import type { Role } from '@/types';

export type Permission =
  | 'dashboard'
  | 'products.read'
  | 'products.write'
  | 'orders.read'
  | 'orders.write'
  | 'inventory.read'
  | 'inventory.write'
  | 'customers.read'
  | 'customers.write'
  | 'categories.read'
  | 'categories.write'
  | 'categories.delete'
  | 'brands.read'
  | 'brands.write'
  | 'promotions.read'
  | 'promotions.write'
  | 'reviews.read'
  | 'reviews.moderate'
  | 'cms.read'
  | 'cms.write'
  | 'admin-users.read'
  | 'admin-users.write'
  | 'audit.read'
  | 'reporting.read';

export function can(role: Role, permission: Permission): boolean {
  if (role === 'admin') return true;
  return false;
}

export interface NavItem {
  href: string;
  label: string;
  icon: string;
  permission: Permission;
  badge?: number;
  parentHref?: string;
}

export const NAV_ITEMS: NavItem[] = [
  { href: '/', label: 'Dashboard', icon: '📊', permission: 'dashboard' },
  { href: '/reporting', label: 'Reporting', icon: '📈', permission: 'reporting.read' },
  { href: '/reporting/dashboard', label: 'Dashboard', icon: '📊', permission: 'reporting.read', parentHref: '/reporting' },
  { href: '/reporting/sales', label: 'Ventas', icon: '🧾', permission: 'reporting.read', parentHref: '/reporting' },
  { href: '/reporting/products', label: 'Productos', icon: '📦', permission: 'reporting.read', parentHref: '/reporting' },
  { href: '/products', label: 'Productos', icon: '📦', permission: 'products.read' },
  { href: '/orders', label: 'Pedidos', icon: '🧾', permission: 'orders.read' },
  { href: '/payments', label: 'Pagos', icon: '💳', permission: 'orders.read' },
  { href: '/inventory', label: 'Inventario', icon: '📊', permission: 'inventory.read' },
  { href: '/customers', label: 'Clientes', icon: '👥', permission: 'customers.read' },
  { href: '/categories', label: 'Categorías', icon: '🏷️', permission: 'categories.read' },
  { href: '/brands', label: 'Marcas', icon: '🏷️', permission: 'brands.read' },
  { href: '/promotions', label: 'Promociones', icon: '🏷️', permission: 'promotions.read' },
  { href: '/shipping', label: 'Envíos', icon: '📦', permission: 'orders.read' },
  { href: '/reviews', label: 'Reseñas', icon: '⭐', permission: 'reviews.read' },
  { href: '/cms', label: 'CMS', icon: '📄', permission: 'cms.read' },
  { href: '/users', label: 'Usuarios', icon: '🔐', permission: 'admin-users.read' },
  { href: '/tax-rates', label: 'IVA', icon: '📊', permission: 'orders.read' },
  { href: '/audit', label: 'Auditoría', icon: '📋', permission: 'audit.read' },
  { href: '/logs', label: 'Logs', icon: '🖥️', permission: 'audit.read' },
  { href: '/settings', label: 'Ajustes', icon: '⚙️', permission: 'dashboard' },
];

export function topNavItems(role: Role): NavItem[] {
  return NAV_ITEMS.filter((item) => !item.parentHref && can(role, item.permission));
}

export function subNavItems(parentHref: string, role: Role): NavItem[] {
  return NAV_ITEMS.filter((item) => item.parentHref === parentHref && can(role, item.permission));
}