// pages/ai-plan/ai-plan.js
const app = getApp();
const AMapKey = 'ad2afc314b741d5520274e419fda8655'; // 请替换为实际的高德地图Key

Page({
  data: {
    currentStep: 1,
    planGenerated: false,
    selectedDays: 3,
    selectedCity: '', 
    selectedInterests: ['patriotism'],
    isRegenerating: false,
    planData: null,
    selectedTransport: 'public',
    customRequirements: '',
    dayOptions: [
      { label: '1天', value: 1 },
      { label: '2天', value: 2 },
      { label: '3天', value: 3 },
      { label: '4天', value: 4 },
      { label: '5天', value: 5 },
      { label: '6天', value: 6 },
    ],
    cityOptions: [],
    interestOptions: [
      { label: '革命历史', value: 'history' },
      { label: '红色教育', value: 'education' },
      { label: '党史学习', value: 'party-history' },
      { label: '爱国主义', value: 'patriotism' }
    ],
    transportOptions: [
      { label: '公共交通', value: 'public', icon: '/images/icons/bus.png' },
      { label: '自驾', value: 'drive', icon: '/images/icons/car.png' },
      { label: '步行', value: 'walk', icon: '/images/icons/walk.png' },
      { label: '骑行', value: 'bike', icon: '/images/icons/bike.png' }
    ],
    isLoading: false,
    apiStatus: {
      citiesLoaded: false,
      attractionsLoaded: false
    },
    showAttractionDetail: false,
    currentAttraction: null,
    attractionDetail: null,
    lastGeneratedAt: null,
    isRegenerated: false,
    mapData: {
      markers: [],
      polyline: [],
      latitude: 39.9042,
      longitude: 116.4074,
      scale: 12,
      showMap: false,
      includePoints: []
    },
    currentMapDay: 0,
    mapLoaded: false,
    isFavorite: false,
    favoriteLoading: false,
  },

  onLoad() {
    this.initPage();
    this.loadInitialData();
    this.initMapControls();
     // 检查是否有需要恢复的状态
     const pageState = wx.getStorageSync('aiPlanPageState');
     if (pageState && wx.getStorageSync('token')) {
       // 如果有保存的状态且用户已登录，恢复状态
       this.restorePageState();
     }
  },

  onShow() {
    // 页面显示时检查是否是从登录页面返回
    const token = wx.getStorageSync('token');
    const pageState = wx.getStorageSync('aiPlanPageState');

    if (token && pageState) {
      // 用户已登录且有保存的状态，恢复状态并继续操作
      this.restorePageState();
    }
  },

  initPage() {
    const date = new Date();
    this.setData({
      currentDate: `${date.getMonth() + 1}月${date.getDate()}日`
    });
    this.initDefaultImages();
  },

  initDefaultImages() {
    this.setData({
      transportOptions: this.data.transportOptions.map(item => ({
        ...item,
        icon: this.checkImageExists(item.icon) ? item.icon : '/images/default-transport.png'
      }))
    });
  },

  loadInitialData() {
    this.getCities();
  },

  // 获取城市列表
  getCities() {
    this.setData({
      isLoading: true,
      cityOptions: []
    });

    wx.request({
      url: app.globalData.apiBaseUrl + '/api/cities/',
      method: 'GET',
      success: (res) => {
        if (res.statusCode === 200) {
          const rawData = res.data.data || res.data;
          const cityOptions = rawData.map(city => ({
            label: city.name || '未知城市',
            value: String(city.id || '0'),
            disabled: city.is_available === false,
            location: {
              latitude: city.latitude || 39.9042,
              longitude: city.longitude || 116.4074
            }
          }));

          this.setData({
            cityOptions,
            'apiStatus.citiesLoaded': true
          });
        } else {
          this.handleApiError(res);
        }
      },
      fail: this.handleNetworkError,
      complete: () => {
        this.setData({ isLoading: false });
      }
    });
  },

  // 检查图片是否存在
  checkImageExists(path) {
    try {
      const fs = wx.getFileSystemManager();
      return fs.accessSync(path) === undefined;
    } catch (e) {
      return false;
    }
  },

 // 从API获取景点图片
fetchAttractionImage(attraction) {
  return new Promise((resolve, reject) => {
    // 获取城市名称
    let cityName = '济南'; // 默认值
    if (attraction.city_id && this.data.cityOptions) {
      const city = this.data.cityOptions.find(c => c.value === attraction.city_id);
      if (city) cityName = city.label.replace(/市$/, '');
    }

    wx.request({
      url: `${app.globalData.apiBaseUrl}/api/attractions/image/`,
      method: 'GET',
      data: {
        name: attraction.name,
        city: cityName
      },
      success: (res) => {
        if (res.data.status === 'success' && res.data.image_url) {
          // 检查URL是否完整，如果不完整则补全
          const imageUrl = res.data.image_url.startsWith('http') ?
            res.data.image_url :
            `${app.globalData.mediaBaseUrl}${res.data.image_url}`;
          resolve(imageUrl);
        } else {
          reject(new Error('未获取到有效图片'));
        }
      },
      fail: (err) => {
        reject(err);
      }
    });
  });
},

 // 处理图片加载错误
handleImageError(e) {
  const { id, name, city } = e.currentTarget.dataset;
  console.log('图片加载失败:', name, id);

  // 设置加载状态
  this.setData({
    'currentAttraction.isLoadingImage': true
  });

