Files
LMS/frontend/src/app/admin/page.tsx
T

475 lines
23 KiB
TypeScript

"use client";
import { useCallback, useEffect, useState } from "react";
import { useRouter } from "next/navigation";
import { api } from "@/lib/api";
import type { User, UserRole, UserStatus } from "@/types";
// ── Helpers ───────────────────────────────────────────────────────────────────
const STATUS_LABELS: Record<UserStatus, string> = {
pending: "Chờ duyệt",
approved: "Đã duyệt",
rejected: "Từ chối",
};
const ROLE_LABELS: Record<UserRole, string> = {
admin: "Admin",
teacher: "Giáo viên",
student: "Học viên",
};
const STATUS_COLORS: Record<UserStatus, string> = {
pending: "bg-yellow-100 text-yellow-800",
approved: "bg-green-100 text-green-800",
rejected: "bg-red-100 text-red-800",
};
const ROLE_COLORS: Record<UserRole, string> = {
admin: "bg-purple-100 text-purple-800",
teacher: "bg-blue-100 text-blue-800",
student: "bg-gray-100 text-gray-700",
};
// ── Page ──────────────────────────────────────────────────────────────────────
export default function AdminPage() {
const router = useRouter();
const [me, setMe] = useState<User | null>(null);
const [users, setUsers] = useState<User[]>([]);
const [loading, setLoading] = useState(true);
const [error, setError] = useState("");
const [busy, setBusy] = useState<number | null>(null); // userId being mutated
// Backup / Restore state
const [backupLoading, setBackupLoading] = useState(false);
const [restoreLoading, setRestoreLoading] = useState(false);
const [backupMsg, setBackupMsg] = useState<{ type: "ok" | "err"; text: string } | null>(null);
const restoreInputRef = useState<HTMLInputElement | null>(null);
const [filterStatus, setFilterStatus] = useState<UserStatus | "all">("all");
const [filterRole, setFilterRole] = useState<UserRole | "all">("all");
const [search, setSearch] = useState("");
// ── Auth guard: admin only ─────────────────────────────────────────────────
useEffect(() => {
async function init() {
try {
const me = await api.me();
if (me.role !== "admin") { router.replace("/dashboard"); return; }
setMe(me);
const list = await api.adminListUsers();
setUsers(list);
} catch {
router.replace("/login");
} finally {
setLoading(false);
}
}
init();
}, [router]);
// ── Mutate helpers ─────────────────────────────────────────────────────────
const updateUser = useCallback((updated: User) => {
setUsers(prev => prev.map(u => u.id === updated.id ? updated : u));
}, []);
const handleStatusChange = useCallback(async (userId: number, status: UserStatus) => {
setBusy(userId);
try {
const updated = await api.adminUpdateStatus(userId, status);
updateUser(updated);
} catch (e: unknown) {
setError(e instanceof Error ? e.message : "Failed to update status.");
} finally {
setBusy(null);
}
}, [updateUser]);
const handleRoleChange = useCallback(async (userId: number, role: UserRole) => {
setBusy(userId);
try {
const updated = await api.adminUpdateRole(userId, role);
updateUser(updated);
} catch (e: unknown) {
setError(e instanceof Error ? e.message : "Failed to update role.");
} finally {
setBusy(null);
}
}, [updateUser]);
const handleDelete = useCallback(async (userId: number, username: string) => {
if (!confirm(`Xoá tài khoản "${username}" và toàn bộ dữ liệu? Không thể hoàn tác.`)) return;
setBusy(userId);
try {
await api.adminDeleteUser(userId);
setUsers(prev => prev.filter(u => u.id !== userId));
} catch (e: unknown) {
setError(e instanceof Error ? e.message : "Failed to delete user.");
} finally {
setBusy(null);
}
}, []);
// ── Filtered list ──────────────────────────────────────────────────────────
const filtered = users.filter(u => {
if (filterStatus !== "all" && u.status !== filterStatus) return false;
if (filterRole !== "all" && u.role !== filterRole) return false;
if (search) {
const q = search.toLowerCase();
if (!u.username.toLowerCase().includes(q) && !u.email.toLowerCase().includes(q)) return false;
}
return true;
});
const pendingCount = users.filter(u => u.status === "pending").length;
// ── Loading ────────────────────────────────────────────────────────────────
if (loading) {
return (
<div className="min-h-screen flex items-center justify-center">
<svg className="animate-spin h-8 w-8 text-blue-500" viewBox="0 0 24 24" fill="none">
<circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
<path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8v4a4 4 0 00-4 4H4z" />
