Add Stripe donation form

Add donation form with Stripe integration and success/failure pages.

* **Donation Form**: Add input fields for donation amount, name, and email address in `src/components/forms/donate-form.tsx`. Implement form submission to create a Stripe Checkout session and handle errors.
* **API Route**: Add `src/pages/api/create-checkout-session.ts` to handle Stripe Checkout session creation. Configure Stripe library and define request handler to create a session.
* **Success Page**: Add `src/pages/donate-success.tsx` to display a success message after a successful donation.
* **Failure Page**: Add `src/pages/donate-failure.tsx` to display a failure message after a failed donation.

---

For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/Vets-Who-Code/vets-who-code-app?shareId=XXXX-XXXX-XXXX-XXXX).

src/components/forms/donate-form.tsx

@@ -1,22 +1,70 @@
-import { forwardRef } from "react";
+import { useState } from "react";
+import { useForm, SubmitHandler } from "react-hook-form";
+import axios from "axios";
 import clsx from "clsx";
 
 type TProps = {
     className?: string;
 };
 
-const DonateForm = forwardRef<HTMLDivElement, TProps>(({ className }, ref) => {
+interface IFormValues {
+    amount: number;
+    name: string;
+    email: string;
+}
+
+const DonateForm = ({ className }: TProps) => {
+    const [serverMessage, setServerMessage] = useState<string>("");
+    const { register, handleSubmit, formState: { errors }, reset } = useForm<IFormValues>();
+
+    const onSubmit: SubmitHandler<IFormValues> = async (data) => {
+        try {
+            const response = await axios.post("/api/create-checkout-session", data);
+            if (response.status === 200) {
+                const { sessionId } = response.data;
+                const stripe = await loadStripe(process.env.NEXT_PUBLIC_STRIPE_PUBLIC_KEY!);
+                await stripe?.redirectToCheckout({ sessionId });
+            } else {
+                setServerMessage("There was an error. Please try again later.");
+            }
+        } catch (error) {
+            setServerMessage("There was an error. Please try again later.");
+        }
+    };
+
     return (
-        <div className={clsx(className)} ref={ref}>
-            <iframe
-                title="#VWC Donorbox"
-                src="https://donorbox.org/embed/vetswhocode-donation?show_content=true"
-                name="vwc-donorbox"
-                seamless
-                className="tw-overflow-x-hidden tw-min-h-[900px] md:tw-min-h-[700px]"
-            />
-        </div>
+        <form className={clsx(className)} onSubmit={handleSubmit(onSubmit)}>
+            <div>
+                <label htmlFor="amount">Donation Amount</label>
+                <input
+                    id="amount"
+                    type="number"
+                    {...register("amount", { required: "Donation amount is required" })}
+                />
+                {errors.amount && <span>{errors.amount.message}</span>}
+            </div>
+            <div>
+                <label htmlFor="name">Name</label>
+                <input
+                    id="name"
+                    type="text"
+                    {...register("name", { required: "Name is required" })}
+                />
+                {errors.name && <span>{errors.name.message}</span>}
+            </div>
+            <div>
+                <label htmlFor="email">Email</label>
+                <input
+                    id="email"
+                    type="email"
+                    {...register("email", { required: "Email is required" })}
+                />
+                {errors.email && <span>{errors.email.message}</span>}
+            </div>
+            <button type="submit">Donate</button>
+            {serverMessage && <p>{serverMessage}</p>}
+        </form>
     );
-});
+};
 
 export default DonateForm;

src/pages/api/create-checkout-session.ts

@@ -0,0 +1,44 @@
+import { NextApiRequest, NextApiResponse } from "next";
+import Stripe from "stripe";
+
+const stripe = new Stripe(process.env.STRIPE_SECRET_KEY!, {
+    apiVersion: "2020-08-27",
+});
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+    if (req.method === "POST") {
+        try {
+            const { amount, name, email } = req.body;
+
+            const session = await stripe.checkout.sessions.create({
+                payment_method_types: ["card"],
+                line_items: [
+                    {
+                        price_data: {
+                            currency: "usd",
+                            product_data: {
+                                name: "Donation",
+                            },
+                            unit_amount: amount * 100,
+                        },
+                        quantity: 1,
+                    },
+                ],
+                mode: "payment",
+                success_url: `${req.headers.origin}/donate-success?session_id={CHECKOUT_SESSION_ID}`,
+                cancel_url: `${req.headers.origin}/donate-failure`,
+                metadata: {
+                    name,
+                    email,
+                },
+            });
+
+            res.status(200).json({ sessionId: session.id });
+        } catch (err) {
+            res.status(500).json({ error: "Internal Server Error" });
+        }
+    } else {
+        res.setHeader("Allow", "POST");
+        res.status(405).end("Method Not Allowed");
+    }
+}

src/pages/donate-failure.tsx

@@ -0,0 +1,18 @@
+import { useRouter } from "next/router";
+import Button from "@ui/button";
+
+const DonateFailurePage = () => {
+    const router = useRouter();
+
+    return (
+        <div className="tw-container tw-py-15 tw-text-center">
+            <h1 className="tw-text-4xl tw-font-bold tw-mb-5">Donation Failed</h1>
+            <p className="tw-text-lg tw-mb-10">
+                Unfortunately, your donation could not be processed. Please try again.
+            </p>
+            <Button onClick={() => router.push("/donate")}>Go to Donation Page</Button>
+        </div>
+    );
+};
+
+export default DonateFailurePage;

src/pages/donate-success.tsx

@@ -0,0 +1,18 @@
+import { useRouter } from "next/router";
+import Button from "@ui/button";
+
+const DonateSuccessPage = () => {
+    const router = useRouter();
+
+    return (
+        <div className="tw-container tw-py-15 tw-text-center">
+            <h1 className="tw-text-4xl tw-font-bold tw-mb-5">Thank You!</h1>
+            <p className="tw-text-lg tw-mb-10">
+                Your donation was successful. We appreciate your support!
+            </p>
+            <Button onClick={() => router.push("/")}>Go to Home</Button>
+        </div>
+    );
+};
+
+export default DonateSuccessPage;