import React, { useCallback, useState, useRef, useEffect, useMemo } from "react";
import {
  View,
  Text,
  StyleSheet,
  TouchableOpacity,
  FlatList,
  InteractionManager,
  Image,
  ScrollView,
  Modal,
  RefreshControl,
  Dimensions,
  Animated,
  Platform,
  StatusBar,
  SafeAreaView,
  ViewStyle,
  TextStyle,
  ImageStyle,
  Linking,
  Alert,
} from "react-native";
import {
  productApi,
  ProductParams,
  type Product,
} from "../services/api/productApi";
import Carousel from "react-native-reanimated-carousel";
import Ionicons from "@expo/vector-icons/Ionicons";
import { useNavigation } from "@react-navigation/native";
import { NativeStackNavigationProp } from "@react-navigation/native-stack";
import { useTranslation } from "react-i18next";
import widthUtils from "../utils/widthUtils";
import DownArrowIcon from "../components/DownArrowIcon";
import { LinearGradient } from "expo-linear-gradient";
import fontSize from "../utils/fontsizeUtils";
import CloseIcon from "../components/CloseIcon";
import CheckmarkIcon from "../components/CheckmarkIcon";
import { getSubjectTransLanguage } from "../utils/languageUtils";
import useUserStore from "../store/user";
import * as ImagePicker from "expo-image-picker";
import * as FileSystem from "expo-file-system";
import { useGlobalStore } from "../store/useGlobalStore";
import { getCurrentLanguage } from '../i18n';
// 为图标定义类型
type IconProps = {
  name: string;
  size: number;
  color: string;
};
// 图标组件辅助函数 - 使用React.memo优化渲染
const IconComponent = React.memo(({ name, size, color }: IconProps) => {
  const Icon = Ionicons as any;
  return <Icon name={name} size={size} color={color} />;
});
type SubcategoryItem = {
  id: string | number;
  title: string;
  icon: string;
};
type CategoryContentType = {
  [key: string]: SubcategoryItem[];
};

// 懒加载图片组件 - 改进版本
const LazyImage = React.memo(
  ({
    uri,
    style,
    resizeMode,
  }: {
    uri: string;
    style: any;
    resizeMode: any;
  }) => {
    const [isLoaded, setIsLoaded] = useState(false);
    const [hasError, setHasError] = useState(false);

    const onLoad = useCallback(() => {
      setIsLoaded(true);
    }, []);

    const onError = useCallback(() => {
      setHasError(true);
      setIsLoaded(true); // Also mark as loaded on error to remove placeholder
    }, []);

    return (
      <View style={[style, { overflow: "hidden" }]}>
        {/* Show placeholder while image is loading */}
        {!isLoaded && !hasError && (
          <View
            style={[
              style,
              styles.imagePlaceholder,
              { position: "absolute", zIndex: 1 },
            ]}
          />
        )}

        {/* Show error state if image failed to load */}
        {hasError && (
          <View
            style={[
              style,
              styles.imagePlaceholder,
              { position: "absolute", zIndex: 1 },
            ]}
          >
            <IconComponent name="image-outline" size={24} color="#999" />
            <Text
              style={{ fontSize: fontSize(12), color: "#999", marginTop: 4 }}
            >
              加载失败
            </Text>
          </View>
        )}

        {/* Actual image */}
        <Image
          source={{ uri }}
          style={[style, { opacity: isLoaded ? 1 : 0 }]}
          resizeMode={resizeMode}
          onLoad={onLoad}
          onError={onError}
        />
      </View>
    );
  }
);

// 产品骨架屏组件 - 用于加载状态
const ProductSkeleton = React.memo(() => {
  // 创建动画值
  const shimmerAnim = useRef(new Animated.Value(0)).current;

  // 设置动画效果
  useEffect(() => {
    const shimmerAnimation = Animated.loop(
      Animated.timing(shimmerAnim, {
        toValue: 1,
        duration: 1500,
        useNativeDriver: true,
      })
    );

    shimmerAnimation.start();

    return () => {
      shimmerAnimation.stop();
    };
  }, []);

  // 定义动画插值
  const shimmerTranslate = shimmerAnim.interpolate({
    inputRange: [0, 1],
    outputRange: [-200, 200],
  });

  return (
    <View style={styles.beautyProductCard1}>
      <View style={styles.skeletonImage}>
        <Animated.View
          style={[
            styles.shimmer,
            {
              transform: [{ translateX: shimmerTranslate }],
            },
          ]}
        />
      </View>
      <View style={styles.beautyProductCard}>
        <View style={styles.skeletonTitle}>
          <Animated.View
            style={[
              styles.shimmer,
              {
                transform: [{ translateX: shimmerTranslate }],
              },
            ]}
          />
        </View>
        <View style={[styles.skeletonTitle, { width: "60%" }]}>
          <Animated.View
            style={[
              styles.shimmer,
              {
                transform: [{ translateX: shimmerTranslate }],
              },
            ]}
          />
        </View>
        <View style={styles.beautyProductInfoRow}>
          <View style={styles.flexRowCentered}>
            <View style={styles.skeletonPrice}>
              <Animated.View
                style={[
                  styles.shimmer,
                  {
                    transform: [{ translateX: shimmerTranslate }],
                  },
                ]}
              />
            </View>
          </View>
        </View>
        <View style={styles.skeletonSales}>
          <Animated.View
            style={[
              styles.shimmer,
              {
                transform: [{ translateX: shimmerTranslate }],
              },
            ]}
          />
        </View>
      </View>
    </View>
  );
});

