import { useState } from 'react';
import { 
  Layers, 
  ShieldCheck, 
  CheckSquare, 
  Clock, 
  Search, 
  QrCode,
  Power,
  List,
  Pencil,
  Plus, 
} from 'lucide-react';
import Button from "@/components/common/button";
import StatCard from "@/components/common/dashStatCard";
import Table from "@/components/common/dataTable";
import NavigationTabs from '@/components/common/tabs';
import { helpdeskTtabs } from '@/constants/constant';

const StatusBadge = ({
  text,
  color,
}: {
  text: string;
  color: string;
}) => (
  <span
    className={`inline-flex items-center gap-1 rounded-full px-2 py-0.5 text-[10px] font-semibold uppercase tracking-wider whitespace-nowrap ${color}`}
  >
    <span className="h-1.5 w-1.5 rounded-full bg-current" />
    {text}
  </span>
);

const ActionButtons = ({ active }: { active: boolean }) => (
  <div className="flex justify-center items-center gap-1">
    <Button className="flex h-7 w-7 items-center justify-center rounded-md border border-slate-700/60 text-slate-400 hover:bg-slate-800 hover:text-white transition">
      <Pencil size={13} />
    </Button>

    <Button className="flex h-7 w-7 items-center justify-center rounded-md border border-slate-700/60 text-slate-400 hover:bg-slate-800 hover:text-white transition">
      <List size={13} />
    </Button>

    <Button className="flex h-7 w-7 items-center justify-center rounded-md border border-slate-700/60 text-slate-400 hover:bg-slate-800 hover:text-white transition">
      <ShieldCheck size={13} />
    </Button>

    <Button className="flex h-7 w-7 items-center justify-center rounded-md border border-slate-700/60 text-slate-400 hover:bg-slate-800 hover:text-white transition">
      <QrCode size={13} />
    </Button>

    <Button
      className={`flex h-7 w-7 items-center justify-center rounded-md border border-slate-700/60 hover:bg-slate-800 transition ${
        active ? "text-red-400" : "text-emerald-400"
      }`}
    >
      <Power size={13} />
    </Button>
  </div>
);

const headers = [
  "",
  "Block",
  "Floor",
  "Zone",
  "Department",
  "Location",
  "Window",
  "TAT",
  "Sched.",
  "Approval",
  "Status",
  "Actions",
];

const checkbox = (
  <input
    type="checkbox"
    className="h-4 w-4 appearance-none rounded border border-slate-600 bg-slate-700 checked:bg-slate-500 checked:border-slate-500 cursor-pointer"
  />
);

const rows = [
  [
    checkbox,
    "Block 2",
    "1",
    "Z2",
    "HVAC",
    <span className="font-semibold text-slate-100 whitespace-nowrap">Parking P1</span>,
    <span className="font-mono text-xs whitespace-nowrap">01:56–18:00</span>,
    "60m",
    "4",
    <span className="text-emerald-400 font-semibold whitespace-nowrap">✓ Yes</span>,
    <StatusBadge
      text="Inactive"
      color="bg-slate-700/50 text-slate-400"
    />,
    <ActionButtons active={false} />,
  ],

  [
    checkbox,
    "Block 1",
    "2",
    "Z1",
    "Inspection work",
    <span className="font-semibold text-slate-100 whitespace-nowrap">Cafeteria</span>,
    <span className="font-mono text-xs whitespace-nowrap">01:56–23:59</span>,
    "360m",
    "6",
    <span className="text-slate-500">—</span>,
    <StatusBadge
      text="Active"
      color="bg-emerald-500/15 text-emerald-400"
    />,
    <ActionButtons active />,
  ],

  [
    checkbox,
    "Block 2",
    "G",
    "N",
    "Inspection work",
    <span className="font-semibold text-slate-100 whitespace-nowrap">Main lobby</span>,
    <span className="font-mono text-xs whitespace-nowrap">08:00–23:59</span>,
    "360m",
    "4",
    <span className="text-emerald-400 font-semibold whitespace-nowrap">✓ Yes</span>,
    <StatusBadge
      text="Active"
      color="bg-emerald-500/15 text-emerald-400"
    />,
    <ActionButtons active />,
  ],

  [
    checkbox,
    "Block 1",
    "2",
    "Z2",
    "Electrical",
    <span className="font-semibold text-slate-100 whitespace-nowrap">Reception</span>,
    <span className="font-mono text-xs whitespace-nowrap">08:00–18:00</span>,
    "360m",
    "4",
    <span className="text-slate-500">—</span>,
    <StatusBadge
      text="Inactive"
      color="bg-slate-700/50 text-slate-400"
    />,
    <ActionButtons active={false} />,
  ],

