import { useState } from 'react';
import { 
  BarChart2, 
  Check, 
  AlertTriangle, 
  Clock, 
  CheckCircle2, 
  Cpu 
} from "lucide-react";
import Button from "@/components/common/button";
import StatCard from "@/components/common/dashStatCard";

export default function AlarmRulesPortal() {
  // State for automation rules toggles
  const [autoWorkOrder, setAutoWorkOrder] = useState(true);
  const [escalateCriticals, setEscalateCriticals] = useState(true);
  const [offHoursSetpoint, setOffHoursSetpoint] = useState(true);
  const [filterPpmTask, setFilterPpmTask] = useState(false);

  return (
    <div className="my-15 text-slate-100 font-sans">
      {/* --- HEADER SECTION --- */}
      <div className="flex flex-col md:flex-row md:items-start md:justify-between gap-4 mb-6">
        <div>
          <div className="flex items-center gap-2 text-[10px] font-bold tracking-widest text-emerald-400 uppercase font-mono">
            <span>APPLE ONE — HQ TOWER</span>
            <span className="text-slate-500">•</span>
            <span className="text-slate-500">IOT</span>
            <span className="text-slate-500">•</span>
            <span className="text-slate-500">ALARMS & RULES</span>
          </div>
          <h1 className="text-2xl font-bold text-white tracking-tight mt-1">
            Alarms & automation rules
          </h1>
          <p className="text-sm font-medium text-slate-400 mt-2 max-w-xl leading-relaxed">
            Acknowledge live alarms, raise work orders in one click, and manage the automation rules that act on telemetry.
          </p>
        </div>

        {/* --- HEADER BUTTONS --- */}
        <div className="flex items-center gap-3 self-start md:mt-4">
          <Button className="bg-[#0e1c2e] hover:bg-slate-800 text-slate-200 border border-[#162942] text-xs px-4 py-2 rounded-lg flex items-center gap-2 font-semibold transition-colors">
            <BarChart2 className="w-4 h-4 text-slate-400" />
            <span>History</span>
          </Button>

          <Button className="bg-[#10b981] hover:bg-emerald-400 text-slate-950 font-bold text-xs px-4 py-2 rounded-lg flex items-center gap-2 transition-colors shadow-lg">
            <Check className="w-4 h-4 text-slate-950 stroke-[3]" />
            <span>Acknowledge all (3)</span>
          </Button>
        </div>
      </div>

      {/* --- STAT CARDS --- */}
      <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4 mb-6">
        {/* Card 1: Critical open */}
        <StatCard
          variant="icon"
          title="Critical open"
          value="2"
          icon={AlertTriangle}
          badgeText="act now"
          badgeClassName="text-rose-400 lowercase font-mono font-medium"
          iconContainerClassName="bg-rose-950/50 border-rose-800/30 text-rose-400"
        />

        {/* Card 2: Warnings open */}
        <StatCard
          variant="icon"
          title="Warnings open"
          value="1"
          icon={Clock}
          badgeText="review"
          badgeClassName="text-amber-400 lowercase font-mono font-medium"
          iconContainerClassName="bg-amber-950/50 border-amber-800/30 text-amber-400"
        />

        {/* Card 3: Acknowledged */}
        <StatCard
          variant="icon"
          title="Acknowledged"
          value="2"
          icon={CheckCircle2}
          badgeText="today"
          badgeClassName="text-emerald-400 lowercase font-mono font-medium"
          iconContainerClassName="bg-emerald-950/60 border-emerald-800/40 text-emerald-400"
        />

        {/* Card 4: Rules active */}
        <StatCard
          variant="icon"
          title="Rules active"
          value="3 / 4"
          icon={Cpu}
          badgeText="automation"
          badgeClassName="text-slate-400 lowercase font-mono font-medium"
          iconContainerClassName="bg-blue-950/60 border-blue-800/40 text-blue-400"
        />
      </div>

      {/* --- MAIN CONTENT GRID --- */}
      <div className="grid grid-cols-1 lg:grid-cols-12 gap-6">
        {/* --- LEFT SECTION: ALARMS LIST --- */}
        <div className="lg:col-span-7 bg-[#091322]/80 border border-slate-800/80 rounded-xl p-5 shadow-sm">
          <div className="mb-4">
            <h2 className="text-base font-bold text-white">Alarms</h2>
            <p className="text-xs font-mono text-slate-400 mt-0.5">live · newest first</p>
          </div>

