"use client";

import React, { useState } from "react";
import Link from "next/link";
import {
  Search,
  RotateCcw,
  Plus,
  Eye,
  Edit2,
  Trash2,
  ChevronLeft,
  ChevronRight,
  FileSpreadsheet,
  FileText,
  UtensilsCrossed,
  CheckCircle2,
  X,
  Clock,
  Users,
  MapPin,
  Flame,
} from "lucide-react";
import { toast } from "sonner";

interface KitchenShiftRecord {
  id: string;
  kitchenName: string;
  kitchenCode: string;
  daysActive: string;
  shiftTiming: string;
  moduleName: string;
  studentCapacity: number;
  instructorName: string;
  status: "Active" | "Scheduled" | "Cleaning / Sanitization";
}

const initialKitchenShifts: KitchenShiftRecord[] = [
  {
    id: "k-1",
    kitchenName: "Basic Training Kitchen (BTK)",
    kitchenCode: "BTK-A",
    daysActive: "Monday - Friday",
    shiftTiming: "09:00 AM - 01:00 PM",
    moduleName: "Foundation Culinary Arts I",
    studentCapacity: 30,
    instructorName: "Chef Rajesh Sharma",
    status: "Active",
  },
  {
    id: "k-2",
    kitchenName: "Quantity Food Kitchen (QFK)",
    kitchenCode: "QFK-1",
    daysActive: "Monday - Thursday",
    shiftTiming: "08:30 AM - 02:00 PM",
    moduleName: "Bulk Production & Banquets",
    studentCapacity: 35,
    instructorName: "Chef Amit Roy",
    status: "Active",
  },
  {
    id: "k-3",
    kitchenName: "Advanced Training Kitchen (ATK)",
    kitchenCode: "ATK-2",
    daysActive: "Tuesday - Friday",
    shiftTiming: "10:00 AM - 02:00 PM",
    moduleName: "International & Molecular Cuisine",
    studentCapacity: 25,
    instructorName: "Chef Amit Roy",
    status: "Scheduled",
  },
  {
    id: "k-4",
    kitchenName: "Bakery & Confectionery Lab",
    kitchenCode: "BAK-1",
    daysActive: "Monday - Friday",
    shiftTiming: "09:30 AM - 01:30 PM",
    moduleName: "Viennoiserie & Sugar Craft",
    studentCapacity: 25,
    instructorName: "Chef Vikram Singh",
    status: "Active",
  },
  {
    id: "k-5",
    kitchenName: "Larder & Butchery Unit",
    kitchenCode: "LAR-01",
    daysActive: "Wednesday & Thursday",
    shiftTiming: "02:00 PM - 05:00 PM",
    moduleName: "Charcuterie & Cold Kitchen",
    studentCapacity: 20,
    instructorName: "Chef Rajesh Sharma",
    status: "Cleaning / Sanitization",
  },
];

export default function KitchenPracticalSchedulePage() {
  const [kitchenShifts, setKitchenShifts] = useState<KitchenShiftRecord[]>(initialKitchenShifts);
  const [selectedFacility, setSelectedFacility] = useState("All Facilities");
  const [selectedStatus, setSelectedStatus] = useState("All Status");
  const [searchQuery, setSearchQuery] = useState("");
  const [selectedRows, setSelectedRows] = useState<string[]>([]);
  const [pageSize, setPageSize] = useState("10");

  // Modal State
  const [isModalOpen, setIsModalOpen] = useState(false);
  const [viewingShift, setViewingShift] = useState<KitchenShiftRecord | null>(null);
  const [editingId, setEditingId] = useState<string | null>(null);

  const [formData, setFormData] = useState({
    kitchenName: "Basic Training Kitchen (BTK)",
    kitchenCode: "BTK-A",
    daysActive: "Monday - Friday",
    shiftTiming: "09:00 AM - 01:00 PM",
    moduleName: "",
    studentCapacity: 30,
    instructorName: "Chef Rajesh Sharma",
    status: "Active" as "Active" | "Scheduled" | "Cleaning / Sanitization",
  });