// Define the styles type to fix TypeScript errors
type StylesType = {
  safeArea: ViewStyle;
  safeAreaContent: ViewStyle;
  container: ViewStyle;
  swpImg: ImageStyle;
  searchOverlay: ViewStyle;
  searchBar: ViewStyle;
  searchPlaceholder: TextStyle;
  cameraButton: ViewStyle;
  bannerContainer: ViewStyle;
  leftContainer: ViewStyle;
  leftTopItem: ViewStyle;
  leftBottomItem: ViewStyle;
  rightContainer: ViewStyle;
  bannerIcon: ImageStyle;
  bigbannerIcon: ImageStyle;
  category: ViewStyle;
  categoryScrollContainer: ViewStyle;
  categoryScroll: ViewStyle;
  categoryItem: ViewStyle;
  categoryItemActive: ViewStyle;
  categoryText: TextStyle;
  categoryTextActive: TextStyle;
  swiperContainer: ViewStyle;
  swiper: ViewStyle;
  dot: ViewStyle;
  activeDot: ViewStyle;
  slide: ViewStyle;
  slideImage: ImageStyle;
  fadeGradient: ViewStyle;
  categoryArrowContainer: ViewStyle;
  modalOverlay: ViewStyle;
  modalContent: ViewStyle;
  modalHeader: ViewStyle;
  modalTitleContainer: ViewStyle;
  modalTitle: TextStyle;
  closeButton: ViewStyle;
  closeButtonText: TextStyle;
  modalScrollView: ViewStyle;
  categoryModalItem: ViewStyle;
  categoryModalText: TextStyle;
  selectedCategoryText: TextStyle;
  subcategoryContainer: ViewStyle;
  subcategoryScroll: ViewStyle;
  subcategoryContent: ViewStyle;
  subcategoryItem: ViewStyle;
  subcategoryImagePlaceholder: ViewStyle;
  subcategoryText: TextStyle;
  productContainer: ViewStyle;
  productCardList: ViewStyle;
  productCardGroup: ViewStyle;
  beautyProductCard1: ViewStyle;
  beautyCardContainer1: ViewStyle;
  vipButtonContainer: ViewStyle;
  vipButton: ViewStyle;
  vipButtonText: TextStyle;
  vipLabelBold: TextStyle;
  beautyProductCard: ViewStyle;
  beautyProductTitle: TextStyle;
  beautyProductInfoRow: ViewStyle;
  flexRowCentered: ViewStyle;
  priceContainer: ViewStyle;
  highlightedText: TextStyle;
  highlightedText1: TextStyle;
  priceContainer1: ViewStyle;
  priceLabel1: TextStyle;
  beautySalesInfo: TextStyle;
  indicatorContainer: ViewStyle;
  indicator: ViewStyle;
  activeIndicator: ViewStyle;
  inactiveIndicator: ViewStyle;
  skeletonContainer: ViewStyle;
  skeletonImage: ViewStyle;
  skeletonTitle: ViewStyle;
  skeletonPrice: ViewStyle;
  skeletonSales: ViewStyle;
  shimmer: ViewStyle;
  imagePlaceholder: ViewStyle;
  productImage: ImageStyle;
  imagePickerOverlay: ViewStyle;
  imagePickerContent: ViewStyle;
  imagePickerOption: ViewStyle;
  imagePickerText: TextStyle;
  imagePickerDivider: ViewStyle;
  imagePickerCancelButton: ViewStyle;
  imagePickerCancelText: TextStyle;
};

export const HomeScreen = () => {
  const [activeIndex, setActiveIndex] = useState(0);
  const screenWidth = Dimensions.get("window").width;
  const navigation = useNavigation<NativeStackNavigationProp<any>>();
  const { t } = useTranslation();
  const [showCategoryModal, setShowCategoryModal] = useState(false);
  const [showImagePickerModal, setShowImagePickerModal] = useState(false);
  const [selectedCategory, setSelectedCategory] = useState("Bijoux");
  const [selectedHorizontalCategory, setSelectedHorizontalCategory] = useState("Tous");
  const userStore = useUserStore();
  const { country, currency } = useGlobalStore();
  const flatListRef = useRef<FlatList>(null);
  const horizontalScrollRef = useRef<ScrollView>(null);
  const data = [
    {
      imgUrl: require("../../assets/img/banner en (5)_compressed.png"),
      add: "TikTokScreen",
    },
    {
      imgUrl: require("../../assets/img/banner en (3)_compressed.png"),
      add: "MemberIntroduction",
    },
    {
      imgUrl: require("../../assets/img/banner en (4)_compressed.png"),
      add: "CompanyScreen",
    },
  ];
  const [galleryUsed, setGalleryUsed] = useState(false);
  const [hotTerms, setHotTerms] = useState<string[]>([]);
  const [isLoadingHotTerms, setIsLoadingHotTerms] = useState(false);

  // 直接在组件中实现分页加载逻辑
  const [products, setProducts] = useState<Product[]>([]);
  const [loading, setLoading] = useState(true);
  const [loadingMore, setLoadingMore] = useState(false);
  const [hasMore, setHasMore] = useState(true);
  const [refreshing, setRefreshing] = useState(false);
  const [currentPage, setCurrentPage] = useState(1);
  const [loadingPlaceholders, setLoadingPlaceholders] = useState(0);
  const [totalItems, setTotalItems] = useState(0);
  const [params, setParams] = useState<ProductParams>({
    keyword: "pen", // 初始关键词，将在获取热门关键词后更新
    sort_order: "desc",
    sort_by: "default",
    language: getCurrentLanguage(),
    page: 1,
    page_size: 10,
    ...(userStore.user?.user_id ? { user_id: userStore.user.user_id } : {}),
  });
  
  // 获取热门关键词并初始化产品列表
  useEffect(() => {
    const initApp = async () => {
      try {
        // 获取热门关键词
        const response = await productApi.getHotTerms();
        const terms = response.terms || [];
        setHotTerms(terms);
        
        // 如果获取到了热门关键词，使用随机关键词
        if (terms.length > 0) {
          const randomIndex = Math.floor(Math.random() * terms.length);
          const randomKeyword = terms[randomIndex];
          
