[CLAUDE] FE-Admin: PermissionsPage 3-panel layout

Redesign theo yêu cầu user: 3 panel vertical đồng thời trên cùng 1
màn hình (không modal/dialog popup).

Layout grid lg:grid-cols-[280px_1fr_300px]:

Panel 1 — Vai trò (trái, 280px):
  Danh sách roles click-to-select với active highlight (brand-50 bg +
  ring-brand-200 + check icon). Đếm số roles ở header.

Panel 2 — Quyền theo menu (giữa, flex):
  Tìm menu inline header + sticky thead. Click vai trò → lọc menu
  instant. Column toggle header (tick toàn cột) + per-cell checkbox.
  Hover brand-tinted. Menu key hiện mono nhỏ dưới label.

Panel 3 — Tổng quan (phải, 300px):
  Vai trò đang chọn + số quyền (progress bar brand) + chi tiết từng
  CRUD (Xem/Tạo/Sửa/Xóa) với badge color-coded (slate/emerald/amber/
  red) + count "X / Y menus" + tip helper cuối.

Bỏ dialog select + 3-col grid filter ở đầu (thay bằng 3 panel), giữ
logic mutation/toggle/column nguyên.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fe-admin/src/pages/system/PermissionsPage.tsx

@@ -1,21 +1,20 @@
 import { useMemo, useState } from 'react'
 import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query'
 import { toast } from 'sonner'
-import { Search, Shield, Check } from 'lucide-react'
+import { Search, Shield, Check, Users, KeyRound, BarChart3 } from 'lucide-react'
 import { PageHeader } from '@/components/PageHeader'
-import { EmptyState } from '@/components/EmptyState'
 import { Input } from '@/components/ui/Input'
-import { Select } from '@/components/ui/Select'
 import { api } from '@/lib/api'
 import { getErrorMessage } from '@/lib/apiError'
+import { cn } from '@/lib/cn'
 import type { MenuItem, Permission, Role } from '@/types/menu'
 
 type CrudKey = 'canRead' | 'canCreate' | 'canUpdate' | 'canDelete'
-const CRUD_COLS: { key: CrudKey; label: string; short: string }[] = [
-  { key: 'canRead', label: 'Xem', short: 'R' },
-  { key: 'canCreate', label: 'Tạo', short: 'C' },
-  { key: 'canUpdate', label: 'Sửa', short: 'U' },
-  { key: 'canDelete', label: 'Xóa', short: 'D' },
+const CRUD_COLS: { key: CrudKey; label: string; short: string; tone: string }[] = [
+  { key: 'canRead',   label: 'Xem', short: 'R', tone: 'bg-slate-100 text-slate-700' },
+  { key: 'canCreate', label: 'Tạo', short: 'C', tone: 'bg-emerald-100 text-emerald-700' },
+  { key: 'canUpdate', label: 'Sửa', short: 'U', tone: 'bg-amber-100 text-amber-700' },
+  { key: 'canDelete', label: 'Xóa', short: 'D', tone: 'bg-red-100 text-red-700' },
 ]
 
 export function PermissionsPage() {
@@ -43,9 +42,7 @@ export function PermissionsPage() {
     mutationFn: async (p: { menuKey: string; canRead: boolean; canCreate: boolean; canUpdate: boolean; canDelete: boolean }) => {
       await api.put('/permissions', { roleId, ...p })
     },
-    onSuccess: () => {
-      qc.invalidateQueries({ queryKey: ['permissions', roleId] })
-    },
+    onSuccess: () => qc.invalidateQueries({ queryKey: ['permissions', roleId] }),
     onError: err => toast.error(getErrorMessage(err)),
   })
 
@@ -63,17 +60,19 @@ export function PermissionsPage() {
   }, [menus.data, search])
 
   const stats = useMemo(() => {
-    const total = (menus.data?.length ?? 0) * 4
+    const totalMenus = menus.data?.length ?? 0
+    const total = totalMenus * 4
+    const breakdown = { canRead: 0, canCreate: 0, canUpdate: 0, canDelete: 0 }
     let granted = 0
     for (const m of menus.data ?? []) {
       const p = permMap.get(m.key)
       if (!p) continue
-      if (p.canRead) granted++
-      if (p.canCreate) granted++
-      if (p.canUpdate) granted++
-      if (p.canDelete) granted++
+      if (p.canRead) { granted++; breakdown.canRead++ }
+      if (p.canCreate) { granted++; breakdown.canCreate++ }
+      if (p.canUpdate) { granted++; breakdown.canUpdate++ }
+      if (p.canDelete) { granted++; breakdown.canDelete++ }
     }
-    return { granted, total }
+    return { granted, total, totalMenus, breakdown }
   }, [menus.data, permMap])
 
