fixed all issues regarding team's member list page where users couldn't leave properly or where they couldn't join properly. the team selection page will now directly communicate with the database to ensure everything stays up to date. The team member list page will also auto update every few seconds so the user will not have to manually update their page.

app/api/teams/[teamId]/leave/route.js

@@ -0,0 +1,89 @@
+import { run } from "@/lib/db";
+import { cookies } from "next/headers";
+import { verifyToken, createToken } from "@/app/api/auth/[...nextauth]/route";
+
+export async function POST(request, context) {
+  try {
+    // Verify user authentication
+    const cookieStore = await cookies();
+    const sessionToken = cookieStore.get("next-auth.session-token")?.value;
+
+    if (!sessionToken) {
+      return Response.json({ error: "Unauthorized" }, { status: 401 });
+    }
+
+    const userData = verifyToken(sessionToken);
+    if (!userData) {
+      return Response.json({ error: "Invalid session" }, { status: 401 });
+    }
+
+    // Get teamId from URL params
+    const params = await Promise.resolve(context.params);
+    const teamId = params?.teamId;
+
+    // Validate teamId
+    if (!teamId || isNaN(parseInt(teamId, 10))) {
+      return Response.json({ error: "Invalid team ID" }, { status: 400 });
+    }
+
+    // Check if user is actually in this team
+    if (userData.teamId != teamId) {
+      return Response.json(
+        { error: "You are not part of this team" },
+        { status: 403 }
+      );
+    }
+
+    // Update the user record to remove team association
+    await run("UPDATE users SET team_id = NULL WHERE id = ?", [userData.id]);
+
+    // Try to update the team's last_updated timestamp but don't fail if column doesn't exist
+    try {
+      await run("UPDATE teams SET last_updated = ? WHERE id = ?", [
+        new Date().toISOString(),
+        teamId,
+      ]);
+    } catch (updateError) {
+      // Log but don't fail if we can't update timestamp
+      console.warn(
+        "Failed to update last_updated timestamp:",
+        updateError.message
+      );
+    }
+
+    // Create a new token with updated user data (without teamId)
+    const newUserData = {
+      ...userData,
+      teamId: null, // Remove team association in token
+      iat: Math.floor(Date.now() / 1000),
+      exp: Math.floor(Date.now() / 1000) + 30 * 24 * 60 * 60, // 30 days
+    };
+
+    const newToken = createToken(newUserData);
+
+    // Calculate expiration date for cookie
+    const expiryDate = new Date();
+    expiryDate.setDate(expiryDate.getDate() + 30);
+
+    // Return success with updated session token
+    return new Response(
+      JSON.stringify({
+        success: true,
+        message: "Successfully left the team",
+      }),
+      {
+        status: 200,
+        headers: {
+          "Content-Type": "application/json",
+          "Set-Cookie": `next-auth.session-token=${newToken}; Path=/; HttpOnly; SameSite=Lax; Expires=${expiryDate.toUTCString()}`,
+        },
+      }
+    );
+  } catch (error) {
+    console.error("Leave team error:", error);
+    return Response.json(
+      { error: "Failed to leave team: " + error.message },
+      { status: 500 }
+    );
+  }
+}