"use client";

import React, { useState } from "react";
import Link from "next/link";
import {
  Calendar,
  Search,
  RotateCcw,
  Plus,
  Eye,
  Edit2,
  Trash2,
  ChevronRight,
  FileSpreadsheet,
  FileText,
  Save,
  X,
  CheckCircle2,
  Info,
} from "lucide-react";
import { toast } from "sonner";

interface AcademicSessionItem {
  id: string;
  sessionName: string;
  academicYear: string;
  startDate: string;
  endDate: string;
  programs: string;
  status: "Active" | "Completed" | "Upcoming";
  description?: string;
}

const initialSessionsList: AcademicSessionItem[] = [
  {
    id: "sess-1",
    sessionName: "2026 - 2027",
    academicYear: "2026 - 2027",
    startDate: "01 Aug 2026",
    endDate: "31 Jul 2027",
    programs: "6 Programs",
    status: "Active",
    description: "Current main operational academic session for all NCHMCT programs.",
  },
  {
    id: "sess-2",
    sessionName: "2025 - 2026",
    academicYear: "2025 - 2026",
    startDate: "01 Aug 2025",
    endDate: "31 Jul 2026",
    programs: "6 Programs",
    status: "Completed",
    description: "Previous concluded academic session.",
  },
  {
    id: "sess-3",
    sessionName: "2024 - 2025",
    academicYear: "2024 - 2025",
    startDate: "01 Aug 2024",
    endDate: "31 Jul 2025",
    programs: "6 Programs",
    status: "Completed",
    description: "Archived academic session.",
  },
  {
    id: "sess-4",
    sessionName: "2023 - 2024",
    academicYear: "2023 - 2024",
    startDate: "01 Aug 2023",
    endDate: "31 Jul 2024",
    programs: "5 Programs",
    status: "Completed",
    description: "Concluded academic session.",
  },
  {
    id: "sess-5",
    sessionName: "2022 - 2023",
    academicYear: "2022 - 2023",
    startDate: "01 Aug 2022",
    endDate: "31 Jul 2023",
    programs: "5 Programs",
    status: "Completed",
    description: "Concluded academic session.",
  },
  {
    id: "sess-6",
    sessionName: "2027 - 2028",
    academicYear: "2027 - 2028",
    startDate: "01 Aug 2027",
    endDate: "31 Jul 2028",
    programs: "6 Programs",
    status: "Upcoming",
    description: "Upcoming planned term.",
  },
];

export default function AcademicSessionsPage() {
  const [sessions, setSessions] = useState<AcademicSessionItem[]>(initialSessionsList);
  const [search, setSearch] = useState("");
  const [selectedYear, setSelectedYear] = useState("All Years");
  const [selectedStatus, setSelectedStatus] = useState("All Status");
  const [selectedProgram, setSelectedProgram] = useState("All Programs");
  const [pageSize, setPageSize] = useState("10 per page");

  // Selection Checkboxes
  const [selectedIds, setSelectedIds] = useState<string[]>([]);

  // Modal State
  const [isModalOpen, setIsModalOpen] = useState(false);
  const [modalMode, setModalMode] = useState<"create" | "edit" | "view">("create");
  const [editingId, setEditingId] = useState<string | null>(null);
  const [viewingSession, setViewingSession] = useState<AcademicSessionItem | null>(null);

  // Form Fields
  const [formSessionName, setFormSessionName] = useState("");
  const [formAcademicYear, setFormAcademicYear] = useState("2026 - 2027");
  const [formStartDate, setFormStartDate] = useState("2026-08-01");
  const [formEndDate, setFormEndDate] = useState("2027-07-31");
  const [formPrograms, setFormPrograms] = useState("6 Programs");
  const [formDescription, setFormDescription] = useState("");
  const [formStatus, setFormStatus] = useState<"Active" | "Upcoming" | "Completed">("Active");

