// 商店页面主逻辑
// 负责资源加载、搜索、分类筛选等功能

(function () {
  'use strict';

  class StoreView {
    constructor() {
      this.resources = [];
      this.filteredResources = [];
      this.currentCategory = '';
      this.searchQuery = '';
      this.itemTemplate = null;
      this.currentFps = 8;
      this.frameUrls = [];
      this.currentFrame = 0;
      this.itemAnimations = new Map(); // 存储每个 item 的动画数据
      this.isUserLoggedIn = false; // 本地登录状态缓存
      
      this.init();
    }

    async init() {
      // 加载 item 模板
      await this.loadItemTemplate();
      
      // 绑定事件
      this.bindEvents();
      
      // 加载分类
      await this.loadCategories();
      
      // 加载资源
      await this.loadResources();
    }

    async loadItemTemplate() {
      try {
        // 使用相对于当前页面的路径
        // store.html 位于 page/store/store.html，item.html 位于同一目录
        const response = await fetch('./item.html');
        if (!response.ok) {
          throw new Error(`HTTP error! status: ${response.status}`);
        }
        const html = await response.text();
        this.itemTemplate = html;
      } catch (error) {
        console.error('[StoreView] 加载模板失败:', error);
        // 如果相对路径失败，尝试绝对路径
        try {
          const response = await fetch('/page/store/item.html');
          if (response.ok) {
            const html = await response.text();
            this.itemTemplate = html;
          } else {
            throw new Error('绝对路径也失败');
          }
        } catch (fallbackError) {
          console.error('[StoreView] 备用路径也失败:', fallbackError);
          this.itemTemplate = '<div class="store-item">加载失败</div>';
        }
      }
    }

    async loadCategories() {
      try {
        const response = await fetch('http://localhost:3000/api/store/categories');
        if (!response.ok) {
          throw new Error(`HTTP error! status: ${response.status}`);
        }
        
        const data = await response.json();
        
        if (data.success && data.categories) {
          const categoryBar = document.getElementById('categoryBar');
          if (categoryBar) {
            // 保留"全部"按钮，添加其他分类
            const allButton = categoryBar.querySelector('.category-item[data-category=""]');
            categoryBar.innerHTML = '';
            if (allButton) {
              categoryBar.appendChild(allButton);
            }
            
            // 添加动态分类按钮
            data.categories.forEach(category => {
              const button = document.createElement('button');
              button.className = 'category-item';
              button.dataset.category = category.name; // 使用文件夹名称作为分类名称
              button.textContent = category.name;
              categoryBar.appendChild(button);
            });
          }
        }
      } catch (error) {
        console.error('[StoreView] 加载分类失败:', error);
        // 如果加载失败，保持默认的"全部"按钮
      }
    }

    bindEvents() {
      // 监听登录状态变化
      window.addEventListener('message', (event) => {
        if (event.data && event.data.type === 'login-success' && event.data.user) {
          this.isUserLoggedIn = true;
        } else if (event.data && event.data.type === 'logout') {
          this.isUserLoggedIn = false;
        }
      });
      
      // 搜索栏
      const searchInput = document.getElementById('searchInput');
      const searchButton = document.getElementById('searchButton');
      
      if (searchInput) {
        searchInput.addEventListener('input', (e) => {
          this.searchQuery = e.target.value.trim();
          this.filterResources();
        });
        
        searchInput.addEventListener('keypress', (e) => {
          if (e.key === 'Enter') {
            this.filterResources();
          }
        });
      }
      
      if (searchButton) {
        searchButton.addEventListener('click', () => {
          this.filterResources();
        });
      }
      
      // 分类栏
      const categoryItems = document.querySelectorAll('.category-item');
      categoryItems.forEach(item => {
        item.addEventListener('click', () => {
          // 移除所有 active 类
          categoryItems.forEach(i => i.classList.remove('active'));
          // 添加 active 类到当前项
          item.classList.add('active');
          // 更新当前分类
          this.currentCategory = item.dataset.category || '';
          // 重新加载资源
          this.loadResources();
        });
      });
      