          <div className="divide-y divide-slate-800/60">
            {/* Alarm Item 1 */}
            <div className="py-3.5 flex items-center justify-between gap-3">
              <div className="flex items-start gap-2.5 min-w-0">
                <span className="w-2 h-2 rounded-full bg-rose-500 shrink-0 mt-1.5" />
                <div className="min-w-0">
                  <p className="text-sm font-semibold text-slate-100 truncate">
                    <span className="text-teal-400 font-mono">CH-02</span>
                    {" · "}
                    <span>Condenser approach high — 4.2 K above design</span>
                  </p>
                  <p className="text-xs font-mono text-slate-400 mt-0.5">08:41 · open</p>
                </div>
              </div>
              <div className="flex items-center gap-2 shrink-0">
                <Button className="rounded-md border border-slate-700/60 bg-slate-900/40 px-3 py-1 text-xs font-medium text-slate-300 hover:bg-slate-800 hover:text-white transition">
                  Ack
                </Button>
                <Button className="rounded-md border border-slate-700/60 bg-slate-900/40 px-3 py-1 text-xs font-medium text-slate-300 hover:bg-slate-800 hover:text-white transition">
                  Work order
                </Button>
              </div>
            </div>

            {/* Alarm Item 2 */}
            <div className="py-3.5 flex items-center justify-between gap-3">
              <div className="flex items-start gap-2.5 min-w-0">
                <span className="w-2 h-2 rounded-full bg-amber-500 shrink-0 mt-1.5" />
                <div className="min-w-0">
                  <p className="text-sm font-semibold text-slate-100 truncate">
                    <span className="text-teal-400 font-mono">AHU-07</span>
                    {" · "}
                    <span>Filter ΔP beyond limit — replacement due</span>
                  </p>
                  <p className="text-xs font-mono text-slate-400 mt-0.5">08:12 · open</p>
                </div>
              </div>
              <div className="flex items-center gap-2 shrink-0">
                <Button className="rounded-md border border-slate-700/60 bg-slate-900/40 px-3 py-1 text-xs font-medium text-slate-300 hover:bg-slate-800 hover:text-white transition">
                  Ack
                </Button>
                <Button className="rounded-md border border-slate-700/60 bg-slate-900/40 px-3 py-1 text-xs font-medium text-slate-300 hover:bg-slate-800 hover:text-white transition">
                  Work order
                </Button>
              </div>
            </div>

            {/* Alarm Item 3 */}
            <div className="py-3.5 flex items-center justify-between gap-3">
              <div className="flex items-start gap-2.5 min-w-0">
                <span className="w-2 h-2 rounded-full bg-rose-500 shrink-0 mt-1.5" />
                <div className="min-w-0">
                  <p className="text-sm font-semibold text-slate-100 truncate">
                    <span className="text-teal-400 font-mono">CTL-14</span>
                    {" · "}
                    <span>Controller offline — no heartbeat for 30 min</span>
                  </p>
                  <p className="text-xs font-mono text-slate-400 mt-0.5">07:56 · open</p>
                </div>
              </div>
              <div className="flex items-center gap-2 shrink-0">
                <Button className="rounded-md border border-slate-700/60 bg-slate-900/40 px-3 py-1 text-xs font-medium text-slate-300 hover:bg-slate-800 hover:text-white transition">
                  Ack
                </Button>
                <Button className="rounded-md border border-slate-700/60 bg-slate-900/40 px-3 py-1 text-xs font-medium text-slate-300 hover:bg-slate-800 hover:text-white transition">
                  Work order
                </Button>
              </div>
            </div>

            {/* Alarm Item 4 */}
            <div className="py-3.5 flex items-center justify-between gap-3">
              <div className="flex items-start gap-2.5 min-w-0">
                <span className="w-2 h-2 rounded-full bg-amber-500 shrink-0 mt-1.5" />
                <div className="min-w-0">
                  <p className="text-sm font-semibold text-slate-100 truncate">
                    <span className="text-teal-400 font-mono">SNS-208</span>
                    {" · "}
                    <span>CO₂ trending up in open office L3 — 1,080 ppm</span>
                  </p>
                  <p className="text-xs font-mono text-slate-400 mt-0.5">07:30 · acknowledged</p>
                </div>
              </div>
              <div className="flex items-center gap-2 shrink-0">
                <Button className="rounded-md border border-slate-700/60 bg-slate-900/40 px-3 py-1 text-xs font-medium text-slate-300 hover:bg-slate-800 hover:text-white transition">
                  Work order
                </Button>
              </div>
            </div>

            {/* Alarm Item 5 */}
            <div className="py-3.5 flex items-center justify-between gap-3">
              <div className="flex items-start gap-2.5 min-w-0">
                <span className="w-2 h-2 rounded-full bg-blue-500 shrink-0 mt-1.5" />
                <div className="min-w-0">
                  <p className="text-sm font-semibold text-slate-100 truncate">
                    <span className="text-teal-400 font-mono">GW-01</span>
                    {" · "}
                    <span>Gateway reconnected after 90 s network drop</span>
                  </p>
                  <p className="text-xs font-mono text-slate-400 mt-0.5">06:58 · acknowledged</p>
                </div>
              </div>
              <div className="flex items-center gap-2 shrink-0">
                <Button className="rounded-md border border-slate-700/60 bg-slate-900/40 px-3 py-1 text-xs font-medium text-slate-300 hover:bg-slate-800 hover:text-white transition">
                  Work order
                </Button>
              </div>
            </div>
          </div>
        </div>