  // Filter Computation
  const filtered = sessions.filter((s) => {
    const matchesSearch =
      s.sessionName.toLowerCase().includes(search.toLowerCase()) ||
      s.academicYear.toLowerCase().includes(search.toLowerCase());
    const matchesYear = selectedYear === "All Years" || s.academicYear === selectedYear;
    const matchesStatus = selectedStatus === "All Status" || s.status === selectedStatus;
    return matchesSearch && matchesYear && matchesStatus;
  });

  const handleResetFilters = () => {
    setSearch("");
    setSelectedYear("All Years");
    setSelectedStatus("All Status");
    setSelectedProgram("All Programs");
  };

  const handleToggleSelectAll = () => {
    if (selectedIds.length === filtered.length) {
      setSelectedIds([]);
    } else {
      setSelectedIds(filtered.map((s) => s.id));
    }
  };

  const handleToggleSelectRow = (id: string) => {
    setSelectedIds((prev) =>
      prev.includes(id) ? prev.filter((item) => item !== id) : [...prev, id]
    );
  };

  const handleDelete = (id: string) => {
    const target = sessions.find((s) => s.id === id);
    if (target?.status === "Active") {
      toast.error("Cannot delete active academic session without reassigning.");
      return;
    }
    setSessions((prev) => prev.filter((s) => s.id !== id));
    toast.success("Academic session deleted successfully.");
  };

  const openCreateModal = () => {
    setModalMode("create");
    setEditingId(null);
    setViewingSession(null);
    setFormSessionName("");
    setFormAcademicYear("2026 - 2027");
    setFormStartDate("2026-08-01");
    setFormEndDate("2027-07-31");
    setFormPrograms("6 Programs");
    setFormDescription("");
    setFormStatus("Active");
    setIsModalOpen(true);
  };

  const openEditModal = (sess: AcademicSessionItem) => {
    setModalMode("edit");
    setEditingId(sess.id);
    setViewingSession(null);
    setFormSessionName(sess.sessionName);
    setFormAcademicYear(sess.academicYear);
    setFormStartDate(
      sess.startDate.includes("2026") ? "2026-08-01" : "2025-08-01"
    );
    setFormEndDate(
      sess.endDate.includes("2027") ? "2027-07-31" : "2026-07-31"
    );
    setFormPrograms(sess.programs);
    setFormDescription(sess.description || "");
    setFormStatus(sess.status);
    setIsModalOpen(true);
  };

  const openViewModal = (sess: AcademicSessionItem) => {
    setViewingSession(sess);
    setModalMode("view");
    setIsModalOpen(true);
  };

  const handleSaveForm = (e: React.FormEvent) => {
    e.preventDefault();

    if (!formSessionName.trim()) {
      toast.error("Please enter a session name");
      return;
    }

    if (editingId) {
      // Update existing
      setSessions((prev) =>
        prev.map((s) => {
          if (s.id === editingId) {
            return {
              ...s,
              sessionName: formSessionName,
              academicYear: formAcademicYear,
              startDate: formStartDate,
              endDate: formEndDate,
              programs: formPrograms,
              description: formDescription,
              status: formStatus,
            };
          }
          if (formStatus === "Active" && s.status === "Active" && s.id !== editingId) {
            return { ...s, status: "Completed" };
          }
          return s;
        })
      );
      toast.success("Academic session updated successfully.");
    } else {
      // Add new
      const newSess: AcademicSessionItem = {
        id: `sess-${Date.now()}`,
        sessionName: formSessionName,
        academicYear: formAcademicYear,
        startDate: formStartDate,
        endDate: formEndDate,
        programs: formPrograms,
        status: formStatus,
        description: formDescription,
      };

      setSessions((prev) => [
        ...(formStatus === "Active"
          ? prev.map((s) => (s.status === "Active" ? { ...s, status: "Completed" as const } : s))
          : prev),
        newSess,
      ]);
      toast.success("New academic session created.");
    }

    setIsModalOpen(false);
  };

  return (
    <div className="space-y-5 font-sans">
      {/* ============================================================ */}
      {/* 1. TOP HEADER & BREADCRUMB                                   */}
      {/* ============================================================ */}
      <div className="flex flex-col lg:flex-row lg:items-center justify-between gap-4">
        <div>
          {/* Breadcrumb */}
          <nav className="flex items-center gap-1.5 text-[13px] text-[#64748B] mb-1 font-medium font-sans">
            <Link href="/admin/dashboard" className="hover:text-[#1769E8] hover:underline">
              Home
            </Link>
            <ChevronRight className="w-3.5 h-3.5 text-[#94A3B8]" />
            <span>Academic Management</span>
            <ChevronRight className="w-3.5 h-3.5 text-[#94A3B8]" />
            <span className="text-[#071A4D] font-semibold">Academic Sessions</span>
          </nav>

