// src/views/Home/HomePage.tsx
// 首页 - 专业投资分析平台

import React, { useEffect, useCallback, useRef } from 'react';
import { Box, Container, VStack, SimpleGrid } from '@chakra-ui/react';
import { useNavigate } from 'react-router-dom';
import { useAuth } from '@/contexts/AuthContext';
import { usePostHogTrack } from '@/hooks/usePostHogRedux';
import { useHomeResponsive } from '@/hooks/useHomeResponsive';
import { ACQUISITION_EVENTS } from '@/lib/constants';
import { CORE_FEATURES } from '@/constants/homeFeatures';
import { performanceMonitor } from '@/utils/performanceMonitor';
import type { Feature } from '@/types/home';
import { HeroHeader } from './components/HeroHeader';
import { FeaturedFeatureCard } from './components/FeaturedFeatureCard';
import { FeatureCard } from './components/FeatureCard';
import MiniProgramLauncher from '@/components/MiniProgramLauncher';
import { isMobileDevice } from '@/components/MiniProgramLauncher/hooks/useWechatEnvironment';
import '@/styles/home-animations.css';

/**
 * 首页组件
 * 展示平台核心功能,引导用户探索各个功能模块
 */
const HomePage: React.FC = () => {
  const { user, isAuthenticated } = useAuth();
  const navigate = useNavigate();
  const { track } = usePostHogTrack();

  // ⚡ 性能标记：渲染开始（组件函数执行时，使用 ref 避免严格模式下重复标记）
  const hasMarkedStart = useRef(false);
  if (!hasMarkedStart.current) {
    performanceMonitor.mark('homepage-render-start');
    hasMarkedStart.current = true;
  }

  // 响应式配置
  const {
    headingSize,
    headingLetterSpacing,
    heroTextSize,
    containerPx,
  } = useHomeResponsive();

  // ⚡ 性能标记：渲染完成（DOM 已挂载）
  useEffect(() => {
    performanceMonitor.mark('homepage-render-end');
  }, []);

  // PostHog 追踪:页面浏览
  useEffect(() => {
    track(ACQUISITION_EVENTS.LANDING_PAGE_VIEWED, {
      timestamp: new Date().toISOString(),
      is_authenticated: isAuthenticated,
      user_id: user?.id || null,
    });
  }, [track, isAuthenticated, user?.id]);

  // 功能卡片点击处理
  const handleFeatureClick = useCallback((feature: Feature) => {
    // PostHog 追踪:功能卡片点击
    track(ACQUISITION_EVENTS.FEATURE_CARD_VIEWED, {
      feature_id: feature.id,
      feature_title: feature.title,
      feature_url: feature.url,
      is_featured: feature.featured || false,
      link_type: feature.url.startsWith('http') ? 'external' : 'internal',
    });

    // 导航处理
    if (feature.url.startsWith('http')) {
      window.open(feature.url, '_blank');
    } else {
      navigate(feature.url);
    }
  }, [track, navigate]);

  // 特色功能(第一个)
  const featuredFeature = CORE_FEATURES[0];
  // 其他功能
  const regularFeatures = CORE_FEATURES.slice(1);

  // 移动端判断（用于显示小程序入口）
  const isMobile = isMobileDevice();

  return (
    <Box minH="100%">
      {/* Hero Section - 深色科技风格，自适应容器高度 */}
      <Box
        position="relative"
        minH="100%"
        bg="linear-gradient(135deg, #0E0C15 0%, #15131D 50%, #252134 100%)"
        overflow="hidden"
      >

        <Container maxW="7xl" position="relative" px={containerPx}>
          <VStack
            spacing={{ base: 5, md: 8, lg: 10 }}
            align="stretch"
            py={{ base: 8, md: 10, lg: 12 }}
            justify="center"
          >
            {/* 主标题区域 */}
            <HeroHeader
              headingSize={headingSize}
              headingLetterSpacing={headingLetterSpacing}
              heroTextSize={heroTextSize}
            />

            {/* 核心功能面板 */}
            <Box pb={{ base: 5, md: 8 }}>
              <VStack spacing={{ base: 4, md: 5 }}>
                {/* 特色功能卡片 - 新闻中心 */}
                <FeaturedFeatureCard
                  feature={featuredFeature}
                  onClick={handleFeatureClick}
                />

                {/* 其他功能卡片 */}
                <SimpleGrid
                  columns={{ base: 1, md: 2, lg: 3 }}
                  spacing={{ base: 2, md: 3, lg: 4 }}
                  w="100%"
                >
                  {regularFeatures.map((feature) => (
                    <FeatureCard
                      key={feature.id}
                      feature={feature}
                      onClick={handleFeatureClick}
                    />
                  ))}
                </SimpleGrid>
              </VStack>
            </Box>
          </VStack>
        </Container>
      </Box>

      {/* 移动端右上角固定按钮 - 小程序入口 */}
      {isMobile && (
        <Box
          position="fixed"
          top="70px"
          right="16px"
          zIndex={1000}
        >
          <MiniProgramLauncher
            path="pages/index/index"
            forceLaunchMethod="urlScheme"
            buttonStyle={{
              backgroundColor: '#07c160',
              color: '#fff',
              padding: '8px 16px',
              fontSize: '14px',
              fontWeight: '500',
              borderRadius: '20px',
              boxShadow: '0 2px 8px rgba(7, 193, 96, 0.3)',
            }}
          >
            小程序
          </MiniProgramLauncher>
        </Box>
      )}
    </Box>
  );
};

export default HomePage;