</svg>
</div>
);
}
return (
<div className="min-h-screen bg-gray-50">
{/* ── Navbar ──────────────────────────────────────────────────────────── */}
<header className="bg-white border-b shadow-sm sticky top-0 z-10">
<div className="max-w-7xl mx-auto px-4 py-3 flex items-center justify-between">
<div className="flex items-center gap-3">
<button
onClick={() => router.push("/dashboard")}
className="text-gray-400 hover:text-blue-600 transition"
title="Về Dashboard"
>
<svg className="w-5 h-5" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 19l-7-7 7-7" />
</svg>
</button>
<span className="font-bold text-lg text-blue-600">PDF LMS</span>
<span className="text-xs bg-purple-100 text-purple-700 font-semibold px-2 py-0.5 rounded-full">
Admin
</span>
</div>
<div className="flex items-center gap-3">
<span className="text-sm text-gray-500 hidden sm:block">{me?.username}</span>
<button
onClick={() => router.push("/change-password")}
className="text-sm text-gray-500 hover:text-blue-600 transition"
title="Đổi mật khẩu"
>
<svg className="w-4 h-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 7a2 2 0 012 2m4 0a6 6 0 01-7.743 5.743L11 17H9v2H7v2H4a1 1 0 01-1-1v-2.586a1 1 0 01.293-.707l5.964-5.964A6 6 0 1121 9z" />
</svg>
</button>
<button
onClick={async () => { await api.logout(); router.replace("/login"); }}
className="text-sm text-gray-500 hover:text-red-600 transition"
>
Đăng xuất
</button>
</div>
</div>
</header>
<main className="max-w-7xl mx-auto px-4 py-8">
{/* ── Page title + stats ─────────────────────────────────────────────── */}
<div className="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-4 mb-8">
<div>
<h1 className="text-2xl font-bold text-gray-900">Quản người dùng</h1>
<p className="text-sm text-gray-500 mt-0.5">{users.length} tài khoản tổng cộng</p>
</div>
{pendingCount > 0 && (
<div
className="flex items-center gap-2 bg-yellow-50 border border-yellow-200 text-yellow-800 px-4 py-2 rounded-lg text-sm font-medium cursor-pointer hover:bg-yellow-100 transition"
onClick={() => setFilterStatus("pending")}
>
<svg className="w-4 h-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2}
d="M12 9v2m0 4h.01M10.29 3.86L1.82 18a2 2 0 001.71 3h16.94a2 2 0 001.71-3L13.71 3.86a2 2 0 00-3.42 0z" />
</svg>
{pendingCount} tài khoản chờ duyệt
</div>
)}
</div>
{/* ── Error banner ──────────────────────────────────────────────────── */}
{error && (
<div className="mb-4 bg-red-50 border border-red-200 text-red-700 text-sm px-4 py-3 rounded-lg flex items-center justify-between">
{error}
<button onClick={() => setError("")} className="ml-3 text-red-400 hover:text-red-600"></button>
</div>
)}
{/* ── Filters ───────────────────────────────────────────────────────── */}
<div className="bg-white border border-gray-200 rounded-xl p-4 mb-4 flex flex-col sm:flex-row gap-3">
<input
type="text"
placeholder="Tìm theo username / email…"
value={search}
onChange={e => setSearch(e.target.value)}
className="flex-1 text-sm border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:border-blue-500"
/>
<select
value={filterStatus}
onChange={e => setFilterStatus(e.target.value as UserStatus | "all")}
className="text-sm border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:border-blue-500"
>
<option value="all">Tất cả trạng thái</option>
<option value="pending">Chờ duyệt</option>
<option value="approved">Đã duyệt</option>
<option value="rejected">Từ chối</option>
</select>
<select
value={filterRole}
onChange={e => setFilterRole(e.target.value as UserRole | "all")}
className="text-sm border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:border-blue-500"
>
<option value="all">Tất cả vai trò</option>
<option value="admin">Admin</option>
<option value="teacher">Giáo viên</option>
<option value="student">Học viên</option>
</select>
{(filterStatus !== "all" || filterRole !== "all" || search) && (
<button
onClick={() => { setFilterStatus("all"); setFilterRole("all"); setSearch(""); }}
className="text-sm text-gray-500 hover:text-red-600 transition px-2"
>
Xoá lọc
</button>
)}
</div>
{/* ── Backup & Restore ─────────────────────────────────────────────── */}
<div className="bg-white border border-gray-200 rounded-xl p-5 mb-6 shadow-sm">
<h2 className="text-sm font-bold text-gray-800 mb-1">Sao lưu & Khôi phục</h2>
<p className="text-xs text-gray-400 mb-4">
File ZIP chứa toàn bộ sở dữ liệu (SQL dump) các file PDF đã tải lên.