   function currentFlags(menuKey: string) {
@@ -88,8 +87,7 @@ export function PermissionsPage() {
 
   function toggle(menuKey: string, field: CrudKey) {
     const flags = currentFlags(menuKey)
-    const next = { ...flags, [field]: !flags[field] }
-    upsert.mutate({ menuKey, ...next })
+    upsert.mutate({ menuKey, ...flags, [field]: !flags[field] })
   }
 
   function columnAllChecked(field: CrudKey) {
@@ -113,124 +111,200 @@ export function PermissionsPage() {
     <div className="p-6">
       <PageHeader
         title="Ma trận phân quyền"
-        description="Tick để gán quyền Xem / Tạo / Sửa / Xóa theo vai trò. Thay đổi lưu tự động."
+        description="3 panel — chọn vai trò (Panel 1), tick quyền CRUD cho từng menu (Panel 2), xem tổng quan (Panel 3). Thay đổi lưu tự động."
       />
 
-      <div className="mb-4 grid grid-cols-1 gap-3 md:grid-cols-3">
-        <div>
-          <label className="mb-1 block text-xs font-medium text-slate-600">Vai trò</label>
-          <Select value={roleId} onChange={e => setRoleId(e.target.value)}>
-            <option value="">-- Chọn vai trò --</option>
+      {/* 3-column layout. Heights match so panels align. */}
+      <div className="grid grid-cols-1 gap-4 lg:grid-cols-[280px_1fr_300px]">
+        {/* ===== Panel 1: Role list ===== */}
+        <section className="flex flex-col rounded-xl border border-slate-200 bg-white shadow-sm">
+          <header className="flex items-center gap-2 border-b border-slate-100 px-4 py-3">
+            <Users className="h-4 w-4 text-brand-600" />
+            <h2 className="text-sm font-semibold text-slate-700">1. Vai trò</h2>
+            <span className="ml-auto text-[11px] text-slate-400">{roles.data?.length ?? 0}</span>
+          </header>
+          <div className="flex-1 overflow-y-auto p-2">
+            {roles.isLoading && <div className="p-4 text-xs text-slate-400">Đang tải…</div>}
             {roles.data?.map(r => (
-              <option key={r.id} value={r.id}>
-                {r.name}
-              </option>
+              <button
+                key={r.id}
+                onClick={() => setRoleId(r.id)}
+                className={cn(
+                  'flex w-full items-center justify-between rounded-md px-3 py-2 text-left text-sm transition',
+                  roleId === r.id
+                    ? 'bg-brand-50 text-brand-700 font-medium ring-1 ring-brand-200'
+                    : 'text-slate-600 hover:bg-slate-50',
+                )}
+              >
+                <span className="truncate">{r.name}</span>
+                {roleId === r.id && <Check className="h-3.5 w-3.5 shrink-0" />}
+              </button>
             ))}
-          </Select>
-        </div>
-        <div>
-          <label className="mb-1 block text-xs font-medium text-slate-600">Tìm menu</label>
-          <div className="relative">
-            <Search className="pointer-events-none absolute left-2 top-1/2 h-4 w-4 -translate-y-1/2 text-slate-400" />
-            <Input
-              placeholder="Tên hoặc key menu…"
-              value={search}
-              onChange={e => setSearch(e.target.value)}
-              className="pl-8"
-              disabled={!roleId}
-            />
           </div>
-        </div>
-        {roleId && (
-          <div className="flex items-end">
-            <div className="rounded-md border border-slate-200 bg-white px-4 py-2 text-xs">
-              <div className="flex items-center gap-1.5 text-slate-500">
-                <Shield className="h-3.5 w-3.5" />
-                {selectedRole?.name}
-              </div>
-              <div className="mt-0.5 font-mono text-slate-900">
-                {stats.granted}
-                <span className="text-slate-400"> / {stats.total} quyền</span>
+        </section>
+
+        {/* ===== Panel 2: Menu × CRUD matrix ===== */}
+        <section className="flex flex-col rounded-xl border border-slate-200 bg-white shadow-sm">
+          <header className="flex items-center gap-2 border-b border-slate-100 px-4 py-3">
+            <KeyRound className="h-4 w-4 text-brand-600" />
+            <h2 className="text-sm font-semibold text-slate-700">2. Quyền theo menu</h2>
+            {selectedRole && (
+              <span className="rounded-full bg-brand-50 px-2 py-0.5 text-[10px] font-medium text-brand-700">
+                {selectedRole.name}
+              </span>
+            )}
+            <div className="ml-auto w-56">
+              <div className="relative">
+                <Search className="pointer-events-none absolute left-2 top-1/2 h-3.5 w-3.5 -translate-y-1/2 text-slate-400" />
+                <Input
+                  placeholder="Tìm menu…"
+                  value={search}
+                  onChange={e => setSearch(e.target.value)}
+                  className="h-8 pl-7 text-xs"
+                  disabled={!roleId}
+                />
               </div>
             </div>
-          </div>
-        )}
-      </div>
+          </header>
 