  // 异步调用API获取新图片
  this.fetchAttractionImage({
    id: id,
    name: name,
    city_id: city
  }).then(imageUrl => {
    this.updateAttractionImage(id, name, imageUrl);
  }).catch(err => {
    console.error('获取图片失败:', err);
    this.setData({
      'currentAttraction.image': '/images/image-load-failed.jpg',
      'currentAttraction.isLoadingImage': false
    });
  });
},

// 更新景点图片
updateAttractionImage(id, name, newImageUrl) {
  // 更新当前景点图片
  if (this.data.currentAttraction &&
      (this.data.currentAttraction.id === id || this.data.currentAttraction.name === name)) {
    this.setData({
      'currentAttraction.image': newImageUrl,
      'currentAttraction.isLoadingImage': false
    });
  }

  // 更新planData中的对应景点图片
  if (this.data.planData && this.data.planData.days) {
    const updatedPlan = JSON.parse(JSON.stringify(this.data.planData));
    let updated = false;

    for (const day of updatedPlan.days) {
      for (const attraction of day.attractions) {
        if ((id && attraction.id === id) || (name && attraction.name === name)) {
          attraction.image = newImageUrl;
          updated = true;
          break;
        }
      }
      if (updated) break;
    }

    if (updated) {
      this.setData({ planData: updatedPlan });
    }
  }
},

// 图片加载成功处理
handleImageLoad(e) {
  console.log('图片加载成功', e.currentTarget.dataset.name);
  this.setData({
    'currentAttraction.isLoadingImage': false
  });
},
  // 选择天数
  selectDays(e) {
    this.setData({ selectedDays: e.currentTarget.dataset.value });
  },

  // 切换城市选择
  toggleCity(e) {
    const value = String(e.currentTarget.dataset.value);
    this.setData({
      selectedCity: this.data.selectedCity === value ? '' : value
    });
  },


  // 切换兴趣爱好
  toggleInterest(e) {
    const value = e.currentTarget.dataset.value;
    const index = this.data.selectedInterests.indexOf(value);
    let newInterests = [...this.data.selectedInterests];

    if (index === -1) {
      newInterests.push(value);
    } else {
      newInterests.splice(index, 1);
    }

    this.setData({ selectedInterests: newInterests });
  },

  // 选择交通方式
  selectTransport(e) {
    this.setData({ selectedTransport: e.currentTarget.dataset.value });
  },

  // 更新自定义需求
  updateCustomRequirements(e) {
    this.setData({ customRequirements: e.detail.value });
  },

  // 验证输入
  validateInputs() {
    if (!this.data.selectedCity) {
      wx.showToast({ title: '请至少选择一个城市', icon: 'none' });
      return false;
    }
    if (this.data.selectedDays < 1) {
      wx.showToast({ title: '请选择有效天数', icon: 'none' });
      return false;
    }
    return true;
  },

  // 下一步
  goToNextStep() {
    if (this.data.currentStep === 1) {
      if (!this.validateInputs()) return;

      // 检查登录状态
      const token = wx.getStorageSync('token');
      if (!token) {
        // 保存当前页面状态，用于登录后恢复
        this.savePageState();

        // 跳转到登录页并携带当前页面路径和参数
        wx.navigateTo({
          url: `/pages/login/login?redirect=${encodeURIComponent('/pages/ai-plan/ai-plan')}&action=generate`
        });
        return;
      }

      this.setData({ currentStep: 2 });
      this.generatePlanWithAI();
    } else if (this.data.currentStep === 2) {
      this.setData({ currentStep: 3 });
    }
  },

  // 保存页面状态
  savePageState() {
    const pageState = {
      selectedDays: this.data.selectedDays,
      selectedCity: this.data.selectedCity,
      selectedInterests: this.data.selectedInterests,
      selectedTransport: this.data.selectedTransport,
      customRequirements: this.data.customRequirements,
      currentStep: this.data.currentStep
    };

    wx.setStorageSync('aiPlanPageState', pageState);
  },
// 恢复页面状态
restorePageState() {
  const pageState = wx.getStorageSync('aiPlanPageState');
  if (pageState) {
    this.setData({
      selectedDays: pageState.selectedDays,
      selectedCity: pageState.selectedCity,
      selectedInterests: pageState.selectedInterests,
      selectedTransport: pageState.selectedTransport,
      customRequirements: pageState.customRequirements,
      currentStep: pageState.currentStep
    });

    // 清除保存的状态
    wx.removeStorageSync('aiPlanPageState');

    // 如果是在第二步，继续生成计划
    if (pageState.currentStep === 1) {
      this.setData({ currentStep: 2 });
      this.generatePlanWithAI();
    }
  }
},
  // 生成行程
  generatePlanWithAI() {
    if (this.data.isLoading) return;

    const token = wx.getStorageSync('token');
    console.log('token:', token);
    if (!token) {
      wx.showToast({
        title: '请先登录',
        icon: 'none'
      });
      // 保存当前页面状态
      this.savePageState();
      // 跳转到登录页并携带当前页面路径
      wx.navigateTo({
        url: `/pages/login/login?redirect=${encodeURIComponent('/pages/ai-plan/ai-plan')}`
      });
      return;
    }
    
    if (!this.validateInputs()) return;

    this.setData({
      isLoading: true,
      planGenerated: false,
      planData: null
    });

    const requestData = {
      city_ids: [Number(this.data.selectedCity)],
      days: Number(this.data.selectedDays),
      interests: [...this.data.selectedInterests, 'red-tourism'],
      transport: this.data.selectedTransport,
      custom_requirements: this.data.customRequirements
    };

