import {
  IconAnchor,
  IconArrowsExchange,
  IconBook2,
  IconChartBar,
  IconClipboardList,
  IconClipboardText,
  IconCreditCard,
  IconFileDescription,
  IconFilePlus,
  IconGauge,
  IconGavel,
  IconHeart,
  IconId,
  IconLayoutDashboard,
  IconListCheck,
  IconQuestionMark,
  IconReport,
  IconRosetteDiscountCheck,
  IconRubberStamp,
  IconSettings,
  IconShieldCheck,
  IconShieldOff,
  IconShip,
  IconTruck,
  IconUsers,
  IconUserShield,
} from '@tabler/icons-react';
import type { NavSection } from '@ema-platform/ui';
import { LICENSE_PERMISSIONS as P } from '@ema-platform/auth';

/**
 * Every licence-type queue and its review workspace share one gate: the
 * licence application queue permissions, granted as any-of.
 */
const APPLICATION_QUEUE = [P.VIEW_APPLICATION_QUEUE, P.VIEW_APPLICATIONS];

/**
 * The backoffice information architecture.
 *
 * Seven top-level groups, none deeper than one level of nesting. `soon` marks
 * screens with no backend behind them, so a reviewer can tell at a glance what
 * actually works.
 *
 * `groupLicensing` is scoped strictly to logistics-operator licences (the
 * permission a company holds to trade) — Certificate Designer and Payment
 * Config serve every family (logistics licences, seafarer certificates,
 * seafarer/vessel documents alike), so they sit in `groupShared` instead of
 * implying they're licensing-only.
 */
export const NAV_SECTIONS: NavSection[] = [
  {
    items: [{ to: '/dashboard', label: 'nav.dashboard', icon: IconLayoutDashboard }],
  },
  {
    label: 'nav.groupLicensing',
    items: [
      {
        to: '/licence-review',
        label: 'nav.allApplications',
        icon: IconListCheck,
        permissions: APPLICATION_QUEUE,
      },
      {
        // A disclosure, not a destination — each child deep-links the grid to
        // one type, which is a facet of the same workspace.
        label: 'nav.byType',
        icon: IconTruck,
        permissions: APPLICATION_QUEUE,
        children: [
          { to: '/licence-review/type/FREIGHT_FORWARDER', label: 'nav.typeFreightForwarder', icon: IconTruck, permissions: APPLICATION_QUEUE },
          { to: '/licence-review/type/SHIPPING_AGENT', label: 'nav.typeShippingAgent', icon: IconShip, permissions: APPLICATION_QUEUE },
          { to: '/licence-review/type/COMBINED_SA_FF', label: 'nav.typeCombined', icon: IconFileDescription, permissions: APPLICATION_QUEUE },
          { to: '/licence-review/type/JOINT_INVESTOR', label: 'nav.typeJointInvestment', icon: IconUsers, permissions: APPLICATION_QUEUE },
          { to: '/licence-review/type/MULTIMODAL_TRANSPORT_OPERATOR', label: 'nav.typeMto', icon: IconAnchor, permissions: APPLICATION_QUEUE },
        ],
      },
      {
        to: '/licence-register',
        label: 'nav.licenceRegister',
        icon: IconListCheck,
        permissions: [P.VIEW_LICENSES],
      },
      { to: '/licence-review/type/PRE_WAIVER', label: 'nav.preWaiverQueue', icon: IconShieldOff, permissions: APPLICATION_QUEUE },
      { to: '/licence-review/type/POST_WAIVER', label: 'nav.postWaiverQueue', icon: IconShieldOff, permissions: APPLICATION_QUEUE },
      {
        // Every figure on it is derived from the licence application queue.
