improvement(waitlist): added batch send requests, fixed UI

sim/app/admin/page.tsx

@@ -3,8 +3,25 @@ import PasswordAuth from './password-auth'
 export default function AdminPage() {
   return (
     <PasswordAuth>
-      <div>
-        <h1>Admin Page</h1>
+      <div className="max-w-screen-2xl mx-auto px-4 sm:px-6 md:px-8 py-6">
+        <div className="mb-6 px-1">
+          <h1 className="text-2xl font-bold tracking-tight">Admin Dashboard</h1>
+          <p className="text-muted-foreground mt-1 text-sm">
+            Manage Sim Studio platform settings and users.
+          </p>
+        </div>
+
+        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-4">
+          <a 
+            href="/admin/waitlist" 
+            className="border border-gray-200 dark:border-gray-800 rounded-md p-4 hover:bg-gray-50 dark:hover:bg-gray-900 transition-colors"
+          >
+            <h2 className="text-lg font-medium">Waitlist Management</h2>
+            <p className="text-sm text-muted-foreground mt-1">
+              Review and manage users on the waitlist
+            </p>
+          </a>
+        </div>
       </div>
     </PasswordAuth>
   )

sim/app/admin/waitlist/components/batch-actions/batch-actions.tsx

@@ -0,0 +1,70 @@
+import { Button } from '@/components/ui/button'
+import { CheckSquareIcon, SquareIcon, UserCheckIcon, XIcon } from 'lucide-react'
+
+interface BatchActionsProps {
+  hasSelectedEmails: boolean
+  selectedCount: number
+  loading: boolean
+  onToggleSelectAll: () => void
+  onClearSelections: () => void
+  onBatchApprove: () => void
+  entriesExist: boolean
+  someSelected: boolean
+}
+
+export function BatchActions({
+  hasSelectedEmails,
+  selectedCount,
+  loading,
+  onToggleSelectAll,
+  onClearSelections,
+  onBatchApprove,
+  entriesExist,
+  someSelected,
+}: BatchActionsProps) {
+  if (!entriesExist) return null;
+
+  return (
+    <div className="flex flex-wrap items-center gap-2 mb-2">
+      <Button
+        size="sm"
+        variant={hasSelectedEmails ? "default" : "outline"}
+        onClick={onToggleSelectAll}
+        disabled={loading || !entriesExist}
+        className="whitespace-nowrap h-8 px-2.5 text-xs"
+      >
+        {someSelected ? (
+          <CheckSquareIcon className="h-3.5 w-3.5 mr-1.5" />
+        ) : (
+          <SquareIcon className="h-3.5 w-3.5 mr-1.5" />
+        )}
+        {someSelected ? "Deselect All" : "Select All"}
+      </Button>
+
+      {hasSelectedEmails && (
+        <>
+          <Button
+            size="sm"
+            variant="outline"
+            onClick={onClearSelections}
+            className="whitespace-nowrap h-8 px-2.5 text-xs"
+          >
+            <XIcon className="h-3.5 w-3.5 mr-1.5" />
+            Clear Selection
+          </Button>
+
+          <Button
+            size="sm"
+            variant="default"
+            onClick={onBatchApprove}
+            disabled={!hasSelectedEmails || loading}
+            className="whitespace-nowrap h-8 px-2.5 text-xs"
+          >
+            <UserCheckIcon className="h-3.5 w-3.5 mr-1.5" />
+            {loading ? "Processing..." : `Approve Selected (${selectedCount})`}
+          </Button>
+        </>
+      )}
+    </div>
+  )
+} 