        {/* --- RIGHT SECTION: AUTOMATION RULES --- */}
        <div className="lg:col-span-5 bg-[#091322]/80 border border-slate-800/80 rounded-xl p-5 shadow-sm h-fit">
          <div className="mb-4">
            <h2 className="text-base font-bold text-white">Automation rules</h2>
            <p className="text-xs font-mono text-slate-400 mt-0.5">telemetry → action</p>
          </div>

          <div className="divide-y divide-slate-800/60">
            {/* Rule 1 */}
            <div className="py-3.5 flex items-center justify-between gap-4">
              <div>
                <h3 className="text-sm font-semibold text-slate-100">
                  Auto work order on critical alarm
                </h3>
                <p className="text-xs text-slate-400 mt-0.5">
                  Raises a Help Desk request with the asset and fault pre-filled
                </p>
              </div>
              <button
                type="button"
                onClick={() => setAutoWorkOrder(!autoWorkOrder)}
                className={`relative inline-flex h-6 w-11 shrink-0 cursor-pointer rounded-full border-2 border-transparent transition-colors duration-200 ease-in-out focus:outline-none ${
                  autoWorkOrder ? 'bg-[#2dd4bf]' : 'bg-slate-700'
                }`}
              >
                <span
                  className={`pointer-events-none inline-block h-5 w-5 transform rounded-full bg-slate-950 shadow ring-0 transition duration-200 ease-in-out ${
                    autoWorkOrder ? 'translate-x-5' : 'translate-x-0'
                  }`}
                />
              </button>
            </div>

            {/* Rule 2 */}
            <div className="py-3.5 flex items-center justify-between gap-4">
              <div>
                <h3 className="text-sm font-semibold text-slate-100">
                  Escalate unacknowledged criticals
                </h3>
                <p className="text-xs text-slate-400 mt-0.5">
                  Notifies the escalation matrix after 15 minutes
                </p>
              </div>
              <button
                type="button"
                onClick={() => setEscalateCriticals(!escalateCriticals)}
                className={`relative inline-flex h-6 w-11 shrink-0 cursor-pointer rounded-full border-2 border-transparent transition-colors duration-200 ease-in-out focus:outline-none ${
                  escalateCriticals ? 'bg-[#2dd4bf]' : 'bg-slate-700'
                }`}
              >
                <span
                  className={`pointer-events-none inline-block h-5 w-5 transform rounded-full bg-slate-950 shadow ring-0 transition duration-200 ease-in-out ${
                    escalateCriticals ? 'translate-x-5' : 'translate-x-0'
                  }`}
                />
              </button>
            </div>

            {/* Rule 3 */}
            <div className="py-3.5 flex items-center justify-between gap-4">
              <div>
                <h3 className="text-sm font-semibold text-slate-100">
                  Off-hours setpoint relaxation
                </h3>
                <p className="text-xs text-slate-400 mt-0.5">
                  Widens comfort bands 22:00–06:00 to save energy
                </p>
              </div>
              <button
                type="button"
                onClick={() => setOffHoursSetpoint(!offHoursSetpoint)}
                className={`relative inline-flex h-6 w-11 shrink-0 cursor-pointer rounded-full border-2 border-transparent transition-colors duration-200 ease-in-out focus:outline-none ${
                  offHoursSetpoint ? 'bg-[#2dd4bf]' : 'bg-slate-700'
                }`}
              >
                <span
                  className={`pointer-events-none inline-block h-5 w-5 transform rounded-full bg-slate-950 shadow ring-0 transition duration-200 ease-in-out ${
                    offHoursSetpoint ? 'translate-x-5' : 'translate-x-0'
                  }`}
                />
              </button>
            </div>

            {/* Rule 4 */}
            <div className="py-3.5 flex items-center justify-between gap-4">
              <div>
                <h3 className="text-sm font-semibold text-slate-100">
                  Filter ΔP → PPM task
                </h3>
                <p className="text-xs text-slate-400 mt-0.5">
                  Adds a filter change to the next PPM visit automatically
                </p>
              </div>
              <button
                type="button"
                onClick={() => setFilterPpmTask(!filterPpmTask)}
                className={`relative inline-flex h-6 w-11 shrink-0 cursor-pointer rounded-full border-2 border-transparent transition-colors duration-200 ease-in-out focus:outline-none ${
                  filterPpmTask ? 'bg-[#2dd4bf]' : 'bg-slate-800'
                }`}
              >
                <span
                  className={`pointer-events-none inline-block h-5 w-5 transform rounded-full bg-slate-300 shadow ring-0 transition duration-200 ease-in-out ${
                    filterPpmTask ? 'translate-x-5 bg-slate-950' : 'translate-x-0'
                  }`}
                />
              </button>
            </div>
          </div>
        </div>
      </div>
    </div>
  );
}