import { type ReactNode } from "react";

export interface MenuItem {
  path: string;
  label: string;
  end?: boolean;
  permission?: string | string[];
  matchPrefix?: string;
  matchAlso?: string[];
  matchExclude?: string[];
  icon: ReactNode;
}

export interface MenuSection {
  label: string;
  items: MenuItem[];
}

export const menuSections: MenuSection[] = [
  {
    label: "Přehled",
    items: [
      {
        path: "/",
        label: "Přehled",
        end: true,
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <rect x="3" y="3" width="7" height="7" rx="1" />
            <rect x="14" y="3" width="7" height="7" rx="1" />
            <rect x="14" y="14" width="7" height="7" rx="1" />
            <rect x="3" y="14" width="7" height="7" rx="1" />
          </svg>
        ),
      },
    ],
  },
  {
    label: "Docházka",
    items: [
      {
        path: "/attendance",
        label: "Záznam",
        permission: "attendance.record",
        end: true,
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <circle cx="12" cy="12" r="9" />
            <polyline points="12 7 12 12 15 15" />
          </svg>
        ),
      },
      {
        path: "/attendance/history",
        label: "Moje historie",
        permission: "attendance.history",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <polyline points="12 8 12 12 14 14" />
            <path d="M3.05 11a9 9 0 1 1 .5 4m-.5 5v-5h5" />
          </svg>
        ),
      },
      {
        path: "/attendance/requests",
        label: "Žádosti",
        permission: "attendance.record",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z" />
            <polyline points="14 2 14 8 20 8" />
            <line x1="12" y1="18" x2="12" y2="12" />
            <line x1="9" y1="15" x2="15" y2="15" />
          </svg>
        ),
      },
      {
        path: "/attendance/approval",
        label: "Schvalování",
        permission: "attendance.approve",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <path d="M9 12l2 2 4-4" />
            <circle cx="12" cy="12" r="10" />
          </svg>
        ),
      },
      {
        path: "/attendance/admin",
        label: "Správa",
        permission: "attendance.manage",
        matchPrefix: "/attendance/admin",
        matchAlso: ["/attendance/create", "/attendance/location"],
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <line x1="4" y1="21" x2="4" y2="14" />
            <line x1="4" y1="10" x2="4" y2="3" />
            <line x1="12" y1="21" x2="12" y2="12" />
            <line x1="12" y1="8" x2="12" y2="3" />
            <line x1="20" y1="21" x2="20" y2="16" />
            <line x1="20" y1="12" x2="20" y2="3" />
            <line x1="1" y1="14" x2="7" y2="14" />
            <line x1="9" y1="8" x2="15" y2="8" />
            <line x1="17" y1="16" x2="23" y2="16" />
          </svg>
        ),
      },
      {
        path: "/attendance/balances",
        label: "Správa bilancí",
        permission: "attendance.balances",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <line x1="18" y1="20" x2="18" y2="10" />
            <line x1="12" y1="20" x2="12" y2="4" />
            <line x1="6" y1="20" x2="6" y2="14" />
          </svg>
        ),
      },
      {
        path: "/plan-work",
        label: "Plán prací",
        permission: ["attendance.manage", "attendance.record"],
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
            strokeLinecap="round"
            strokeLinejoin="round"
          >
            <rect x="3" y="4" width="18" height="18" rx="2" />
            <line x1="16" y1="2" x2="16" y2="6" />
            <line x1="8" y1="2" x2="8" y2="6" />
            <line x1="3" y1="10" x2="21" y2="10" />
          </svg>
        ),
      },
    ],
  },
  {
    label: "Kniha jízd",
    items: [
      {
        path: "/trips",
        label: "Záznam",
        permission: "trips.record",
        end: true,
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <circle cx="5" cy="18" r="3" />
            <circle cx="19" cy="18" r="3" />
            <path d="M5 18V12L8 5h8l3 7v6" />
            <path d="M10 18h4" />
          </svg>
        ),
      },
      {
        path: "/trips/history",
        label: "Moje historie",
        permission: "trips.history",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <polyline points="12 8 12 12 14 14" />
            <path d="M3.05 11a9 9 0 1 1 .5 4m-.5 5v-5h5" />
          </svg>
        ),
      },
      {
        path: "/trips/admin",
        label: "Správa",
        permission: "trips.manage",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <line x1="4" y1="21" x2="4" y2="14" />
            <line x1="4" y1="10" x2="4" y2="3" />
            <line x1="12" y1="21" x2="12" y2="12" />
            <line x1="12" y1="8" x2="12" y2="3" />
            <line x1="20" y1="21" x2="20" y2="16" />
            <line x1="20" y1="12" x2="20" y2="3" />