  const filteredShifts = kitchenShifts.filter((k) => {
    const matchesFacility =
      selectedFacility === "All Facilities" || k.kitchenName.includes(selectedFacility);
    const matchesStatus =
      selectedStatus === "All Status" || k.status === selectedStatus;
    const matchesSearch =
      searchQuery === "" ||
      k.kitchenName.toLowerCase().includes(searchQuery.toLowerCase()) ||
      k.kitchenCode.toLowerCase().includes(searchQuery.toLowerCase()) ||
      k.moduleName.toLowerCase().includes(searchQuery.toLowerCase()) ||
      k.instructorName.toLowerCase().includes(searchQuery.toLowerCase());
    return matchesFacility && matchesStatus && matchesSearch;
  });

  const handleSelectAll = (e: React.ChangeEvent<HTMLInputElement>) => {
    if (e.target.checked) {
      setSelectedRows(filteredShifts.map((k) => k.id));
    } else {
      setSelectedRows([]);
    }
  };

  const handleRowSelect = (id: string) => {
    setSelectedRows((prev) =>
      prev.includes(id) ? prev.filter((r) => r !== id) : [...prev, id]
    );
  };

  const handleResetFilters = () => {
    setSelectedFacility("All Facilities");
    setSelectedStatus("All Status");
    setSearchQuery("");
    toast.info("Filters reset to default");
  };

  const handleOpenAdd = () => {
    setEditingId(null);
    setFormData({
      kitchenName: "Basic Training Kitchen (BTK)",
      kitchenCode: "BTK-A",
      daysActive: "Monday - Friday",
      shiftTiming: "09:00 AM - 01:00 PM",
      moduleName: "",
      studentCapacity: 30,
      instructorName: "Chef Rajesh Sharma",
      status: "Active",
    });
    setIsModalOpen(true);
  };

  const handleEdit = (k: KitchenShiftRecord) => {
    setEditingId(k.id);
    setFormData({
      kitchenName: k.kitchenName,
      kitchenCode: k.kitchenCode,
      daysActive: k.daysActive,
      shiftTiming: k.shiftTiming,
      moduleName: k.moduleName,
      studentCapacity: k.studentCapacity,
      instructorName: k.instructorName,
      status: k.status,
    });
    setIsModalOpen(true);
  };

  const handleDelete = (id: string) => {
    setKitchenShifts((prev) => prev.filter((k) => k.id !== id));
    toast.success("Kitchen shift record removed");
  };

  const handleSubmitForm = (e: React.FormEvent) => {
    e.preventDefault();
    if (!formData.moduleName.trim()) {
      toast.error("Please enter Culinary Module Name");
      return;
    }

    if (editingId) {
      setKitchenShifts((prev) =>
        prev.map((k) =>
          k.id === editingId
            ? {
                ...k,
                kitchenName: formData.kitchenName,
                kitchenCode: formData.kitchenCode,
                daysActive: formData.daysActive,
                shiftTiming: formData.shiftTiming,
                moduleName: formData.moduleName,
                studentCapacity: Number(formData.studentCapacity),
                instructorName: formData.instructorName,
                status: formData.status,
              }
            : k
        )
      );
      toast.success("Kitchen practical shift updated");
    } else {
      const newShift: KitchenShiftRecord = {
        id: `k-${Date.now()}`,
        kitchenName: formData.kitchenName,
        kitchenCode: formData.kitchenCode,
        daysActive: formData.daysActive,
        shiftTiming: formData.shiftTiming,
        moduleName: formData.moduleName,
        studentCapacity: Number(formData.studentCapacity),
        instructorName: formData.instructorName,
        status: formData.status,
      };
      setKitchenShifts((prev) => [newShift, ...prev]);
      toast.success("New kitchen practical shift scheduled");
    }
    setIsModalOpen(false);
  };

