<script setup>
const route = useRoute()
const auth = useAuthStore()
const { has } = usePermission()

// Lokaler State für den Taschenrechner
const showCalculator = ref(false)
const tenantExtraModules = computed(() => {
  const modules = auth.activeTenantData?.extraModules
  return Array.isArray(modules) ? modules : []
})
const showMembersNav = computed(() => {
  return tenantExtraModules.value.includes("verein") && (has("members") || has("customers"))
})
const showMemberRelationsNav = computed(() => {
  return tenantExtraModules.value.includes("verein") && has("members")
})
const isAdmin = computed(() => Boolean(auth.user?.is_admin))
const tenantFeatures = computed(() => auth.activeTenantData?.features || {})
const featureEnabled = (key) => tenantFeatures.value?.[key] !== false

const links = computed(() => {
  const organisationChildren = [
    has("tasks") && featureEnabled("tasks") ? {
      label: "Aufgaben",
      to: "/tasks",
      icon: "i-heroicons-rectangle-stack"
    } : null,
    featureEnabled("planningBoard") ? {
      label: "Plantafel",
      to: "/organisation/plantafel",
      icon: "i-heroicons-calendar-days"
    } : null,
    featureEnabled("wiki") ? {
      label: "Wiki",
      to: "/wiki",
      icon: "i-heroicons-book-open"
    } : null,
  ].filter(Boolean)

  const documentChildren = [
    featureEnabled("files") ? {
      label: "Dateien",
      to: "/files",
      icon: "i-heroicons-document"
    } : null,
    featureEnabled("createdletters") ? {
      label: "Anschreiben",
      to: "/createdletters",
      icon: "i-heroicons-document",
      disabled: true
    } : null,
    featureEnabled("documentboxes") ? {
      label: "Boxen",
      to: "/standardEntity/documentboxes",
      icon: "i-heroicons-archive-box",
      disabled: true
    } : null,
  ].filter(Boolean)

  const communicationChildren = [
    featureEnabled("helpdesk") ? {
      label: "Helpdesk",
      to: "/helpdesk",
      icon: "i-heroicons-chat-bubble-left-right",
      disabled: true
    } : null,
    featureEnabled("email") ? {
      label: "E-Mail",
      to: "/email/new",
      icon: "i-heroicons-envelope",
      disabled: true
    } : null,
  ].filter(Boolean)

  const contactsChildren = [
    showMembersNav.value && featureEnabled("members") ? {
      label: "Mitglieder",
      to: "/standardEntity/members",
      icon: "i-heroicons-user-group"
    } : null,
    has("customers") && featureEnabled("customers") ? {
      label: "Kunden",
      to: "/standardEntity/customers",
      icon: "i-heroicons-user-group"
    } : null,
    has("vendors") && featureEnabled("vendors") ? {
      label: "Lieferanten",
      to: "/standardEntity/vendors",
      icon: "i-heroicons-truck"
    } : null,
    has("contacts") && featureEnabled("contactsList") ? {
      label: "Ansprechpartner",
      to: "/standardEntity/contacts",
      icon: "i-heroicons-user-group"
    } : null,
  ].filter(Boolean)

  const staffChildren = [
    featureEnabled("staffTime") ? {
      label: "Zeiten",
      to: "/staff/time",
      icon: "i-heroicons-clock",
    } : null,
  ].filter(Boolean)

  const accountingChildren = [
    featureEnabled("createDocument") ? {
      label: "Ausgangsbelege",
      to: "/createDocument",
      icon: "i-heroicons-document-text"
    } : null,
    featureEnabled("serialInvoice") ? {
      label: "Serienvorlagen",
      to: "/createDocument/serialInvoice",
      icon: "i-heroicons-document-text"
    } : null,
    featureEnabled("incomingInvoices") ? {
      label: "Eingangsbelege",
      to: "/incomingInvoices",
      icon: "i-heroicons-document-text",
    } : null,
    featureEnabled("costcentres") ? {
      label: "Kostenstellen",
      to: "/standardEntity/costcentres",
      icon: "i-heroicons-document-currency-euro"
    } : null,
    featureEnabled("accounts") ? {
      label: "Buchungskonten",
      to: "/accounts",
      icon: "i-heroicons-document-text",
    } : null,
    featureEnabled("ownaccounts") ? {
      label: "zusätzliche Buchungskonten",
      to: "/standardEntity/ownaccounts",
      icon: "i-heroicons-document-text"
    } : null,
    featureEnabled("banking") ? {
      label: "Bank",
      to: "/banking",
      icon: "i-heroicons-document-text",
    } : null,
  ].filter(Boolean)