  [
    checkbox,
    "Block 2",
    "3",
    "Z1",
    "Housekeeping",
    <span className="font-semibold text-slate-100 whitespace-nowrap">Cafeteria</span>,
    <span className="font-mono text-xs whitespace-nowrap">08:00–18:00</span>,
    "20m",
    "8",
    <span className="text-emerald-400 font-semibold whitespace-nowrap">✓ Yes</span>,
    <StatusBadge
      text="Active"
      color="bg-emerald-500/15 text-emerald-400"
    />,
    <ActionButtons active />,
  ],

  [
    checkbox,
    "Block 1",
    "3",
    "Z1",
    "Electrical",
    <span className="font-semibold text-slate-100 whitespace-nowrap">Food court</span>,
    <span className="font-mono text-xs whitespace-nowrap">08:00–17:30</span>,
    "20m",
    "8",
    <span className="text-slate-500">—</span>,
    <StatusBadge
      text="Active"
      color="bg-emerald-500/15 text-emerald-400"
    />,
    <ActionButtons active />,
  ],

  [
    checkbox,
    "Block 2",
    "1",
    "Z2",
    "HVAC",
    <span className="font-semibold text-slate-100 whitespace-nowrap">Parking P1</span>,
    <span className="font-mono text-xs whitespace-nowrap">01:56–18:00</span>,
    "60m",
    "4",
    <span className="text-emerald-400 font-semibold whitespace-nowrap">✓ Yes</span>,
    <StatusBadge
      text="Inactive"
      color="bg-slate-700/50 text-slate-400"
    />,
    <ActionButtons active={false} />,
  ],

  [
    checkbox,
    "Block 1",
    "2",
    "Z1",
    "Inspection work",
    <span className="font-semibold text-slate-100 whitespace-nowrap">Cafeteria</span>,
    <span className="font-mono text-xs whitespace-nowrap">01:56–23:59</span>,
    "360m",
    "6",
    <span className="text-slate-500">—</span>,
    <StatusBadge
      text="Active"
      color="bg-emerald-500/15 text-emerald-400"
    />,
    <ActionButtons active />,
  ],

  [
    checkbox,
    "Block 2",
    "G",
    "N",
    "Inspection work",
    <span className="font-semibold text-slate-100 whitespace-nowrap">Main lobby</span>,
    <span className="font-mono text-xs whitespace-nowrap">08:00–23:59</span>,
    "360m",
    "4",
    <span className="text-emerald-400 font-semibold whitespace-nowrap">✓ Yes</span>,
    <StatusBadge
      text="Active"
      color="bg-emerald-500/15 text-emerald-400"
    />,
    <ActionButtons active />,
  ],

  [
    checkbox,
    "Block 1",
    "2",
    "Z2",
    "Electrical",
    <span className="font-semibold text-slate-100 whitespace-nowrap">Reception</span>,
    <span className="font-mono text-xs whitespace-nowrap">08:00–18:00</span>,
    "360m",
    "4",
    <span className="text-slate-500">—</span>,
    <StatusBadge
      text="Inactive"
      color="bg-slate-700/50 text-slate-400"
    />,
    <ActionButtons active={false} />,
  ],

  [
    checkbox,
    "Block 2",
    "3",
    "Z1",
    "Housekeeping",
    <span className="font-semibold text-slate-100 whitespace-nowrap">Cafeteria</span>,
    <span className="font-mono text-xs whitespace-nowrap">08:00–18:00</span>,
    "20m",
    "8",
    <span className="text-emerald-400 font-semibold whitespace-nowrap">✓ Yes</span>,
    <StatusBadge
      text="Active"
      color="bg-emerald-500/15 text-emerald-400"
    />,
    <ActionButtons active />,
  ],

  [
    checkbox,
    "Block 1",
    "3",
    "Z1",
    "Electrical",
    <span className="font-semibold text-slate-100 whitespace-nowrap">Food court</span>,
    <span className="font-mono text-xs whitespace-nowrap">08:00–17:30</span>,
    "20m",
    "8",
    <span className="text-slate-500">—</span>,
    <StatusBadge
      text="Active"
      color="bg-emerald-500/15 text-emerald-400"
    />,
    <ActionButtons active />,
  ],
];

export default function HelpDeskPortal() {
  const [activeTab, setActiveTab] = useState<string>('Location');

  return (
    <div className="my-15 px-4 text-slate-100 font-sans">
      {/* --- HEADER SECTION --- */}
      <div className="flex flex-col md:flex-row md:items-start md:justify-between gap-3 mb-4">
        <div>
          <div className="flex items-center gap-2 text-[10px] font-bold tracking-widest text-slate-500 uppercase font-mono">
            <span className="text-teal-400">Apple One — HQ Tower</span>
            <span>•</span>
            <span>Operations</span>
            <span>•</span>
            <span>Help Desk</span>
          </div>
          <h1 className="text-2xl font-extrabold text-white tracking-tight mt-1.5">
            Help Desk & checklists
          </h1>
          <p className="text-sm font-medium text-slate-400 mt-1 max-w-xl leading-relaxed">
            Scheduled location and equipment inspections, missed-checklist recovery, and HSQE incident management.
          </p>
        </div>
      </div>

