = this.di.resolve(createInvoiceUsecase.name)
+    }
+
     useVM(): ButtonVm {
+        const throttledOnClick = useThrottle(this.onClickHandler.bind(this), 5000)
         return {
             props: {
-                title: "Button Title"
+                title: "Create Random Invoice"
             },
-            onClick: () => {
-                console.log('clicked');
-            }
+            onClick: throttledOnClick 
         }
     }
+
+    onClickHandler() {
+        const fakedParams: InvoiceParam = {
+            amount: faker.number.int({
+                min: 1,
+                max: 10
+            }),
+            status: "paid"
+        }
+        this.createInvoice(fakedParams)
+    }
 } 

src/bootstrap/helpers/hooks/use-throttle.ts

@@ -0,0 +1,18 @@
+"use client"
+
+import { useEffect, useRef } from "react"
+
+/**
+ * 
+ * @param callback 
+ * @param time In miliseconds
+ */
+export default function useThrottle<T extends Function>(callback: T, time: number = 2000) {
+    const lastRun = useRef(Date.now())
+
+    return function() {
+        if (Date.now() - lastRun.current <= time) return;
+        lastRun.current = Date.now()
+        return callback()
+    }
+}

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

@@ -20,7 +20,7 @@ export default class CustomerInvoiceDbRepo implements CustomerInvoiceRepo {
             FROM invoices
             JOIN customers ON invoices.customer_id = customers.id
             ORDER BY invoices.date DESC
-            LIMIT 5` as postgres.RowList<customerInvoiceDbResponse[]>;
+            LIMIT 20 ` as postgres.RowList<customerInvoiceDbResponse[]>;
 
             return this.customerInvoicesDto(data)
         } catch (error) {

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

@@ -1,6 +1,7 @@
 import { sql } from "@/bootstrap/db/db";
 import { formatCurrency } from "@/feature/common/feature-helpers";
 import InvoiceRepo from "@/feature/core/invoice/domain/i-repo/invoice-repo";
+import { InvoiceParam } from "@/feature/core/invoice/domain/param/invoice-param";
 import InvoiceStatusSummary from "@/feature/core/invoice/domain/value-object/invoice-status";
 import postgres from "postgres";
 
@@ -12,6 +13,28 @@ export default class InvoiceDbRepo implements InvoiceRepo {
         return data.count ?? 0
     }
 
+    async createInvoice(params: InvoiceParam): Promise<string> {
+        const firstCustomerIdDb = await sql`SELECT 
+            id FROM customers 
+            ORDER BY id ASC
+            LIMIT 1
+        `
+        const customerId = firstCustomerIdDb.at(0)?.id
+        if (!customerId) throw new Error("There is no customer")
+        
+        const { amount, status } = params;
+        const amountInCents = amount * 100;
+        const date = new Date().toISOString().split('T')[0];
+
+        // Insert data into the database
+        const result = await sql`
+            INSERT INTO invoices (customer_id, amount, status, date)
+            VALUES (${customerId}, ${amountInCents}, ${status}, ${date})
+            RETURNING id
+        `;
+        return result.at(0)?.id ?? ""
+    }
+
     async fetchInvoicesStatusSummary(): Promise<InvoiceStatusSummary> {
         const invoiceStatusPromise = await sql`SELECT
             SUM(CASE WHEN status = 'paid' THEN amount ELSE 0 END) AS "paid",

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

@@ -1,8 +1,10 @@
+import { InvoiceParam } from "@/feature/core/invoice/domain/param/invoice-param"
 import InvoiceStatusSummary from "@/feature/core/invoice/domain/value-object/invoice-status"
 
 export default interface InvoiceRepo {
     fetchAllInvoicesAmount(): Promise<number>
     fetchInvoicesStatusSummary(): Promise<InvoiceStatusSummary>
+    createInvoice(params: InvoiceParam): Promise<string>
 }
 
 export const invoiceRepoKey = "invoiceRepoKey"

src/feature/core/invoice/domain/param/invoice-param.ts

@@ -0,0 +1,10 @@
+import { z } from "zod";
+
+export const invoiceSchema = z.object({
+  amount: z.coerce.number().gt(0, { message: 'Please enter an amount greater than $0.' }),
+  status: z.enum(['pending', 'paid'], {
+    invalid_type_error: 'Please select an invoice status.',
+  }),
+});
+
+export type InvoiceParam = z.infer<typeof invoiceSchema>

src/feature/core/invoice/domain/usecase/create-invoice-usecase.ts

@@ -0,0 +1,22 @@
+"use server"
+import serverDi from "@/feature/common/server-di";
+import InvoiceRepo, { invoiceRepoKey } from "@/feature/core/invoice/domain/i-repo/invoice-repo";
+import { InvoiceParam, invoiceSchema } from "@/feature/core/invoice/domain/param/invoice-param";
+import { invoiceModuleKey } from "@/feature/core/invoice/invoice-module-key";
+import { revalidatePath } from "next/cache";
+import { redirect } from "next/navigation";
+
+export default async function createInvoiceUsecase(params: InvoiceParam): Promise<string | {errorMessage: string}> {
+    const isParamsValid = invoiceSchema.safeParse(params)
+
+    if (!isParamsValid) {
+        return {
+            errorMessage: "Please pass correct params"
+        }
+    }
+    const repo = serverDi(invoiceModuleKey).resolve<InvoiceRepo>(invoiceRepoKey)
+
+    revalidatePath("/dashboard")
+    return repo.createInvoice(params)
+
+}