      // 预览弹窗关闭
      const previewClose = document.getElementById('previewClose');
      const previewModal = document.getElementById('previewModal');
      
      if (previewClose) {
        previewClose.addEventListener('click', () => {
          this.stopAnimation();
          if (previewModal) {
            previewModal.style.display = 'none';
          }
        });
      }
      
      if (previewModal) {
        previewModal.addEventListener('click', (e) => {
          if (e.target === previewModal) {
            this.stopAnimation();
            previewModal.style.display = 'none';
          }
        });
      }
      
      // 帧率滑块
      const fpsSlider = document.getElementById('fpsSlider');
      const fpsDisplay = document.getElementById('fpsDisplay');
      
      if (fpsSlider && fpsDisplay) {
        fpsSlider.addEventListener('input', (e) => {
          const fps = parseInt(e.target.value);
          this.currentFps = fps;
          fpsDisplay.textContent = `${fps} FPS`;
          // 如果动画正在播放，重新启动以应用新帧率
          if (this.animationInterval && this.frameUrls.length > 0) {
            const previewImage = document.getElementById('previewAnimationImage');
            if (previewImage) {
              this.stopAnimation();
              this.startAnimation(previewImage, this.frameUrls);
            }
          }
        });
      }
      
      // 使用事件委托处理动态添加的按钮
      const resourcesGrid = document.getElementById('resourcesGrid');
      if (resourcesGrid) {
        // 购买按钮点击
        resourcesGrid.addEventListener('click', (e) => {
          console.log('[StoreView] 点击事件触发，目标:', e.target);
          if (e.target.closest('.item-buy-button')) {
            const button = e.target.closest('.item-buy-button');
            const path = button.dataset.resourcePath;
            console.log('[StoreView] 点击购买按钮，路径:', path);
            
            // 检查是否已登录
            if (!this.isLoggedIn()) {
              console.log('[StoreView] 未登录，跳转登录页');
              // 显示登录界面
              if (window.parent !== window) {
                window.parent.postMessage({
                  type: 'navigation',
                  page: 'login'
                }, '*');
              }
              return;
            }
            
            console.log('[StoreView] 已登录，调用 handleBuy');
            this.handleBuy(path);
          }
        });
      }
    }

    async loadResources() {
      this.showLoading(true);
      this.hideEmpty();
      
      try {
        const params = new URLSearchParams();
        if (this.currentCategory) {
          params.append('category', this.currentCategory);
        }
        if (this.searchQuery) {
          params.append('search', this.searchQuery);
        }
        
        const response = await fetch(`http://localhost:3000/api/store/resources?${params.toString()}`);
        
        if (!response.ok) {
          throw new Error(`HTTP error! status: ${response.status}`);
        }
        
        const data = await response.json();
        
        if (data.success) {
          this.resources = data.resources || [];
          // 使用服务器返回的价格，如果没有则默认为0
          this.resources.forEach(resource => {
            if (resource.points === undefined || resource.points === null) {
              resource.points = 0;
            }
          });
          this.filteredResources = this.resources;
          this.renderResources();
        } else {
          throw new Error(data.error || '加载资源失败');
        }
      } catch (error) {
        console.error('[StoreView] 加载资源失败:', error);
        this.showGlobalAlert('加载资源失败: ' + error.message);
        this.resources = [];
        this.filteredResources = [];
        this.renderResources();
      } finally {
        this.showLoading(false);
      }
    }

    filterResources() {
      // 重新加载资源（服务器端筛选）
      this.loadResources();
    }

    renderResources() {
      const grid = document.getElementById('resourcesGrid');
      if (!grid) return;
      
      if (this.filteredResources.length === 0) {
        grid.innerHTML = '';
        this.showEmpty();
        return;
      }
      
      this.hideEmpty();
      
