"use client";
import React, { useState } from "react";
import { motion } from "motion/react";
import { 
  Package, 
  Truck, 
  CheckCircle2, 
  MapPin, 
  Search,
  ChevronRight,
  ChevronLeft,
  Clock,
  ExternalLink
} from "lucide-react";
import { useCartStore } from "../lib/store/cartStore";

import { useRouter } from 'next/navigation';

export default function OrderTracking() {
  const router = useRouter();
  const { orders } = useCartStore();
  const [searchId, setSearchId] = useState("");
  const [activeOrder, setActiveOrder] = useState(orders[0] || null);

  const handleSearch = () => {
    const found = orders.find(o => o.id === searchId || o.trackingNumber === searchId);
    if (found) {
      setActiveOrder(found);
    }
  };

  const steps = [
    { label: 'ثبت سفارش', sub: 'تایید شده', status: 'completed', icon: <Clock className="w-5 h-5" /> },
    { label: 'آماده‌سازی در انبار', sub: 'در حال بسته‌بندی', status: 'active', icon: <Package className="w-5 h-5" /> },
    { label: 'تحویل به پست/کوریر', sub: 'ارسال شده', status: 'pending', icon: <Truck className="w-5 h-5" /> },
    { label: 'تحویل نهایی', sub: 'در مقصد', status: 'pending', icon: <CheckCircle2 className="w-5 h-5" /> },
  ];

  return (
    <div className="min-h-screen bg-medical-gray-50 py-12 px-6 font-vazir" dir="rtl">
      <div className="max-w-5xl mx-auto">
        
        {/* Mobile Navigation & Breadcrumbs */}
        <div className="lg:hidden mb-12 space-y-4">
          <button 
            onClick={() => router.back()}
            className="flex items-center gap-2 text-medical-gray-500 font-bold hover:text-canina-blue transition-colors"
          >
            <ChevronRight className="w-5 h-5 font-vazir" />
            <span>بازگشت</span>
          </button>
          
          <div className="flex items-center gap-2 text-[10px] font-black text-medical-gray-400 uppercase tracking-widest overflow-x-auto whitespace-nowrap pb-2">
            <span className="cursor-pointer hover:text-canina-blue" onClick={() => router.push('/')}>کانینا</span>
            <ChevronLeft className="w-2.5 h-2.5" />
            <span className="text-canina-blue">پیگیری سفارش</span>
          </div>
        </div>

        {/* Desktop Breadcrumbs */}
        <div className="hidden lg:flex items-center gap-2 text-[10px] font-black text-medical-gray-400 uppercase tracking-widest mb-12">
           <span className="cursor-pointer hover:text-canina-blue" onClick={() => router.push('/')}>خانه</span>
           <ChevronLeft className="w-2.5 h-2.5" />
           <span className="text-canina-blue">رهگیری هوشمند محموله</span>
        </div>

        <div className="flex items-center justify-between mb-12">
          <h2 className="text-3xl font-black text-medical-gray-900 italic">وضعیت لحظه‌ای سفارش</h2>
        </div>

        {/* Search Bar */}
        <div className="bg-white rounded-[2.5rem] p-8 border border-medical-gray-200 shadow-sm mb-10">
          <div className="flex flex-col md:flex-row gap-4">
            <div className="flex-1 relative">
               <Search className="absolute right-4 top-1/2 -translate-y-1/2 w-5 h-5 text-medical-gray-400" />
               <input 
                 type="text" 
                 placeholder="شماره سفارش (CN-XXXXX) یا کد رهگیری پستی را وارد کنید..."
                 value={searchId}
                 onChange={(e) => setSearchId(e.target.value)}
                 className="w-full bg-medical-gray-50 border border-medical-gray-200 rounded-2xl py-4 pr-12 pl-6 text-sm focus:ring-2 focus:ring-canina-blue/20 outline-none font-mono"
               />
            </div>
            <button 
              onClick={handleSearch}
              className="bg-medical-gray-900 text-white px-10 py-4 rounded-2xl font-black italic hover:bg-canina-blue transition-all"
            >
              رهگیری آنی
            </button>
          </div>
        </div>