          // 更新参数
          setParams(prev => ({
            ...prev,
            keyword: randomKeyword
          }));
          
          // 获取第一页数据
          await fetchInitialProducts(randomKeyword);
        } else {
          // 如果没有热门关键词，使用默认关键词"pen"
          await fetchInitialProducts("pen");
        }
      } catch (error) {
        console.error("初始化失败:", error);
        // 出错时使用默认关键词
        await fetchInitialProducts("pen");
      }
    };
    
    initApp();
  }, []);
  
  // 获取随机关键词
  const getRandomKeyword = useCallback(() => {
    if (hotTerms.length === 0) return "pen";
    const randomIndex = Math.floor(Math.random() * hotTerms.length);
    const keyword = hotTerms[randomIndex];
    console.log("获取随机关键词:", keyword);
    return keyword;
  }, [hotTerms]);
  
  // 获取初始产品数据（第一页及额外的三页）
  const fetchInitialProducts = useCallback(async (keyword: string) => {
    setLoading(true);
    
    try {
      // 第一页请求参数
      const initialParams = {
        ...params,
        keyword,
        page: 1,
        page_size: 10
      };
      
      // 获取第一页数据
      const firstPageRes = await productApi.getSearchProducts(initialParams);
      setProducts(firstPageRes.products);
      setTotalItems(firstPageRes.total || 0);
      
      if (hotTerms.length > 0) {
        // 存储已使用的关键词，避免重复
        const usedKeywords = new Set([keyword]);
        
        // 创建获取唯一关键词的函数
        const getUniqueKeyword = () => {
          // 如果热门关键词数量不足，或者已经用完所有关键词，返回随机关键词
          if (hotTerms.length <= usedKeywords.size || hotTerms.length <= 1) {
            return hotTerms[Math.floor(Math.random() * hotTerms.length)];
          }
          
          // 尝试获取未使用过的关键词
          let attempts = 0;
          while (attempts < 10) { // 最多尝试10次
            const randomIndex = Math.floor(Math.random() * hotTerms.length);
            const candidateKeyword = hotTerms[randomIndex];
            
            if (!usedKeywords.has(candidateKeyword)) {
              usedKeywords.add(candidateKeyword);
              return candidateKeyword;
            }
            
            attempts++;
          }
          
          // 如果无法找到唯一关键词，返回随机关键词
          return hotTerms[Math.floor(Math.random() * hotTerms.length)];
        };
        
        // 使用不同关键词加载额外的3页数据
        const remainingRequests = Array.from({ length: 3 }, async (_, index) => {
          // 获取唯一的随机关键词
          const pageKeyword = getUniqueKeyword();
          const pageParams = {
            ...params,
            keyword: pageKeyword,
            page: index + 2,
            page_size: 10
          };
          return productApi.getSearchProducts(pageParams);
        });
        
        // 并行获取额外数据
        const additionalResults = await Promise.all(remainingRequests);
        const additionalProducts = additionalResults.flatMap(result => result.products);
        
        // 合并所有产品
        setProducts(prev => [...prev, ...additionalProducts]);
        setCurrentPage(4);
        setHasMore(firstPageRes.products.length + additionalProducts.length < (firstPageRes.total || 0));
      } else {
        // 如果没有热门关键词，只使用第一页数据
        setCurrentPage(1);
        setHasMore(firstPageRes.products.length < (firstPageRes.total || 0));
      }
    } catch (error) {
      console.error("获取产品数据失败:", error);
    } finally {
      setLoading(false);
    }
  }, [params, hotTerms]);
  
  // 加载更多产品
  const handleLoadMore = useCallback(() => {
    if (!hasMore || loadingMore || hotTerms.length === 0) return;
    
    setLoadingMore(true);
    setLoadingPlaceholders(10);
    
    // 使用新的随机关键词
    const newKeyword = getRandomKeyword();
    
    // 准备请求参数
    const loadMoreParams = {
      ...params,
      keyword: newKeyword,
      page: currentPage + 1,
      page_size: 10
    };
    
    // 获取下一页数据
    productApi.getSearchProducts(loadMoreParams)
      .then(res => {
        setProducts(prev => [...prev, ...res.products]);
        setCurrentPage(prev => prev + 1);
        setHasMore((products.length + res.products.length) < (res.total || 0));
      })
      .catch(error => {
        console.error("加载更多失败:", error);
      })
      .finally(() => {
        setLoadingMore(false);
        setLoadingPlaceholders(0);
      });
  }, [hasMore, loadingMore, hotTerms, getRandomKeyword, params, currentPage, products.length]);
  
  // 刷新产品列表
  const handleRefresh = useCallback(async () => {
    if (hotTerms.length === 0) return;
    
    setRefreshing(true);
    
    try {
      // 使用新的随机关键词
      const refreshKeyword = getRandomKeyword();
      console.log("刷新，使用关键词:", refreshKeyword);
      
      // 重新获取初始数据
      await fetchInitialProducts(refreshKeyword);
    } catch (error) {
      console.error("刷新失败:", error);
    } finally {
      setRefreshing(false);
    }
  }, [hotTerms, getRandomKeyword, fetchInitialProducts]);

  const handleProductPress = useCallback(
    (item: Product) => {
      InteractionManager.runAfterInteractions(() => {
        navigation.navigate("ProductDetail", {
          offer_id: item.offer_id,
          searchKeyword: params.keyword,
          price: item.min_price,
        });
      });
    },
    [navigation]
  );

  const categories = [
    "Tous",
    "Bijoux",
    "Maison et Cuisine",
    "Vêtements femme",
    "Grandes tailles femme",
    "Chaussures femme",
    "Pyjamas et Sous-vête-ments",
    "Accessoires beauté",
    "Soins cheveux",
    "Hygiène et Soins pour le corps",
    "Maquillage",
  ];