      // 计算列数
      const columnWidth = 200;
      const gap = 16;
      const containerWidth = grid.offsetWidth || grid.clientWidth || window.innerWidth;
      const columnCount = Math.max(1, Math.floor((containerWidth + gap) / (columnWidth + gap)));
      
      // 创建列容器
      grid.innerHTML = '';
      const masonryContainer = document.createElement('div');
      masonryContainer.className = 'resources-grid-masonry';
      
      const columns = [];
      const columnHeights = [];
      
      for (let i = 0; i < columnCount; i++) {
        const column = document.createElement('div');
        column.className = 'masonry-column';
        masonryContainer.appendChild(column);
        columns.push(column);
        columnHeights.push(0);
      }
      
      grid.appendChild(masonryContainer);
      
      // 创建临时容器来测量项目高度
      const tempContainer = document.createElement('div');
      tempContainer.style.position = 'absolute';
      tempContainer.style.visibility = 'hidden';
      tempContainer.style.width = `${columnWidth}px`;
      tempContainer.style.top = '-9999px';
      tempContainer.style.left = '-9999px';
      document.body.appendChild(tempContainer);
      
      // 渲染所有项目到临时容器并测量
      const itemsData = this.filteredResources.map(resource => {
        const itemHtml = this.renderItem(resource);
        tempContainer.innerHTML = itemHtml;
        const itemElement = tempContainer.querySelector('.store-item');
        const height = itemElement ? itemElement.offsetHeight : 0;
        return { html: itemHtml, height };
      });
      
      // 将项目分配到最短的列
      itemsData.forEach(({ html, height }) => {
        // 找到最短的列
        const shortestColumnIndex = columnHeights.indexOf(Math.min(...columnHeights));
        
        // 添加到最短的列
        columns[shortestColumnIndex].insertAdjacentHTML('beforeend', html);
        
        // 更新列高度
        columnHeights[shortestColumnIndex] += height + gap;
      });
      
      // 清理临时容器
      document.body.removeChild(tempContainer);
      
      // 为每个 item 绑定鼠标事件和 FPS 控制
      const allItems = masonryContainer.querySelectorAll('.store-item');
      allItems.forEach(item => {
        const category = item.dataset.category;
        const folder = item.dataset.folder;
        const previewImage = item.querySelector('.item-preview-image');
        const fpsSlider = item.querySelector('.item-fps-slider');
        const fpsDisplay = item.querySelector('.item-fps-display');
        
        if (category && folder && previewImage) {
          // 存储当前 FPS（每个 item 独立）
          let currentFps = 8;
          
          // FPS 滑块事件
          if (fpsSlider && fpsDisplay) {
            fpsSlider.addEventListener('input', (e) => {
              const fps = parseInt(e.target.value);
              currentFps = fps;
              fpsDisplay.textContent = `${fps} FPS`;
              
              // 如果动画正在播放，重新启动以应用新帧率
              if (previewImage._animationInterval) {
                this.stopItemAnimation(previewImage);
                this.startItemAnimation(previewImage, category, folder, fps);
              }
            });
            
            // 阻止事件冒泡，避免触发 item 的 mouseleave
            fpsSlider.addEventListener('mousedown', (e) => {
              e.stopPropagation();
            });
          }
          
          // 鼠标进入时播放动画
          item.addEventListener('mouseenter', () => {
            this.startItemAnimation(previewImage, category, folder, currentFps);
          });
          
          // 鼠标离开时停止动画
          item.addEventListener('mouseleave', () => {
            this.stopItemAnimation(previewImage);
          });
        }
      });
      
      // 使用 resize observer 监听窗口大小变化
      if (!this.resizeObserver) {
        this.resizeObserver = new ResizeObserver(() => {
          this.renderResources();
        });
        this.resizeObserver.observe(grid);
      }
      
