<template>
  <div>
    <TransitionRoot as="template" :show="sidebarOpen">
      <Dialog class="relative z-50 lg:hidden" @close="sidebarOpen = false">
        <TransitionChild
          as="template"
          enter="transition-opacity ease-linear duration-300"
          enter-from="opacity-0"
          enter-to="opacity-100"
          leave="transition-opacity ease-linear duration-300"
          leave-from="opacity-100"
          leave-to="opacity-0"
        >
          <div class="fixed inset-0 bg-zinc-900/80" />
        </TransitionChild>

        <div class="fixed inset-0 flex">
          <TransitionChild
            as="template"
            enter="transition ease-in-out duration-300 transform"
            enter-from="-translate-x-full"
            enter-to="translate-x-0"
            leave="transition ease-in-out duration-300 transform"
            leave-from="translate-x-0"
            leave-to="-translate-x-full"
          >
            <DialogPanel class="relative mr-16 flex w-full max-w-xs flex-1">
              <TransitionChild
                as="template"
                enter="ease-in-out duration-300"
                enter-from="opacity-0"
                enter-to="opacity-100"
                leave="ease-in-out duration-300"
                leave-from="opacity-100"
                leave-to="opacity-0"
              >
                <div
                  class="absolute left-full top-0 flex w-16 justify-center pt-5"
                >
                  <button
                    type="button"
                    class="-m-2.5 p-2.5"
                    @click="sidebarOpen = false"
                  >
                    <span class="sr-only">Close sidebar</span>
                    <XMarkIcon class="size-6 text-white" aria-hidden="true" />
                  </button>
                </div>
              </TransitionChild>
              <!-- Sidebar component, swap this element with another sidebar if you like -->
              <div
                class="flex grow flex-col gap-y-5 overflow-y-auto bg-zinc-950 px-4 pb-4"
              >
                <div class="inline-flex items-center py-4 px-4">
                  <Wordmark class="h-full w-auto" alt="Drop`" />
                </div>
                <nav>
                  <ul
                    role="list"
                    class="grid grid-cols-2 items-stretch gap-4 px-5"
                  >
                    <li v-for="(item, itemIdx) in navigation" :key="item.route">
                      <NuxtLink
                        :href="item.route"
                        :class="[
                          itemIdx === currentNavigationIndex
                            ? 'bg-zinc-900 text-white'
                            : 'text-zinc-400 hover:bg-zinc-900 hover:text-white',
                          'transition group flex flex-col items-center grow gap-x-3 rounded-md px-2 py-3 text-sm font-semibold leading-6',
                        ]"
                      >
                        <component
                          :is="item.icon"
                          class="h-6 w-6 shrink-0"
                          aria-hidden="true"
                        />
                        <span class="text-xs text-center">{{
                          item.label
                        }}</span>
                      </NuxtLink>
                    </li>
                  </ul>
                </nav>
              </div>
            </DialogPanel>
          </TransitionChild>
        </div>
      </Dialog>
    </TransitionRoot>

    <!-- Static sidebar for desktop -->
    <div
      class="hidden lg:fixed lg:inset-y-0 lg:left-0 lg:z-50 lg:block lg:w-20 lg:overflow-y-auto lg:bg-zinc-950 lg:pb-4"
    >
      <div class="flex flex-col h-24 shrink-0 items-center justify-center">
        <Logo class="h-8 w-auto" />
        <span
          class="mt-1 bg-blue-400 px-1 py-0.5 rounded-md text-xs font-bold font-display"
          >Admin</span
        >
      </div>
      <nav class="mt-8">
        <ul role="list" class="flex flex-col items-stretch space-y-4 mx-2">
          <li v-for="(item, itemIdx) in navigation" :key="item.route">
            <NuxtLink
              :href="item.route"
              :class="[
                itemIdx === currentNavigationIndex
                  ? 'bg-zinc-900 text-white'
                  : 'text-zinc-400 hover:bg-zinc-900 hover:text-white',
                'transition group flex flex-col items-center grow gap-x-3 rounded-md px-2 py-3 text-sm font-semibold leading-6',
              ]"
            >
              <component
                :is="item.icon"
                class="h-6 w-6 shrink-0"
                aria-hidden="true"
              />
              <span class="text-xs text-center">{{ item.label }}</span>
            </NuxtLink>
          </li>
        </ul>
      </nav>
    </div>

    <div
      class="sticky top-0 z-40 flex items-center gap-x-6 bg-zinc-900 px-4 py-4 shadow-sm sm:px-6 lg:hidden"
    >
      <button
        type="button"
        class="-m-2.5 p-2.5 text-zinc-400 lg:hidden"
        @click="sidebarOpen = true"
      >
        <span class="sr-only">Open sidebar</span>
        <Bars3Icon class="h-6 w-6" aria-hidden="true" />
      </button>
    </div>

    <main class="lg:pl-20 min-h-screen bg-zinc-900 flex flex-col">
      <div
        class="flex flex-col grow px-4 py-2 sm:py-10 sm:px-6 lg:px-8 lg:py-6"
      >
        <!-- Main area -->
        <NuxtPage />
      </div>
    </main>
  </div>
</template>

<script setup lang="ts">
import { ref, type Component } from "vue";
import {
  Dialog,
  DialogPanel,
  Menu,
  MenuButton,
  MenuItem,
  MenuItems,
  TransitionChild,
  TransitionRoot,
} from "@headlessui/vue";
import {
  Bars3Icon,
  ServerStackIcon,
  HomeIcon,
  LockClosedIcon,
  Cog6ToothIcon,
  FlagIcon,
  BellIcon,
  DocumentIcon,
  UserGroupIcon,
} from "@heroicons/vue/24/outline";
import type { NavigationItem } from "~/composables/types";
import { useCurrentNavigationIndex } from "~/composables/current-page-engine";
import { ArrowLeftIcon } from "@heroicons/vue/16/solid";
import { XMarkIcon } from "@heroicons/vue/24/solid";

const navigation: Array<NavigationItem & { icon: Component }> = [
  { label: "Home", route: "/admin", prefix: "/admin", icon: HomeIcon },
  {
    label: "Library",
    route: "/admin/library",
    prefix: "/admin/library",
    icon: ServerStackIcon,
  },
  {
    label: "Meta",
    route: "/admin/metadata",
    prefix: "/admin/metadata",
    icon: DocumentIcon,
  },
  {
    label: "Users",
    route: "/admin/users",
    prefix: "/admin/users",
    icon: UserGroupIcon,
  },
  {
    label: "Settings",
    route: "/admin/settings",
    prefix: "/admin/settings",
    icon: Cog6ToothIcon,
  },
  {
    label: "Back",
    route: "/",
    prefix: ".",
    icon: ArrowLeftIcon,
  },
];

const notifications = useNotifications();
const unreadNotifications = computed(() =>
  notifications.value.filter((e) => !e.read)
);

const currentNavigationIndex = useCurrentNavigationIndex(navigation);

const sidebarOpen = ref(false);
const router = useRouter();
router.afterEach(() => {
  sidebarOpen.value = false;
});

useHead({
  titleTemplate(title) {
    return title ? `${title} | Admin | Drop` : `Admin Dashboard | Drop`;
  },
});
</script>