          <h1 className="text-3xl font-bold font-heading text-[#071A4D] tracking-tight">
            Academic Sessions
          </h1>
          <p className="text-[15px] text-[#64748B] mt-1 font-normal font-sans">
            Create and manage academic sessions for all programs and academic years.
          </p>
        </div>

        {/* Action Buttons Top Right */}
        <div className="flex items-center gap-2.5 flex-wrap font-sans">
          <button
            onClick={() => toast.success("Exporting Academic Sessions to CSV...")}
            className="inline-flex items-center gap-1.5 px-3.5 py-2 text-xs font-semibold text-[#071A4D] bg-white border border-[#E5EAF0] rounded-lg hover:bg-slate-50 transition-colors shadow-2xs"
          >
            <FileSpreadsheet className="w-4 h-4 text-emerald-600" />
            <span>Export</span>
          </button>

          <button
            onClick={() => toast.success("Generating sessions audit report...")}
            className="inline-flex items-center gap-1.5 px-3.5 py-2 text-xs font-semibold text-[#071A4D] bg-white border border-[#E5EAF0] rounded-lg hover:bg-slate-50 transition-colors shadow-2xs"
          >
            <FileText className="w-4 h-4 text-[#9333EA]" />
            <span>Generate Report</span>
          </button>

          <button
            onClick={openCreateModal}
            className="inline-flex items-center gap-1.5 px-4 py-2 text-xs font-semibold text-white bg-[#1769E8] hover:bg-[#1257C7] rounded-lg shadow-sm transition-colors cursor-pointer"
          >
            <Plus className="w-4 h-4" />
            <span>+ Add Academic Session</span>
          </button>
        </div>
      </div>

      {/* ============================================================ */}
      {/* 2. FILTER AND SEARCH BAR                                     */}
      {/* ============================================================ */}
      <div className="p-4 rounded-xl bg-white border border-[#E5EAF0] shadow-xs flex flex-col lg:flex-row items-stretch lg:items-center justify-between gap-3 font-sans">
        <div className="flex flex-wrap items-center gap-2.5 flex-1">
          {/* Academic Year Dropdown */}
          <div className="flex flex-col">
            <label className="text-[10px] font-bold text-[#64748B] mb-0.5 uppercase tracking-wider">
              Academic Year
            </label>
            <select
              value={selectedYear}
              onChange={(e) => setSelectedYear(e.target.value)}
              className="h-9 px-3 rounded-lg border border-[#D8E0EA] bg-white text-xs font-medium text-[#334155] focus:outline-none focus:border-[#1769E8] focus:ring-1 focus:ring-[#1769E8]/20 cursor-pointer"
            >
              <option>All Years</option>
              <option>2026 - 2027</option>
              <option>2025 - 2026</option>
              <option>2024 - 2025</option>
              <option>2023 - 2024</option>
              <option>2022 - 2023</option>
              <option>2027 - 2028</option>
            </select>
          </div>

          {/* Session Status Dropdown */}
          <div className="flex flex-col">
            <label className="text-[10px] font-bold text-[#64748B] mb-0.5 uppercase tracking-wider">
              Session Status
            </label>
            <select
              value={selectedStatus}
              onChange={(e) => setSelectedStatus(e.target.value)}
              className="h-9 px-3 rounded-lg border border-[#D8E0EA] bg-white text-xs font-medium text-[#334155] focus:outline-none focus:border-[#1769E8] focus:ring-1 focus:ring-[#1769E8]/20 cursor-pointer"
            >
              <option>All Status</option>
              <option>Active</option>
              <option>Completed</option>
              <option>Upcoming</option>
            </select>
          </div>