      // 检查每个资源是否已存在（如果已登录），只更新按钮状态，不重新渲染
      if (this.isLoggedIn()) {
        this.checkResourcesOwnership(this.filteredResources).then(() => {
          // 只更新按钮状态，不重新渲染整个列表
          this.updateButtonStates();
        });
      }
    }
    
    // 更新单个资源的按钮状态
    updateSingleButtonState(resourcePath) {
      const item = document.querySelector(`[data-resource-path="${CSS.escape(resourcePath)}"]`);
      if (!item) {
        console.warn('[StoreView] 未找到资源项:', resourcePath);
        return;
      }
      
      const resource = this.resources.find(r => r.path === resourcePath);
      if (!resource) {
        console.warn('[StoreView] 未找到资源对象:', resourcePath);
        return;
      }
      
      const button = item.querySelector('.item-buy-button');
      const priceEl = item.querySelector('.item-price');
      
      if (button) {
        const isFree = resource.points === 0;
        const isOwned = resource.isOwned || false;
        
        if (isFree) {
          // 免费资源：显示"免费"，按钮"添加"
          button.textContent = '添加';
          button.classList.remove('item-button-added');
          if (priceEl) priceEl.textContent = '免费';
        } else if (isOwned) {
          // 付费且已购买：显示价格，按钮"添加"（绿色）
          button.textContent = '添加';
          button.classList.add('item-button-added');
          if (priceEl) priceEl.textContent = `${resource.points} Ani币`;
        } else {
          // 付费且未购买：显示价格，按钮"购买"
          button.textContent = '购买';
          button.classList.remove('item-button-added');
          if (priceEl) priceEl.textContent = `${resource.points} Ani币`;
        }
        
        console.log('[StoreView] 单个按钮状态已更新:', resourcePath, 'isOwned:', isOwned);
      }
    }

    // 更新按钮状态（不重新渲染整个列表）
    updateButtonStates() {
      console.log('[StoreView] updateButtonStates 开始，资源列表:', this.resources.map(r => ({path: r.path, isOwned: r.isOwned, points: r.points})));
      const allItems = document.querySelectorAll('.store-item');
      console.log('[StoreView] 找到', allItems.length, '个 store-item 元素');
      allItems.forEach(item => {
        const path = item.dataset.resourcePath;
        const resource = this.resources.find(r => r.path === path);
        if (resource) {
          const button = item.querySelector('.item-buy-button');
          const priceEl = item.querySelector('.item-price');
          if (button) {
            const isFree = resource.points === 0;
            const isOwned = resource.isOwned || false;
            
            if (isFree) {
              // 免费资源：显示"免费"，按钮"添加"
              button.textContent = '添加';
              button.classList.remove('item-button-added');
              if (priceEl) priceEl.textContent = '免费';
            } else if (isOwned) {
              // 付费且已购买：显示价格，按钮"添加"（绿色）
              button.textContent = '添加';
              button.classList.add('item-button-added');
              if (priceEl) priceEl.textContent = `${resource.points} Ani币`;
            } else {
              // 付费且未购买：显示价格，按钮"购买"
              button.textContent = '购买';
              button.classList.remove('item-button-added');
              if (priceEl) priceEl.textContent = `${resource.points} Ani币`;
            }
          }
        }
      });
    }

    renderItem(resource) {
      if (!this.itemTemplate) {
        return '<div class="store-item">模板未加载</div>';
      }
      
      // 使用已保存的点数（在加载资源时已生成）
      const points = resource.points !== undefined ? resource.points : 0;
      
      // 根据点数和资源状态设置按钮文字和类
      const isFree = points === 0;
      const isOwned = resource.isOwned || false;
      
      let buttonText = '添加';
      let buttonClass = '';
      let priceText = points === 0 ? '免费' : `${points} Ani币`;
      
      if (isFree) {
        // 免费资源：显示"免费"，按钮"添加"
        buttonText = '添加';
        buttonClass = '';
      } else if (isOwned) {
        // 付费且已购买：显示价格，按钮"添加"（绿色）
        buttonText = '添加';
        buttonClass = 'item-button-added';
      } else {
        // 付费且未购买：显示价格，按钮"购买"
        buttonText = '购买';
        buttonClass = '';
      }
      