  const getStatusBadge = (status: "Active" | "Scheduled" | "Cleaning / Sanitization") => {
    switch (status) {
      case "Active":
        return "bg-[#DCFCE7] text-[#15803D] border-[#BBF7D0]";
      case "Scheduled":
        return "bg-[#E0F2FE] text-[#0369A1] border-[#BAE6FD]";
      case "Cleaning / Sanitization":
        return "bg-[#FEF3C7] text-[#B45309] border-[#FDE68A]";
    }
  };

  return (
    <div className="space-y-6 pb-12 font-sans bg-[#F8FAFC] min-h-screen">
      {/* 1. Header Bar */}
      <div>
        <div className="flex items-center gap-2 text-xs text-[#64748B] mb-2 font-medium">
          <Link href="/admin/dashboard" className="hover:text-[#1769E8] transition-colors">
            Home
          </Link>
          <span>&gt;</span>
          <Link href="/admin/timetable" className="hover:text-[#1769E8] transition-colors">
            Timetable Management
          </Link>
          <span>&gt;</span>
          <span className="text-[#071A4D] font-semibold">Kitchen Practicals</span>
        </div>

        <div className="flex flex-col md:flex-row md:items-center justify-between gap-4">
          <div>
            <h1 className="text-3xl font-bold font-heading text-[#071A4D] tracking-tight">
              Commercial Kitchen Practical Schedule
            </h1>
            <p className="text-[15px] text-[#64748B] mt-1 font-normal">
              Laboratory shift allocations, culinary modules, chef instructor supervision, and kitchen sanitation cycles.
            </p>
          </div>

          <div className="flex items-center gap-3">
            <button
              onClick={() => toast.success("Exporting kitchen roster to Excel...")}
              className="px-4 py-2 bg-white border border-[#E2E8F0] rounded-lg text-sm font-medium text-[#334155] hover:bg-slate-50 transition-colors flex items-center gap-2 shadow-xs cursor-pointer"
            >
              <FileSpreadsheet className="w-4 h-4 text-emerald-600" />
              <span>Export</span>
            </button>
            <button
              onClick={() => toast.info("Generating kitchen shift logs...")}
              className="px-4 py-2 bg-white border border-[#E2E8F0] rounded-lg text-sm font-medium text-[#334155] hover:bg-slate-50 transition-colors flex items-center gap-2 shadow-xs cursor-pointer"
            >
              <FileText className="w-4 h-4 text-purple-600" />
              <span>Generate Report</span>
            </button>
            <button
              onClick={handleOpenAdd}
              className="px-5 py-2.5 bg-[#1769E8] hover:bg-[#1255be] text-white rounded-lg text-sm font-semibold transition-colors flex items-center gap-2 shadow-sm cursor-pointer"
            >
              <Plus className="w-4 h-4" />
              <span>+ Add Kitchen Shift</span>
            </button>
          </div>
        </div>
      </div>

      {/* 2. Filter Bar */}
      <div className="bg-white rounded-xl border border-[#E5EAF0] shadow-xs p-4">
        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-12 gap-3.5 items-end">
          <div className="lg:col-span-4">
            <label className="block text-[11px] font-semibold text-[#64748B] uppercase tracking-wider mb-1.5">
              Kitchen Facility
            </label>
            <select
              value={selectedFacility}
              onChange={(e) => setSelectedFacility(e.target.value)}
              className="w-full bg-white border border-[#E2E8F0] text-sm text-[#0F172A] rounded-lg px-3 py-2 font-medium focus:ring-2 focus:ring-[#1769E8]/20 focus:border-[#1769E8] outline-none transition-all cursor-pointer"
            >
              <option>All Facilities</option>
              <option>Basic Training Kitchen</option>
              <option>Quantity Food Kitchen</option>
              <option>Advanced Training Kitchen</option>
              <option>Bakery & Confectionery</option>
              <option>Larder & Butchery</option>
            </select>
          </div>