        to: '/logistics-head-dashboard',
        label: 'nav.logisticsHeadDashboard',
        icon: IconGauge,
        permissions: APPLICATION_QUEUE,
      },
    ],
  },
  {
    label: 'nav.groupSeafarer',
    items: [
      { to: '/seafarer-registry', label: 'nav.seafarerRegistry', icon: IconUsers, permissions: [P.VIEW_SEAFARER_REGISTRY] },
      { to: '/seafarer-registrations', label: 'nav.seafarerRegistrationQueue', icon: IconId, permissions: APPLICATION_QUEUE },
      { to: '/licence-review/type/CERTIFICATE_OF_COMPETENCY', label: 'nav.cocQueue', icon: IconShieldCheck, permissions: APPLICATION_QUEUE },
      { to: '/licence-review/type/CERTIFICATE_OF_PROFICIENCY', label: 'nav.copQueue', icon: IconShieldCheck, permissions: APPLICATION_QUEUE },
      { to: '/seaman-book-queue', label: 'nav.seamanBookQueue', icon: IconBook2, permissions: APPLICATION_QUEUE },
      { to: '/btc-queue', label: 'nav.btcQueue', icon: IconShieldCheck, permissions: APPLICATION_QUEUE },
      { to: '/licence-review/type/ENDORSEMENT_COC', label: 'nav.endorsementCocQueue', icon: IconRubberStamp, permissions: APPLICATION_QUEUE },
      { to: '/licence-review/type/ENDORSEMENT_GOC', label: 'nav.endorsementGocQueue', icon: IconRubberStamp, permissions: APPLICATION_QUEUE },
      { to: '/sea-service-verification', label: 'nav.seaServiceVerification', icon: IconAnchor, permissions: [P.VERIFY_SEAFARER_RECORDS] },
      { to: '/medical-verification', label: 'nav.medicalVerification', icon: IconHeart, permissions: [P.VERIFY_SEAFARER_RECORDS] },
    ],
  },
  {
    label: 'nav.groupVessels',
    items: [
      { to: '/vessel-registration-report', label: 'nav.vesselRegistrationReport', icon: IconChartBar, permissions: [P.VIEW_VESSEL_REGISTRY] },
      { to: '/vessel-registration-queue', label: 'nav.vesselRegistrationQueue', icon: IconAnchor, permissions: [P.VIEW_VESSEL_REGISTRY] },
      { to: '/licence-review/type/VESSEL_REGISTRATION', label: 'nav.vesselRegistrationApplicationQueue', icon: IconAnchor, permissions: APPLICATION_QUEUE },
      { to: '/licence-review/type/VESSEL_OWNERSHIP_TRANSFER', label: 'nav.ownershipTransferQueue', icon: IconArrowsExchange, permissions: APPLICATION_QUEUE },
      { to: '/vessel-registration-queue/new', label: 'nav.vesselFormBuilder', icon: IconFilePlus, soon: true, permissions: [P.VIEW_VESSEL_REGISTRY] },
    ],
  },
  {
    label: 'nav.groupExaminations',
    items: [
      { to: '/questions', label: 'nav.questions', icon: IconQuestionMark, permissions: [P.APPROVE_QUESTION, P.AUTHOR_QUESTION] },
      {
        to: '/exams',
        label: 'nav.exams',
        icon: IconClipboardList,
        permissions: [P.MANAGE_EXAMS, P.RECORD_EXAM_ATTENDANCE, P.MANAGE_EXAM_INCIDENTS, P.PUBLISH_EXAM_RESULT],
      },
      {
        to: '/exam-results',
        label: 'nav.examResults',
        icon: IconReport,
        permissions: [P.RECORD_EXAM_RESULT, P.MODERATE_EXAM_RESULT, P.APPROVE_EXAM_RESULT, P.PUBLISH_EXAM_RESULT],
      },
      { to: '/exam-appeals', label: 'nav.examAppeals', icon: IconGavel, permissions: [P.DECIDE_EXAM_APPEAL] },
    ],
  },
  {
    label: 'nav.groupShared',
    items: [
      {
        to: '/certificate-designer',
        label: 'nav.certificateDesigner',
        icon: IconRosetteDiscountCheck,
        permissions: [P.VIEW_TEMPLATES],
      },
      {
        to: '/certificate-requirements',
        label: 'nav.certificateRequirements',
        icon: IconClipboardText,
        permissions: [P.VIEW_LICENSE_TYPES],
      },
      {
        to: '/payment-config',
        label: 'nav.paymentConfig',
        icon: IconCreditCard,
        permissions: [P.VIEW_PAYMENTS],
      },
    ],
  },
  {
    label: 'nav.groupAdministration',
    items: [
      { to: '/um/user-management/dashboard', label: 'nav.userManagement', icon: IconUserShield },
      {
        // Professions, locations and certifications have no dedicated keys;
        // the config-view keys are the closest published contract.
        to: '/configuration',
        label: 'nav.configuration',
        icon: IconSettings,
        permissions: [P.VIEW_LICENSE_TYPES, P.VIEW_TEMPLATES],
      },
      { to: '/analytics', label: 'nav.analytics', icon: IconChartBar, soon: true },
    ],
  },
  // `/profile` deliberately absent: it is a property of the signed-in user,
  // not a destination in the authority's workload, and now lives in the
  // AppHeader user menu alongside sign-out.
];