      // 先替换data-points中的{{points}}为原始points值
      let html = this.itemTemplate
        .replace(/data-points="\{\{points\}\}"/g, `data-points="${points}"`)
        .replace(/\{\{name\}\}/g, this.escapeHtml(resource.name))
        .replace(/\{\{category\}\}/g, this.escapeHtml(resource.category))
        .replace(/\{\{categoryDir\}\}/g, this.escapeHtml(resource.categoryDir))
        .replace(/\{\{previewUrl\}\}/g, resource.previewUrl || '')
        .replace(/\{\{frameCount\}\}/g, resource.frameCount || 0)
        .replace(/\{\{path\}\}/g, this.escapeHtml(resource.path))
        .replace(/\{\{buttonText\}\}/g, buttonText)
        .replace(/\{\{buttonClass\}\}/g, buttonClass);
      
      // 最后替换价格显示中的{{points}}为priceText
      html = html.replace(/\{\{points\}\}/g, priceText);
      
      return html;
    }

    escapeHtml(text) {
      const div = document.createElement('div');
      div.textContent = text;
      return div.innerHTML;
    }

    async playAnimation(category, folder) {
      const previewModal = document.getElementById('previewModal');
      const previewImage = document.getElementById('previewAnimationImage');
      const previewTitle = document.getElementById('previewTitle');
      
      if (!previewModal || !previewImage) return;
      
      // 显示弹窗
      previewModal.style.display = 'flex';
      if (previewTitle) {
        previewTitle.textContent = `动画预览: ${folder}`;
      }
      
      // 加载帧列表
      try {
        const response = await fetch(
          `http://localhost:3000/api/store/frames?category=${encodeURIComponent(category)}&folder=${encodeURIComponent(folder)}`
        );
        
        if (!response.ok) {
          throw new Error(`HTTP error! status: ${response.status}`);
        }
        
        const data = await response.json();
        
        if (data.success && data.frameUrls && data.frameUrls.length > 0) {
          // 保存帧URLs
          this.frameUrls = data.frameUrls;
          // 开始播放动画
          this.startAnimation(previewImage, data.frameUrls);
        } else {
          throw new Error('没有可用的帧');
        }
      } catch (error) {
        console.error('[StoreView] 播放动画失败:', error);
        this.showGlobalAlert('播放动画失败: ' + error.message);
        previewModal.style.display = 'none';
      }
    }

    startAnimation(imgElement, frameUrls) {
      // 停止之前的动画
      this.stopAnimation();
      
      this.currentFrame = 0;
      const fps = this.currentFps;
      const interval = 1000 / fps;
      
      // 预加载所有帧
      const images = [];
      let loadedCount = 0;
      
      frameUrls.forEach((url, index) => {
        const img = new Image();
        img.onload = () => {
          loadedCount++;
          if (loadedCount === frameUrls.length) {
            // 所有帧加载完成，开始播放
            this.animationInterval = setInterval(() => {
              this.currentFrame = (this.currentFrame + 1) % frameUrls.length;
              imgElement.src = frameUrls[this.currentFrame];
            }, interval);
          }
        };
        img.onerror = () => {
          loadedCount++;
          if (loadedCount === frameUrls.length) {
            this.animationInterval = setInterval(() => {
              this.currentFrame = (this.currentFrame + 1) % frameUrls.length;
              imgElement.src = frameUrls[this.currentFrame];
            }, interval);
          }
        };
        img.src = url;
        images.push(img);
      });
      