            <line x1="1" y1="14" x2="7" y2="14" />
            <line x1="9" y1="8" x2="15" y2="8" />
            <line x1="17" y1="16" x2="23" y2="16" />
          </svg>
        ),
      },
      {
        path: "/vehicles",
        label: "Vozidla",
        permission: "vehicles.manage",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <rect x="1" y="3" width="15" height="13" rx="2" />
            <path d="M16 8h4l3 3v5h-7V8z" />
            <circle cx="5.5" cy="18.5" r="2.5" />
            <circle cx="18.5" cy="18.5" r="2.5" />
          </svg>
        ),
      },
    ],
  },
  {
    label: "Administrativa",
    items: [
      {
        path: "/offers",
        label: "Nabídky",
        permission: "offers.view",
        matchPrefix: "/offers",
        matchExclude: ["/offers/customers", "/offers/templates"],
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z" />
            <polyline points="14 2 14 8 20 8" />
          </svg>
        ),
      },
      {
        path: "/orders",
        label: "Objednávky",
        permission: "orders.view",
        matchPrefix: "/orders",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <path d="M6 2L3 6v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2V6l-3-4z" />
            <line x1="3" y1="6" x2="21" y2="6" />
            <path d="M16 10a4 4 0 0 1-8 0" />
          </svg>
        ),
      },
      {
        path: "/invoices",
        label: "Faktury",
        permission: "invoices.view",
        matchPrefix: "/invoices",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <line x1="12" y1="1" x2="12" y2="23" />
            <path d="M17 5H9.5a3.5 3.5 0 0 0 0 7h5a3.5 3.5 0 0 1 0 7H6" />
          </svg>
        ),
      },
      {
        path: "/projects",
        label: "Projekty",
        permission: "projects.view",
        matchPrefix: "/projects",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <rect x="2" y="3" width="20" height="14" rx="2" />
            <line x1="8" y1="21" x2="16" y2="21" />
            <line x1="12" y1="17" x2="12" y2="21" />
          </svg>
        ),
      },
      {
        path: "/offers/customers",
        label: "Zákazníci",
        permission: "customers.view",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2" />
            <circle cx="9" cy="7" r="4" />
            <path d="M23 21v-2a4 4 0 0 0-3-3.87" />
            <path d="M16 3.13a4 4 0 0 1 0 7.75" />
          </svg>
        ),
      },
    ],
  },
  {
    label: "Sklad",
    items: [
      {
        path: "/warehouse",
        label: "Přehled",
        permission: "warehouse.view",
        end: true,
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
            strokeLinecap="round"
            strokeLinejoin="round"
          >
            <path d="M21 16V8a2 2 0 0 0-1-1.73l-7-4a2 2 0 0 0-2 0l-7 4A2 2 0 0 0 3 8v8a2 2 0 0 0 1 1.73l7 4a2 2 0 0 0 2 0l7-4A2 2 0 0 0 21 16z" />
            <polyline points="3.27 6.96 12 12.01 20.73 6.96" />
            <line x1="12" y1="22.08" x2="12" y2="12" />
          </svg>
        ),
      },
      {
        path: "/warehouse/items",
        label: "Položky",
        permission: "warehouse.view",
        matchPrefix: "/warehouse/items",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <path d="M21 16V8a2 2 0 0 0-1-1.73l-7-4a2 2 0 0 0-2 0l-7 4A2 2 0 0 0 3 8v8a2 2 0 0 0 1 1.73l7 4a2 2 0 0 0 2 0l7-4A2 2 0 0 0 21 16z" />
            <polyline points="3.27 6.96 12 12.01 20.73 6.96" />
            <line x1="12" y1="22.08" x2="12" y2="12" />
          </svg>
        ),
      },
      {
        path: "/warehouse/receipts",
        label: "Příjmy",
        permission: "warehouse.operate",
        matchPrefix: "/warehouse/receipts",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <polyline points="17 11 12 6 7 11" />
            <line x1="12" y1="6" x2="12" y2="18" />
            <path d="M5 19h14" />
          </svg>
        ),
      },
      {
        path: "/warehouse/issues",
        label: "Výdeje",
        permission: "warehouse.operate",
        matchPrefix: "/warehouse/issues",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <polyline points="7 13 12 18 17 13" />
            <line x1="12" y1="18" x2="12" y2="6" />
            <path d="M5 5h14" />
          </svg>
        ),
      },
      {
        path: "/warehouse/reservations",
        label: "Rezervace",
        permission: "warehouse.operate",
        matchPrefix: "/warehouse/reservations",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <path d="M16 21v-2a4 4 0 0 0-4-4H6a4 4 0 0 0-4 4v2" />
            <circle cx="9" cy="7" r="4" />
            <line x1="19" y1="8" x2="19" y2="14" />
            <line x1="22" y1="11" x2="16" y2="11" />
          </svg>
        ),
      },
      {
        path: "/warehouse/inventory",
        label: "Inventura",
        permission: "warehouse.inventory",