sim/app/admin/waitlist/components/batch-results-modal/batch-results-modal.tsx

@@ -0,0 +1,79 @@
+import { CheckIcon, XIcon } from 'lucide-react'
+import { Button } from '@/components/ui/button'
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from '@/components/ui/dialog'
+
+type BatchResult = {
+  email: string
+  success: boolean
+  message: string
+}
+
+interface BatchResultsModalProps {
+  open: boolean
+  onOpenChange: (open: boolean) => void
+  results: Array<BatchResult> | null
+  onClose: () => void
+}
+
+export function BatchResultsModal({
+  open,
+  onOpenChange,
+  results,
+  onClose,
+}: BatchResultsModalProps) {
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="sm:max-w-[600px]">
+        <DialogHeader>
+          <DialogTitle>Batch Approval Results</DialogTitle>
+          <DialogDescription>
+            Results of the batch approval operation.
+          </DialogDescription>
+        </DialogHeader>
+        <div className="max-h-[400px] overflow-y-auto">
+          {results && results.length > 0 ? (
+            <div className="space-y-2 pt-2">
+              <div className="flex justify-between mb-2">
+                <span>Total: {results.length}</span>
+                <span>
+                  Success: {results.filter(r => r.success).length} / 
+                  Failed: {results.filter(r => !r.success).length}
+                </span>
+              </div>
+              {results.map((result, idx) => (
+                <div 
+                  key={idx} 
+                  className={`p-2 rounded text-sm ${
+                    result.success 
+                      ? 'bg-green-50 border border-green-200 text-green-800' 
+                      : 'bg-red-50 border border-red-200 text-red-800'
+                  }`}
+                >
+                  <div className="flex items-center gap-2">
+                    {result.success ? <CheckIcon className="h-4 w-4" /> : <XIcon className="h-4 w-4" />}
+                    <span className="font-medium">{result.email}</span>
+                  </div>
+                  <div className="ml-6 text-xs mt-1">{result.message}</div>
+                </div>
+              ))}
+            </div>
+          ) : (
+            <div className="py-4 text-center text-gray-500">No results to display</div>
+          )}
+        </div>
+        <DialogFooter>
+          <Button onClick={onClose}>
+            Close
+          </Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  )
+} 

sim/app/admin/waitlist/components/filter-bar/components/filter-button.tsx

@@ -0,0 +1,24 @@
+import { Button } from '@/components/ui/button'
+import { ReactNode } from 'react'
+
+interface FilterButtonProps {
+  active: boolean
+  onClick: () => void
+  icon: ReactNode
+  label: string
+  className?: string
+}
+
+export function FilterButton({ active, onClick, icon, label, className }: FilterButtonProps) {
+  return (
+    <Button
+      variant={active ? 'default' : 'ghost'}
+      size="sm"
+      onClick={onClick}
+      className={`flex items-center gap-1.5 h-9 px-3 ${className || ''}`}
+    >
+      {icon}
+      <span>{label}</span>
+    </Button>
+  )
+} 

