import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuLabel,
  DropdownMenuSeparator,
  DropdownMenuTrigger,
  DropdownMenuSub,
  DropdownMenuSubContent,
  DropdownMenuSubTrigger,
} from "@/components/ui/dropdown-menu"
import { Button } from "@/components/ui/button"
import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar"
import { signOut } from 'next-auth/react'
import { useTheme } from "next-themes"
import { Moon, Sun, Monitor } from "lucide-react"

interface UserNavProps {
  user: {
    name?: string | null
    email?: string | null
    image?: string | null
  }
}

export function UserNav({ user }: UserNavProps) {
  const { setTheme } = useTheme()

  return (
    <DropdownMenu>
      <DropdownMenuTrigger asChild>
        <Button variant="ghost" className="relative h-8 w-8 rounded-full">
          <Avatar className="h-8 w-8">
            <AvatarImage src={user.image || ''} alt={user.name || ''} />
            <AvatarFallback>{user.name?.[0]}</AvatarFallback>
          </Avatar>
        </Button>
      </DropdownMenuTrigger>
      <DropdownMenuContent className="w-56" align="end" forceMount>
        <DropdownMenuLabel className="font-normal">
          <div className="flex flex-col space-y-1">
            <p className="text-sm font-medium leading-none">{user.name}</p>
            <p className="text-xs leading-none text-muted-foreground">
              {user.email}
            </p>
          </div>
        </DropdownMenuLabel>
        <DropdownMenuSeparator />
        <DropdownMenuSub>
          <DropdownMenuSubTrigger>
            <Sun className="h-4 w-4 mr-2 rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
            <Moon className="absolute h-4 w-4 mr-2 rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
            <span className="ml-2">主题</span>
          </DropdownMenuSubTrigger>
          <DropdownMenuSubContent>
            <DropdownMenuItem onClick={() => setTheme("light")}>
              <Sun className="h-4 w-4 mr-2" />
              浅色
            </DropdownMenuItem>
            <DropdownMenuItem onClick={() => setTheme("dark")}>
              <Moon className="h-4 w-4 mr-2" />
              深色
            </DropdownMenuItem>
            <DropdownMenuItem onClick={() => setTheme("system")}>
              <Monitor className="h-4 w-4 mr-2" />
              跟随系统
            </DropdownMenuItem>
          </DropdownMenuSubContent>
        </DropdownMenuSub>
        <DropdownMenuSeparator />
        <DropdownMenuItem
          className="text-red-600 cursor-pointer"
          onClick={() => signOut({ callbackUrl: '/' })}
        >
          退出登录
        </DropdownMenuItem>
      </DropdownMenuContent>
    </DropdownMenu>
  )
}