      <div>
        {/* Reusable Navigation Tabs */}
        <NavigationTabs
          tabs={helpdeskTtabs}
          activeTab={activeTab}
          onTabChange={setActiveTab}
          className="mb-4"
        />
      </div>

      <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-3 mb-4">
        {/* Total Checklists */}
        <StatCard 
          variant="icon" 
          title="Total checklists" 
          value="10" 
          icon={Layers} 
          badgeText="Location set" 
          badgeClassName="text-slate-500 lowercase font-mono"
          iconContainerClassName="bg-slate-800/60 border-slate-700/50 text-slate-300"
        />
        
        {/* Active */}
        <StatCard 
          variant="icon" 
          title="Active" 
          value="7" 
          icon={ShieldCheck} 
          badgeText="of 10" 
          badgeClassName="text-teal-400 font-mono font-medium"
          iconContainerClassName="bg-emerald-950/60 border-emerald-800/40 text-emerald-400"
        />

        {/* Approval Set */}
        <StatCard 
          variant="icon" 
          title="Approval set" 
          value="5" 
          icon={CheckSquare} 
          badgeText="workflow" 
          badgeClassName="text-slate-500 lowercase font-mono"
          iconContainerClassName="bg-amber-950/40 border-amber-800/30 text-amber-500"
        />
          
        {/* Avg TAT */}
        <StatCard 
          variant="icon" 
          title="Avg TAT" 
          value="40m" 
          icon={Clock} 
          badgeText="target" 
          badgeClassName="text-slate-500 lowercase font-mono"
          iconContainerClassName="bg-blue-950/50 border-blue-800/30 text-blue-400"
        />
      </div>

      {/* --- ROW 2: SEARCH, FILTERS & ACTION BUTTONS --- */}
      <div className="flex flex-col md:flex-row items-center justify-between gap-3 mb-4">
        {/* Search & Select Filters */}
        <div className="flex flex-1 flex-wrap items-center gap-2.5 w-full md:w-auto">
          {/* Search Bar */}
          <div className="relative flex-1 min-w-[200px] max-w-md">
            <Search size={16} className="absolute left-3 top-1/2 -translate-y-1/2 text-slate-400" />
            <input
              type="text"
              placeholder="Search location, block, department..."
              className="w-full bg-[#0b1727] border border-slate-800 rounded-lg pl-9 pr-3 py-1.5 text-xs text-slate-200 placeholder-slate-500 focus:outline-none focus:border-teal-500/50 transition-colors"
            />
          </div>

          {/* Block Dropdown */}
          <select className="bg-[#081321] border border-slate-800/80 rounded-lg px-3 py-1.5 text-xs font-semibold text-slate-200 cursor-pointer focus:outline-none focus:ring-2 focus:ring-[#2dd4bf] focus:ring-offset-2 focus:ring-offset-[#081321] transition-all">
            <option value="all">All blocks</option>
            <option value="block 1">Block 1</option>
            <option value="block 2">Block 2</option>
          </select>

          {/* Status Dropdown */}
          <select className="bg-[#081321] border border-transparent ring-2 ring-[#2dd4bf] ring-offset-2 ring-offset-[#081321] rounded-lg px-3 py-1.5 text-xs font-semibold text-slate-200 cursor-pointer focus:outline-none transition-all">
            <option value="all">All status</option>
            <option value="active">Active</option>
            <option value="inactive">InActive</option>
          </select>
        </div>

        {/* Action Buttons */}
        <div className="flex items-center gap-2 w-full md:w-auto justify-end">
          <Button className="flex items-center gap-1.5 bg-[#0b1727] hover:bg-slate-800/60 text-slate-200 border border-slate-800 rounded-lg px-3 py-1.5 text-xs font-semibold transition-colors">
            <QrCode size={14} />
            <span>All QR</span>
          </Button>

          <Button className="flex items-center gap-1.5 bg-teal-400 hover:bg-teal-300 text-slate-950 font-bold rounded-lg px-3.5 py-1.5 text-xs transition-colors">
            <Plus size={15} className="stroke-[3]" />
            <span>New Location Checklist</span>
          </Button>
        </div>
      </div>

      {/* --- TABLE CONTAINER --- */}
      <div className="mt-4 overflow-x-auto">
        <Table headers={headers} rows={rows} />
      </div>
    </div>
  );
}