          {/* Program Dropdown */}
          <div className="flex flex-col">
            <label className="text-[10px] font-bold text-[#64748B] mb-0.5 uppercase tracking-wider">
              Program
            </label>
            <select
              value={selectedProgram}
              onChange={(e) => setSelectedProgram(e.target.value)}
              className="h-9 px-3 rounded-lg border border-[#D8E0EA] bg-white text-xs font-medium text-[#334155] focus:outline-none focus:border-[#1769E8] focus:ring-1 focus:ring-[#1769E8]/20 cursor-pointer"
            >
              <option>All Programs</option>
              <option>B.Sc. in Hospitality</option>
              <option>M.Sc. in Hospitality</option>
              <option>Diploma in Food Production</option>
            </select>
          </div>

          {/* Search Input Box */}
          <div className="flex flex-col flex-1 min-w-[220px]">
            <label className="text-[10px] font-bold text-[#64748B] mb-0.5 uppercase tracking-wider opacity-0">
              Search
            </label>
            <div className="relative">
              <Search className="w-4 h-4 text-[#94A3B8] absolute left-3 top-1/2 -translate-y-1/2" />
              <input
                type="text"
                value={search}
                onChange={(e) => setSearch(e.target.value)}
                placeholder="Search by session name or academic year..."
                className="h-9 w-full rounded-lg border border-[#D8E0EA] bg-white pl-9 pr-3 text-xs text-[#334155] placeholder:text-[#94A3B8] focus:outline-none focus:border-[#1769E8] focus:ring-1 focus:ring-[#1769E8]/20"
              />
            </div>
          </div>
        </div>

        {/* Search & Reset Buttons */}
        <div className="flex items-end gap-2 shrink-0 pt-3 lg:pt-0 font-sans">
          <button
            onClick={() => {}}
            className="h-9 px-4 rounded-lg bg-[#1769E8] hover:bg-[#1257C7] text-white text-xs font-semibold flex items-center gap-1.5 shadow-xs transition-colors cursor-pointer"
          >
            <Search className="w-3.5 h-3.5" />
            <span>Search</span>
          </button>

          <button
            onClick={handleResetFilters}
            className="h-9 px-4 rounded-lg border border-[#E5EAF0] hover:bg-slate-50 text-[#334155] text-xs font-semibold flex items-center gap-1.5 transition-colors shadow-2xs cursor-pointer"
          >
            <RotateCcw className="w-3.5 h-3.5 text-[#64748B]" />
            <span>Reset</span>
          </button>
        </div>
      </div>

      {/* ============================================================ */}
      {/* 3. FULL WIDTH SESSIONS TABLE - ALL DETAILS IN A LINE          */}
      {/* ============================================================ */}
      <div className="rounded-xl bg-white border border-[#E5EAF0] shadow-xs overflow-hidden">
        {/* Table Header Controls */}
        <div className="p-4 border-b border-[#E5EAF0] flex items-center justify-between">
          <div className="flex items-center gap-2">
            <Calendar className="w-4 h-4 text-[#1769E8]" />
            <h2 className="text-sm font-bold font-heading text-[#071A4D]">
              Academic Sessions ({filtered.length})
            </h2>
          </div>

          {/* Page size dropdown */}
          <select
            value={pageSize}
            onChange={(e) => setPageSize(e.target.value)}
            className="h-8 px-2.5 rounded-lg border border-[#D8E0EA] bg-white text-xs text-[#64748B] focus:outline-none focus:border-[#1769E8] cursor-pointer"
          >
            <option>10 per page</option>
            <option>25 per page</option>
            <option>50 per page</option>
          </select>
        </div>