    wx.request({
      url: app.globalData.apiBaseUrl + '/api/red-tourism/plan/',
      method: 'POST',
      data: requestData,
      header: {
        'Content-Type': 'application/json',
        'Authorization': 'Token ' + wx.getStorageSync('token')
      },
      success: (res) => {
        if (res.statusCode === 401) {
          // 处理token过期情况
          wx.removeStorageSync('token');
          wx.showToast({
            title: '登录已过期，请重新登录',
            icon: 'none'
          });
          wx.navigateTo({
            url: '/pages/login/login'
          });
          return;
        }
        console.log('API返回原始数据:', JSON.stringify(res.data));
        if (res.data?.days?.[0]?.attractions?.[0]) {
          console.log('首个景点数据结构:', res.data.days[0].attractions[0]);
        }
        if (res.statusCode === 200) {
          if (res.data && res.data.status === 'success' && res.data.data) {
            this.processAndShowPlan(res.data.data);
          } else {
            this.handleError('返回数据格式不正确');
          }
        } else {
          this.handleError(res.data?.message || `请求失败: ${res.statusCode}`);
        }
      },
      fail: (err) => {
        if (err.statusCode === 401) {
          wx.showToast({
            title: '登录已过期，请重新登录',
            icon: 'none'
          });
          // 清除无效的 token
          wx.removeStorageSync('token');
          // 跳转到登录页面
          wx.navigateTo({
            url: '/pages/login/login'
          });
        } else {
          this.handleError('网络请求失败，请检查连接');
        }
      },
      complete: () => {
        wx.hideLoading();
        this.setData({ isLoading: false });
      }
    });
  },

  // 处理并显示行程数据
  async processAndShowPlan(planData, isRegenerate = false) {
    try {
      // 获取所有景点的坐标
      const processedPlan = await this.getAttractionsCoordinates(planData);
      
      // 标准化处理后的数据
      const normalizedData = this.normalizePlanData(processedPlan);
      console.log('标准化后的数据:', JSON.stringify(normalizedData, null, 2));
      // 处理地图数据
      await this.processMapData(normalizedData.days);
      
      // 更新页面数据
      this.setData({
        planData: normalizedData,
        planGenerated: true,
        isLoading: false,
        lastGeneratedAt: new Date().toISOString(),
        isRegenerated: isRegenerate,
        mapLoaded: true,
        currentMapDay: -1 // 默认显示所有景点
      });
    } catch (error) {
      console.error('处理行程数据时出错:', error);
      this.handleError('处理行程数据时出错');
    }
  },
  
  // 通过高德地图API获取景点坐标
async getAttractionsCoordinates(planData) {
  const days = planData.days || [];
  const processedDays = [];
  
  for (const day of days) {
    const processedAttractions = [];
    
    for (const attraction of day.attractions) {
      try {
        // 如果已经有坐标则跳过
        if (attraction.location && attraction.location.latitude && attraction.location.longitude) {
          processedAttractions.push(attraction);
          continue;
        }
        
        // 优先通过高德地图API获取坐标
        let location;
        try {
          location = await this.getLocationFromAMap(attraction.name, attraction.address);
          console.log(`通过高德地图API获取到${attraction.name}的坐标:`, location);
        } catch (amapError) {
          console.warn(`高德地图API获取${attraction.name}坐标失败:`, amapError);
          
          // 如果高德地图API失败，检查API返回的原始坐标
          if (attraction.latitude && attraction.longitude) {
            location = {
              latitude: parseFloat(attraction.latitude),
              longitude: parseFloat(attraction.longitude)
            };
            console.log(`使用API返回的原始坐标:`, location);
          } else {
            // 如果都没有，使用默认坐标
            throw new Error('无可用坐标数据');
          }
        }
        
        // 更新景点坐标
        processedAttractions.push({
          ...attraction,
          location: {
            latitude: location.latitude,
            longitude: location.longitude
          }
        });
      } catch (error) {
        console.error(`获取景点${attraction.name}坐标失败:`, error);
        // 使用默认坐标
        processedAttractions.push({
          ...attraction,
          location: {
            latitude: 39.9042,  // 默认北京坐标
            longitude: 116.4074
          },
          _coord_status: 'default'
        });
      }
    }
    
    processedDays.push({
      ...day,
      attractions: processedAttractions
    });
  }
  
  return {
    ...planData,
    days: processedDays
  };
},

// 调用高德地图API获取坐标
getLocationFromAMap(name, address) {
  return new Promise((resolve, reject) => {
    // 构建查询参数
    const keywords = encodeURIComponent(name);
    const city = address ? encodeURIComponent(address.split('市')[0] || '') : '';
    
    wx.request({
      url: `https://restapi.amap.com/v3/place/text?keywords=${keywords}&city=${city}&output=json&key=${AMapKey}`,
      method: 'GET',
      success: (res) => {
        if (res.data.status === '1' && res.data.pois && res.data.pois.length > 0) {
          const location = res.data.pois[0].location.split(',');
          resolve({
            latitude: parseFloat(location[1]),
            longitude: parseFloat(location[0]),
            _coord_source: 'amap'
          });
        } else {
          reject(new Error('未找到该景点的坐标信息'));
        }
      },
      fail: (err) => {
        reject(new Error(`高德地图API请求失败: ${err.errMsg}`));
      }
    });
  });
},