  const defaultSubcategories: SubcategoryItem[] = [
    { id: 1, title: "Jewelry", icon: "diamond-outline" },
    { id: 2, title: "Earrings", icon: "ear-outline" },
    { id: 3, title: "Bracelet", icon: "watch-outline" },
    { id: 4, title: "Jewelry Sets", icon: "gift-outline" },
    { id: 5, title: "Earrings", icon: "ear-outline" },
    { id: 6, title: "Bracelet", icon: "watch-outline" },
  ];

  const categoryContent: CategoryContentType = {
    Tous: [],
    Bijoux: defaultSubcategories,
    "Maison et Cuisine": defaultSubcategories,
    "Vêtements femme": defaultSubcategories,
    "Grandes tailles femme": defaultSubcategories,
    "Chaussures femme": defaultSubcategories,
    "Pyjamas et Sous-vête-ments": defaultSubcategories,
    "Accessoires beauté": defaultSubcategories,
    "Soins cheveux": defaultSubcategories,
    "Hygiène et Soins pour le corps": defaultSubcategories,
    Maquillage: defaultSubcategories,
  };

  useEffect(() => {
    if (!categoryContent[selectedHorizontalCategory]) {
      setSelectedHorizontalCategory("Tous");
    }
  }, [selectedHorizontalCategory]);

  const navigateToSearch = useCallback(() => {
    InteractionManager.runAfterInteractions(() => {
      navigation.navigate("Search");
    });
  }, [navigation]);

  const navigateToShippingDetails = useCallback(() => {
    InteractionManager.runAfterInteractions(() => {
      navigation.navigate("ShippingDetailsSection");
    });
  }, [navigation]);

  const navigateToInquiry = useCallback(() => {
    InteractionManager.runAfterInteractions(() => {
      navigation.navigate("InquiryScreen");
    });
  }, [navigation]);

  const scrollToCategory = (category: string) => {
    const categoryIndex = categories.findIndex((c) => c === category);
    if (categoryIndex !== -1 && horizontalScrollRef.current) {
      const firstFourKeys = Object.keys(categoryContent).slice(0, categoryIndex - 1);
      let str = "";
      firstFourKeys.forEach((key) => {
        str += key;
      });
      horizontalScrollRef.current.scrollTo({
        x: str.length * fontSize(16) + (categoryIndex - 1 + 17),
        animated: true,
      });
    }
  };

  const renderProductItem = ({ item }: { item: Product }) => (
    <TouchableOpacity
      onPress={() => handleProductPress(item)}
      activeOpacity={0.9}
      style={styles.beautyProductCard1}
    >
      <View style={styles.beautyCardContainer1}>
        {item.product_image_urls && item.product_image_urls.length > 0 ? (
          <LazyImage
            uri={item.product_image_urls[0]}
            style={styles.productImage}
            resizeMode="cover"
          />
        ) : (
          <View style={[styles.productImage as any, styles.imagePlaceholder]}>
            <IconComponent name="image-outline" size={24} color="#999" />
          </View>
        )}

        {userStore.user?.user_id && (
          <View style={styles.vipButtonContainer}>
            <TouchableOpacity style={styles.vipButton}>
              <Text style={styles.vipButtonText}>VIP</Text>
              <Text style={styles.vipLabelBold}>{userStore.user?.vip_level}</Text>
            </TouchableOpacity>
          </View>
        )}
      </View>
      <View style={styles.beautyProductCard}>
        <Text style={styles.beautyProductTitle} numberOfLines={2} ellipsizeMode="tail">
          {getSubjectTransLanguage(item) || item.subject_trans}
        </Text>
        <View style={styles.beautyProductInfoRow}>
          <View style={styles.flexRowCentered}>
            {userStore.user?.user_id && (
              <Text style={styles.priceLabel1}>
                {item.original_min_price || "0"}
                {item.currency || "FCFA"}
              </Text>
            )}
            <View style={styles.priceContainer}>
              <Text style={styles.highlightedText}>{item.min_price || "0"}</Text>
              <Text style={styles.highlightedText1}>{item.currency || "FCFA"}</Text>
            </View>
          </View>
        </View>
        <Text style={styles.beautySalesInfo}>{item.sold_out || "0"}+ {t("homePage.sales")}</Text>
      </View>
    </TouchableOpacity>
  );

  const renderSkeletonGrid = useCallback(() => {
    const skeletonArray = Array(8).fill(null);
    return (
      <View style={styles.skeletonContainer}>
        <FlatList
          data={skeletonArray}
          renderItem={() => <ProductSkeleton />}
          keyExtractor={(_, index) => `skeleton-${index}`}
          numColumns={2}
          columnWrapperStyle={styles.productCardGroup}
          scrollEnabled={false}
          contentContainerStyle={{ paddingBottom: 15 }}
        />
      </View>
    );
  }, []);

  const cleanupImagePickerCache = async () => {
    try {
      if (Platform.OS === 'web') {
        console.log('Cache cleanup skipped on web platform');
        setGalleryUsed(false);
        return;
      }
      
      const cacheDir = `${FileSystem.cacheDirectory}ImagePicker`;
      await FileSystem.deleteAsync(cacheDir, { idempotent: true });
      console.log("已清理ImagePicker缓存");
      setGalleryUsed(false);
    } catch (error) {
      console.log("清理缓存错误", error);
      setGalleryUsed(false);
    }
  };

  const handleChooseFromGallery = useCallback(async () => {
    setShowImagePickerModal(false);
    setTimeout(async () => {
      try {
        const permissionResult = await ImagePicker.requestMediaLibraryPermissionsAsync();
        if (permissionResult.status !== "granted") {
          console.log("相册权限被拒绝");
          return;
        }

