first commit

lib/zarinpal.ts

@@ -0,0 +1,55 @@
+const ZARINPAL_MERCHANT = process.env.ZARINPAL_MERCHANT_ID ?? "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX";
+const IS_SANDBOX = process.env.NODE_ENV !== "production";
+
+const BASE_URL = IS_SANDBOX
+  ? "https://sandbox.zarinpal.com/pg/v4/payment"
+  : "https://api.zarinpal.com/pg/v4/payment";
+
+const GATEWAY = IS_SANDBOX
+  ? "https://sandbox.zarinpal.com/pg/StartPay"
+  : "https://www.zarinpal.com/pg/StartPay";
+
+export async function requestPayment(amount: number, description: string, callbackUrl: string) {
+  const res = await fetch(`${BASE_URL}/request.json`, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({
+      merchant_id: ZARINPAL_MERCHANT,
+      amount, // تومان
+      description,
+      callback_url: callbackUrl,
+    }),
+  });
+
+  const data = await res.json();
+
+  if (data.data?.code === 100) {
+    return {
+      success: true,
+      authority: data.data.authority as string,
+      paymentUrl: `${GATEWAY}/${data.data.authority}`,
+    };
+  }
+
+  return { success: false, error: data.errors?.message ?? "خطا در اتصال به درگاه" };
+}
+
+export async function verifyPayment(authority: string, amount: number) {
+  const res = await fetch(`${BASE_URL}/verify.json`, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({
+      merchant_id: ZARINPAL_MERCHANT,
+      amount,
+      authority,
+    }),
+  });
+
+  const data = await res.json();
+
+  if (data.data?.code === 100 || data.data?.code === 101) {
+    return { success: true, refId: String(data.data.ref_id) };
+  }
+
+  return { success: false, error: "پرداخت تایید نشد" };
+}