  // 标准化行程数据
  normalizePlanData(planData) {
    // 默认行程模板
    const DEFAULT_PLAN = {
      title: '红色文化之旅',
      description: '通过参观革命历史遗址学习党史',
      statistics: {
        red_attractions_count: 0,
        total_attractions: 0,
        educational_points_count: 0,
        total_hours: 0
      },
      red_tourism_tips: [
        "请着装整洁，保持肃穆",
        "建议提前学习相关历史知识"
      ],
      suitable_for: "适合党员干部、学生团体等",
      days: [],
      education_goals: [
        "传承红色基因",
        "学习革命历史",
        "培养爱国情怀"
      ]
    };
  
    // 深度合并默认数据和API返回数据
    const normalizedData = this.deepMerge(DEFAULT_PLAN, planData);
  
    // 处理每日行程
    normalizedData.days = normalizedData.days.map((day, dayIndex) => {
      // 处理当天景点
      const attractions = day.attractions.map((attr, attrIndex) => {
        // 生成唯一ID 
        const attractionId = attr.id || `${dayIndex}-${attrIndex}`;
        
        // 处理图片路径
        const cleanName = attr.name ? attr.name.replace(/[^\w\u4e00-\u9fa5]/g, '') : '';
        const imageUrl = attr.image || `${app.globalData.mediaBaseUrl}/attractions/${encodeURIComponent(cleanName)}.png`;
        
        // 处理坐标 
        let location = {
          latitude: 36.6667,  // 济南纬度
          longitude: 117.0000 
        };
        
        if (attr.location) {
          location = {
            latitude: parseFloat(attr.location.latitude) || location.latitude,
            longitude: parseFloat(attr.location.longitude) || location.longitude
          };
        } else if (attr.latitude && attr.longitude) {
          location = {
            latitude: parseFloat(attr.latitude),
            longitude: parseFloat(attr.longitude)
          };
        }
  
        // 返回标准化后的景点数据 
        return {
          id: attractionId,
          name: attr.name || '红色教育基地',
          description: attr.description || '红色教育基地，具有重要的历史教育意义',
          image: imageUrl,
          is_red_tourism: attr.is_red_tourism !== false,
          visit_time: attr.visit_time || this.generateVisitTime(attrIndex),
          duration: attr.duration || 120,
          address: attr.address || '地址信息待补充',
          open_hours: attr.open_hours || "09:00-17:00",
          ticket_info: attr.ticket_info || "凭身份证免费参观",
          history_significance: attr.history_significance || "革命历史重要遗址",
          location: location,
          educational_value: attr.educational_value || "高",
          visiting_etiquette: attr.visiting_etiquette || [
            "请保持庄严肃穆",
            "勿大声喧哗",
            "纪念馆内请勿拍照"
          ]
        };
      });
  
      // 生成当日总结
      const summary = day.summary || this.generateDaySummary(
        day.theme || '红色教育',
        attractions.filter(a => a.is_red_tourism)
      );
  
      // 返回标准化后的每日数据 
      return {
        day: day.day || dayIndex + 1,
        theme: day.theme || '红色教育',
        transport: day.transport || this.data.selectedTransport || '公共交通',
        attractions: attractions,
        summary: summary,
        schedule: this.createDailySchedule(attractions, day.transport),
        travel_tips: day.travel_tips || [
          "建议穿着舒适鞋子",
          "携带饮用水和防晒用品"
        ]
      };
    });
  
    // 计算统计数据 
    normalizedData.statistics = {
      red_attractions_count: normalizedData.days.reduce((count, day) => 
        count + day.attractions.filter(a => a.is_red_tourism).length, 0),
      total_attractions: normalizedData.days.reduce((count, day) => 
        count + day.attractions.length, 0),
      educational_points_count: normalizedData.days.reduce((count, day) => 
        count + day.attractions.filter(a => a.is_red_tourism).length * 2, 0),
      total_hours: normalizedData.days.length * 8 // 每天按8小时计算
    };
  
    return normalizedData;
  },

// 辅助方法：获取图片处理统计信息
getImageResolutionStats(days) {
  const stats = {
      total: 0,
      resolved: 0,
      default_used: 0,
      missing_ids: []
  };

  days.forEach(day => {
      day.attractions.forEach(attraction => {
          stats.total++;
          if (attraction.image !== '/images/default-attraction.jpg') {
              stats.resolved++;
          } else {
              stats.default_used++;
              if (!attraction.id) stats.missing_ids.push('unknown');
          }
      });
  });

  return stats;
},


// 辅助方法：生成每日总结
generateDaySummary(theme, redAttractions) {
  const attractionNames = redAttractions.map(a => a.name).join('、');
  return `今日主题为"${theme}"，参观了${redAttractions.length}个红色教育基地${
      attractionNames ? `，包括${attractionNames}` : ''
  }。通过实地参观学习，加深了对革命历史的理解和认识。`;
},

// 辅助方法：创建每日行程安排
createDailySchedule(attractions, transport) {
  const timeSlots = ["09:00", "11:00", "14:00", "16:00"];
  return attractions.map((att, index) => ({
      time: timeSlots[index] || "10:00",
      duration: att.duration || 120,
      attraction: {
          id: att.id,
          name: att.name,
          image: att.image,
          is_red_tourism: att.is_red_tourism
      },
      transport: index < attractions.length - 1 ? transport : null,
      transport_duration: "约30分钟",
      transport_cost: this.getTransportCost(transport),
      notes: [
          `建议参观时间：${att.visit_time || '1-2小时'}`,
          att.ticket_info || '门票信息：免费'
      ]
  }));
},