        const result = await ImagePicker.launchImageLibraryAsync({
          mediaTypes: ImagePicker.MediaTypeOptions.Images,
          allowsEditing: true,
          aspect: [4, 3],
          quality: 1,
        });

        if (!result.canceled && result.assets && result.assets.length > 0) {
          await cleanupImagePickerCache();
          navigation.navigate("ImageSearchResultScreen", {
            image: result.assets[0].uri,
            type: 1,
          });
        }
      } catch (error) {
        console.error("相册错误:", error);
        await cleanupImagePickerCache();
      }
    }, 500);
  }, []);

  const handleTakePhoto = useCallback(async () => {
    setShowImagePickerModal(false);
    setTimeout(async () => {
      try {
        const permissionResult = await ImagePicker.requestCameraPermissionsAsync();
        if (permissionResult.status !== "granted") {
          console.log("相机权限被拒绝");
          return;
        }

        const result = await ImagePicker.launchCameraAsync({
          mediaTypes: ImagePicker.MediaTypeOptions.Images,
          allowsEditing: true,
          aspect: [4, 3],
          quality: 1,
        });

        if (!result.canceled && result.assets && result.assets.length > 0) {
          await cleanupImagePickerCache();
          navigation.navigate("ImageSearchResultScreen", {
            image: result.assets[0].uri,
            type: 1,
          });
        }
      } catch (error) {
        console.error("相机错误:", error);
        await cleanupImagePickerCache();
      }
    }, 500);
  }, []);

  const resetAppState = useCallback(() => {
    setGalleryUsed(false);
    cleanupImagePickerCache();
    Alert.alert("已重置", "现在您可以使用相机功能了");
  }, []);

  const renderItem = ({ item, index }: { item: Product; index: number }) => {
    if (index >= products.length && index < products.length + loadingPlaceholders) {
      return <ProductSkeleton />;
    }
    return renderProductItem({ item });
  };

  const renderHeader = () => (
    <>
      <View style={styles.swiperContainer}>
        <Carousel
          loop
          width={screenWidth}
          data={data}
          height={widthUtils(286, 286).height}
          modeConfig={{
            parallaxScrollingScale: 0.9,
            parallaxScrollingOffset: 50,
          }}
          renderItem={({ item }) => (
            <TouchableOpacity
              onPress={() => navigation.navigate(item.add)}
              key={item.imgUrl}
              style={{
                flex: 1,
                justifyContent: "center",
                alignItems: "center",
                backgroundColor: "#f2f2f2",
                borderRadius: 0,
                overflow: "hidden",
              }}
            >
              <Image
                source={item.imgUrl}
                style={{ width: "100%", height: "100%" }}
                resizeMode="cover"
                defaultSource={require("../../assets/img/banner en (3).png")}
              />
            </TouchableOpacity>
          )}
        />
        <View style={styles.searchOverlay}>
          <TouchableOpacity
            style={styles.searchBar}
            activeOpacity={0.7}
            onPress={navigateToSearch}
          >
            <IconComponent name="search-outline" size={20} color="#999" />
            <Text style={styles.searchPlaceholder}>{t("homePage.searchPlaceholder")}</Text>
            <TouchableOpacity
              style={styles.cameraButton}
              onPress={() => setShowImagePickerModal(true)}
            >
              <IconComponent name="camera-outline" size={24} color="#333" />
            </TouchableOpacity>
          </TouchableOpacity>
        </View>
      </View>
      <View style={styles.bannerContainer}>
        <View style={styles.leftContainer}>
          <TouchableOpacity
            style={styles.leftTopItem}
            onPress={navigateToShippingDetails}
          >
            <Image
              source={require("../../assets/img/a_计算运费.png")}
              style={styles.bannerIcon}
            />
          </TouchableOpacity>
          <TouchableOpacity
            style={styles.leftBottomItem}
            onPress={() => navigation.navigate("TikTokScreen")}
          >
            <Image
              source={require("../../assets/img/a_tiktok.png")}
              style={styles.bannerIcon}
            />
          </TouchableOpacity>
        </View>
        <TouchableOpacity
          style={styles.rightContainer}
          onPress={navigateToInquiry}
        >
          <Image
            source={require("../../assets/img/a_VIP.png")}
            style={styles.bigbannerIcon}
          />
        </TouchableOpacity>
      </View>
      <View style={styles.category}>
        <View style={styles.categoryScrollContainer}>
          <ScrollView
            bounces={false}
            overScrollMode="never"
            ref={horizontalScrollRef}
            horizontal
            showsHorizontalScrollIndicator={false}
            style={styles.categoryScroll}
          >
            {categories.map((category, index) => (
              <TouchableOpacity
                key={index}
                style={[
                  styles.categoryItem,
                  selectedHorizontalCategory === category && styles.categoryItemActive,
                ]}
                onPress={() => setSelectedHorizontalCategory(category)}
              >
                <Text
                  style={[
                    styles.categoryText,
                    selectedHorizontalCategory === category && styles.categoryTextActive,
                  ]}
                >
                  {t(`homePage.${category.toLowerCase()}`)}
                </Text>
              </TouchableOpacity>
            ))}
          </ScrollView>
          <LinearGradient
            colors={["rgba(255,255,255,0)", "rgba(255,255,255,1)"]}
            start={{ x: 0, y: 0 }}
            end={{ x: 1, y: 0 }}
            style={styles.fadeGradient}
          />
        </View>
        <View style={styles.categoryArrowContainer}>
          <TouchableOpacity onPress={() => setShowCategoryModal(true)}>
            <DownArrowIcon size={fontSize(18)} color="#666" rotation={360} />
          </TouchableOpacity>
        </View>
      </View>
      {selectedHorizontalCategory &&
      categoryContent[selectedHorizontalCategory] &&
      categoryContent[selectedHorizontalCategory].length > 0 ? (
        <View style={styles.subcategoryContainer}>
          <ScrollView
            bounces={false}
            overScrollMode="never"
            horizontal
            showsHorizontalScrollIndicator={false}
            style={styles.subcategoryScroll}
            contentContainerStyle={styles.subcategoryContent}
          >
            {categoryContent[selectedHorizontalCategory].map((item) => (
              <TouchableOpacity
                key={item.id}
                style={styles.subcategoryItem}
                onPress={() => {
                  // Handle subcategory selection
                }}
              >
                <View style={styles.subcategoryImagePlaceholder}>
                  <IconComponent name={item.icon} size={24} color="#666" />
                </View>
                <Text style={styles.subcategoryText}>{item.title}</Text>
              </TouchableOpacity>
            ))}
          </ScrollView>
        </View>
      ) : null}
    </>
  );