          <div className="lg:col-span-3">
            <label className="block text-[11px] font-semibold text-[#64748B] uppercase tracking-wider mb-1.5">
              Status
            </label>
            <select
              value={selectedStatus}
              onChange={(e) => setSelectedStatus(e.target.value)}
              className="w-full bg-white border border-[#E2E8F0] text-sm text-[#0F172A] rounded-lg px-3 py-2 font-medium focus:ring-2 focus:ring-[#1769E8]/20 focus:border-[#1769E8] outline-none transition-all cursor-pointer"
            >
              <option>All Status</option>
              <option value="Active">Active Running</option>
              <option value="Scheduled">Scheduled</option>
              <option value="Cleaning / Sanitization">Cleaning / Sanitization</option>
            </select>
          </div>

          <div className="lg:col-span-3">
            <label className="block text-[11px] font-semibold text-[#64748B] uppercase tracking-wider mb-1.5">
              Search
            </label>
            <div className="relative">
              <Search className="w-4 h-4 absolute left-3 top-1/2 -translate-y-1/2 text-[#94A3B8]" />
              <input
                type="text"
                value={searchQuery}
                onChange={(e) => setSearchQuery(e.target.value)}
                placeholder="Search kitchen, module, chef..."
                className="w-full pl-9 pr-3 py-2 bg-white border border-[#E2E8F0] text-sm text-[#0F172A] placeholder:text-[#94A3B8] rounded-lg focus:ring-2 focus:ring-[#1769E8]/20 focus:border-[#1769E8] outline-none transition-all"
              />
            </div>
          </div>

          <div className="lg:col-span-2 flex items-center gap-2">
            <button
              onClick={() => toast.success(`Found ${filteredShifts.length} kitchen shifts`)}
              className="flex-1 bg-[#1769E8] hover:bg-[#1255be] text-white py-2 rounded-lg text-sm font-semibold transition-colors flex items-center justify-center gap-1.5 shadow-xs cursor-pointer"
            >
              <Search className="w-4 h-4" />
              <span>Search</span>
            </button>
            <button
              onClick={handleResetFilters}
              className="border border-[#E2E8F0] hover:bg-slate-50 text-[#64748B] p-2 rounded-lg text-sm font-medium transition-colors flex items-center justify-center cursor-pointer"
              title="Reset Filters"
            >
              <RotateCcw className="w-4 h-4" />
            </button>
          </div>
        </div>
      </div>

      {/* 3. Full-Width Table Card */}
      <div className="bg-white rounded-xl border border-[#E5EAF0] shadow-xs overflow-hidden">
        <div className="p-4 border-b border-[#E5EAF0] flex items-center justify-between">
          <div className="flex items-center gap-2.5">
            <UtensilsCrossed className="w-5 h-5 text-[#1769E8]" />
            <h2 className="font-heading font-bold text-lg text-[#071A4D]">
              Kitchen Shifts ({filteredShifts.length})
            </h2>
          </div>
          <div className="flex items-center gap-2">
            <select
              value={pageSize}
              onChange={(e) => setPageSize(e.target.value)}
              className="text-xs bg-white border border-[#E2E8F0] rounded-lg px-2.5 py-1.5 font-medium text-[#475569] outline-none cursor-pointer"
            >
              <option value="10">10 per page</option>
              <option value="25">25 per page</option>
            </select>
          </div>
        </div>

