implements classes for business logic

.env.local.example

@@ -0,0 +1 @@
+STRIPE_API_TEST_KEY=

.gitignore

@@ -35,4 +35,4 @@ yarn-error.log*
 *.tsbuildinfo
 next-env.d.ts
 
-tasks.json
+.vscode/tasks.json

package.json

@@ -9,18 +9,20 @@
     "lint": "next lint"
   },
   "dependencies": {
+    "csv-writer": "^1.6.0",
+    "next": "14.2.4",
     "react": "^18",
     "react-dom": "^18",
-    "next": "14.2.4"
+    "stripe": "^15.12.0"
   },
   "devDependencies": {
-    "typescript": "^5",
     "@types/node": "^20",
     "@types/react": "^18",
     "@types/react-dom": "^18",
+    "eslint": "^8",
+    "eslint-config-next": "14.2.4",
     "postcss": "^8",
     "tailwindcss": "^3.4.1",
-    "eslint": "^8",
-    "eslint-config-next": "14.2.4"
+    "typescript": "^5"
   }
 }

src/app/api/stripe/report/route.ts

@@ -0,0 +1,69 @@
+import {createObjectCsvWriter} from "csv-writer";
+import fs from "fs";
+import path from "path";
+import Stripe from "stripe";
+import {NextResponse} from "next/server";
+import {secrets} from "@/config/secrets";
+import {StripeService} from "@/services/api/stripe/StripeService";
+
+async function generateCSVReport() {
+  const stripeService = new StripeService();
+  const transactions = await stripeService.fetchBalanceTransactions();
+  const fees = await stripeService.fetchApplicationFees();
+  const refunds = await stripeService.fetchRefunds();
+
+  const csvWriter = createObjectCsvWriter({
+    path: "stripe_report.csv",
+    header: [
+      {id: "type", title: "TYPE"},
+      {id: "amount", title: "AMOUNT"},
+      {id: "currency", title: "CURRENCY"},
+      {id: "description", title: "DESCRIPTION"},
+      {id: "created", title: "CREATED"},
+    ],
+  });
+
+  const data = [
+    ...transactions.map((t) => ({
+      type: "Transaction",
+      amount: t.amount,
+      currency: t.currency,
+      description: t.description,
+      created: new Date(t.created * 1000).toISOString(),
+    })),
+    ...fees.map((f) => ({
+      type: "Application Fee",
+      amount: f.amount,
+      currency: f.currency,
+      description: f.description,
+      created: new Date(f.created * 1000).toISOString(),
+    })),
+    ...refunds.map((r) => ({
+      type: "Refund",
+      amount: r.amount,
+      currency: r.currency,
+      description: r.description,
+      created: new Date(r.created * 1000).toISOString(),
+    })),
+  ];
+
+  await csvWriter.writeRecords(data);
+  return path.resolve("stripe_report.csv");
+}
+
+export async function GET() {
+  try {
+    const filePath = await generateCSVReport();
+    const fileBuffer = fs.readFileSync(filePath);
+    fs.unlinkSync(filePath); // delete file after sending
+    return new NextResponse(fileBuffer, {
+      headers: {
+        "Content-Type": "text/csv",
+        "Content-Disposition": 'attachment; filename="stripe_report.csv"',
+      },
+    });
+  } catch (error) {
+    console.error("Error generating report:", error);
+    return new NextResponse("Error generating report", {status: 500});
+  }
+}

src/app/page.tsx

@@ -1,12 +1,36 @@
-"use client"
+"use client";
 
 export default function Home() {
+  const handleDownload = () => {
+    fetch("/api/stripe/report")
+      .then((response) => {
+        if (response.ok) {
+          return response.blob();
+        }
+        throw new Error("Network response was not ok.");
+      })
+      .then((blob) => {
+        const url = window.URL.createObjectURL(blob);
+        const a = document.createElement("a");
+        a.style.display = "none";
+        a.href = url;
+        a.download = "stripe_report.csv";
+        document.body.appendChild(a);
+        a.click();
+        window.URL.revokeObjectURL(url);
+      })
+      .catch((error) => console.error("Download error:", error));
+  };
   return (
     <main className="flex min-h-screen flex-col items-center justify-center p-24">
-      <button className="rounded-full bg-blue-600 p-3" onClick={() => console.log("Button clicked")}>
-        Authenticate
+      <h2>Stripe financial report:</h2>
+      <button
+        type="button"
+        onClick={handleDownload}
+        className="text-white bg-blue-700 hover:bg-blue-800 focus:ring-4 focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 me-2 mb-2 dark:bg-blue-600 dark:hover:bg-blue-700 focus:outline-none dark:focus:ring-blue-800">
+        Download Report
       </button>
-      <p></p>
+      <div></div>
     </main>
   );
 }

src/config/secrets.ts

@@ -0,0 +1,10 @@
+class EnvConfig {
+  get stripeKey(): string {
+    if (!process.env.STRIPE_KEY) {
+      throw new Error("STRIPE_KEY environment not set");
+    }
+    return process.env.STRIPE_KEY;
+  }
+}
+
+export const secrets = new EnvConfig();