/**
 * Help Dashboard Page
 *
 * Comprehensive help documentation for the Dashboard.
 */

import React from 'react';
import { useTranslation } from 'react-i18next';
import { useNavigate, Link } from 'react-router-dom';
import {
  ArrowLeft,
  LayoutDashboard,
  BarChart3,
  TrendingUp,
  Users,
  Calendar,
  Briefcase,
  ClipboardList,
  CheckCircle,
  ChevronRight,
  HelpCircle,
} from 'lucide-react';

const HelpDashboard: React.FC = () => {
  const { t } = useTranslation();
  const navigate = useNavigate();

  return (
    <div className="max-w-4xl mx-auto py-8 px-4">
      {/* Back Button */}
      <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} />
        {t('common.back', 'Back')}
      </button>

      {/* Header */}
      <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">
            <LayoutDashboard size={24} className="text-brand-600 dark:text-brand-400" />
          </div>
          <div>
            <h1 className="text-3xl font-bold text-gray-900 dark:text-white">
              Dashboard Guide
            </h1>
            <p className="text-gray-500 dark:text-gray-400">
              Your business at a glance
            </p>
          </div>
        </div>
      </div>

      {/* Overview Section */}
      <section className="mb-10">
        <h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-4 flex items-center gap-2">
          <BarChart3 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">
            The Dashboard is your command center for understanding your business performance. It provides real-time insights into appointments, customers, services, and resources, helping you make informed decisions quickly.
          </p>
          <p className="text-gray-600 dark:text-gray-300">
            All metrics update automatically as you add new appointments, register customers, and manage your business operations.
          </p>
        </div>
      </section>

      {/* Key Metrics Section */}
      <section className="mb-10">
        <h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-4 flex items-center gap-2">
          <TrendingUp size={20} className="text-brand-500" />
          Key Metrics
        </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">
            The Dashboard displays four primary metrics that give you an instant snapshot of your business:
          </p>
          <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">
              <Calendar size={20} className="text-blue-500 mt-0.5" />
              <div>
                <h4 className="font-medium text-gray-900 dark:text-white">Total Appointments</h4>
                <p className="text-sm text-gray-500 dark:text-gray-400">
                  The number of appointments in your system. Shows trend compared to previous period.
                </p>
              </div>
            </div>
            <div className="flex items-start gap-3 p-4 bg-gray-50 dark:bg-gray-700/50 rounded-lg">
              <Users size={20} className="text-green-500 mt-0.5" />
              <div>
                <h4 className="font-medium text-gray-900 dark:text-white">Active Customers</h4>
                <p className="text-sm text-gray-500 dark:text-gray-400">
                  Customers with "Active" status who can book appointments with your business.
                </p>
              </div>
            </div>
            <div className="flex items-start gap-3 p-4 bg-gray-50 dark:bg-gray-700/50 rounded-lg">
              <Briefcase size={20} className="text-purple-500 mt-0.5" />
              <div>
                <h4 className="font-medium text-gray-900 dark:text-white">Services</h4>
                <p className="text-sm text-gray-500 dark:text-gray-400">
                  The total number of services you offer. Click to manage your service catalog.
                </p>
              </div>
            </div>
            <div className="flex items-start gap-3 p-4 bg-gray-50 dark:bg-gray-700/50 rounded-lg">
              <ClipboardList size={20} className="text-orange-500 mt-0.5" />
              <div>
                <h4 className="font-medium text-gray-900 dark:text-white">Resources</h4>
                <p className="text-sm text-gray-500 dark:text-gray-400">
                  Staff, rooms, and equipment available for booking. Essential for scheduling.
                </p>
              </div>
            </div>
          </div>
        </div>
      </section>

      {/* Charts Section */}
      <section className="mb-10">
        <h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-4 flex items-center gap-2">
          <BarChart3 size={20} className="text-brand-500" />
          Analytics Charts
        </h2>
        <div className="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 p-6">
          <div className="space-y-6">
            <div>
              <h4 className="font-medium text-gray-900 dark:text-white mb-2">Weekly Revenue Chart</h4>
              <p className="text-sm text-gray-600 dark:text-gray-300">
                A bar chart showing revenue by day of the week. Helps identify your busiest and most profitable days. Calculated from appointment prices.
              </p>
            </div>
            <div>
              <h4 className="font-medium text-gray-900 dark:text-white mb-2">Weekly Appointments Chart</h4>
              <p className="text-sm text-gray-600 dark:text-gray-300">
                A line chart showing appointment counts by day. Useful for staffing decisions and understanding demand patterns throughout the week.
              </p>
            </div>
          </div>
        </div>
      </section>

      {/* Benefits 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" />
          Benefits
        </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">
                <strong>Quick Overview:</strong> See your entire business performance in seconds
              </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">
                <strong>Trend Tracking:</strong> Understand if your business is growing with percentage changes
              </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">
                <strong>Data-Driven Decisions:</strong> Use charts to identify patterns and optimize operations
              </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">
                <strong>Real-Time Updates:</strong> All metrics refresh automatically as your data changes
              </span>
            </li>
          </ul>
        </div>
      </section>

      {/* Related Features */}
      <section className="mb-10">
        <h2 className="text-xl font-semibold text-gray-900 dark:text-white mb-4">
          Related Features
        </h2>
        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
          <Link
            to="/help/scheduler"
            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"
          >
            <Calendar size={20} className="text-brand-500" />
            <span className="text-gray-900 dark:text-white">Scheduler Guide</span>
            <ChevronRight size={16} className="text-gray-400 ml-auto" />
          </Link>
          <Link
            to="/help/customers"
            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"
          >
            <Users size={20} className="text-brand-500" />
            <span className="text-gray-900 dark:text-white">Customers Guide</span>
            <ChevronRight size={16} className="text-gray-400 ml-auto" />
          </Link>
        </div>
      </section>

      {/* Need More Help */}
      <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">
          If you have questions that aren't covered here, our support team is ready to help.
        </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 HelpDashboard;