// 辅助方法：获取交通费用估算
getTransportCost(transportType) {
  const costs = {
      'public': '约5-10元/人',
      'drive': '油费约20-50元',
      'walk': '免费',
      'bike': '免费'
  };
  return costs[transportType] || '费用待定';
},

// 辅助方法：生成参观时间
generateVisitTime(index) {
  const times = ["09:00-11:00", "11:00-13:00", "14:00-16:00", "16:00-18:00"];
  return times[index] || "10:00-12:00";
},

// 辅助方法：深度合并对象
deepMerge(target, source) {
  if (typeof source !== 'object' || source === null) {
      return target;
  }

  for (const key in source) {
      if (source.hasOwnProperty(key)) {
          if (typeof source[key] === 'object' && source[key] !== null && !Array.isArray(source[key])) {
              if (!target[key]) {
                  target[key] = {};
              }
              this.deepMerge(target[key], source[key]);
          } else {
              target[key] = source[key];
          }
      }
  }
  return target;
},

 // 处理地图数据
processMapData(days, selectedDay = -1) {
  if (!days || !days.length) {
    console.warn('没有有效的行程数据');
    return;
  }

  // 定义不同天数的颜色
  const dayColors = [
    '#e54d42', // 红色 - 第一天
    '#f37b1d', // 橙色 - 第二天
    '#1cbbb4', // 青色 - 第三天
    '#0081ff', // 蓝色 - 第四天
    '#6739b6', // 紫色 - 第五天
    '#9c26b0', // 紫红色 - 第六天
    '#e03997'  // 粉红色 - 第七天
  ];

  // 准备地图数据
  const markers = [];
  const polylines = [];
  const includePoints = [];

  // 处理每一天的景点
  days.forEach((day, dayIndex) => {
    // 如果指定了天数且不是当前天数，则跳过
    if (selectedDay !== -1 && dayIndex !== selectedDay) return;

    const dayColor = dayColors[dayIndex % dayColors.length];
    const dayPoints = [];

    // 处理当天景点
    day.attractions.forEach((attraction, attrIndex) => {
      const markerId = dayIndex * 100 + attrIndex;
      
      // 创建标记点
      markers.push({
        id: markerId,
        latitude: attraction.location.latitude,
        longitude: attraction.location.longitude,
        iconPath: '/images/marker-default.png',
        width: 24,
        height: 24,
        callout: {
          content: `第${day.day}天 ${attrIndex + 1}. ${attraction.name}`,
          color: '#333',
          fontSize: 14,
          borderRadius: 4,
          display: 'BYCLICK'
        },
        customData: {
          dayIndex,
          attrIndex,
          dayNumber: day.day
        },
        label: {
          content: `第${day.day}天 ${attrIndex + 1}`,
          color: dayColor,
          fontSize: 12,
          bgColor: '#ffffff',
          padding: 4,
          borderRadius: 4,
          borderWidth: 1,
          borderColor: dayColor
        }
      });
      
      dayPoints.push({
        latitude: attraction.location.latitude,
        longitude: attraction.location.longitude
      });
    });

    // 添加当天路线
    if (dayPoints.length > 1) {
      polylines.push({
        points: dayPoints,
        color: dayColor,
        width: 4,
        arrowLine: true,
        dottedLine: false
      });
    }

    // 添加到总集合
    includePoints.push(...dayPoints);
  });

  // 计算地图中心点和缩放级别
  const { center, scale } = this.calculateMapViewport(includePoints);

  // 更新地图数据
  this.setData({
    'mapData.markers': markers,
    'mapData.polyline': polylines,
    'mapData.latitude': center.latitude,
    'mapData.longitude': center.longitude,
    'mapData.scale': scale,
    'mapData.showMap': true,
    'mapData.includePoints': includePoints,
    'mapData.dayColors': dayColors
  });

  // 播放路线动画
  this.playRouteAnimation();
},
  
  // 计算地图视野
  calculateMapViewport(points) {
    if (!points || points.length === 0) {
      return {
        center: { latitude: 39.9042, longitude: 116.4074 },
        scale: 12
      };
    }

    // 计算所有点的边界
    const lats = points.map(p => p.latitude);
    const lngs = points.map(p => p.longitude);
    
    const minLat = Math.min(...lats);
    const maxLat = Math.max(...lats);
    const minLng = Math.min(...lngs);
    const maxLng = Math.max(...lngs);

    // 计算中心点
    const center = {
      latitude: (minLat + maxLat) / 2,
      longitude: (minLng + maxLng) / 2
    };

    // 计算缩放级别
    const latRange = maxLat - minLat;
    const lngRange = maxLng - minLng;
    const maxRange = Math.max(latRange, lngRange);
    
    // 根据范围大小调整缩放级别
    let scale = 15 - Math.floor(maxRange * 15);
    scale = Math.max(10, Math.min(scale, 17));

    return { center, scale };
  },

  // 初始化地图控件
  initMapControls() {
    this.mapCtx = wx.createMapContext('routeMap', this);
    
    // 确保这些方法已经定义
    if (typeof this.handleRegionChange === 'function' && 
        typeof this.handleMarkerTap === 'function') {
      this.setData({
        handleRegionChange: this.handleRegionChange.bind(this),
        handleMarkerTap: this.handleMarkerTap.bind(this)
      });
    } else {
      console.error('地图事件处理方法未定义');
      // 提供默认的空函数
      this.setData({
        handleRegionChange: () => {},
        handleMarkerTap: () => {}
      });
    }
  },
  handleRegionChange(e) {
    console.log('地图区域变化:', e);
    // 可以在这里添加地图区域变化时的处理逻辑
  },