      // 立即显示第一帧
      if (frameUrls.length > 0) {
        this.currentFrame = 0;
        imgElement.src = frameUrls[0];
      }
    }

    stopAnimation() {
      if (this.animationInterval) {
        clearInterval(this.animationInterval);
        this.animationInterval = null;
      }
    }

    async startItemAnimation(imgElement, category, folder, fps = 8) {
      // 如果已经有动画在播放，先停止
      this.stopItemAnimation(imgElement);
      
      // 检查是否已缓存帧数据
      const cacheKey = `${category}/${folder}`;
      let frameUrls = this.itemAnimations.get(cacheKey);
      
      if (!frameUrls) {
        // 加载帧列表
        try {
          const response = await fetch(
            `http://localhost:3000/api/store/frames?category=${encodeURIComponent(category)}&folder=${encodeURIComponent(folder)}`
          );
          
          if (!response.ok) {
            throw new Error(`HTTP error! status: ${response.status}`);
          }
          
          const data = await response.json();
          
          if (data.success && data.frameUrls && data.frameUrls.length > 0) {
            frameUrls = data.frameUrls;
            this.itemAnimations.set(cacheKey, frameUrls);
          } else {
            return; // 没有可用的帧
          }
        } catch (error) {
          console.error('[StoreView] 加载帧失败:', error);
          return;
        }
      }
      
      // 开始播放动画
      let currentFrame = 0;
      const interval = 1000 / fps;
      
      // 立即显示第一帧
      if (frameUrls.length > 0) {
        imgElement.src = frameUrls[0];
      }
      
      // 存储动画 interval
      const animationInterval = setInterval(() => {
        currentFrame = (currentFrame + 1) % frameUrls.length;
        imgElement.src = frameUrls[currentFrame];
      }, interval);
      
      // 将 interval 和 fps 存储到 imgElement 上
      imgElement._animationInterval = animationInterval;
      imgElement._currentFps = fps;
    }

    stopItemAnimation(imgElement) {
      if (imgElement._animationInterval) {
        clearInterval(imgElement._animationInterval);
        imgElement._animationInterval = null;
      }
    }

    isLoggedIn() {
      // 首先检查本地缓存
      if (this.isUserLoggedIn) {
        return true;
      }
      
      // 如果本地缓存为 false，尝试从导航栏检查（作为备用方案）
      try {
        const navigationFrame = window.parent.document.getElementById('navigationFrame');
        if (navigationFrame && navigationFrame.contentWindow) {
          const navDoc = navigationFrame.contentDocument || navigationFrame.contentWindow.document;
          const userAvatarContainer = navDoc.getElementById('userAvatarContainer');
          
          // 如果用户头像容器存在且显示，说明已登录
          if (userAvatarContainer) {
            const computedStyle = navDoc.defaultView.getComputedStyle(userAvatarContainer);
            const isLoggedIn = computedStyle.display !== 'none';
            // 更新本地缓存
            this.isUserLoggedIn = isLoggedIn;
            return isLoggedIn;
          }
        }
      } catch (error) {
        // 跨域或无法访问时，使用本地缓存
        console.warn('[StoreView] 无法检查登录状态，使用本地缓存:', error);
      }
      
      return this.isUserLoggedIn;
    }

    // 检查资源是否已存在
    async checkResourcesOwnership(resources) {
      if (!this.isLoggedIn()) {
        return;
      }
      
      const username = this.getCurrentUsername();
      if (!username) {
        return;
      }
      
      // 批量检查资源
      const checkPromises = resources.map(async (resource) => {
        try {
          const response = await fetch(`/api/pay/check-resource?username=${encodeURIComponent(username)}&resourcePath=${encodeURIComponent(resource.path)}`);
          const result = await response.json();
          if (result.success) {
            resource.isOwned = result.exists;
          }
        } catch (error) {
          console.error(`[StoreView] 检查资源 ${resource.path} 失败:`, error);
        }
      });
      
      await Promise.all(checkPromises);
    }

    getCurrentUsername() {
      try {
        const loginDataStr = localStorage.getItem('loginData');
        if (!loginDataStr) {
          return null;
        }
        
        const loginData = JSON.parse(loginDataStr);
        const now = Date.now();
        