Dùng để di chuyển sang server khác.
</p>
{backupMsg && (
<div className={`mb-4 text-xs px-3 py-2 rounded-lg flex items-center justify-between ${
backupMsg.type === "ok"
? "bg-green-50 border border-green-200 text-green-700"
: "bg-red-50 border border-red-200 text-red-700"
}`}>
{backupMsg.text}
<button onClick={() => setBackupMsg(null)} className="ml-3 opacity-60 hover:opacity-100"></button>
</div>
)}
<div className="flex flex-col sm:flex-row gap-3">
{/* Download backup */}
<button
disabled={backupLoading}
onClick={async () => {
setBackupLoading(true);
setBackupMsg(null);
try {
const blob = await api.adminDownloadBackup();
const url = URL.createObjectURL(blob);
const a = document.createElement("a");
const ts = new Date().toISOString().replace(/[:.]/g, "-").slice(0, 19);
a.href = url;
a.download = `lms_backup_${ts}.zip`;
a.click();
URL.revokeObjectURL(url);
setBackupMsg({ type: "ok", text: "Tải backup thành công." });
} catch (e: unknown) {
setBackupMsg({ type: "err", text: e instanceof Error ? e.message : "Backup thất bại." });
} finally {
setBackupLoading(false);
}
}}
className="flex items-center justify-center gap-2 text-sm font-medium bg-blue-600 hover:bg-blue-700 disabled:opacity-60 text-white px-4 py-2 rounded-lg transition"
>
{backupLoading ? (
<svg className="animate-spin h-4 w-4" viewBox="0 0 24 24" fill="none">
<circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
<path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8v4a4 4 0 00-4 4H4z" />
</svg>
) : (
<svg className="w-4 h-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2}
d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4" />
</svg>
)}
{backupLoading ? "Đang tạo backup…" : "Tải backup (.zip)"}
</button>
{/* Restore */}
<label
className={`flex items-center justify-center gap-2 text-sm font-medium border-2 border-dashed px-4 py-2 rounded-lg transition cursor-pointer ${
restoreLoading
? "opacity-60 cursor-not-allowed border-gray-300 text-gray-400"
: "border-orange-300 text-orange-600 hover:bg-orange-50"
}`}
>
{restoreLoading ? (
<svg className="animate-spin h-4 w-4" viewBox="0 0 24 24" fill="none">
<circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
<path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8v4a4 4 0 00-4 4H4z" />
</svg>
) : (
<svg className="w-4 h-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2}
d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-8l4-4m0 0l4 4m-4-4v12" />
</svg>
)}
{restoreLoading ? "Đang khôi phục…" : "Khôi phục từ backup (.zip)"}
<input
type="file"
accept=".zip"
className="hidden"
disabled={restoreLoading}
ref={el => { restoreInputRef[1](el); }}
onChange={async (e) => {
const file = e.target.files?.[0];
if (!file) return;
if (!confirm(
`⚠️ Khôi phục từ "${file.name}" sẽ XOÁ TOÀN BỘ dữ liệu hiện tại và thay bằng backup.\n\nBạn có chắc chắn không?`
)) {
e.target.value = "";
return;
}
setRestoreLoading(true);
setBackupMsg(null);
try {
const result = await api.adminRestoreBackup(file);
const ts = result.backup_created_at
? new Date(result.backup_created_at).toLocaleString("vi-VN")
: "";
setBackupMsg({
type: "ok",
text: `Khôi phục thành công${ts ? " (backup ngày " + ts + ")" : ""}. Trang sẽ tải lại sau 3 giây.`,
});
setTimeout(() => window.location.reload(), 3000);
} catch (err: unknown) {
setBackupMsg({ type: "err", text: err instanceof Error ? err.message : "Khôi phục thất bại." });
} finally {
setRestoreLoading(false);
e.target.value = "";
}
}}
/>
</label>
</div>
<p className="text-[10px] text-gray-300 mt-3">
⚠️ Khôi phục sẽ ghi đè toàn bộ dữ liệu hiện tại (người dùng, PDF, annotation). Hãy tải backup trước khi khôi phục.
