fix auth registration and access management ui

convex/users.ts

@@ -0,0 +1,77 @@
+import { query } from "./_generated/server";
+import { mutation } from "./_generated/server";
+import { v } from "convex/values";
+import { getAuthUserId } from "@convex-dev/auth/server";
+
+function normalizeAccount(value: string) {
+  return value.trim().toLowerCase();
+}
+
+export const resolveLoginAccount = query({
+  args: {
+    account: v.string(),
+  },
+  handler: async (ctx, args) => {
+    const account = normalizeAccount(args.account);
+    if (!account) {
+      return null;
+    }
+
+    const users = await ctx.db.query("users").collect();
+    const user = users.find((row: any) => {
+      const email = normalizeAccount(String(row.email ?? ""));
+      const name = normalizeAccount(String(row.name ?? ""));
+      return email === account || name === account;
+    });
+
+    if (!user) {
+      return null;
+    }
+
+    return {
+      userId: user._id,
+      email: String((user as any).email ?? ""),
+      name: String((user as any).name ?? ""),
+    };
+  },
+});
+
+function normalizeUsername(raw: string): string {
+  const username = String(raw ?? "").trim();
+  if (!username) throw new Error("用户名不能为空");
+  if (username.length < 2 || username.length > 32) throw new Error("用户名长度需为 2-32 个字符");
+  if (/\s/.test(username)) throw new Error("用户名不能包含空格");
+  return username;
+}
+
+export const currentUser = query({
+  args: {},
+  handler: async (ctx) => {
+    const userId = await getAuthUserId(ctx);
+    if (userId === null) {
+      return null;
+    }
+    return await ctx.db.get(userId);
+  },
+});
+
+export const setMyUsername = mutation({
+  args: { username: v.string() },
+  handler: async (ctx, args) => {
+    const userId = await getAuthUserId(ctx);
+    if (userId === null) throw new Error("未登录");
+
+    const username = normalizeUsername(args.username);
+    const existing = await ctx.db
+      .query("users")
+      .filter((q) => q.eq(q.field("name"), username))
+      .first();
+
+    if (existing && String(existing._id) !== String(userId)) {
+      throw new Error("用户名已被占用");
+    }
+
+    await ctx.db.patch(userId, { name: username });
+    return { ok: true, username };
+  },
+});