import React from 'react';
import { motion } from 'framer-motion';
import { GlassCard } from '@/components/ui/GlassCard';
import { Button } from '@/components/ui/button';
import { Progress } from '@/components/ui/progress';
import {
  Wallet,
  TrendingUp,
  Home,
  Car,
  Utensils,
  ShoppingCart,
  Target,
  ArrowRight,
  AlertCircle
} from 'lucide-react';
import { cn, formatCurrency } from '@/lib/utils';

// Mock Data
const budgetData = {
  limit: 15000,
  spent: 12500,
  categories: [
    { name: 'Housing', icon: Home, spent: 6500, limit: 7000, color: 'bg-blue-500' },
    { name: 'Food & Dining', icon: Utensils, spent: 2800, limit: 3000, color: 'bg-green-500' },
    { name: 'Transportation', icon: Car, spent: 1200, limit: 1500, color: 'bg-orange-500' },
    { name: 'Shopping', icon: ShoppingCart, spent: 2000, limit: 1500, color: 'bg-pink-500' }, // Over budget
  ],
  goals: [
    { name: 'Buy a House', target: 800000, current: 200000, color: 'bg-purple-500' },
    { name: 'Retirement', target: 2000000, current: 150000, color: 'bg-indigo-500' },
  ]
};

export default function BudgetManager() {
  const percentage = Math.min(100, (budgetData.spent / budgetData.limit) * 100);
  const circumference = 2 * Math.PI * 120; // Radius 120
  const strokeDashoffset = circumference - (percentage / 100) * circumference;

  return (
    <div className="max-w-6xl mx-auto space-y-8 pb-20 animate-fade-in">
      {/* Header */}
      <div className="flex flex-col sm:flex-row items-start sm:items-center justify-between gap-4">
        <div>
          <h1 className="text-2xl sm:text-3xl font-bold text-slate-900">Monthly Budget & Goals</h1>
          <p className="text-sm sm:text-base text-slate-500">Track your spending and save for the future.</p>
        </div>
        <Button className="w-full sm:w-auto gap-2 bg-slate-900 text-white hover:bg-slate-800 rounded-full">
          <Wallet className="w-4 h-4" /> Edit Budget
        </Button>
      </div>

      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6 sm:gap-8">
        {/* Main Budget Ring */}
        <GlassCard className="col-span-1 lg:col-span-1 flex flex-col items-center justify-center p-6 sm:p-8 relative overflow-hidden">
          <div className="relative w-64 h-64 sm:w-72 sm:h-72 flex items-center justify-center">
            {/* Background Circle */}
            <svg className="w-full h-full transform -rotate-90">
              <circle
                cx="50%"
                cy="50%"
                r="45%"
                stroke="currentColor"
                strokeWidth="24"
                fill="transparent"
                className="text-slate-100"
              />
              {/* Progress Circle */}
              <motion.circle
                initial={{ strokeDashoffset: circumference }}
                animate={{ strokeDashoffset }}
                transition={{ duration: 1.5, ease: "easeOut" }}
                cx="50%"
                cy="50%"
                r="45%"
                stroke="currentColor"
                strokeWidth="24"
                fill="transparent"
                strokeDasharray={circumference}
                strokeLinecap="round"
                className={cn(
                  "text-blue-500 drop-shadow-lg",
                  percentage > 90 ? "text-red-500" : percentage > 75 ? "text-orange-500" : "text-blue-500"
                )}
              />
            </svg>
            <div className="absolute flex flex-col items-center">
              <span className="text-xs sm:text-sm text-slate-500 font-medium uppercase tracking-wider">Total Spent</span>
              <span className="text-3xl sm:text-4xl font-bold text-slate-900 mt-1">
                {formatCurrency(budgetData.spent)}
              </span>
              <span className="text-xs sm:text-sm text-slate-400 mt-1">
                of {formatCurrency(budgetData.limit)}
              </span>
            </div>
          </div>
          {percentage > 90 && (
            <motion.div
              initial={{ opacity: 0, y: 10 }}
              animate={{ opacity: 1, y: 0 }}
              className="mt-6 flex items-center gap-2 text-red-600 bg-red-50 px-4 py-2 rounded-full border border-red-100"
            >
              <AlertCircle className="w-4 h-4" />
              <span className="text-sm font-medium">You've used {percentage.toFixed(0)}% of your budget!</span>
            </motion.div>
          )}
        </GlassCard>