sim/app/admin/waitlist/components/filter-bar/filter-bar.tsx

@@ -0,0 +1,74 @@
+import {
+  UserIcon,
+  UserCheckIcon, 
+  UserXIcon,
+  CheckIcon
+} from 'lucide-react'
+import { FilterButton } from './components/filter-button'
+
+interface FilterBarProps {
+  currentStatus: string
+  onStatusChange: (status: string) => void
+}
+
+export function FilterBar({ currentStatus, onStatusChange }: FilterBarProps) {
+  return (
+    <div className="flex flex-wrap items-center gap-1.5">
+      <FilterButton
+        active={currentStatus === 'all'}
+        onClick={() => onStatusChange('all')}
+        icon={<UserIcon className="h-3.5 w-3.5" />}
+        label="All"
+        className={
+          currentStatus === 'all'
+            ? 'bg-blue-100 text-blue-900 hover:bg-blue-200 hover:text-blue-900'
+            : ''
+        }
+      />
+      <FilterButton
+        active={currentStatus === 'pending'}
+        onClick={() => onStatusChange('pending')}
+        icon={<UserIcon className="h-3.5 w-3.5" />}
+        label="Pending"
+        className={
+          currentStatus === 'pending'
+            ? 'bg-amber-100 text-amber-900 hover:bg-amber-200 hover:text-amber-900'
+            : ''
+        }
+      />
+      <FilterButton
+        active={currentStatus === 'approved'}
+        onClick={() => onStatusChange('approved')}
+        icon={<UserCheckIcon className="h-3.5 w-3.5" />}
+        label="Approved"
+        className={
+          currentStatus === 'approved'
+            ? 'bg-green-100 text-green-900 hover:bg-green-200 hover:text-green-900'
+            : ''
+        }
+      />
+      <FilterButton
+        active={currentStatus === 'rejected'}
+        onClick={() => onStatusChange('rejected')}
+        icon={<UserXIcon className="h-3.5 w-3.5" />}
+        label="Rejected"
+        className={
+          currentStatus === 'rejected'
+            ? 'bg-red-100 text-red-900 hover:bg-red-200 hover:text-red-900'
+            : ''
+        }
+      />
+      <FilterButton
+        active={currentStatus === 'signed_up'}
+        onClick={() => onStatusChange('signed_up')}
+        icon={<CheckIcon className="h-3.5 w-3.5" />}
+        label="Signed Up"
+        className={
+          currentStatus === 'signed_up'
+            ? 'bg-purple-100 text-purple-900 hover:bg-purple-200 hover:text-purple-900'
+            : ''
+        }
+      />
+    </div>
+  )
+} 

sim/app/admin/waitlist/components/pagination/pagination.tsx

@@ -0,0 +1,87 @@
+import { Button } from '@/components/ui/button'
+import {
+  ChevronLeftIcon,
+  ChevronRightIcon,
+  ChevronsLeftIcon,
+  ChevronsRightIcon,
+} from 'lucide-react'
+
+interface PaginationProps {
+  page: number
+  totalItems: number
+  itemsPerPage: number
+  loading: boolean
+  onFirstPage: () => void
+  onPrevPage: () => void
+  onNextPage: () => void
+  onLastPage: () => void
+}
+
+export function Pagination({
+  page,
+  totalItems,
+  itemsPerPage,
+  loading,
+  onFirstPage,
+  onPrevPage,
+  onNextPage,
+  onLastPage,
+}: PaginationProps) {
+  const totalPages = Math.max(1, Math.ceil(totalItems / itemsPerPage))
+
+  return (
+    <div className="flex items-center justify-center gap-1.5 my-3 pb-1">
+      <div className="flex items-center gap-1">
+        <Button
+          variant="outline"
+          size="sm"
+          onClick={onFirstPage}
+          disabled={page === 1 || loading}
+          title="First Page"
+          className="h-8 w-8 p-0"
+        >
+          <ChevronsLeftIcon className="h-3.5 w-3.5" />
+        </Button>
+        <Button
+          variant="outline"
+          size="sm"
+          onClick={onPrevPage}
+          disabled={page === 1 || loading}
+          className="h-8 px-2 text-xs"
+        >
+          <ChevronLeftIcon className="h-3.5 w-3.5 mr-1" />
+          Prev
+        </Button>
+      </div>
+
+      <span className="text-xs text-muted-foreground mx-2">
+        Page {page} of {totalPages}
+        &nbsp;•&nbsp;
+        {totalItems} total entries
+      </span>
+
+      <div className="flex items-center gap-1">
+        <Button
+          variant="outline"
+          size="sm"
+          onClick={onNextPage}
+          disabled={page >= totalPages || loading}
+          className="h-8 px-2 text-xs"
+        >
+          Next
+          <ChevronRightIcon className="h-3.5 w-3.5 ml-1" />
+        </Button>
+        <Button
+          variant="outline"
+          size="sm"
+          onClick={onLastPage}
+          disabled={page >= totalPages || loading}
+          title="Last Page"
+          className="h-8 w-8 p-0"
+        >
+          <ChevronsRightIcon className="h-3.5 w-3.5" />
+        </Button>
+      </div>
+    </div>
+  )
+}