        <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] font-semibold">
                <th className="py-3 px-3.5 w-10 text-center">
                  <input
                    type="checkbox"
                    checked={
                      selectedRows.length === filteredShifts.length &&
                      filteredShifts.length > 0
                    }
                    onChange={handleSelectAll}
                    className="rounded border-[#CBD5E1] text-[#1769E8] focus:ring-0 cursor-pointer"
                  />
                </th>
                <th className="py-3 px-2 w-8 text-center text-[#64748B]">#</th>
                <th className="py-3 px-3.5 font-bold text-[#071A4D]">Kitchen Facility</th>
                <th className="py-3 px-3.5 font-bold text-[#071A4D]">Days &amp; Timings</th>
                <th className="py-3 px-3.5 font-bold text-[#071A4D]">Curriculum Module</th>
                <th className="py-3 px-3.5 font-bold text-[#071A4D] text-center">Batch Size</th>
                <th className="py-3 px-3.5 font-bold text-[#071A4D]">Chef Instructor</th>
                <th className="py-3 px-3.5 font-bold text-[#071A4D] text-center">Status</th>
                <th className="py-3 px-4 font-bold text-[#071A4D] text-right">Actions</th>
              </tr>
            </thead>
            <tbody className="divide-y divide-[#E5EAF0]">
              {filteredShifts.length === 0 ? (
                <tr>
                  <td colSpan={9} className="py-12 text-center text-slate-400">
                    No kitchen practical shifts match your search criteria.
                  </td>
                </tr>
              ) : (
                filteredShifts.map((k, idx) => (
                  <tr
                    key={k.id}
                    className={`hover:bg-[#F8FAFC] transition-colors ${
                      selectedRows.includes(k.id) ? "bg-[#EFF6FF]/40" : ""
                    }`}
                  >
                    <td className="py-3.5 px-3.5 text-center">
                      <input
                        type="checkbox"
                        checked={selectedRows.includes(k.id)}
                        onChange={() => handleRowSelect(k.id)}
                        className="rounded border-[#CBD5E1] text-[#1769E8] focus:ring-0 cursor-pointer"
                      />
                    </td>
                    <td className="py-3.5 px-2 text-center text-[#94A3B8] font-medium">
                      {idx + 1}
                    </td>
                    <td className="py-3.5 px-3.5">
                      <div className="font-bold text-[#071A4D] text-sm flex items-center gap-1.5">
                        <Flame className="w-3.5 h-3.5 text-amber-500" />
                        <span>{k.kitchenName}</span>
                      </div>
                      <div className="font-mono text-[10px] text-[#1769E8] font-semibold mt-0.5">
                        {k.kitchenCode}
                      </div>
                    </td>
                    <td className="py-3.5 px-3.5">
                      <div className="font-semibold text-[#334155]">{k.daysActive}</div>
                      <div className="font-mono text-[11px] text-[#64748B]">{k.shiftTiming}</div>
                    </td>
                    <td className="py-3.5 px-3.5 font-medium text-[#071A4D]">
                      {k.moduleName}
                    </td>
                    <td className="py-3.5 px-3.5 text-center font-mono font-bold text-[#071A4D]">
                      {k.studentCapacity} Max
                    </td>
                    <td className="py-3.5 px-3.5 text-[#334155] font-semibold">
                      {k.instructorName}
                    </td>
                    <td className="py-3.5 px-3.5 text-center">
                      <span
                        className={`inline-flex items-center px-2.5 py-0.5 rounded-full text-[11px] font-bold border ${getStatusBadge(
                          k.status
                        )}`}
                      >
                        {k.status}
                      </span>
                    </td>
                    <td className="py-3.5 px-4 text-right">
                      <div className="flex items-center justify-end gap-1.5">
                        <button
                          onClick={() => setViewingShift(k)}
                          className="p-1.5 text-[#64748B] hover:text-[#1769E8] hover:bg-[#EFF6FF] rounded-md transition-colors cursor-pointer"
                          title="View Shift"
                        >
                          <Eye className="w-3.5 h-3.5" />
                        </button>
                        <button
                          onClick={() => handleEdit(k)}
                          className="p-1.5 text-[#64748B] hover:text-[#1769E8] hover:bg-[#EFF6FF] rounded-md transition-colors cursor-pointer"
                          title="Edit Shift"
                        >
                          <Edit2 className="w-3.5 h-3.5" />
                        </button>
                        <button
                          onClick={() => handleDelete(k.id)}
                          className="p-1.5 text-[#64748B] hover:text-rose-600 hover:bg-rose-50 rounded-md transition-colors cursor-pointer"
                          title="Delete Shift"
                        >
                          <Trash2 className="w-3.5 h-3.5" />
                        </button>
                      </div>
                    </td>
                  </tr>
                ))
              )}
            </tbody>
          </table>
        </div>