  const inventoryChildren = [
    has("spaces") && featureEnabled("spaces") ? {
      label: "Lagerplätze",
      to: "/standardEntity/spaces",
      icon: "i-heroicons-square-3-stack-3d"
    } : null,
    has("inventoryitems") && featureEnabled("customerspaces") ? {
      label: "Kundenlagerplätze",
      to: "/standardEntity/customerspaces",
      icon: "i-heroicons-squares-plus"
    } : null,
    has("inventoryitems") && featureEnabled("customerinventoryitems") ? {
      label: "Kundeninventar",
      to: "/standardEntity/customerinventoryitems",
      icon: "i-heroicons-qr-code"
    } : null,
    has("inventoryitems") && featureEnabled("inventoryitems") ? {
      label: "Inventar",
      to: "/standardEntity/inventoryitems",
      icon: "i-heroicons-puzzle-piece"
    } : null,
    has("inventoryitems") && featureEnabled("inventoryitemgroups") ? {
      label: "Inventargruppen",
      to: "/standardEntity/inventoryitemgroups",
      icon: "i-heroicons-puzzle-piece"
    } : null,
  ].filter(Boolean)

  const masterDataChildren = [
    has("products") && featureEnabled("products") ? {
      label: "Artikel",
      to: "/standardEntity/products",
      icon: "i-heroicons-puzzle-piece"
    } : null,
    has("productcategories") && featureEnabled("productcategories") ? {
      label: "Artikelkategorien",
      to: "/standardEntity/productcategories",
      icon: "i-heroicons-puzzle-piece"
    } : null,
    has("services") && featureEnabled("services") ? {
      label: "Leistungen",
      to: "/standardEntity/services",
      icon: "i-heroicons-wrench-screwdriver"
    } : null,
    has("servicecategories") && featureEnabled("servicecategories") ? {
      label: "Leistungskategorien",
      to: "/standardEntity/servicecategories",
      icon: "i-heroicons-wrench-screwdriver"
    } : null,
    showMemberRelationsNav.value && featureEnabled("memberrelations") ? {
      label: "Mitgliedsverhältnisse",
      to: "/standardEntity/memberrelations",
      icon: "i-heroicons-identification"
    } : null,
    featureEnabled("staffProfiles") ? {
      label: "Mitarbeiter",
      to: "/staff/profiles",
      icon: "i-heroicons-user-group"
    } : null,
    featureEnabled("hourrates") ? {
      label: "Stundensätze",
      to: "/standardEntity/hourrates",
      icon: "i-heroicons-user-group"
    } : null,
    featureEnabled("projecttypes") ? {
      label: "Projekttypen",
      to: "/projecttypes",
      icon: "i-heroicons-clipboard-document-list",
    } : null,
    featureEnabled("contracttypes") ? {
      label: "Vertragstypen",
      to: "/standardEntity/contracttypes",
      icon: "i-heroicons-document-duplicate",
    } : null,
    has("vehicles") && featureEnabled("vehicles") ? {
      label: "Fahrzeuge",
      to: "/standardEntity/vehicles",
      icon: "i-heroicons-truck"
    } : null,
  ].filter(Boolean)

  const settingsChildren = [
    featureEnabled("settingsNumberRanges") ? {
      label: "Nummernkreise",
      to: "/settings/numberRanges",
      icon: "i-heroicons-clipboard-document-list",
    } : null,
    featureEnabled("settingsEmailAccounts") ? {
      label: "E-Mail Konten",
      to: "/settings/emailaccounts",
      icon: "i-heroicons-envelope",
    } : null,
    featureEnabled("settingsBanking") ? {
      label: "Bankkonten",
      to: "/settings/banking",
      icon: "i-heroicons-currency-euro",
    } : null,
    featureEnabled("settingsTexttemplates") ? {
      label: "Textvorlagen",
      to: "/settings/texttemplates",
      icon: "i-heroicons-clipboard-document-list",
    } : null,
    featureEnabled("settingsTenant") ? {
      label: "Firmeneinstellungen",
      to: "/settings/tenant",
      icon: "i-heroicons-building-office",
    } : null,
    isAdmin.value ? {
      label: "Administration",
      to: "/settings/admin",
      icon: "i-heroicons-shield-check",
    } : null,
    featureEnabled("export") ? {
      label: "Export",
      to: "/export",
      icon: "i-heroicons-clipboard-document-list"
    } : null,
  ].filter(Boolean)

  return [
    ...(auth.profile?.pinned_on_navigation || []).map(pin => {
      if (pin.type === "external") {
        return {
          label: pin.label,
          to: pin.link,
          icon: pin.icon,
          target: "_blank",
          pinned: true
        }
      } else if (pin.type === "standardEntity") {
        return {
          label: pin.label,
          to: pin.datatype === "tasks" ? `/tasks/show/${pin.id}` : `/standardEntity/${pin.datatype}/show/${pin.id}`,
          icon: pin.icon,
          pinned: true
        }
      }
    }),