        // 检查是否过期
        if (now >= loginData.expireTime) {
          localStorage.removeItem('loginData');
          return null;
        }
        
        return loginData.user ? loginData.user.username : null;
      } catch (error) {
        console.error('[StoreView] 获取用户名失败:', error);
        return null;
      }
    }

    async handleBuy(path) {
      console.log('[StoreView] handleBuy 被调用，path:', path);
      
      // 获取资源信息
      const resource = this.resources.find(r => r.path === path);
      console.log('[StoreView] 找到资源:', resource);
      if (!resource) {
        this.showGlobalAlert('资源不存在');
        return;
      }

      // 获取点数（从渲染的 item 中获取，或使用资源的点数）
      const itemElement = document.querySelector(`[data-resource-path="${path}"]`);
      let points = resource.points;
      if (itemElement) {
        const pointsEl = itemElement.querySelector('.item-price');
        if (pointsEl) {
          const pointsText = pointsEl.textContent.replace('Ani币', '').trim();
          points = parseInt(pointsText) || points;
        }
        const dataPoints = itemElement.querySelector('.item-buy-button')?.dataset.points;
        if (dataPoints) {
          points = parseInt(dataPoints) || points;
        }
      }

      // 检查是否登录
      const username = this.getCurrentUsername();
      if (!username) {
        if (window.parent && window.parent !== window) {
          window.parent.postMessage({
            type: 'navigation',
            page: 'login'
          }, '*');
        }
        return;
      }

      // 如果是0点，直接添加
      if (points === 0) {
        try {
          const response = await fetch('/api/pay/purchase', {
            method: 'POST',
            headers: {
              'Content-Type': 'application/json'
            },
            body: JSON.stringify({
              username: username,
              resourcePath: resource.path,
              categoryDir: resource.categoryDir,
              itemName: resource.name,
              points: 0
            })
          });

          const result = await response.json();
          if (result.success) {
            // 标记为已拥有
            resource.isOwned = true;
            
            // 立即更新单个按钮状态
            this.updateSingleButtonState(resource.path);
            
            // 同时更新所有按钮状态（确保一致性）
            this.updateButtonStates();
            
            if (window.parent && window.parent.HintView) {
              window.parent.HintView.success('添加成功！文件已添加到网盘', 3000);
            }
            
            // 通知父窗口刷新网盘
            if (window.parent && window.parent !== window) {
              window.parent.postMessage({ type: 'refresh-disk' }, '*');
            }
          } else {
            if (window.parent && window.parent.HintView) {
              window.parent.HintView.error(result.message || '添加失败', 3000);
            }
          }
        } catch (error) {
          console.error('[StoreView] 添加资源失败:', error);
          if (window.parent && window.parent.HintView) {
            window.parent.HintView.error('添加失败，请稍后重试', 3000);
          }
        }
        return;
      }

      // 检查用户点数
      console.log('[StoreView] 检查用户点数，用户名:', username, '资源价格:', points);
      try {
        const pointsResponse = await fetch(`/api/user/points?username=${encodeURIComponent(username)}`);
        console.log('[StoreView] 点数请求响应:', pointsResponse.status);
        if (!pointsResponse.ok) {
          throw new Error(`HTTP error! status: ${pointsResponse.status}`);
        }
        const pointsResult = await pointsResponse.json();
        console.log('[StoreView] 点数结果:', pointsResult);
        if (!pointsResult.success) {
          throw new Error(pointsResult.message || '获取点数失败');
        }
        const userPoints = pointsResult.points || 0;
        console.log('[StoreView] 用户点数:', userPoints, '需要点数:', points);