        <div className="p-4 border-t border-[#E5EAF0] flex flex-col sm:flex-row items-center justify-between gap-3 text-xs text-[#64748B]">
          <div>
            Showing 1 to {filteredShifts.length} of {kitchenShifts.length} shifts
          </div>
          <div className="flex items-center gap-1">
            <button className="p-1.5 border border-[#E2E8F0] rounded-md hover:bg-slate-50 transition-colors cursor-pointer">
              <ChevronLeft className="w-3.5 h-3.5" />
            </button>
            <button className="px-3 py-1 bg-[#1769E8] text-white font-bold rounded-md text-xs">
              1
            </button>
            <button className="p-1.5 border border-[#E2E8F0] rounded-md hover:bg-slate-50 transition-colors cursor-pointer">
              <ChevronRight className="w-3.5 h-3.5" />
            </button>
          </div>
        </div>
      </div>

      {/* 4. MODAL: + Add / Edit Kitchen Shift */}
      {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="bg-white rounded-2xl border border-[#E5EAF0] shadow-xl max-w-lg w-full overflow-hidden">
            <div className="p-4 border-b border-[#E5EAF0] flex items-center justify-between bg-[#F8FAFC]">
              <div className="flex items-center gap-2">
                <UtensilsCrossed className="w-5 h-5 text-[#1769E8]" />
                <h3 className="font-heading font-bold text-base text-[#071A4D]">
                  {editingId ? "Edit Kitchen Shift" : "Schedule Kitchen Practical Shift"}
                </h3>
              </div>
              <button
                onClick={() => setIsModalOpen(false)}
                className="p-1 text-[#64748B] hover:text-[#071A4D] rounded-md transition-colors cursor-pointer"
              >
                <X className="w-5 h-5" />
              </button>
            </div>

            <form onSubmit={handleSubmitForm} className="p-5 space-y-4 text-xs">
              <div className="grid grid-cols-2 gap-3">
                <div>
                  <label className="block font-semibold text-[#334155] mb-1">
                    Kitchen Facility <span className="text-rose-500">*</span>
                  </label>
                  <select
                    value={formData.kitchenName}
                    onChange={(e) => setFormData({ ...formData, kitchenName: e.target.value })}
                    className="w-full px-3 py-2 border border-[#E2E8F0] rounded-lg text-sm text-[#0F172A] focus:ring-2 focus:ring-[#1769E8]/20 focus:border-[#1769E8] outline-none transition-all bg-white cursor-pointer"
                  >
                    <option>Basic Training Kitchen (BTK)</option>
                    <option>Quantity Food Kitchen (QFK)</option>
                    <option>Advanced Training Kitchen (ATK)</option>
                    <option>Bakery & Confectionery Lab</option>
                    <option>Larder & Butchery Unit</option>
                  </select>
                </div>

                <div>
                  <label className="block font-semibold text-[#334155] mb-1">
                    Facility Code
                  </label>
                  <input
                    type="text"
                    value={formData.kitchenCode}
                    onChange={(e) => setFormData({ ...formData, kitchenCode: e.target.value })}
                    placeholder="e.g. BTK-A"
                    className="w-full px-3 py-2 border border-[#E2E8F0] rounded-lg text-sm text-[#0F172A] uppercase font-mono focus:ring-2 focus:ring-[#1769E8]/20 focus:border-[#1769E8] outline-none transition-all"
                  />
                </div>
              </div>

              <div>
                <label className="block font-semibold text-[#334155] mb-1">
                  Culinary Practical Module <span className="text-rose-500">*</span>
                </label>
                <input
                  type="text"
                  required
                  value={formData.moduleName}
                  onChange={(e) => setFormData({ ...formData, moduleName: e.target.value })}
                  placeholder="e.g. Foundation Culinary Arts I"
                  className="w-full px-3 py-2 border border-[#E2E8F0] rounded-lg text-sm text-[#0F172A] placeholder:text-[#94A3B8] focus:ring-2 focus:ring-[#1769E8]/20 focus:border-[#1769E8] outline-none transition-all"
                />
              </div>