        {/* Table Data */}
        <div className="overflow-x-auto">
          <table className="w-full text-left text-xs border-collapse">
            <thead>
              <tr className="bg-[#F8FAFC] border-b border-[#E5EAF0] text-[#64748B] uppercase tracking-wider font-bold text-[11px] whitespace-nowrap">
                <th className="py-3 px-3.5 text-center w-10">
                  <input
                    type="checkbox"
                    checked={selectedIds.length === filtered.length && filtered.length > 0}
                    onChange={handleToggleSelectAll}
                    className="rounded border-[#D8E0EA] text-[#1769E8] focus:ring-[#1769E8]"
                  />
                </th>
                <th className="py-3 px-2 text-center w-10">#</th>
                <th className="py-3 px-4">Session Name</th>
                <th className="py-3 px-4">Academic Year</th>
                <th className="py-3 px-4">Start Date</th>
                <th className="py-3 px-4">End Date</th>
                <th className="py-3 px-4">Programs</th>
                <th className="py-3 px-4">Description</th>
                <th className="py-3 px-4 text-center">Status</th>
                <th className="py-3 px-4 text-center">Actions</th>
              </tr>
            </thead>
            <tbody className="divide-y divide-[#E5EAF0] text-[#334155]">
              {filtered.length === 0 ? (
                <tr>
                  <td colSpan={10} className="py-12 text-center text-slate-400">
                    No academic sessions match the filter criteria.
                  </td>
                </tr>
              ) : (
                filtered.map((sess, idx) => {
                  const isSelected = selectedIds.includes(sess.id);
                  return (
                    <tr
                      key={sess.id}
                      className={`hover:bg-[#F8FAFC] transition-colors whitespace-nowrap ${
                        isSelected ? "bg-blue-50/40" : ""
                      }`}
                    >
                      <td className="py-3.5 px-3.5 text-center">
                        <input
                          type="checkbox"
                          checked={isSelected}
                          onChange={() => handleToggleSelectRow(sess.id)}
                          className="rounded border-[#D8E0EA] text-[#1769E8] focus:ring-[#1769E8]"
                        />
                      </td>
                      <td className="py-3.5 px-2 text-center text-slate-400 font-medium">
                        {idx + 1}
                      </td>
                      <td className="py-3.5 px-4 font-semibold text-[#071A4D]">
                        {sess.sessionName}
                      </td>
                      <td className="py-3.5 px-4 text-[#334155] font-medium">
                        {sess.academicYear}
                      </td>
                      <td className="py-3.5 px-4 text-[#64748B]">
                        {sess.startDate}
                      </td>
                      <td className="py-3.5 px-4 text-[#64748B]">
                        {sess.endDate}
                      </td>
                      <td className="py-3.5 px-4 text-[#334155]">
                        <span className="inline-flex items-center px-2 py-0.5 rounded-md text-[11px] font-medium bg-slate-100 text-slate-700">
                          {sess.programs}
                        </span>
                      </td>
                      <td className="py-3.5 px-4 text-[#64748B] max-w-xs truncate">
                        {sess.description || "—"}
                      </td>
                      <td className="py-3.5 px-4 text-center">
                        {sess.status === "Active" ? (
                          <span className="inline-flex items-center gap-1 px-2.5 py-0.5 rounded-full text-[11px] font-semibold bg-[#DCFCE7] text-[#15803D]">
                            <span className="w-1.5 h-1.5 rounded-full bg-[#15803D]"></span>
                            Active
                          </span>
                        ) : sess.status === "Upcoming" ? (
                          <span className="inline-flex items-center gap-1 px-2.5 py-0.5 rounded-full text-[11px] font-semibold bg-[#FEF3C7] text-[#D97706]">
                            <span className="w-1.5 h-1.5 rounded-full bg-[#D97706]"></span>
                            Upcoming
                          </span>
                        ) : (
                          <span className="inline-flex items-center gap-1 px-2.5 py-0.5 rounded-full text-[11px] font-semibold bg-[#E2E8F0] text-[#475569]">
                            <span className="w-1.5 h-1.5 rounded-full bg-[#475569]"></span>
                            Completed
                          </span>
                        )}
                      </td>
                      <td className="py-3.5 px-4 text-center">
                        <div className="flex items-center justify-center gap-1.5">
                          {/* View Action */}
                          <button
                            onClick={() => openViewModal(sess)}
                            className="p-1.5 rounded-lg text-[#1769E8] hover:bg-blue-50 transition-colors"
                            title="View details"
                          >
                            <Eye className="w-4 h-4" />
                          </button>