        if (userPoints >= points) {
          // 点数充足，弹出确认对话框
          console.log('[StoreView] 点数充足，准备弹出确认对话框');
          console.log('[StoreView] window.parent.GlobalConfirm 存在:', !!(window.parent && window.parent.GlobalConfirm));
          
          let confirmed = false;
          if (window.parent && window.parent.GlobalConfirm) {
            // GlobalConfirm.show 返回 Promise
            confirmed = await window.parent.GlobalConfirm.show(
              `确定要花费 ${points} Ani币购买 ${resource.name} 吗？`
            );
            console.log('[StoreView] 用户选择:', confirmed);
          } else {
            // 降级使用原生 confirm
            console.log('[StoreView] GlobalConfirm 不可用，使用原生 confirm');
            confirmed = confirm(`确定要花费 ${points} Ani币购买 ${resource.name} 吗？`);
          }
          
          if (confirmed) {
              // 确认购买
              try {
                console.log('[StoreView] 发送购买请求...');
                const response = await fetch('/api/pay/purchase', {
                  method: 'POST',
                  headers: {
                    'Content-Type': 'application/json'
                  },
                  body: JSON.stringify({
                    username: username,
                    resourcePath: resource.path,
                    categoryDir: resource.categoryDir,
                    itemName: resource.name,
                    points: points
                  })
                });

                const result = await response.json();
                console.log('[StoreView] 购买结果:', result);
                
                if (result.success) {
                  // 标记为已拥有
                  resource.isOwned = true;
                  console.log('[StoreView] 购买成功，资源已标记为已拥有:', resource.path, 'isOwned:', resource.isOwned);
                  
                  // 立即更新单个按钮状态
                  this.updateSingleButtonState(resource.path);
                  
                  // 同时更新所有按钮状态（确保一致性）
                  this.updateButtonStates();
                  
                  if (window.parent && window.parent.HintView) {
                    window.parent.HintView.success(`购买成功！已扣除 ${points} Ani币，文件已添加到网盘`, 3000);
                  }
                  
                  // 通知父窗口刷新点数和网盘
                  if (window.parent && window.parent !== window) {
                    window.parent.postMessage({ type: 'refresh-points' }, '*');
                    window.parent.postMessage({ type: 'refresh-disk' }, '*');
                  }
                } else {
                  if (window.parent && window.parent.HintView) {
                    window.parent.HintView.error(result.message || '购买失败', 3000);
                  }
                }
              } catch (error) {
                console.error('[StoreView] 购买失败:', error);
                if (window.parent && window.parent.HintView) {
                  window.parent.HintView.error('购买失败，请稍后重试', 3000);
                }
              }
          }
        } else {
          // 点数不足，弹出充值窗口
          if (window.parent && window.parent !== window) {
            window.parent.postMessage({
              type: 'open-recharge-view',
              needPoints: points,
              currentPoints: userPoints
            }, '*');
          }
        }
      } catch (error) {
        console.error('[StoreView] 检查点数失败:', error);
        if (window.parent && window.parent.HintView) {
          window.parent.HintView.error('检查点数失败，请稍后重试', 3000);
        }
      }
    }

    showLoading(show) {
      const loadingState = document.getElementById('loadingState');
      if (loadingState) {
        loadingState.style.display = show ? 'flex' : 'none';
      }
    }

    showEmpty() {
      const emptyState = document.getElementById('emptyState');
      if (emptyState) {
        emptyState.style.display = 'flex';
      }
    }

    hideEmpty() {
      const emptyState = document.getElementById('emptyState');
      if (emptyState) {
        emptyState.style.display = 'none';
      }
    }

    showGlobalAlert(message) {
      if (window.parent && window.parent.postMessage) {
        window.parent.postMessage({
          type: 'global-alert',
          text: message,
          duration: 3000
        }, '*');
      } else {
        alert(message);
      }
    }
  }

  // 页面加载完成后初始化
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', () => {
      new StoreView();
    });
  } else {
    new StoreView();
  }
})();