              <div className="grid grid-cols-2 gap-3">
                <div>
                  <label className="block font-semibold text-[#334155] mb-1">
                    Days Active
                  </label>
                  <input
                    type="text"
                    value={formData.daysActive}
                    onChange={(e) => setFormData({ ...formData, daysActive: e.target.value })}
                    placeholder="e.g. Monday - Friday"
                    className="w-full px-3 py-2 border border-[#E2E8F0] rounded-lg text-sm text-[#0F172A] focus:ring-2 focus:ring-[#1769E8]/20 focus:border-[#1769E8] outline-none transition-all"
                  />
                </div>

                <div>
                  <label className="block font-semibold text-[#334155] mb-1">
                    Shift Timings
                  </label>
                  <input
                    type="text"
                    value={formData.shiftTiming}
                    onChange={(e) => setFormData({ ...formData, shiftTiming: e.target.value })}
                    placeholder="e.g. 09:00 AM - 01:00 PM"
                    className="w-full px-3 py-2 border border-[#E2E8F0] rounded-lg text-sm text-[#0F172A] focus:ring-2 focus:ring-[#1769E8]/20 focus:border-[#1769E8] outline-none transition-all font-mono"
                  />
                </div>
              </div>

              <div className="grid grid-cols-2 gap-3">
                <div>
                  <label className="block font-semibold text-[#334155] mb-1">
                    Student Capacity
                  </label>
                  <input
                    type="number"
                    min="10"
                    max="60"
                    value={formData.studentCapacity}
                    onChange={(e) => setFormData({ ...formData, studentCapacity: parseInt(e.target.value) || 0 })}
                    className="w-full px-3 py-2 border border-[#E2E8F0] rounded-lg text-sm text-[#0F172A] font-mono focus:ring-2 focus:ring-[#1769E8]/20 focus:border-[#1769E8] outline-none transition-all"
                  />
                </div>

                <div>
                  <label className="block font-semibold text-[#334155] mb-1">
                    Chef Instructor In-Charge
                  </label>
                  <select
                    value={formData.instructorName}
                    onChange={(e) => setFormData({ ...formData, instructorName: e.target.value })}
                    className="w-full px-3 py-2 border border-[#E2E8F0] rounded-lg text-sm text-[#0F172A] focus:ring-2 focus:ring-[#1769E8]/20 focus:border-[#1769E8] outline-none transition-all bg-white cursor-pointer"
                  >
                    <option>Chef Rajesh Sharma</option>
                    <option>Chef Amit Roy</option>
                    <option>Chef Vikram Singh</option>
                  </select>
                </div>
              </div>

              <div>
                <label className="block font-semibold text-[#334155] mb-1">
                  Shift Status
                </label>
                <select
                  value={formData.status}
                  onChange={(e) =>
                    setFormData({
                      ...formData,
                      status: e.target.value as "Active" | "Scheduled" | "Cleaning / Sanitization",
                    })
                  }
                  className="w-full px-3 py-2 border border-[#E2E8F0] rounded-lg text-sm text-[#0F172A] focus:ring-2 focus:ring-[#1769E8]/20 focus:border-[#1769E8] outline-none transition-all bg-white cursor-pointer"
                >
                  <option value="Active">Active Running</option>
                  <option value="Scheduled">Scheduled</option>
                  <option value="Cleaning / Sanitization">Cleaning / Sanitization</option>
                </select>
              </div>

              <div className="flex items-center gap-2 pt-3 border-t border-[#E5EAF0]">
                <button
                  type="button"
                  onClick={() => setIsModalOpen(false)}
                  className="flex-1 py-2 px-3 border border-[#E2E8F0] text-[#64748B] hover:bg-slate-50 rounded-lg text-xs font-semibold transition-colors cursor-pointer"
                >
                  Cancel
                </button>
                <button
                  type="submit"
                  className="flex-1 py-2 px-3 bg-[#1769E8] hover:bg-[#1255be] text-white rounded-lg text-xs font-semibold transition-colors flex items-center justify-center gap-1.5 shadow-xs cursor-pointer"
                >
                  <CheckCircle2 className="w-3.5 h-3.5" />
                  <span>{editingId ? "Update Shift" : "Save Shift"}</span>
                </button>
              </div>
            </form>
          </div>
        </div>
      )}

