import {
  BarChart,
  BookOpen,
  Calendar,
  LayoutDashboard,
  Settings,
  Users,
  FileText,
  MessageSquare,
  Shield,
  CreditCard,
  FileQuestion,
  ClipboardList,
  Library,
  PenTool
} from "lucide-react"
import type { LucideIcon } from "lucide-react"

export type NavItem = {
  title: string
  icon: LucideIcon
  href: string
  items?: { title: string; href: string }[]
}

export type Role = "admin" | "teacher" | "student" | "parent"

export const NAV_CONFIG: Record<Role, NavItem[]> = {
  admin: [
    {
      title: "Dashboard",
      icon: LayoutDashboard,
      href: "/admin/dashboard",
    },
    {
      title: "School Management",
      icon: Shield,
      href: "/admin/school",
      items: [
        { title: "Departments", href: "/admin/school/departments" },
        { title: "Classrooms", href: "/admin/school/classrooms" },
        { title: "Academic Year", href: "/admin/school/academic-year" },
      ]
    },
    {
      title: "Users",
      icon: Users,
      href: "/admin/users",
      items: [
        { title: "Teachers", href: "/admin/users/teachers" },
        { title: "Students", href: "/admin/users/students" },
        { title: "Parents", href: "/admin/users/parents" },
        { title: "Staff", href: "/admin/users/staff" },
      ]
    },
    {
      title: "Courses",
      icon: BookOpen,
      href: "/courses",
      items: [
        { title: "Course Catalog", href: "/courses/catalog" },
        { title: "Schedules", href: "/courses/schedules" },
      ]
    },
    {
      title: "Reports",
      icon: BarChart,
      href: "/reports",
    },
    {
      title: "Finance",
      icon: CreditCard,
      href: "/finance",
    },
    {
      title: "Settings",
      icon: Settings,
      href: "/settings",
    },
  ],
  teacher: [
    {
      title: "Dashboard",
      icon: LayoutDashboard,
      href: "/dashboard",
    },
    {
      title: "Textbooks",
      icon: Library,
      href: "/teacher/textbooks",
    },
    {
      title: "Exams",
      icon: FileQuestion,
      href: "/teacher/exams",
      items: [
        { title: "All Exams", href: "/teacher/exams/all" },
        { title: "Create Exam", href: "/teacher/exams/create" },
      ]
    },
    {
      title: "Homework",
      icon: PenTool,
      href: "/teacher/homework",
      items: [
        { title: "Assignments", href: "/teacher/homework/assignments" },
        { title: "Submissions", href: "/teacher/homework/submissions" },
      ]
    },
    {
      title: "Question Bank",
      icon: ClipboardList,
      href: "/teacher/questions",
    },
    {
      title: "Class Management",
      icon: Users,
      href: "/teacher/classes",
      items: [
        { title: "My Classes", href: "/teacher/classes/my" },
        { title: "Students", href: "/teacher/classes/students" },
        { title: "Schedule", href: "/teacher/classes/schedule" },
      ]
    },
  ],
  student: [
    {
      title: "Dashboard",
      icon: LayoutDashboard,
      href: "/dashboard",
    },
    {
      title: "My Learning",
      icon: BookOpen,
      href: "/student/learning",
      items: [
        { title: "Courses", href: "/student/learning/courses" },
        { title: "Assignments", href: "/student/learning/assignments" },
        { title: "Grades", href: "/student/learning/grades" },
      ]
    },
    {
      title: "Schedule",
      icon: Calendar,
      href: "/student/schedule",
    },
    {
      title: "Resources",
      icon: FileText,
      href: "/student/resources",
    },
  ],
  parent: [
    {
      title: "Dashboard",
      icon: LayoutDashboard,
      href: "/parent/dashboard",
    },
    {
      title: "Children",
      icon: Users,
      href: "/parent/children",
    },
    {
      title: "Tuition",
      icon: CreditCard,
      href: "/parent/tuition",
    },
    {
      title: "Messages",
      icon: MessageSquare,
      href: "/messages",
    },
  ]
}