<script lang="ts" setup>
import { Link, usePage } from '@inertiajs/vue3'
import { computed, onMounted, ref, watch } from 'vue'
import { accountNavItems } from '@/navigation/account'
import AppSidebar from '@/Components/AppSidebar.vue'
import AppTopNavbar from '@/Components/AppTopNavbar.vue'
import CommandPalette from '@/Components/CommandPalette.vue'
import NotificationPanel from '@/Components/NotificationPanel.vue'
import ToastStack from '@/Components/ToastStack.vue'
import { useToastStore } from '@/stores/toast'

interface AuthUser {
  name: string
  email: string
}

interface PageProps {
  auth: { user: AuthUser | null }
  domains: { marketing: string; account: string; admin: string }
  impersonating: boolean
  flash?: { success?: string; error?: string; info?: string }
}

const page = usePage()
const props = computed(() => page.props as unknown as PageProps)
const user = computed(() => props.value.auth?.user)
const isImpersonating = computed(() => props.value.impersonating)
const adminUrl = computed(() => `https://${props.value.domains?.admin}`)

const sidebarCollapsed = ref<boolean>(false)
const mobileOpen = ref<boolean>(false)
const notificationPanelOpen = ref<boolean>(false)
const notificationPanel = ref<InstanceType<typeof NotificationPanel> | null>(null)
const commandPalette = ref<InstanceType<typeof CommandPalette> | null>(null)

onMounted(() => {
  const saved = localStorage.getItem('ezscale-account-nav-collapsed')
  if (saved !== null) sidebarCollapsed.value = saved === 'true'
})

watch(sidebarCollapsed, (val) => {
  localStorage.setItem('ezscale-account-nav-collapsed', String(val))
})

const toastStore = useToastStore()
watch(() => page.props, () => {
  const flash = (page.props as unknown as PageProps).flash
  if (flash?.success) toastStore.success(flash.success)
  if (flash?.error) toastStore.error(flash.error)
  if (flash?.info) toastStore.info(flash.info)
}, { immediate: true })

const paletteItems = computed(() => {
  const items: Array<{ title: string; icon: string; href: string; section: string }> = []
  for (const item of accountNavItems) {
    if ('heading' in item) continue
    if ('to' in item) {
      items.push({ title: item.title, icon: item.icon || 'tabler-circle', href: item.to, section: 'Navigation' })
    }
  }
  return items
})
</script>

<template>
  <VApp>
    <div class="app-layout">
      <AppSidebar
        :nav-items="accountNavItems"
        v-model:collapsed="sidebarCollapsed"
        v-model:mobile-open="mobileOpen"
      />

      <div
        class="app-content-wrapper"
        :style="{ marginLeft: sidebarCollapsed ? '72px' : '260px' }"
      >
        <AppTopNavbar
          @toggle-sidebar="mobileOpen = !mobileOpen"
          @open-command-palette="commandPalette?.open()"
        >
          <VBadge
            :content="notificationPanel?.unreadCount"
            :model-value="(notificationPanel?.unreadCount ?? 0) > 0"
            color="error"
            overlap
          >
            <VBtn
              icon="tabler-bell"
              variant="text"
              size="small"
              @click="notificationPanelOpen = true"
            />
          </VBadge>

          <span v-if="user" class="text-body-2 ms-3">
            {{ user.name }}
          </span>

          <Link
            v-if="user"
            href="/logout"
            method="post"
            as="button"
            class="text-decoration-none ms-2"
          >
            <VBtn variant="text" size="small" color="error">
              <VIcon icon="tabler-logout" start />
              Log out
            </VBtn>
          </Link>
        </AppTopNavbar>

        <main class="app-page-content">
          <!-- Impersonation Alert -->
          <VAlert
            v-if="isImpersonating"
            type="warning"
            variant="tonal"
            prominent
            class="mb-6"
          >
            <VAlertTitle class="d-flex align-center justify-space-between flex-wrap gap-4">
              <div class="d-flex align-center gap-2">
                <VIcon icon="tabler-user-shield" />
                <span class="font-weight-bold">Impersonation Active</span>
              </div>
              <Link
                :href="adminUrl + '/impersonate/stop'"
                method="post"
                as="button"
                class="text-decoration-none"
              >
                <VBtn color="warning" variant="flat" size="small">
                  <VIcon icon="tabler-logout" start />
                  Stop Impersonating
                </VBtn>
              </Link>
            </VAlertTitle>
            <div class="mt-2">
              You are viewing the account as <strong>{{ user?.name }}</strong>. All actions will be attributed to this user.
            </div>
          </VAlert>

          <slot />
        </main>

        <footer class="app-footer">
          &copy; {{ new Date().getFullYear() }} EZSCALE. All rights reserved.
        </footer>
      </div>

      <div
        class="app-overlay"
        :class="{ 'app-overlay--visible': mobileOpen }"
        @click="mobileOpen = false"
      />
    </div>

    <NotificationPanel
      ref="notificationPanel"
      v-model="notificationPanelOpen"
    />

    <CommandPalette
      ref="commandPalette"
      :items="paletteItems"
    />

    <ToastStack />
  </VApp>
</template>