    featureEnabled("dashboard") ? {
      id: 'dashboard',
      label: "Dashboard",
      to: "/",
      icon: "i-heroicons-home"
    } : null,
    featureEnabled("historyitems") ? {
      id: 'historyitems',
      label: "Logbuch",
      to: "/historyitems",
      icon: "i-heroicons-book-open"
    } : null,
    ...(organisationChildren.length > 0 ? [{
      label: "Organisation",
      icon: "i-heroicons-rectangle-stack",
      defaultOpen: false,
      children: organisationChildren
    }] : []),
    ...(documentChildren.length > 0 ? [{
      label: "Dokumente",
      icon: "i-heroicons-rectangle-stack",
      defaultOpen: false,
      children: documentChildren
    }] : []),
    ...(communicationChildren.length > 0 ? [{
      label: "Kommunikation",
      icon: "i-heroicons-megaphone",
      defaultOpen: false,
      children: communicationChildren
    }] : []),
    ...(contactsChildren.length > 0 ? [{
      label: "Kontakte",
      defaultOpen: false,
      icon: "i-heroicons-user-group",
      children: contactsChildren
    }] : []),
    ...(staffChildren.length > 0 ? [{
      label: "Mitarbeiter",
      defaultOpen: false,
      icon: "i-heroicons-user-group",
      children: staffChildren
    }] : []),
    ...(accountingChildren.length > 0 ? [{
      label: "Buchhaltung",
      defaultOpen: false,
      icon: "i-heroicons-chart-bar-square",
      children: accountingChildren
    }] : []),
    ...(inventoryChildren.length > 0 ? [{
      label: "Lager",
      icon: "i-heroicons-puzzle-piece",
      defaultOpen: false,
      children: inventoryChildren
    }] : []),
    ...(masterDataChildren.length > 0 ? [{
      label: "Stammdaten",
      defaultOpen: false,
      icon: "i-heroicons-clipboard-document",
      children: masterDataChildren
    }] : []),

    ...(has("projects") && featureEnabled("projects")) ? [{
      label: "Projekte",
      to: "/standardEntity/projects",
      icon: "i-heroicons-clipboard-document-check"
    }] : [],
    ...(has("contracts") && featureEnabled("contracts")) ? [{
      label: "Verträge",
      to: "/standardEntity/contracts",
      icon: "i-heroicons-clipboard-document"
    }] : [],
    ...(has("plants") && featureEnabled("plants")) ? [{
      label: "Objekte",
      to: "/standardEntity/plants",
      icon: "i-heroicons-clipboard-document"
    }] : [],
    ...(settingsChildren.length > 0 ? [{
      label: "Einstellungen",
      defaultOpen: false,
      icon: "i-heroicons-cog-8-tooth",
      children: settingsChildren
    }] : []),
  ].filter(Boolean)
})

const accordionItems = computed(() =>
    links.value.filter(item => Array.isArray(item.children) && item.children.length > 0)
)

const buttonItems = computed(() =>
    links.value.filter(item => !item.children || item.children.length === 0)
)
</script>

<template>
  <div class="flex flex-col gap-1">
    <UButton
        v-for="item in buttonItems"
        :key="item.label"
        variant="ghost"
        :color="(item.to && route.path === item.to) ? 'primary' : (item.pinned ? 'amber' : 'gray')"
        :icon="item.pinned ? 'i-heroicons-star' : item.icon"
        class="w-full"
        :to="item.to"
        :target="item.target"
        @click="item.click ? item.click() : null"
    >
      <UIcon
          v-if="item.pinned"
          :name="item.icon"
          class="w-5 h-5 me-2"
      />
      {{ item.label }}
    </UButton>
  </div>

  <UDivider class="my-2"/>

  <UAccordion
      :items="accordionItems"
      :multiple="false"
      class="mt-2"
  >
    <template #default="{ item, open }">
      <UButton
          variant="ghost"
          :color="(item.children?.some(c => route.path.includes(c.to))) ? 'primary' : 'gray'"
          :icon="item.icon"
          class="w-full"
      >
        {{ item.label }}
        <template #trailing>
          <UIcon
              name="i-heroicons-chevron-right-20-solid"
              class="w-5 h-5 ms-auto transform transition-transform duration-200"
              :class="[open && 'rotate-90']"
          />
        </template>
      </UButton>
    </template>

    <template #item="{ item }">
      <div class="flex flex-col">
        <UButton
            v-for="child in item.children"
            :key="child.label"
            variant="ghost"
            :color="child.to === route.path ? 'primary' : 'gray'"
            :icon="child.icon"
            class="ml-4"
            :to="child.to"
            :target="child.target"
            :disabled="child.disabled"
            @click="child.click ? child.click() : null"
        >
          {{ child.label }}
        </UButton>
      </div>
    </template>
  </UAccordion>

  <Calculator v-if="showCalculator" v-model="showCalculator"/>
</template>