  return (
    <SafeAreaView style={styles.safeArea}>
      <StatusBar barStyle="dark-content" backgroundColor="#fff" />
      <View style={styles.safeAreaContent}>
        <View style={styles.container}>
          {loading ? (
            <View>
              {renderHeader()}
              {renderSkeletonGrid()}
            </View>
          ) : (
            <FlatList
              ref={flatListRef}
              data={[...products, ...Array(loadingPlaceholders).fill(null)]}
              numColumns={2}
              showsVerticalScrollIndicator={false}
              columnWrapperStyle={styles.productCardGroup}
              renderItem={renderItem}
              keyExtractor={(item, index) =>
                (item?.offer_id ? `${item.offer_id}-${currentPage}-${index}` : `placeholder-${currentPage}-${index}`)
              }
              contentContainerStyle={{
                paddingBottom: 15,
                backgroundColor: "transparent",
              }}
              ListHeaderComponent={renderHeader}
              onEndReached={handleLoadMore}
              onEndReachedThreshold={3}
              ListFooterComponent={() => (
                !hasMore && !loadingPlaceholders ? (
                  <View style={{ padding: 10, alignItems: 'center' }}>
                    <Text>没有更多数据了</Text>
                  </View>
                ) : null
              )}
              refreshControl={
                <RefreshControl
                  refreshing={refreshing}
                  onRefresh={handleRefresh}
                  colors={["#ff5100"]}
                  tintColor="#ff5100"
                  progressBackgroundColor="transparent"
                />
              }
            />
          )}

          <Modal
            visible={showCategoryModal}
            animationType="slide"
            transparent={true}
            onRequestClose={() => setShowCategoryModal(false)}
          >
            <View style={styles.modalOverlay}>
              <View style={styles.modalContent}>
                <View style={styles.modalHeader}>
                  <View style={styles.modalTitleContainer}>
                    <Ionicons name="flame-outline" size={24} color="#000" />
                    <Text style={styles.modalTitle}>推荐</Text>
                  </View>
                  <TouchableOpacity
                    style={styles.closeButton}
                    onPress={() => setShowCategoryModal(false)}
                  >
                    <Text style={styles.closeButtonText}>
                      <CloseIcon size={18} color="#000" />
                    </Text>
                  </TouchableOpacity>
                </View>
                <ScrollView
                  style={styles.modalScrollView}
                  bounces={false}
                  overScrollMode="never"
                >
                  {categories.map((category, index) => (
                    <TouchableOpacity
                      key={index}
                      style={styles.categoryModalItem}
                      onPress={() => {
                        setSelectedCategory(category);
                        setSelectedHorizontalCategory(category);
                        setShowCategoryModal(false);
                        scrollToCategory(category);
                      }}
                    >
                      <Text
                        style={[
                          styles.categoryModalText,
                          selectedCategory === category && styles.selectedCategoryText,
                        ]}
                      >
                        {category}
                      </Text>
                      {selectedCategory === category && (
                        <CheckmarkIcon size={fontSize(16)} color="#000" />
                      )}
                    </TouchableOpacity>
                  ))}
                </ScrollView>
              </View>
            </View>
          </Modal>

          <Modal
            visible={showImagePickerModal}
            animationType="slide"
            transparent={true}
            onRequestClose={() => setShowImagePickerModal(false)}
          >
            <TouchableOpacity
              style={styles.imagePickerOverlay}
              activeOpacity={1}
              onPress={() => setShowImagePickerModal(false)}
            >
              <View style={styles.imagePickerContent}>
                {!galleryUsed ? (
                  <TouchableOpacity
                    style={styles.imagePickerOption}
                    onPress={handleTakePhoto}
                  >
                    <IconComponent
                      name="camera-outline"
                      size={24}
                      color="#333"
                    />
                    <Text style={styles.imagePickerText}>{t("homePage.takePhoto")}</Text>
                  </TouchableOpacity>
                ) : (
                  <TouchableOpacity
                    style={styles.imagePickerOption}
                    onPress={resetAppState}
                  >
                    <IconComponent
                      name="refresh-outline"
                      size={24}
                      color="#333"
                    />
                    <Text style={styles.imagePickerText}>重置相机功能</Text>
                  </TouchableOpacity>
                )}

                <View style={styles.imagePickerDivider} />

                <TouchableOpacity
                  style={styles.imagePickerOption}
                  onPress={handleChooseFromGallery}
                >
                  <IconComponent name="images-outline" size={24} color="#333" />
                  <Text style={styles.imagePickerText}>{t("homePage.chooseFromGallery")}</Text>
                </TouchableOpacity>