                          {/* Edit Action */}
                          <button
                            onClick={() => openEditModal(sess)}
                            className="p-1.5 rounded-lg text-[#1769E8] hover:bg-blue-50 transition-colors"
                            title="Edit session"
                          >
                            <Edit2 className="w-4 h-4" />
                          </button>

                          {/* Delete Action */}
                          <button
                            onClick={() => handleDelete(sess.id)}
                            className="p-1.5 rounded-lg text-[#DC2626] hover:bg-red-50 transition-colors"
                            title="Delete session"
                          >
                            <Trash2 className="w-4 h-4" />
                          </button>
                        </div>
                      </td>
                    </tr>
                  );
                })
              )}
            </tbody>
          </table>
        </div>

        {/* Pagination Footer */}
        <div className="p-3.5 px-4 border-t border-[#E5EAF0] flex items-center justify-between text-xs text-[#64748B]">
          <div>
            Showing 1 to {filtered.length} of {sessions.length} sessions
          </div>
          <div className="flex items-center gap-1">
            <button
              disabled
              className="px-2.5 py-1 rounded border border-[#E5EAF0] text-slate-300 cursor-not-allowed"
            >
              &lt;
            </button>
            <button className="px-3 py-1 rounded bg-[#1769E8] text-white font-bold">
              1
            </button>
            <button
              disabled
              className="px-2.5 py-1 rounded border border-[#E5EAF0] text-slate-300 cursor-not-allowed"
            >
              &gt;
            </button>
          </div>
        </div>
      </div>

      {/* ============================================================ */}
      {/* 4. POPUP MODAL: CREATE / EDIT / VIEW ACADEMIC SESSION        */}
      {/* ============================================================ */}
      {isModalOpen && (
        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/50 backdrop-blur-xs p-4 animate-in fade-in duration-150">
          <div className="w-full max-w-lg bg-white rounded-2xl shadow-2xl border border-[#E5EAF0] overflow-hidden flex flex-col max-h-[90vh]">
            {/* Modal Header */}
            <div className="px-6 py-4 border-b border-[#E5EAF0] flex items-center justify-between bg-slate-50/60">
              <div className="flex items-center gap-2.5">
                <div className="w-9 h-9 rounded-xl bg-blue-50 text-[#1769E8] flex items-center justify-center">
                  <Calendar className="w-5 h-5" />
                </div>
                <div>
                  <h3 className="font-heading font-bold text-base text-[#071A4D]">
                    {modalMode === "create" && "Add New Academic Session"}
                    {modalMode === "edit" && "Edit Academic Session"}
                    {modalMode === "view" && "Academic Session Details"}
                  </h3>
                  <p className="text-[12px] text-[#64748B]">
                    {modalMode === "create" && "Enter the details to create a new session."}
                    {modalMode === "edit" && "Update session parameters and date duration."}
                    {modalMode === "view" && "Complete overview of the session."}
                  </p>
                </div>
              </div>
              <button
                onClick={() => setIsModalOpen(false)}
                className="w-8 h-8 rounded-lg text-slate-400 hover:text-slate-700 hover:bg-slate-100 flex items-center justify-center transition-colors cursor-pointer"
              >
                <X className="w-4 h-4" />
              </button>
            </div>