      {/* 5. MODAL: View Kitchen Shift Details */}
      {viewingShift && (
        <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="bg-white rounded-2xl border border-[#E5EAF0] shadow-xl max-w-md w-full overflow-hidden">
            <div className="p-4 border-b border-[#E5EAF0] flex items-center justify-between bg-[#F8FAFC]">
              <div className="flex items-center gap-2">
                <UtensilsCrossed className="w-5 h-5 text-[#1769E8]" />
                <h3 className="font-heading font-bold text-base text-[#071A4D]">
                  Kitchen Shift Details
                </h3>
              </div>
              <button
                onClick={() => setViewingShift(null)}
                className="p-1 text-[#64748B] hover:text-[#071A4D] rounded-md transition-colors cursor-pointer"
              >
                <X className="w-5 h-5" />
              </button>
            </div>

            <div className="p-5 space-y-4 text-xs">
              <div className="flex items-center justify-between pb-3 border-b border-[#E5EAF0]">
                <div>
                  <h4 className="font-heading font-bold text-base text-[#071A4D]">
                    {viewingShift.kitchenName}
                  </h4>
                  <p className="font-mono text-xs text-[#1769E8] font-bold">{viewingShift.kitchenCode}</p>
                </div>
                <span
                  className={`px-2.5 py-1 rounded-full text-xs font-bold border ${getStatusBadge(
                    viewingShift.status
                  )}`}
                >
                  {viewingShift.status}
                </span>
              </div>

              <div className="space-y-2.5">
                <div className="flex items-center justify-between p-2.5 bg-[#F8FAFC] rounded-lg border border-[#E5EAF0]">
                  <span className="font-medium text-[#64748B]">Practical Module</span>
                  <span className="font-bold text-[#071A4D]">{viewingShift.moduleName}</span>
                </div>
                <div className="flex items-center justify-between p-2.5 bg-[#F8FAFC] rounded-lg border border-[#E5EAF0]">
                  <span className="font-medium text-[#64748B]">Days & Timing</span>
                  <span className="font-semibold text-[#071A4D]">{viewingShift.daysActive} • {viewingShift.shiftTiming}</span>
                </div>
                <div className="flex items-center justify-between p-2.5 bg-[#F8FAFC] rounded-lg border border-[#E5EAF0]">
                  <span className="font-medium text-[#64748B]">Capacity</span>
                  <span className="font-mono font-bold text-[#1769E8]">{viewingShift.studentCapacity} Workstations</span>
                </div>
                <div className="flex items-center justify-between p-2.5 bg-[#F8FAFC] rounded-lg border border-[#E5EAF0]">
                  <span className="font-medium text-[#64748B]">Instructor In-Charge</span>
                  <span className="font-bold text-[#071A4D]">{viewingShift.instructorName}</span>
                </div>
              </div>

              <div className="flex items-center justify-end gap-2 pt-3 border-t border-[#E5EAF0]">
                <button
                  type="button"
                  onClick={() => {
                    const toEdit = viewingShift;
                    setViewingShift(null);
                    handleEdit(toEdit);
                  }}
                  className="py-2 px-3 border border-[#E2E8F0] hover:bg-slate-50 text-[#334155] rounded-lg text-xs font-semibold transition-colors cursor-pointer"
                >
                  Edit Shift
                </button>
                <button
                  type="button"
                  onClick={() => setViewingShift(null)}
                  className="py-2 px-4 bg-[#1769E8] hover:bg-[#1255be] text-white rounded-lg text-xs font-semibold transition-colors cursor-pointer"
                >
                  Close
                </button>
              </div>
            </div>
          </div>
        </div>
      )}
    </div>
  );
}