                <View style={styles.imagePickerDivider} />

                <TouchableOpacity
                  style={styles.imagePickerCancelButton}
                  onPress={() => setShowImagePickerModal(false)}
                >
                  <Text style={styles.imagePickerCancelText}>{t("homePage.cancel")}</Text>
                </TouchableOpacity>
              </View>
            </TouchableOpacity>
          </Modal>
        </View>
      </View>
    </SafeAreaView>
  );
};
const styles = StyleSheet.create<StylesType>({
  safeArea: {
    flex: 1,
    backgroundColor: "#fff",
  },
  safeAreaContent: {
    flex: 1,
    paddingTop: Platform.OS === "android" ? 0 : 0,
  },
  container: {
    flex: 1,
    backgroundColor: "#fff",
  },
  swpImg: {
    width: "100%",
    height: 180,
  },
  searchOverlay: {
    position: "absolute",
    top: widthUtils(20, 20).height,
    left: 15,
    right: 15,
    zIndex: 10,
  },
  searchBar: {
    flexDirection: "row",
    alignItems: "center",
    backgroundColor: "rgba(255, 255, 255, 0.9)",
    borderRadius: 20,
    paddingHorizontal: 15,
    height: 40,
    shadowColor: "#000",
    shadowOffset: {
      width: 0,
      height: 2,
    },
    shadowOpacity: 0.1,
    shadowRadius: 3,
    elevation: 3,
  },
  searchPlaceholder: {
    flex: 1,
    marginLeft: 8,
    fontSize: fontSize(16),
  },
  cameraButton: {
    padding: 5,
  },
  bannerContainer: {
    flexDirection: "row",
    marginTop: 20,
    paddingHorizontal: 15,
    width: "100%",
  },
  leftContainer: {
    marginRight: "4%",
  },
  leftTopItem: {
    height: widthUtils(90, 200).height,
    width: widthUtils(90, 200).width,
    borderRadius: 8,
    padding: 0,
    marginBottom: 10,
    overflow: "hidden",
  },
  leftBottomItem: {
    height: widthUtils(90, 200).height,
    width: widthUtils(90, 200).width,
    borderRadius: 8,
    padding: 0,
    overflow: "hidden",
  },
  rightContainer: {
    width: widthUtils(190, 180).width,
    height: widthUtils(190, 180).height,
    borderRadius: 8,
    padding: 0,
    overflow: "hidden",
    flex: 1,
  },
  bannerIcon: {
    width: "100%",
    height: "100%",
    objectFit: "contain",
  },
  bigbannerIcon: {
    width: "100%",
    height: "100%",
    objectFit: "contain",
  },
  category: {
    width: "100%",
    paddingVertical: 10,
    flexDirection: "row",
    alignItems: "center",
    marginTop: 10,
    backgroundColor: "#fff",
  },
  categoryScrollContainer: {
    flex: 1,
    position: "relative",
    overflow: "hidden",
    paddingRight: 55,
  },
  categoryScroll: {
    paddingHorizontal: 15,
  },
  categoryItem: {
    paddingHorizontal: 12,
    paddingVertical: 8,
    marginRight: 5,
  },
  categoryItemActive: {
    borderBottomWidth: 2,
    borderBottomColor: "#000",
  },
  categoryText: {
    fontSize: fontSize(16),
    color: "#747474",
    fontFamily: "Alexandria",
    fontWeight: "400",
  },
  categoryTextActive: {
    color: "#000",
    fontWeight: "500",
  },
  swiperContainer: {
    width: "100%",
    height: widthUtils(286, 430).height,
    paddingHorizontal: 0,
  },
  swiper: {
    width: "100%",
  },
  dot: {
    backgroundColor: "rgba(255,255,255,0.5)",
    width: 8,
    height: 8,
    borderRadius: 4,
    marginLeft: 3,
    marginRight: 3,
  },
  activeDot: {
    backgroundColor: "#fff",
    width: 20,
    height: 8,
    borderRadius: 4,
    marginLeft: 3,
    marginRight: 3,
  },
  slide: {
    flex: 1,
    justifyContent: "center",
    alignItems: "center",
    width: "100%",
  },
  slideImage: {
    width: "100%",
    height: "100%",
  },
  fadeGradient: {
    position: "absolute",
    right: 40,
    top: 0,
    bottom: 0,
    width: 40,
    zIndex: 1,
    backgroundColor: "transparent",
  },
  categoryArrowContainer: {
    position: "absolute",
    right: 0,
    paddingRight: 15,
    height: "100%",
    justifyContent: "center",
    alignItems: "center",
    zIndex: 2,
    backgroundColor: "#fff",
  },
  modalOverlay: {
    flex: 1,
    backgroundColor: "rgba(0, 0, 0, 0.5)",
    justifyContent: "flex-end",
  },
  modalContent: {
    backgroundColor: "#fff",
    borderTopLeftRadius: 20,
    borderTopRightRadius: 20,
    maxHeight: "80%",
  },
  modalHeader: {
    flexDirection: "row",
    alignItems: "center",
    justifyContent: "space-between",
    padding: 16,
    borderBottomWidth: 1,
    borderBottomColor: "#f0f0f0",
  },
  modalTitleContainer: {
    flexDirection: "row",
    alignItems: "center",
  },
  modalTitle: {
    fontSize: fontSize(16),
    fontWeight: "600",
    marginLeft: 8,
  },
  closeButton: {
    padding: 8,
  },
  closeButtonText: {
    fontSize: fontSize(24),
    color: "#000",
    fontWeight: "300",
  },
  modalScrollView: {
    padding: 16,
  },
  categoryModalItem: {
    flexDirection: "row",
    justifyContent: "space-between",
    alignItems: "center",
    paddingVertical: 16,
  },
  categoryModalText: {
    fontSize: fontSize(16),
    color: "#666",
    fontFamily: "Segoe UI",
    fontWeight: "700",
  },
  selectedCategoryText: {
    color: "#000",
    fontWeight: "500",
