Remove invite code requirement for signup

src/app/signup/actions.ts

@@ -3,9 +3,8 @@
 import { revalidatePath } from 'next/cache'
 import { redirect } from 'next/navigation'
 import { AuthError } from '@supabase/supabase-js'
-import { get } from '@vercel/edge-config'
 
-import { createClient, createServiceClient } from '@/utils/supabase/server'
+import { createClient } from '@/utils/supabase/server'
 import { validateEmail, validatePassword } from '@/utils/auth'
 import { sendDiscordMessageEmbed } from '@/utils/discord'
 
@@ -34,13 +33,11 @@ export interface AuthActionState {
 
 export async function signup(state: AuthActionState, payload: FormData) {
   const supabase = await createClient()
-  const service = await createServiceClient()
 
   const data = {
     email: payload.get('email') as string,
     password: payload.get('password') as string,
   }
-  const inviteCode = (payload.get('inviteCode') as string | null)?.trim() || ''
 
   const { error: emailError } = validateEmail(data.email);
   if (emailError) {
@@ -52,33 +49,6 @@ export async function signup(state: AuthActionState, payload: FormData) {
     return { error: passwordError };
   }
 
-  if (!inviteCode) {
-    return { error: 'An invite code is required to sign up.' }
-  }
-
-  // Allow static invite codes via Edge Config to bypass DB checks
-  let isStaticInvite = false
-  try {
-    const staticCodes = (await get<string[] | null>('staticInviteCodes')) || []
-    if (Array.isArray(staticCodes)) {
-      isStaticInvite = staticCodes.includes(inviteCode)
-    }
-  } catch {}
-
-  if (!isStaticInvite) {
-    // Pre-check: ensure invite exists and is unused before attempting signup
-    const { data: availableInvite, error: inviteCheckError } = await service
-      .from('invite_codes')
-      .select('code')
-      .eq('code', inviteCode)
-      .is('used_by', null)
-      .maybeSingle()
-
-    if (inviteCheckError || !availableInvite) {
-      return { error: 'Invalid or already used invite code.' }
-    }
-  }
-
   const { data: signUpResult, error } = await supabase.auth.signUp(data)
 
   if (error) {
@@ -86,52 +56,17 @@ export async function signup(state: AuthActionState, payload: FormData) {
   }
 
   const userId = signUpResult.user?.id || null
-  if (isStaticInvite) {
-    console.log('[signup] Static invite code used:', { inviteCode, userId })
-    if (process.env.DISCORD_WEBHOOK_ADMIN_URL) {
-      await sendDiscordMessageEmbed(process.env.DISCORD_WEBHOOK_ADMIN_URL, [
-        {
-          title: 'New User Signup',
-          description: `A new user (\`${userId}\`) has signed up using the static invite code: \`${inviteCode}\``,
-          color: 0x40f56a,
-          footer: {
-            text: 'A notification will be sent when this user has created their profile'
-          }
-        },
-      ]);
-    }
-  } else {
-    // Finalize: set used_by to the new user id iff still unused (atomic)
-    const { data: finalized, error: finalizeError } = await service
-      .from('invite_codes')
-      .update({ used_by: userId ?? null })
-      .eq('code', inviteCode)
-      .is('used_by', null)
-      .select('code')
-      .maybeSingle()
-
-    if (finalizeError || !finalized) {
-      // The code claim could not be finalized (race). Roll back user creation.
-      if (userId) {
-        try {
-          await service.auth.admin.deleteUser(userId)
-        } catch {}
-      }
-      return { error: 'Invite code is no longer available. Please try again.' }
-    } else {
-      if (process.env.DISCORD_WEBHOOK_ADMIN_URL) {
-        await sendDiscordMessageEmbed(process.env.DISCORD_WEBHOOK_ADMIN_URL, [
-          {
-            title: 'New User Signup',
-            description: `A new user (\`${userId}\`) has signed up using the invite code: \`${inviteCode}\``,
-            color: 0x40f56a,
-            footer: {
-              text: 'A notification will be sent when this user has created their profile'
-            }
-          },
-        ]);
-      }
-    }
+  if (process.env.DISCORD_WEBHOOK_ADMIN_URL) {
+    await sendDiscordMessageEmbed(process.env.DISCORD_WEBHOOK_ADMIN_URL, [
+      {
+        title: 'New User Signup',
+        description: `A new user (\`${userId}\`) has signed up.`,
+        color: 0x40f56a,
+        footer: {
+          text: 'A notification will be sent when this user has created their profile'
+        }
+      },
+    ]);
   }
 
   revalidatePath('/', 'layout');

src/components/Auth/SignupForm.tsx

@@ -14,14 +14,13 @@ export default function SignupForm() {
   const [email, setEmail] = React.useState("");
   const [password, setPassword] = React.useState("");
   const [confirm, setConfirm] = React.useState("");
-  const [invite, setInvite] = React.useState<string>("");
   const [showPassword, setShowPassword] = React.useState(false);
   const [emailError, setEmailError] = React.useState<string | null>(null);
   const [passwordError, setPasswordError] = React.useState<string | null>(null);
 
   const [state, formAction, isPending] = useActionState<AuthActionState, FormData>(signup, { error: null });
   const passwordsMatch = password === confirm;
-  const isValid = !emailError && !passwordError && passwordsMatch && Boolean(invite);
+  const isValid = !emailError && !passwordError && passwordsMatch;
 
   useEffect(() => {
     const { error } = validateEmail(email);
@@ -35,13 +34,6 @@ export default function SignupForm() {
 
   const redirectTo = searchParams.get("redirectTo");
 
-  useEffect(() => {
-    const inviteFromParams = searchParams.get("invite") || "";
-    if (inviteFromParams) {
-      setInvite(inviteFromParams);
-    }
-  }, []);
-
   // Redirect if user already authenticated (e.g., opened signup while logged in)
   useEffect(() => {
     if (!user) return;
@@ -60,27 +52,6 @@ export default function SignupForm() {
           {state?.error}
         </div>
       )}
-      <div className="grid gap-2">
-        <label htmlFor="inviteCode" className="text-sm text-foreground/80">Invite code</label>
-        <input
-          id="inviteCode"
-          name="inviteCode"
-          type="text"
-          value={invite}
-          onChange={(e) => setInvite(e.target.value)}
-          placeholder="Enter your invite code"
-          className={`h-11 rounded-md bg-[var(--surface-2)] px-3 text-sm ring-1 ring-inset ring-[var(--border)] focus:outline-none focus:ring-2 focus:ring-[var(--ring)] ${
-            invite ? "bg-[var(--surface-2)] ring-[var(--border)]" : "bg-[var(--surface-2)] ring-[var(--border)]"
-          }`}
-          required
-          inputMode="text"
-          autoComplete="off"
-          spellCheck={false}
-        />
-        {!invite && (
-          <span className="text-xs text-foreground/60">An invite code is required to create an account.</span>
-        )}
-      </div>
       <div className="grid gap-2">
         <label htmlFor="email" className="text-sm text-foreground/80">Email</label>
         <input