  // 景点详情显示处理
  handleMarkerTap(e) {
    const markerId = e.detail.markerId;
    const marker = this.data.mapData.markers.find(m => m.id === markerId);
    
    if (!marker || !this.data.planData || !this.data.planData.days) {
      console.error('无法找到标记或行程数据');
      return;
    }
    
    const { dayIndex, attrIndex } = marker.customData;
    const attraction = this.data.planData.days[dayIndex].attractions[attrIndex];
    
    if (!attraction) {
      console.error('无法找到景点数据');
      return;
    }
    
    // 显示加载状态
    this.setData({
      showAttractionDetail: true,
      currentAttraction: {
        ...attraction,
        isLoadingImage: true  // 添加加载状态
      },
      attractionDetail: {
        name: attraction.name,
        image: '/images/placeholder-image.jpg', // 先显示占位图
        description: attraction.description,
        history: attraction.history_significance,
        address: attraction.address,
        open_hours: attraction.open_hours,
        ticket_info: attraction.ticket_info,
        visiting_etiquette: attraction.visiting_etiquette || [
          "请保持庄严肃穆",
          "勿大声喧哗",
          "纪念馆内请勿拍照"
        ],
        location: attraction.location
      }
    });
    
    // 自动获取景点图片
    this.fetchAttractionImage(attraction)
      .then(imageUrl => {
        // 更新景点图片
        this.setData({
          'currentAttraction.image': imageUrl,
          'currentAttraction.isLoadingImage': false,
          'attractionDetail.image': imageUrl
        });
        
        // 同时更新planData中的对应景点图片
        this.updateAttractionImage(attraction.id, attraction.name, imageUrl);
      })
      .catch(err => {
        console.error('获取景点图片失败:', err);
        // 使用默认图片
        this.setData({
          'currentAttraction.image': '/images/default-attraction.jpg',
          'currentAttraction.isLoadingImage': false,
          'attractionDetail.image': '/images/default-attraction.jpg'
        });
      });
  },
 // 切换地图显示的天数
switchMapDay(e) {
  const dayIndex = e.currentTarget.dataset.day;
  this.setData({
    currentMapDay: dayIndex
  });
  
  // 重新处理地图数据，只显示选中天数的景点
  this.processMapData(this.data.planData.days, dayIndex);
},

  // 地图缩放控制
  handleZoomIn() {
    this.setData({
      'mapData.scale': Math.min(this.data.mapData.scale + 1, 18)
    });
  },

  handleZoomOut() {
    this.setData({
      'mapData.scale': Math.max(this.data.mapData.scale - 1, 10)
    });
  },

  // 重新定位到所有景点
resetToAllAttractions() {
  this.setData({
    currentMapDay: -1
  });
  
  // 重新处理地图数据，显示所有景点
  this.processMapData(this.data.planData.days);
},

  // 播放路线动画
  playRouteAnimation() {
    if (this.data.mapData.polyline.length === 0) return;
    
    // 初始状态：所有路线半透明
    const transparentPolylines = this.data.mapData.polyline.map(line => ({
      ...line,
      color: line.color + '80' // 添加透明度
    }));
    
    this.setData({
      'mapData.polyline': transparentPolylines
    });
    
    // 逐个显示路线
    let i = 0;
    const timer = setInterval(() => {
      if (i >= this.data.mapData.polyline.length) {
        clearInterval(timer);
        return;
      }
      
      const updatedPolylines = [...this.data.mapData.polyline];
      updatedPolylines[i] = {
        ...updatedPolylines[i],
        color: this.data.mapData.polyline[i].color.replace('80', '') // 移除透明度
      };
      
      this.setData({
        'mapData.polyline': updatedPolylines
      });
      i++;
    }, 500);
  },

  // 导航到景点
  navigateToAttraction() {
    if (!this.data.currentAttraction || !this.data.currentAttraction.location) {
      wx.showToast({ title: '无法获取景点位置', icon: 'none' });
      return;
    }
    
    const { latitude, longitude } = this.data.currentAttraction.location;
    const name = this.data.currentAttraction.name || '红色教育基地';
    
    wx.openLocation({
      latitude,
      longitude,
      name,
      scale: 18
    });
  },

  // 生成每日总结
  generateDaySummary(day, attractions) {
    const redAttractions = attractions.filter(att => att.is_red_tourism);
    const attractionNames = redAttractions.map(att => att.name).join('、');
    
    return `今日参观了${redAttractions.length}个红色教育基地${
      attractionNames ? `，包括${attractionNames}` : ''
    }，${day.summary || '通过实地参观加深了对革命历史的理解。'}`;
  },

  // 创建每日行程安排
  createDailySchedule(attractions, transport) {
    const timeSlots = ["09:00", "11:00", "14:00", "16:00"];
    
    return attractions.map((att, index) => ({
      time: timeSlots[index] || "10:00",
      duration: 120,
      attraction: att,
      transport: index < attractions.length - 1 ? transport : null,
      transport_duration: "约30分钟",
      transport_cost: this.getTransportCost(transport)
    }));
  },

  // 获取交通费用估算
  getTransportCost(transportType) {
    const costs = {
      'public': '约5-10元/人',
      'drive': '油费约20-50元',
      'walk': '免费',
      'bike': '免费'
    };
    return costs[transportType] || '费用待定';
  },