            {/* Modal Body */}
            <div className="p-6 overflow-y-auto space-y-4">
              {modalMode === "view" && viewingSession ? (
                <div className="space-y-4 text-xs">
                  <div className="grid grid-cols-2 gap-4 p-4 rounded-xl bg-slate-50 border border-slate-100">
                    <div>
                      <span className="text-[10px] uppercase font-bold text-[#64748B] block">Session Name</span>
                      <span className="text-sm font-bold text-[#071A4D]">{viewingSession.sessionName}</span>
                    </div>
                    <div>
                      <span className="text-[10px] uppercase font-bold text-[#64748B] block">Academic Year</span>
                      <span className="text-sm font-semibold text-[#071A4D]">{viewingSession.academicYear}</span>
                    </div>
                    <div>
                      <span className="text-[10px] uppercase font-bold text-[#64748B] block">Start Date</span>
                      <span className="text-xs font-medium text-[#334155]">{viewingSession.startDate}</span>
                    </div>
                    <div>
                      <span className="text-[10px] uppercase font-bold text-[#64748B] block">End Date</span>
                      <span className="text-xs font-medium text-[#334155]">{viewingSession.endDate}</span>
                    </div>
                    <div>
                      <span className="text-[10px] uppercase font-bold text-[#64748B] block">Applicable Programs</span>
                      <span className="text-xs font-medium text-[#334155]">{viewingSession.programs}</span>
                    </div>
                    <div>
                      <span className="text-[10px] uppercase font-bold text-[#64748B] block">Status</span>
                      <span className={`inline-block mt-0.5 px-2 py-0.5 rounded-full font-semibold text-[10px] ${
                        viewingSession.status === "Active"
                          ? "bg-emerald-100 text-emerald-700"
                          : viewingSession.status === "Upcoming"
                          ? "bg-amber-100 text-amber-700"
                          : "bg-slate-200 text-slate-700"
                      }`}>
                        {viewingSession.status}
                      </span>
                    </div>
                  </div>

                  <div>
                    <span className="text-[10px] uppercase font-bold text-[#64748B] block mb-1">Description</span>
                    <p className="text-xs text-[#334155] leading-relaxed p-3 rounded-lg border border-slate-100 bg-white">
                      {viewingSession.description || "No description provided."}
                    </p>
                  </div>
                </div>
              ) : (
                <form id="session-form" onSubmit={handleSaveForm} className="space-y-4">
                  {/* Session Name */}
                  <div>
                    <label className="block text-xs font-bold text-[#334155] mb-1">
                      Session Name <span className="text-[#DC2626]">*</span>
                    </label>
                    <input
                      type="text"
                      required
                      value={formSessionName}
                      onChange={(e) => setFormSessionName(e.target.value)}
                      placeholder="e.g. 2026 - 2027"
                      className="h-10 w-full px-3 text-xs rounded-lg border border-[#D8E0EA] bg-white text-[#334155] placeholder:text-[#94A3B8] focus:outline-none focus:border-[#1769E8] focus:ring-1 focus:ring-[#1769E8]/20"
                    />
                  </div>

                  {/* Academic Year */}
                  <div>
                    <label className="block text-xs font-bold text-[#334155] mb-1">
                      Academic Year <span className="text-[#DC2626]">*</span>
                    </label>
                    <select
                      value={formAcademicYear}
                      onChange={(e) => setFormAcademicYear(e.target.value)}
                      className="h-10 w-full px-3 text-xs rounded-lg border border-[#D8E0EA] bg-white text-[#334155] focus:outline-none focus:border-[#1769E8] focus:ring-1 focus:ring-[#1769E8]/20 cursor-pointer"
                    >
                      <option>2026 - 2027</option>
                      <option>2025 - 2026</option>
                      <option>2024 - 2025</option>
                      <option>2027 - 2028</option>
                    </select>
                  </div>

                  {/* Start Date & End Date */}
                  <div className="grid grid-cols-2 gap-3">
                    <div>
                      <label className="block text-xs font-bold text-[#334155] mb-1">
                        Start Date <span className="text-[#DC2626]">*</span>
                      </label>
                      <input
                        type="date"
                        required
                        value={formStartDate}
                        onChange={(e) => setFormStartDate(e.target.value)}
                        className="h-10 w-full px-3 text-xs rounded-lg border border-[#D8E0EA] bg-white text-[#334155] focus:outline-none focus:border-[#1769E8] focus:ring-1 focus:ring-[#1769E8]/20"
                      />
                    </div>
                    <div>
                      <label className="block text-xs font-bold text-[#334155] mb-1">
                        End Date <span className="text-[#DC2626]">*</span>
                      </label>
                      <input
                        type="date"
                        required
                        value={formEndDate}
                        onChange={(e) => setFormEndDate(e.target.value)}
                        className="h-10 w-full px-3 text-xs rounded-lg border border-[#D8E0EA] bg-white text-[#334155] focus:outline-none focus:border-[#1769E8] focus:ring-1 focus:ring-[#1769E8]/20"
                      />
                    </div>
                  </div>