-      {!roleId ? (
-        <EmptyState
-          icon={Shield}
-          title="Chọn một vai trò để bắt đầu"
-          description="Ma trận phân quyền sẽ hiện theo vai trò đã chọn."
-        />
-      ) : (
-        <div className="overflow-auto rounded-md border border-slate-200 bg-white">
-          <table className="w-full text-sm">
-            <thead className="bg-slate-50 text-slate-700">
-              <tr>
-                <th className="px-3 py-2 text-left font-medium">
-                  Menu
-                  {search && (
-                    <span className="ml-2 text-xs font-normal text-slate-400">
-                      ({filteredMenus.length} kết quả)
-                    </span>
-                  )}
-                </th>
-                {CRUD_COLS.map(c => {
-                  const allChecked = columnAllChecked(c.key)
-                  return (
-                    <th key={c.key} className="w-24 px-3 py-2 text-center font-medium">
-                      <div className="flex flex-col items-center gap-1">
-                        <span>{c.label}</span>
-                        <button
-                          onClick={() => toggleColumn(c.key)}
-                          title={allChecked ? 'Bỏ tick toàn cột' : 'Tick toàn cột'}
-                          disabled={upsert.isPending || filteredMenus.length === 0}
-                          className={`flex h-5 w-5 items-center justify-center rounded border transition ${allChecked ? 'border-brand-600 bg-brand-600 text-white' : 'border-slate-300 bg-white text-slate-400 hover:border-brand-500'}`}
-                        >
-                          {allChecked && <Check className="h-3 w-3" />}
-                        </button>
-                      </div>
+          {!roleId ? (
+            <div className="flex flex-1 items-center justify-center p-8 text-center text-sm text-slate-400">
+              <div>
+                <Shield className="mx-auto mb-2 h-8 w-8 text-slate-300" />
+                <div>Chọn vai trò ở panel 1 để bắt đầu</div>
+              </div>
+            </div>
+          ) : (
+            <div className="flex-1 overflow-auto">
+              <table className="w-full text-sm">
+                <thead className="sticky top-0 bg-slate-50/80 text-slate-600 backdrop-blur">
+                  <tr className="border-b border-slate-200">
+                    <th className="px-4 py-2 text-left text-[11px] font-semibold uppercase tracking-wider">
+                      Menu
+                      {search && (
+                        <span className="ml-2 font-normal normal-case text-slate-400">
+                          ({filteredMenus.length} kết quả)
+                        </span>
+                      )}
                     </th>
-                  )
-                })}
-              </tr>
-            </thead>
-            <tbody>
-              {filteredMenus.length === 0 && (
-                <tr>
-                  <td colSpan={5} className="px-3 py-10 text-center text-xs text-slate-400">
-                    Không có menu khớp với từ khóa.
-                  </td>
-                </tr>
-              )}
-              {filteredMenus.map(m => {
-                const flags = currentFlags(m.key)
-                const depth = m.parentKey ? 1 : 0
-                return (
-                  <tr key={m.key} className="border-t border-slate-100 hover:bg-slate-50/50">
-                    <td className="px-3 py-2" style={{ paddingLeft: `${0.75 + depth * 1.5}rem` }}>
-                      <span className="font-medium text-slate-800">{m.label}</span>
-                      <span className="ml-2 font-mono text-xs text-slate-400">{m.key}</span>
-                    </td>
-                    {CRUD_COLS.map(c => (
-                      <td key={c.key} className="px-3 py-2 text-center">
-                        <input
-                          type="checkbox"
-                          className="h-4 w-4 cursor-pointer accent-brand-600"
-                          checked={flags[c.key]}
-                          disabled={upsert.isPending}
-                          onChange={() => toggle(m.key, c.key)}
-                        />
-                      </td>
-                    ))}
+                    {CRUD_COLS.map(c => {
+                      const allChecked = columnAllChecked(c.key)
+                      return (
+                        <th key={c.key} className="w-20 px-2 py-2 text-center">
+                          <div className="flex flex-col items-center gap-1">
+                            <span className="text-[11px] font-semibold uppercase tracking-wider">{c.label}</span>
+                            <button
+                              onClick={() => toggleColumn(c.key)}
+                              title={allChecked ? 'Bỏ tick toàn cột' : 'Tick toàn cột'}
+                              disabled={upsert.isPending || filteredMenus.length === 0}
+                              className={cn(
+                                'flex h-5 w-5 items-center justify-center rounded border transition',
+                                allChecked
+                                  ? 'border-brand-600 bg-brand-600 text-white'