  // 计算统计数据
  calculateStatistics(days) {
    let redCount = 0;
    let totalHours = 0;
    
    days.forEach(day => {
      redCount += day.attractions.filter(a => a.is_red_tourism).length;
      totalHours += 8; // 每天按8小时计算
    });
    
    return {
      red_attractions_count: redCount,
      learning_points: redCount * 2,
      total_hours: totalHours,
      total_days: days.length
    };
  },

  // 获取红色景点图片
  getRedTourismImage(isRed) {
    const images = {
      true: '/images/red-attraction.jpg',
      false: '/images/normal-attraction.jpg'
    };
    return images[isRed] || '/images/default-attraction.jpg';
  },

  // 生成参观时间
  generateVisitTime(index) {
    const times = ["09:00", "11:00", "14:00", "16:00"];
    return times[index] || "10:00";
  },

  // 深度合并对象
  deepMerge(target, source) {
    if (typeof source !== 'object' || source === null) {
      return target;
    }

    for (const key in source) {
      if (source.hasOwnProperty(key)) {
        if (typeof source[key] === 'object' && source[key] !== null && !Array.isArray(source[key])) {
          if (!target[key]) {
            target[key] = {};
          }
          this.deepMerge(target[key], source[key]);
        } else {
          target[key] = source[key];
        }
      }
    }
    return target;
  },

  // 显示景点详情
  async showAttractionDetail(e) {
    const attraction = e.currentTarget.dataset.attraction;
    
    // 设置当前景点信息，并标记图片正在加载
    this.setData({
      showAttractionDetail: true,
      currentAttraction: {
        ...attraction,
        isLoadingImage: true,
        image: '/images/placeholder-image.jpg' // 临时占位图
      },
      isFavorite: false // 先设置为false，等异步检查完成后再更新
    });
  
  
    // 自动获取景点图片
    this.fetchAttractionImage(attraction).then(imageUrl => {
      this.setData({
        'currentAttraction.image': imageUrl,
        'currentAttraction.isLoadingImage': false
      });
    }).catch(err => {
      console.error('获取景点图片失败:', err);
      this.setData({
        'currentAttraction.isLoadingImage': false,
        'currentAttraction.image': '/images/image-load-failed.jpg' // 加载失败的图片
      });
    });
  },

  // 计算两点间距离
  calculateDistance(loc1, loc2) {
    if (!loc1 || !loc2) return 0;
    const R = 6371; // 地球半径(km)
    const dLat = (loc2.latitude - loc1.latitude) * Math.PI / 180;
    const dLon = (loc2.longitude - loc1.longitude) * Math.PI / 180;
    const a = 
      Math.sin(dLat/2) * Math.sin(dLat/2) +
      Math.cos(loc1.latitude * Math.PI / 180) * 
      Math.cos(loc2.latitude * Math.PI / 180) * 
      Math.sin(dLon/2) * Math.sin(dLon/2);
    const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
    return R * c;
  },

  // 导航到景点
  navigateToAttraction() {
    const { currentAttraction } = this.data;
    if (!currentAttraction || !currentAttraction.location) {
      wx.showToast({ title: '无法获取景点位置', icon: 'none' });
      return;
    }
    
    wx.showLoading({ title: '准备导航中', mask: true });
    
    // 检查位置权限
    wx.authorize({
      scope: 'scope.userLocation',
      success: () => {
        wx.openLocation({
          latitude: currentAttraction.location.latitude,
          longitude: currentAttraction.location.longitude,
          name: currentAttraction.name,
          scale: 18,
          complete: () => {
            wx.hideLoading();
          }
        });
      },
      fail: () => {
        wx.hideLoading();
        wx.showModal({
          title: '权限不足',
          content: '需要获取您的位置信息才能导航',
          confirmText: '去设置',
          success: (res) => {
            if (res.confirm) {
              wx.openSetting();
            }
          }
        });
      }
    });
  },

  // 关闭弹窗
  closeAttractionDetail() {
    this.setData({ showAttractionDetail: false });
  },


 // 查找景点对象
findAttractionById(id) {
  if (!this.data.planData || !this.data.planData.days) return null;
  
  for (const day of this.data.planData.days) {
      for (const attr of day.attractions) {
          if (attr.id === id) return attr;
      }
  }
  return null;
},

 // 保存行程
 savePlan() {
  if (!this.data.planData) {
    wx.showToast({ title: '没有可保存的行程', icon: 'none' });
    return;
  }

  wx.showLoading({ title: '保存中...', mask: true });
  this.setData({ isLoading: true });

  const planData = this.data.planData;
  
  // 获取本地存储的token
  const token = wx.getStorageSync('token');
  if (!token) {
    wx.showToast({ title: '请先登录', icon: 'none' });
    wx.hideLoading();
    this.setData({ isLoading: false });
    return;
  }

  wx.request({
    url: app.globalData.apiBaseUrl + '/api/red-tourism/save-plan/',
    method: 'POST',
    data: {
      plan_data: planData,
      city_ids: [Number(this.data.selectedCity)] // 添加城市ID
    },
    header: {
      'Content-Type': 'application/json',
      'Authorization': 'Token ' + wx.getStorageSync('token') // 添加token到请求头
    },
    success: (res) => {
      if (res.statusCode === 201) {
        wx.showToast({ 
          title: '保存成功', 
          icon: 'success',
          duration: 2000
        });
        this.setData({ currentStep: 3 });
      } else {
        this.handleApiError(res);
      }
    },
    fail: (err) => {
      this.handleNetworkError(err);
    },
    complete: () => {
      wx.hideLoading();
      this.setData({ isLoading: false });
    }
  });
},