                  {/* Programs */}
                  <div>
                    <label className="block text-xs font-bold text-[#334155] mb-1">
                      Programs Count / Label
                    </label>
                    <input
                      type="text"
                      value={formPrograms}
                      onChange={(e) => setFormPrograms(e.target.value)}
                      placeholder="e.g. 6 Programs"
                      className="h-10 w-full px-3 text-xs rounded-lg border border-[#D8E0EA] bg-white text-[#334155] placeholder:text-[#94A3B8] focus:outline-none focus:border-[#1769E8] focus:ring-1 focus:ring-[#1769E8]/20"
                    />
                  </div>

                  {/* Description */}
                  <div>
                    <label className="block text-xs font-bold text-[#334155] mb-1">
                      Description
                    </label>
                    <textarea
                      rows={2}
                      value={formDescription}
                      onChange={(e) => setFormDescription(e.target.value)}
                      placeholder="Enter session details or notes..."
                      maxLength={500}
                      className="w-full p-3 text-xs rounded-lg border border-[#D8E0EA] bg-white text-[#334155] placeholder:text-[#94A3B8] focus:outline-none focus:border-[#1769E8] focus:ring-1 focus:ring-[#1769E8]/20 resize-none"
                    />
                    <div className="text-[10px] text-[#64748B] text-right mt-0.5">
                      {formDescription.length}/500
                    </div>
                  </div>

                  {/* Status Radio Buttons */}
                  <div>
                    <label className="block text-xs font-bold text-[#334155] mb-2">
                      Status
                    </label>
                    <div className="flex items-center gap-5 text-xs">
                      <label className="flex items-center gap-1.5 cursor-pointer text-[#334155]">
                        <input
                          type="radio"
                          name="modalStatus"
                          checked={formStatus === "Active"}
                          onChange={() => setFormStatus("Active")}
                          className="text-[#1769E8] focus:ring-[#1769E8]"
                        />
                        <span className="font-medium">Active</span>
                      </label>

                      <label className="flex items-center gap-1.5 cursor-pointer text-[#334155]">
                        <input
                          type="radio"
                          name="modalStatus"
                          checked={formStatus === "Upcoming"}
                          onChange={() => setFormStatus("Upcoming")}
                          className="text-[#1769E8] focus:ring-[#1769E8]"
                        />
                        <span className="font-medium">Upcoming</span>
                      </label>

                      <label className="flex items-center gap-1.5 cursor-pointer text-[#334155]">
                        <input
                          type="radio"
                          name="modalStatus"
                          checked={formStatus === "Completed"}
                          onChange={() => setFormStatus("Completed")}
                          className="text-[#1769E8] focus:ring-[#1769E8]"
                        />
                        <span className="font-medium">Completed</span>
                      </label>
                    </div>
                  </div>
                </form>
              )}
            </div>

            {/* Modal Footer */}
            <div className="px-6 py-3.5 border-t border-[#E5EAF0] flex items-center justify-end gap-2.5 bg-slate-50/50">
              <button
                type="button"
                onClick={() => setIsModalOpen(false)}
                className="px-4 py-2 text-xs font-semibold text-[#64748B] bg-white hover:bg-slate-100 border border-[#E5EAF0] rounded-lg transition-colors cursor-pointer"
              >
                {modalMode === "view" ? "Close" : "Cancel"}
              </button>

              {modalMode !== "view" && (
                <button
                  type="submit"
                  form="session-form"
                  className="px-5 py-2 text-xs font-bold text-white bg-[#1769E8] hover:bg-[#1257C7] rounded-lg transition-colors flex items-center gap-1.5 shadow-xs cursor-pointer"
                >
                  <Save className="w-3.5 h-3.5" />
                  <span>{modalMode === "create" ? "Create Session" : "Save Changes"}</span>
                </button>
              )}
            </div>
          </div>
        </div>
      )}
    </div>
  );
}