        {/* Categories & Goals */}
        <div className="col-span-1 lg:col-span-2 space-y-8">
          {/* Categories Breakdown */}
          <GlassCard className="p-6">
            <h3 className="text-lg font-semibold mb-6 flex items-center gap-2">
              <Utensils className="w-5 h-5 text-slate-500" /> Category Breakdown
            </h3>
            <div className="space-y-6">
              {budgetData.categories.map((cat, index) => (
                <motion.div
                  key={cat.name}
                  initial={{ opacity: 0, x: -20 }}
                  animate={{ opacity: 1, x: 0 }}
                  transition={{ delay: index * 0.1 }}
                  className="space-y-2"
                >
                  <div className="flex justify-between items-center text-sm">
                    <div className="flex items-center gap-2">
                      <div className={cn("p-1.5 rounded-lg text-white", cat.color)}>
                        <cat.icon className="w-3.5 h-3.5" />
                      </div>
                      <span className="font-medium text-slate-700">{cat.name}</span>
                    </div>
                    <div className="flex items-center gap-2">
                      <span className="font-semibold">{formatCurrency(cat.spent)}</span>
                      <span className="text-slate-400">/ {formatCurrency(cat.limit)}</span>
                    </div>
                  </div>
                  <div className="h-2.5 bg-slate-100 rounded-full overflow-hidden">
                    <motion.div
                      initial={{ width: 0 }}
                      animate={{ width: `${Math.min(100, (cat.spent / cat.limit) * 100)}%` }}
                      transition={{ duration: 1, delay: 0.5 + (index * 0.1) }}
                      className={cn("h-full rounded-full", cat.color)}
                    />
                  </div>
                </motion.div>
              ))}
            </div>
          </GlassCard>

          {/* Long-term Goals */}
          <div>
            <h3 className="text-lg font-semibold mb-4 flex items-center gap-2">
              <Target className="w-5 h-5 text-slate-500" /> Long-term Planning
            </h3>
            <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
              {budgetData.goals.map((goal, index) => (
                <GlassCard key={goal.name} className="p-5 relative overflow-hidden group">
                  <div className="relative z-10">
                    <div className="flex justify-between items-start mb-4">
                      <div>
                        <h4 className="font-semibold text-slate-900">{goal.name}</h4>
                        <div className="bg-green-100 text-green-700 text-xs px-2 py-0.5 rounded-full inline-block mt-1 font-medium">
                          On Track
                        </div>
                      </div>
                      <div className={cn("p-2 rounded-xl text-white opacity-80", goal.color)}>
                        <Target className="w-5 h-5" />
                      </div>
                    </div>

                    <div className="space-y-2">
                      <div className="flex justify-between text-sm">
                        <span className="text-slate-500">Progress</span>
                        <span className="font-bold text-slate-900">{Math.round((goal.current / goal.target) * 100)}%</span>
                      </div>
                      <Progress value={(goal.current / goal.target) * 100} className="h-2" indicatorClassName={goal.color} />
                      <div className="flex justify-between text-xs text-slate-400 pt-1">
                        <span>{formatCurrency(goal.current)}</span>
                        <span>{formatCurrency(goal.target)}</span>
                      </div>
                    </div>
                  </div>

                  {/* Hover Effect Background */}
                  <div className={cn(
                    "absolute inset-0 opacity-0 group-hover:opacity-10 transition-opacity duration-500",
                    goal.color
                  )} />
                </GlassCard>
              ))}
            </div>
          </div>
        </div>
      </div>
    </div>
  );
}