  },
  subcategoryContainer: {
    height: 100, // Fixed height for the subcategory container
    marginTop: 15,
  },
  subcategoryScroll: {
    flex: 1,
  },
  subcategoryContent: {
    paddingHorizontal: 15,
  },
  subcategoryItem: {
    alignItems: "center",
    marginRight: 15,
    width: 60,
  },
  subcategoryImagePlaceholder: {
    width: 60,
    height: 60,
    borderRadius: 30,
    backgroundColor: "#f5f5f5",
    justifyContent: "center",
    alignItems: "center",
    marginBottom: 8,
  },
  subcategoryText: {
    fontSize: fontSize(12),
    color: "#333",
    textAlign: "center",
    fontFamily: "Alexandria",
  },
  productContainer: {
    flex: 1,
    backgroundColor: "#fff",
  },
  productCardList: {
    padding: 15,
    paddingTop: 0,
  },
  productCardGroup: {
    justifyContent: "space-between",
    marginBottom: 15,
    paddingHorizontal: 15,
  },
  beautyProductCard1: {
    width: "48%",
  },
  beautyCardContainer1: {
    flexDirection: "column",
    alignItems: "flex-end",
    justifyContent: "center",
    width: "100%",
    height: 160,
    backgroundColor: "transparent",
    borderRadius: 10,
    overflow: "hidden",
    position: "relative",
  },
  vipButtonContainer: {
    position: "absolute",
    top: 0,
    right: 0,
    zIndex: 2,
  },
  vipButton: {
    width: widthUtils(30, 60).width,
    height: widthUtils(30, 60).height,
    justifyContent: "center",
    alignItems: "center",
    backgroundColor: "#3b3b3b",
    borderRadius: 10,
    flexDirection: "row",
  },
  vipButtonText: {
    fontStyle: "italic",
    fontWeight: "900",
    fontSize: fontSize(18),
    color: "#f1c355",
  },
  vipLabelBold: {
    fontStyle: "italic",
    fontWeight: "900",
    fontSize: fontSize(18),
    color: "#f1c355",
  },
  beautyProductCard: {
    marginTop: 9,
  },
  beautyProductTitle: {
    fontSize: fontSize(14),
    fontWeight: "600",
    color: "black",
    lineHeight: 18,
  },
  beautyProductInfoRow: {
    flexDirection: "row",
    alignItems: "center",
  },
  flexRowCentered: {},
  priceContainer: {
    flexDirection: "row",
  },
  highlightedText: {
    fontWeight: "700",
    fontSize: fontSize(24),
    color: "#ff5100",
    marginLeft: 2,
  },
  highlightedText1: {
    fontWeight: "700",
    fontSize: fontSize(14),
    color: "#ff5100",
  },
  priceContainer1: {},
  priceLabel1: {
    fontSize: fontSize(12),
    fontWeight: "600",
    color: "#9a9a9a",
    textDecorationLine: "line-through",
  },
  beautySalesInfo: {
    marginTop: 6.75,
    fontSize: fontSize(14),
    fontWeight: "600",
    color: "#7c7c7c",
  },
  indicatorContainer: {
    flexDirection: "row",
    justifyContent: "center",
    alignItems: "center",
    position: "absolute",
    bottom: 10,
    left: 0,
    right: 0,
  },
  indicator: {
    marginHorizontal: 4,
    borderRadius: 3,
  },
  activeIndicator: {
    width: 14,
    height: 6,
    backgroundColor: "#fff",
  },
  inactiveIndicator: {
    width: 6,
    height: 6,
    backgroundColor: "rgba(255, 255, 255, 0.5)",
  },
  // 骨架屏样式
  skeletonContainer: {
    paddingHorizontal: 0,
    paddingTop: 0,
  },
  skeletonImage: {
    width: "100%",
    paddingBottom: "100%",
    borderRadius: 10,
    backgroundColor: "#e1e1e1",
    overflow: "hidden",
    position: "relative",
  },
  skeletonTitle: {
    height: 16,
    borderRadius: 4,
    marginTop: 8,
    marginBottom: 4,
    width: "100%",
    backgroundColor: "#e1e1e1",
    overflow: "hidden",
    position: "relative",
  },
  skeletonPrice: {
    height: 24,
    width: 80,
    borderRadius: 4,
    marginTop: 8,
    backgroundColor: "#e1e1e1",
    overflow: "hidden",
    position: "relative",
  },
  skeletonSales: {
    height: 14,
    width: "40%",
    borderRadius: 4,
    marginTop: 8,
    backgroundColor: "#e1e1e1",
    overflow: "hidden",
    position: "relative",
  },
  shimmer: {
    width: "30%",
    height: "100%",
    backgroundColor: "rgba(255, 255, 255, 0.3)",
    position: "absolute",
    top: 0,
    left: 0,
  },
  imagePlaceholder: {
    backgroundColor: "#EAEAEA",
    justifyContent: "center",
    alignItems: "center",
    borderRadius: 8,
  },
  productImage: {
    width: "100%",
    height: "100%",
    borderRadius: 10,
  },
  // Image Picker Modal Styles
  imagePickerOverlay: {
    flex: 1,
    backgroundColor: "rgba(0, 0, 0, 0.5)",
    justifyContent: "flex-end",
  },
  imagePickerContent: {
    backgroundColor: "#fff",
    borderTopLeftRadius: 20,
    borderTopRightRadius: 20,
    paddingTop: 20,
  },
  imagePickerOption: {
    flexDirection: "row",
    alignItems: "center",
    paddingVertical: 16,
    paddingHorizontal: 20,
  },
  imagePickerText: {
    fontSize: fontSize(16),
    marginLeft: 12,
    color: "#333",
  },
  imagePickerDivider: {
    height: 1,
    backgroundColor: "#f0f0f0",
    marginHorizontal: 20,
  },
  imagePickerCancelButton: {
    alignItems: "center",
    paddingVertical: 16,
    marginTop: 8,
    borderTopWidth: 1,
    borderTopColor: "#f0f0f0",
  },
  imagePickerCancelText: {
    fontSize: fontSize(16),
    color: "#999",
  },
});