added basic user auth flow

app/api/auth/register/route.ts

@@ -0,0 +1,114 @@
+// app/app/api/auth/register/route.ts
+import { NextRequest, NextResponse } from "next/server";
+
+const BASE = process.env.DIRECTUS_URL!;
+const ADMIN_TOKEN = process.env.DIRECTUS_TOKEN_ADMIN_REGISTER!;
+const MEMBER_ROLE_ID = process.env.DIRECTUS_ROLE_MEMBER_ID || ""; // optional override
+
+if (!BASE) console.warn("[auth/register] Missing DIRECTUS_URL");
+if (!ADMIN_TOKEN) console.warn("[auth/register] Missing DIRECTUS_TOKEN_ADMIN_REGISTER");
+
+type DirectusList<T> = { data: T[] };
+type DirectusItem<T> = { data: T };
+
+async function dFetch<T=any>(path: string, init?: RequestInit): Promise<T> {
+    const res = await fetch(`${BASE}${path}`, {
+        ...init,
+        headers: {
+            "Accept": "application/json",
+            "Content-Type": "application/json",
+            "Authorization": `Bearer ${ADMIN_TOKEN}`,
+            ...(init?.headers || {}),
+        },
+    });
+    const text = await res.text();
+    const json = text ? JSON.parse(text) : null;
+    if (!res.ok) {
+        throw new Error(`Directus ${res.status}: ${text || res.statusText}`);
+    }
+    return (json ?? {}) as T;
+}
+
+async function getMemberRoleId(): Promise<string> {
+    if (MEMBER_ROLE_ID) return MEMBER_ROLE_ID;
+    const q = `/roles?limit=1&filter[name][_in]=Member,member&fields=id,name`;
+    const out = await dFetch<DirectusList<{id:string;name:string}>>(q);
+    const hit = out.data?.[0];
+    if (!hit?.id) throw new Error("Member role not found. Set DIRECTUS_ROLE_MEMBER_ID.");
+    return String(hit.id);
+}
+
+async function usernameExists(username: string): Promise<boolean> {
+    const q = `/users?limit=1&filter[username][_eq]=${encodeURIComponent(username)}&fields=id`;
+    const out = await dFetch<DirectusList<{id:string}>>(q);
+    return !!out.data?.length;
+}
+
+async function emailExists(email: string): Promise<boolean> {
+    const q = `/users?limit=1&filter[email][_eq]=${encodeURIComponent(email)}&fields=id`;
+    const out = await dFetch<DirectusList<{id:string}>>(q);
+    return !!out.data?.length;
+}
+
+function isEmailLike(s: string) {
+    return /^[^@\s]+@[^@\s]+\.[^@\s]+$/.test(s);
+}
+
+export async function POST(req: NextRequest) {
+    try {
+        const body = await req.json().catch(() => ({}));
+        const rawUsername: string = (body?.username ?? "").trim();
+        const rawPassword: string = (body?.password ?? "").trim();
+        const rawEmail: string = String(body?.email ?? "").trim();
+
+        if (!rawUsername || rawUsername.length < 3) {
+            return NextResponse.json({ error: "Username must be at least 3 characters." }, { status: 400 });
+        }
+        if (!rawPassword || rawPassword.length < 8) {
+            return NextResponse.json({ error: "Password must be at least 8 characters." }, { status: 400 });
+        }
+        if (rawEmail && !isEmailLike(rawEmail)) {
+            return NextResponse.json({ error: "Email format is invalid." }, { status: 400 });
+        }
+
+        if (await usernameExists(rawUsername)) {
+            return NextResponse.json({ error: "Username is already taken." }, { status: 409 });
+        }
+
+        // If no email provided, synthesize a placeholder that’s unique.
+        let email = rawEmail;
+        if (!email) {
+            const base = `${rawUsername.toLowerCase()}+noemail@users.makearmy.local`;
+            let candidate = base;
+            let i = 1;
+            while (await emailExists(candidate)) {
+                i += 1;
+                candidate = `${rawUsername.toLowerCase()}+noemail${i}@users.makearmy.local`;
+            }
+            email = candidate;
+        } else {
+            if (await emailExists(email)) {
+                return NextResponse.json({ error: "Email already in use." }, { status: 409 });
+            }
+        }
+
+        const role = await getMemberRoleId();
+
+        // Create the user (status active to allow immediate login)
+        const create = await dFetch<DirectusItem<{id:string}>>(`/users`, {
+            method: "POST",
+            body: JSON.stringify({
+                email,
+                password: rawPassword,
+                role,
+                status: "active",
+                // Add custom field username on directus_users (unique)
+                username: rawUsername,
+            }),
+        });
+
+        return NextResponse.json({ ok: true, id: create.data.id, warning: rawEmail ? null : "No email provided. You won't be able to reset your password until you add one." });
+    } catch (err: any) {
+        return NextResponse.json({ error: err?.message || "Register failed" }, { status: 500 });
+    }
+}