</p>
</div>
{/* ── Table ────────────────────────────────────────────────────────── */}
<div className="bg-white border border-gray-200 rounded-xl overflow-hidden shadow-sm">
{filtered.length === 0 ? (
<div className="text-center text-gray-400 text-sm py-16">Không tìm thấy tài khoản nào.</div>
) : (
<div className="overflow-x-auto">
<table className="w-full text-sm">
<thead>
<tr className="bg-gray-50 border-b border-gray-200 text-left text-xs font-semibold text-gray-500 uppercase tracking-wider">
<th className="px-4 py-3">ID</th>
<th className="px-4 py-3">Người dùng</th>
<th className="px-4 py-3">Vai trò</th>
<th className="px-4 py-3">Trạng thái</th>
<th className="px-4 py-3">Ngày đăng </th>
<th className="px-4 py-3 text-right">Hành động</th>
</tr>
</thead>
<tbody className="divide-y divide-gray-100">
{filtered.map(u => {
const isSelf = u.id === me?.id;
const isLoading = busy === u.id;
return (
<tr key={u.id} className="hover:bg-gray-50 transition">
{/* ID */}
<td className="px-4 py-3 text-gray-400 tabular-nums">{u.id}</td>
{/* User info */}
<td className="px-4 py-3">
<div className="font-medium text-gray-900">{u.username}</div>
<div className="text-xs text-gray-400">{u.email}</div>
</td>
{/* Role selector */}
<td className="px-4 py-3">
{isSelf ? (
<span className={`text-xs font-semibold px-2 py-0.5 rounded-full ${ROLE_COLORS[u.role]}`}>
{ROLE_LABELS[u.role]}
</span>
) : (
<select
value={u.role}
disabled={isLoading}
onChange={e => handleRoleChange(u.id, e.target.value as UserRole)}
className={`text-xs border rounded-lg px-2 py-1 focus:outline-none focus:border-blue-500 disabled:opacity-50 ${ROLE_COLORS[u.role]} border-transparent`}
>
<option value="student">Học viên</option>
<option value="teacher">Giáo viên</option>
<option value="admin">Admin</option>
</select>
)}
</td>
{/* Status selector */}
<td className="px-4 py-3">
{isSelf ? (
<span className={`text-xs font-semibold px-2 py-0.5 rounded-full ${STATUS_COLORS[u.status]}`}>
{STATUS_LABELS[u.status]}
</span>
) : (
<select
value={u.status}
disabled={isLoading}
onChange={e => handleStatusChange(u.id, e.target.value as UserStatus)}
className={`text-xs border rounded-lg px-2 py-1 focus:outline-none focus:border-blue-500 disabled:opacity-50 ${STATUS_COLORS[u.status]} border-transparent`}
>
<option value="pending">Chờ duyệt</option>
<option value="approved">Duyệt</option>
<option value="rejected">Từ chối</option>
</select>
)}
</td>
{/* Created at */}
<td className="px-4 py-3 text-gray-400 tabular-nums whitespace-nowrap">
{new Date(u.created_at).toLocaleDateString("vi-VN")}
</td>
{/* Actions */}
<td className="px-4 py-3 text-right">
{isLoading ? (
<svg className="animate-spin h-4 w-4 text-blue-500 ml-auto" viewBox="0 0 24 24" fill="none">
<circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
<path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8v4a4 4 0 00-4 4H4z" />
</svg>
) : isSelf ? (
<span className="text-xs text-gray-300"></span>
) : (
<button
onClick={() => handleDelete(u.id, u.username)}
className="text-xs text-red-400 hover:text-red-600 hover:bg-red-50 px-2 py-1 rounded transition"
>
Xoá
</button>
)}
</td>
</tr>
);
})}
</tbody>
</table>
</div>
)}
</div>
</main>
</div>
);
}