+                                  : 'border-slate-300 bg-white text-slate-400 hover:border-brand-500',
+                              )}
+                            >
+                              {allChecked && <Check className="h-3 w-3" />}
+                            </button>
+                          </div>
+                        </th>
+                      )
+                    })}
                   </tr>
-                )
-              })}
-            </tbody>
-          </table>
-        </div>
-      )}
+                </thead>
+                <tbody>
+                  {filteredMenus.length === 0 && (
+                    <tr>
+                      <td colSpan={5} className="px-4 py-10 text-center text-xs text-slate-400">
+                        Không có menu khớp với từ khóa.
+                      </td>
+                    </tr>
+                  )}
+                  {filteredMenus.map(m => {
+                    const flags = currentFlags(m.key)
+                    const depth = m.parentKey ? 1 : 0
+                    return (
+                      <tr key={m.key} className="border-t border-slate-100 hover:bg-brand-50/30">
+                        <td className="px-4 py-2" style={{ paddingLeft: `${1 + depth * 1.25}rem` }}>
+                          <div className="font-medium text-slate-800">{m.label}</div>
+                          <div className="font-mono text-[10px] text-slate-400">{m.key}</div>
+                        </td>
+                        {CRUD_COLS.map(c => (
+                          <td key={c.key} className="px-2 py-2 text-center">
+                            <input
+                              type="checkbox"
+                              className="h-4 w-4 cursor-pointer accent-brand-600"
+                              checked={flags[c.key]}
+                              disabled={upsert.isPending}
+                              onChange={() => toggle(m.key, c.key)}
+                            />
+                          </td>
+                        ))}
+                      </tr>
+                    )
+                  })}
+                </tbody>
+              </table>
+            </div>
+          )}
+        </section>
+
+        {/* ===== Panel 3: Stats / summary ===== */}
+        <section className="flex flex-col rounded-xl border border-slate-200 bg-white shadow-sm">
+          <header className="flex items-center gap-2 border-b border-slate-100 px-4 py-3">
+            <BarChart3 className="h-4 w-4 text-brand-600" />
+            <h2 className="text-sm font-semibold text-slate-700">3. Tổng quan</h2>
+          </header>
+          <div className="flex-1 space-y-4 overflow-y-auto p-4">
+            {!roleId ? (
+              <div className="text-center text-xs text-slate-400">Chưa có vai trò được chọn.</div>
+            ) : (
+              <>
+                <div>
+                  <div className="text-[10px] font-semibold uppercase tracking-wider text-slate-400">Vai trò</div>
+                  <div className="mt-1 flex items-center gap-2 text-sm font-semibold text-slate-800">
+                    <Shield className="h-3.5 w-3.5 text-brand-600" />
+                    {selectedRole?.name}
+                  </div>
+                </div>
+
+                <div>
+                  <div className="text-[10px] font-semibold uppercase tracking-wider text-slate-400">Quyền đã cấp</div>
+                  <div className="mt-1 flex items-baseline gap-1">
+                    <span className="text-3xl font-bold text-brand-600 tabular-nums">{stats.granted}</span>
+                    <span className="text-xs text-slate-400">/ {stats.total}</span>
+                  </div>
+                  <div className="mt-1.5 h-1.5 overflow-hidden rounded-full bg-slate-100">
+                    <div
+                      className="h-full rounded-full bg-brand-500 transition-all"
+                      style={{ width: `${stats.total > 0 ? (stats.granted / stats.total) * 100 : 0}%` }}
+                    />
+                  </div>
+                </div>
+
+                <div className="space-y-1.5">
+                  <div className="text-[10px] font-semibold uppercase tracking-wider text-slate-400">Chi tiết CRUD</div>
+                  {CRUD_COLS.map(c => (
+                    <div key={c.key} className="flex items-center justify-between rounded-md border border-slate-100 px-2.5 py-1.5">
+                      <span className={cn('rounded px-1.5 py-0.5 text-[11px] font-medium', c.tone)}>
+                        {c.label}
+                      </span>
+                      <span className="font-mono text-xs text-slate-600">
+                        {stats.breakdown[c.key]}
+                        <span className="text-slate-400"> / {stats.totalMenus}</span>
+                      </span>
+                    </div>
+                  ))}
+                </div>
+
+                <div className="rounded-md border border-slate-100 bg-slate-50 p-3 text-[11px] leading-relaxed text-slate-500">
+                  <strong>Tip:</strong> click header ô tick ở panel 2 để tick/untick toàn cột. Thay đổi tự lưu.
+                </div>
+              </>
+            )}
+          </div>
+        </section>
+      </div>
     </div>
   )
 }