Replace demo pages with live app data

src/lib/friend-actions.ts

@@ -0,0 +1,70 @@
+"use server";
+
+import { revalidatePath } from "next/cache";
+import { prisma } from "./prisma";
+import { requireCurrentUser } from "./session";
+
+export async function sendFriendRequest(formData: FormData) {
+  const user = await requireCurrentUser();
+  const receiverId = String(formData.get("receiverId") || "");
+
+  if (!receiverId || receiverId === user.id) return;
+
+  const existing = await prisma.friendship.findFirst({
+    where: {
+      OR: [
+        { requesterId: user.id, receiverId },
+        { requesterId: receiverId, receiverId: user.id }
+      ]
+    },
+    select: { id: true, status: true }
+  });
+
+  if (!existing) {
+    await prisma.friendship.create({
+      data: {
+        requesterId: user.id,
+        receiverId,
+        status: "PENDING"
+      }
+    });
+  } else if (existing.status === "DECLINED") {
+    await prisma.friendship.update({
+      where: { id: existing.id },
+      data: {
+        requesterId: user.id,
+        receiverId,
+        status: "PENDING"
+      }
+    });
+  }
+
+  revalidatePath("/friends");
+  revalidatePath("/dashboard");
+}
+
+export async function acceptFriendRequest(formData: FormData) {
+  await updateIncomingRequest(formData, "ACCEPTED");
+}
+
+export async function declineFriendRequest(formData: FormData) {
+  await updateIncomingRequest(formData, "DECLINED");
+}
+
+async function updateIncomingRequest(formData: FormData, status: "ACCEPTED" | "DECLINED") {
+  const user = await requireCurrentUser();
+  const friendshipId = String(formData.get("friendshipId") || "");
+  if (!friendshipId) return;
+
+  await prisma.friendship.updateMany({
+    where: {
+      id: friendshipId,
+      receiverId: user.id,
+      status: "PENDING"
+    },
+    data: { status }
+  });
+
+  revalidatePath("/friends");
+  revalidatePath("/dashboard");
+}