/**
 * Help Settings Billing Page
 */

import React from 'react';
import { useNavigate, Link } from 'react-router-dom';
import {
  ArrowLeft, CreditCard, FileText, Clock, TrendingUp, Shield,
  CheckCircle, ChevronRight, HelpCircle, DollarSign,
} from 'lucide-react';

const HelpSettingsBilling: React.FC = () => {
  const navigate = useNavigate();

  return (
    <div className="max-w-4xl mx-auto py-8 px-4">
      <button onClick={() => navigate(-1)} className="flex items-center gap-2 text-brand-600 hover:text-brand-700 dark:text-brand-400 mb-6">
        <ArrowLeft size={20} /> Back
      </button>

      <div className="mb-8">
        <div className="flex items-center gap-3 mb-4">
          <div className="w-12 h-12 rounded-xl bg-brand-100 dark:bg-brand-900/30 flex items-center justify-center">
            <CreditCard size={24} className="text-brand-600 dark:text-brand-400" />
          </div>
          <div>
            <h1 className="text-3xl font-bold text-gray-900 dark:text-white">Billing Settings Guide</h1>
            <p className="text-gray-500 dark:text-gray-400">Manage your subscription and payments</p>
          </div>
        </div>
      </div>

      <section className="mb-10">
        <h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-4 flex items-center gap-2">
          <CreditCard size={20} className="text-brand-500" /> Overview
        </h2>
        <div className="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 p-6">
          <p className="text-gray-600 dark:text-gray-300 mb-4">
            Billing Settings let you manage your subscription plan, update payment methods, view invoices, and monitor your usage. Keep your account in good standing to maintain access to all features.
          </p>
        </div>
      </section>

      <section className="mb-10">
        <h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-4 flex items-center gap-2">
          <DollarSign size={20} className="text-brand-500" /> Subscription Management
        </h2>
        <div className="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 p-6">
          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
            <div className="flex items-start gap-3 p-4 bg-gray-50 dark:bg-gray-700/50 rounded-lg">
              <TrendingUp size={20} className="text-blue-500 mt-0.5" />
              <div>
                <h4 className="font-medium text-gray-900 dark:text-white">Current Plan</h4>
                <p className="text-sm text-gray-500 dark:text-gray-400">View your active subscription tier and features</p>
              </div>
            </div>
            <div className="flex items-start gap-3 p-4 bg-gray-50 dark:bg-gray-700/50 rounded-lg">
              <CreditCard size={20} className="text-green-500 mt-0.5" />
              <div>
                <h4 className="font-medium text-gray-900 dark:text-white">Payment Method</h4>
                <p className="text-sm text-gray-500 dark:text-gray-400">Update credit card or payment details</p>
              </div>
            </div>
            <div className="flex items-start gap-3 p-4 bg-gray-50 dark:bg-gray-700/50 rounded-lg">
              <FileText size={20} className="text-purple-500 mt-0.5" />
              <div>
                <h4 className="font-medium text-gray-900 dark:text-white">Invoices</h4>
                <p className="text-sm text-gray-500 dark:text-gray-400">Download past invoices and receipts</p>
              </div>
            </div>
            <div className="flex items-start gap-3 p-4 bg-gray-50 dark:bg-gray-700/50 rounded-lg">
              <Clock size={20} className="text-orange-500 mt-0.5" />
              <div>
                <h4 className="font-medium text-gray-900 dark:text-white">Billing Cycle</h4>
                <p className="text-sm text-gray-500 dark:text-gray-400">View next billing date and renewal info</p>
              </div>
            </div>
          </div>
        </div>
      </section>

      <section className="mb-10">
        <h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-4 flex items-center gap-2">
          <Shield size={20} className="text-brand-500" /> Plan Features
        </h2>
        <div className="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 p-6">
          <p className="text-gray-600 dark:text-gray-300 mb-4">
            Different plans unlock different features:
          </p>
          <div className="space-y-3">
            <div className="flex items-center gap-3 p-3 bg-gray-50 dark:bg-gray-700/50 rounded-lg">
              <span className="font-medium text-gray-900 dark:text-white">Free</span>
              <span className="text-sm text-gray-500 dark:text-gray-400">- Basic scheduling, limited resources</span>
            </div>
            <div className="flex items-center gap-3 p-3 bg-blue-50 dark:bg-blue-900/20 rounded-lg">
              <span className="font-medium text-gray-900 dark:text-white">Pro</span>
              <span className="text-sm text-gray-500 dark:text-gray-400">- More resources, custom branding, payments</span>
            </div>
            <div className="flex items-center gap-3 p-3 bg-purple-50 dark:bg-purple-900/20 rounded-lg">
              <span className="font-medium text-gray-900 dark:text-white">Business</span>
              <span className="text-sm text-gray-500 dark:text-gray-400">- Unlimited resources, API access, priority support</span>
            </div>
          </div>
        </div>
      </section>

      <section className="mb-10">
        <h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-4 flex items-center gap-2">
          <CheckCircle size={20} className="text-brand-500" /> Tips
        </h2>
        <div className="bg-gradient-to-r from-brand-50 to-blue-50 dark:from-brand-900/20 dark:to-blue-900/20 rounded-xl border border-brand-200 dark:border-brand-800 p-6">
          <ul className="space-y-3">
            <li className="flex items-start gap-2">
              <ChevronRight size={16} className="text-brand-500 mt-1 flex-shrink-0" />
              <span className="text-gray-700 dark:text-gray-300">Keep payment methods up to date to avoid service interruption</span>
            </li>
            <li className="flex items-start gap-2">
              <ChevronRight size={16} className="text-brand-500 mt-1 flex-shrink-0" />
              <span className="text-gray-700 dark:text-gray-300">Annual billing saves money compared to monthly</span>
            </li>
            <li className="flex items-start gap-2">
              <ChevronRight size={16} className="text-brand-500 mt-1 flex-shrink-0" />
              <span className="text-gray-700 dark:text-gray-300">Download invoices for your accounting records</span>
            </li>
          </ul>
        </div>
      </section>

      <section className="mb-10">
        <h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-4">Related Settings</h2>
        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
          <Link to="/help/settings/quota" className="flex items-center gap-3 p-4 bg-white dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 hover:border-brand-500 transition-colors">
            <TrendingUp size={20} className="text-brand-500" />
            <span className="text-gray-900 dark:text-white">Usage & Quota</span>
            <ChevronRight size={16} className="text-gray-400 ml-auto" />
          </Link>
          <Link to="/help/payments" className="flex items-center gap-3 p-4 bg-white dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 hover:border-brand-500 transition-colors">
            <DollarSign size={20} className="text-brand-500" />
            <span className="text-gray-900 dark:text-white">Payments Guide</span>
            <ChevronRight size={16} className="text-gray-400 ml-auto" />
          </Link>
        </div>
      </section>

      <section className="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 p-6 text-center">
        <HelpCircle size={32} className="mx-auto text-brand-500 mb-3" />
        <h3 className="text-lg font-semibold text-gray-900 dark:text-white mb-2">Need More Help?</h3>
        <p className="text-gray-600 dark:text-gray-300 mb-4">Our support team is ready to help with any questions.</p>
        <button onClick={() => navigate('/tickets')} className="px-6 py-2 bg-brand-600 text-white rounded-lg hover:bg-brand-700 transition-colors">Contact Support</button>
      </section>
    </div>
  );
};

export default HelpSettingsBilling;