        {activeOrder ? (
          <div className="grid lg:grid-cols-12 gap-10">
            {/* Status Timeline */}
            <div className="lg:col-span-8 bg-white rounded-[3rem] p-10 border border-medical-gray-200 shadow-sm">
                <div className="flex items-center justify-between mb-12">
                   <div>
                      <p className="text-[10px] font-black text-medical-gray-400 uppercase tracking-widest mb-1">کد رهگیری پستی</p>
                      <p className="text-sm font-mono font-bold text-canina-blue">{activeOrder.trackingNumber}</p>
                   </div>
                   <div className="text-left">
                      <p className="text-[10px] font-black text-medical-gray-400 uppercase tracking-widest mb-1">تاریخ ثبت</p>
                      <p className="text-sm font-bold text-medical-gray-900">{new Date(activeOrder.date).toLocaleDateString('fa-IR')}</p>
                   </div>
                </div>

                <div className="relative space-y-12 pr-6">
                   <div className="absolute top-0 right-[23px] bottom-0 w-0.5 bg-medical-gray-100" />
                   
                   {steps.map((step, i) => (
                     <div key={i} className={`relative flex items-center gap-8 ${step.status === 'pending' ? 'opacity-30' : ''}`}>
                        <div className={`w-12 h-12 rounded-2xl flex items-center justify-center z-10 shadow-sm transition-all ${step.status === 'completed' ? 'bg-green-600 text-white' : step.status === 'active' ? 'bg-canina-blue text-white ring-8 ring-canina-blue/10 scale-110' : 'bg-medical-gray-50 text-medical-gray-300 border border-medical-gray-100'}`}>
                           {step.status === 'completed' ? <CheckCircle2 className="w-6 h-6" /> : step.icon}
                        </div>
                        <div>
                           <h4 className="font-black text-medical-gray-900">{step.label}</h4>
                           <p className="text-xs font-bold text-medical-gray-500">{step.sub}</p>
                        </div>
                     </div>
                   ))}
                </div>
            </div>

            {/* Sidebar Details */}
            <div className="lg:col-span-4 space-y-6">
                <div className="bg-medical-gray-900 rounded-[2.5rem] p-8 text-white">
                   <h3 className="text-lg font-black italic mb-6 border-b border-white/10 pb-4">محتویات محموله</h3>
                   <div className="space-y-4">
                      {activeOrder.items.map(item => (
                        <div key={item.product.id} className="flex justify-between items-center text-xs font-bold">
                           <span className="text-white/60">{item.product.name}</span>
                           <span>{item.quantity} عدد</span>
                        </div>
                      ))}
                   </div>
                   <div className="mt-8 pt-6 border-t border-white/10 flex justify-between items-center font-black">
                      <span className="text-xs italic">مجموع فاکتور</span>
                      <span className="text-lg text-canina-blue">{activeOrder.total.toLocaleString()} تومان</span>
                   </div>
                </div>

                <div className="bg-white rounded-[2rem] p-6 border border-medical-gray-200">
                   <div className="flex items-center gap-3 mb-4">
                      <div className="w-10 h-10 bg-canina-blue/10 text-canina-blue rounded-xl flex items-center justify-center">
                         <MapPin className="w-5 h-5" />
                      </div>
                      <h4 className="text-xs font-black italic">آدرس تحویل</h4>
                   </div>
                   <p className="text-[10px] font-bold text-medical-gray-500 leading-relaxed mb-4">
                      تهران، خیابان ولیعصر، بالاتر از میدان ونک، بن‌بست آفتاب، پلاک ۱۲، واحد ۳
                   </p>
                   <button className="w-full py-3 bg-medical-gray-50 text-medical-gray-900 rounded-xl text-[10px] font-black flex items-center justify-center gap-2 hover:bg-medical-gray-100 transition-all">
                      <ExternalLink className="w-3 h-3" />
                      مشاهده در نقشه
                   </button>
                </div>
            </div>
          </div>
        ) : (
          <div className="text-center py-20 bg-white rounded-[3rem] border border-dashed border-medical-gray-200">
             <div className="w-20 h-20 bg-medical-gray-50 rounded-full flex items-center justify-center mx-auto mb-6 text-medical-gray-300">
                <Package className="w-10 h-10" />
             </div>
             <p className="text-medical-gray-500 font-bold">سفارشی یافت نشد. لطفاً شماره سفارش صحیح را وارد کنید.</p>
          </div>
        )}
      </div>
    </div>
  );
}