// 处理API错误
handleApiError(res) {
  let errorMsg = '保存失败，请稍后再试';
  
  if (res.data?.message) {
    errorMsg = res.data.message;
  } else if (res.statusCode === 401) {
    errorMsg = '请先登录';
    // 可以在这里添加跳转到登录页面的逻辑
    wx.navigateTo({
      url: '/pages/login/login'
    });
  } else if (res.statusCode === 400) {
    if (res.data?.errors) {
      errorMsg = Object.values(res.data.errors).join('\n');
    } else {
      errorMsg = '数据格式不正确';
    }
  }
  
  wx.showToast({ 
    title: errorMsg, 
    icon: 'none',
    duration: 3000
  });
},

// 处理网络错误
handleNetworkError(err) {
  let errorMsg = '网络连接失败';
  
  if (err.errMsg.includes('timeout')) {
    errorMsg = '请求超时，请检查网络连接';
  }
  
  wx.showToast({ 
    title: errorMsg, 
    icon: 'none',
    duration: 2000
  });
},

 // 重新生成行程
 regeneratePlan() {
  if (this.data.isRegenerating) return;
  this.setData({ isRegenerating: true });
  wx.showLoading({ title: '正在重新规划...', mask: true });

  // 修正请求数据结构
  const requestData = {
    plan_id: this.data.planData?.id || null,
    city_ids: [Number(this.data.selectedCity)],
    days: Number(this.data.selectedDays),
    interests: [...this.data.selectedInterests, 'red-tourism'],
    transport: this.data.selectedTransport,
    custom_requirements: this.data.customRequirements,
    previous_plan: this.data.planData || { days: [] } // 确保有这个字段
  };

  console.log('重新规划请求数据:', JSON.stringify(requestData));

  wx.request({
    url: app.globalData.apiBaseUrl + '/api/red-tourism/regenerate/',
    method: 'POST',
    data: requestData,
    header: {
      'Content-Type': 'application/json',
      'Authorization': 'Token ' + wx.getStorageSync('token')
    },
    success: (res) => {
      console.log('重新规划响应:', res);
      if (res.statusCode === 200) {
        if (res.data && res.data.status === 'success' && res.data.data) {
          this.processAndShowPlan(res.data.data, true);
          wx.showToast({ 
            title: '重新生成成功', 
            icon: 'success',
            duration: 2000
          });
        } else {
          this.handleError(res.data?.message || '返回数据格式不正确');
        }
      } else {
        // 显示详细的错误信息
        let errorMsg = `请求失败: ${res.statusCode}`;
        if (res.data && res.data.errors) {
          errorMsg += ` - ${JSON.stringify(res.data.errors)}`;
        }
        this.handleError(errorMsg);
      }
    },
    fail: (err) => {
      console.error('重新规划请求失败:', err);
      this.handleError('网络请求失败，请检查连接');
    },
    complete: () => {
      this.setData({ isRegenerating: false });
      wx.hideLoading();
    }
  });
},

  // 查看完整行程
  viewPlan() {
    wx.navigateTo({
      url: '/pages/plan-detail/plan-detail?plan=' + 
           encodeURIComponent(JSON.stringify(this.data.planData)) +
           '&is_red_tourism=true'
    });
  },

  // 分享行程
  sharePlan() {
    if (!this.data.planData) return;
    wx.showShareMenu({ withShareTicket: true });
  },

  onShareAppMessage() {
    if (!this.data.planData) return {};
    
    return {
      title: this.data.planData.title || '我的红色之旅行程',
      path: '/pages/plan-detail/plan-detail?plan=' + 
            encodeURIComponent(JSON.stringify(this.data.planData)) +
            '&is_red_tourism=true',
      imageUrl: this.data.planData.days[0]?.attractions[0]?.image || 
               '/images/red-tourism-share.jpg'
    };
  },

  // 错误处理
  handleError(message) {
    console.error('Error:', message);
    wx.showToast({
      title: message,
      icon: 'none',
      duration: 2000
    });
    this.setData({ 
      currentStep: 1,
      isLoading: false,
      planGenerated: false
    });
  },

  handleApiError(res) {
    let errorMsg = '请求失败，请稍后再试';
    
    if (res.data?.message) {
      errorMsg = res.data.message;
    } else if (res.statusCode === 400) {
      errorMsg = '输入数据有误，请检查后重试';
    } else if (res.statusCode === 500) {
      errorMsg = '服务器错误，请稍后再试';
    }
    
    wx.showToast({ title: errorMsg, icon: 'none' });
    this.setData({ isLoading: false });
  },

  handleNetworkError(err) {
    let errorMsg = '网络连接失败';
    
    if (err.errMsg.includes('timeout')) {
      errorMsg = '请求超时，请检查网络连接';
    }
    
    wx.showToast({ title: errorMsg, icon: 'none' });
    this.setData({ isLoading: false });
  },

  // 返回上一步
  navigateBack() {
    if (this.data.currentStep > 1) {
      this.setData({ currentStep: this.data.currentStep - 1 });
    } else {
      wx.navigateBack();
    }
  },

  viewPlan() {
    wx.navigateTo({ url: '/pages/wodexingcheng/wodexingcheng' });
  },


});