        matchPrefix: "/warehouse/inventory",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <path d="M9 11l3 3L22 4" />
            <path d="M21 12v7a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11" />
          </svg>
        ),
      },
      {
        path: "/warehouse/reports",
        label: "Reporty",
        permission: "warehouse.view",
        end: true,
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <line x1="18" y1="20" x2="18" y2="10" />
            <line x1="12" y1="20" x2="12" y2="4" />
            <line x1="6" y1="20" x2="6" y2="14" />
          </svg>
        ),
      },
      {
        path: "/warehouse/categories",
        label: "Kategorie",
        permission: "warehouse.manage",
        matchPrefix: "/warehouse/categories",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <line x1="4" y1="21" x2="4" y2="14" />
            <line x1="4" y1="10" x2="4" y2="3" />
            <line x1="12" y1="21" x2="12" y2="12" />
            <line x1="12" y1="8" x2="12" y2="3" />
            <line x1="20" y1="21" x2="20" y2="16" />
            <line x1="20" y1="12" x2="20" y2="3" />
            <line x1="1" y1="14" x2="7" y2="14" />
            <line x1="9" y1="8" x2="15" y2="8" />
            <line x1="17" y1="16" x2="23" y2="16" />
          </svg>
        ),
      },
      {
        path: "/warehouse/locations",
        label: "Lokace",
        permission: "warehouse.manage",
        matchPrefix: "/warehouse/locations",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <rect x="3" y="3" width="7" height="7" rx="1" />
            <rect x="14" y="3" width="7" height="7" rx="1" />
            <rect x="3" y="14" width="7" height="7" rx="1" />
            <rect x="14" y="14" width="7" height="7" rx="1" />
          </svg>
        ),
      },
      {
        path: "/warehouse/suppliers",
        label: "Dodavatelé",
        permission: "warehouse.manage",
        matchPrefix: "/warehouse/suppliers",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2" />
            <circle cx="9" cy="7" r="4" />
            <path d="M23 21v-2a4 4 0 0 0-3-3.87" />
            <path d="M16 3.13a4 4 0 0 1 0 7.75" />
          </svg>
        ),
      },
    ],
  },
  {
    label: "Systém",
    items: [
      {
        path: "/users",
        label: "Uživatelé",
        permission: "users.view",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2" />
            <circle cx="9" cy="7" r="4" />
            <path d="M23 21v-2a4 4 0 0 0-3-3.87" />
            <path d="M16 3.13a4 4 0 0 1 0 7.75" />
          </svg>
        ),
      },
      {
        path: "/settings",
        label: "Nastavení",
        permission: [
          "settings.company",
          "settings.banking",
          "settings.roles",
          "settings.system",
          "settings.templates",
        ],
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <circle cx="12" cy="12" r="3" />
            <path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06A1.65 1.65 0 0 0 4.68 15a1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06A1.65 1.65 0 0 0 9 4.68a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06A1.65 1.65 0 0 0 19.4 9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z" />
          </svg>
        ),
      },
      {
        path: "/audit-log",
        label: "Audit log",
        permission: "settings.audit",
        icon: (
          <svg
            viewBox="0 0 24 24"
            fill="none"
            stroke="currentColor"
            strokeWidth="2"
          >
            <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z" />
            <polyline points="14 2 14 8 20 8" />
            <line x1="16" y1="13" x2="8" y2="13" />
            <line x1="16" y1="17" x2="8" y2="17" />
            <polyline points="10 9 9 9 8 9" />
          </svg>
        ),
      },
    ],
  },
];

/** Active-state matching (mirrors the original Sidebar logic, incl. matchAlso). */
export function isItemActive(item: MenuItem, pathname: string): boolean {
  if (item.matchPrefix) {
    let active = pathname.startsWith(item.matchPrefix);
    if (active && item.matchExclude) {
      active = !item.matchExclude.some((ex) => pathname.startsWith(ex));
    }
    if (!active && item.matchAlso) {
      active = item.matchAlso.some((p) => pathname.startsWith(p));
    }
    return active;
  }
  if (item.matchAlso && item.matchAlso.some((p) => pathname.startsWith(p))) {
    return true;
  }
  if (item.end) return pathname === item.path;
  return pathname.startsWith(item.path);
}

/** Permission check: true if no permission, or any listed permission is held. */
export function hasItemPermission(
  item: MenuItem,
  hasPermission: (p: string) => boolean,
): boolean {
  if (!item.permission) return true;
  if (Array.isArray(item.permission)) {
    return item.permission.some((p) => hasPermission(p));
  }
  return hasPermission(item.permission);
}