// 智能饭菜规划页面逻辑
Page({
  data: {
    // 表单数据
    regionIndex: 0,
    regionOptions: ['全国', '北方', '南方', '川菜', '粤菜', '鲁菜', '苏菜', '浙菜', '闽菜', '湘菜', '徽菜'],
    dinerCountIndex: 1,
    dinerCountOptions: ['1人', '2人', '3人', '4人', '5人', '6人', '8人', '10人'],
    mealTypeIndex: 1,
    mealTypeOptions: ['早餐', '午餐', '晚餐', '全天'],
    hometown: '',
    preferences: '',
    dietaryRestrictions: '',
    budgetIndex: 1,
    budgetOptions: ['50元以下', '50-100元', '100-150元', '150-200元', '200-300元', '300-500元', '500元以上'],
    
    // 状态数据
    isGenerating: false,
    mealPlanResult: '',
    
    // API配置
    apiBaseUrl: 'https://your-domain.com/api'
  },

  onLoad() {
    console.log('饭菜规划页面加载');
  },

  // 地区类型选择
  onRegionChange(e) {
    this.setData({
      regionIndex: e.detail.value
    });
  },

  // 就餐人数选择
  onDinerCountChange(e) {
    this.setData({
      dinerCountIndex: e.detail.value
    });
  },

  // 用餐类型选择
  onMealTypeChange(e) {
    this.setData({
      mealTypeIndex: e.detail.value
    });
  },

  // 家乡输入
  onHometownInput(e) {
    this.setData({
      hometown: e.detail.value
    });
  },

  // 个人喜好输入
  onPreferencesInput(e) {
    this.setData({
      preferences: e.detail.value
    });
  },

  // 饮食禁忌输入
  onDietaryRestrictionsInput(e) {
    this.setData({
      dietaryRestrictions: e.detail.value
    });
  },

  // 预算选择
  onBudgetChange(e) {
    this.setData({
      budgetIndex: e.detail.value
    });
  },

  // 生成饭菜规划
  async generateMealPlan() {
    // 验证必填字段
    if (!this.data.hometown.trim()) {
      wx.showToast({
        title: '请输入用餐者家乡',
        icon: 'none'
      });
      return;
    }

    // 设置生成状态
    this.setData({
      isGenerating: true
    });

    try {
      // 构建请求数据
      const requestData = {
        region_type: this.data.regionOptions[this.data.regionIndex],
        diner_count: this.data.dinerCountOptions[this.data.dinerCountIndex],
        meal_type: this.data.mealTypeOptions[this.data.mealTypeIndex],
        hometown: this.data.hometown,
        preferences: this.data.preferences,
        dietary_restrictions: this.data.dietaryRestrictions,
        budget: this.data.budgetOptions[this.data.budgetIndex]
      };

      // 发送请求
      const response = await wx.request({
        url: `${this.data.apiBaseUrl}/meal-planning/generate`,
        method: 'POST',
        data: requestData,
        header: {
          'Content-Type': 'application/json'
        }
      });

      if (response.data.success) {
        // 处理Markdown格式的结果
        const formattedResult = this.formatMarkdownToHtml(response.data.data.meal_plan);
        this.setData({
          mealPlanResult: formattedResult
        });

        wx.showToast({
          title: '生成成功！',
          icon: 'success'
        });

        // 滚动到结果区域
        wx.pageScrollTo({
          selector: '.result-container',
          duration: 500
        });
      } else {
        throw new Error(response.data.message || '生成失败');
      }
    } catch (error) {
      console.error('生成饭菜规划失败:', error);
      wx.showToast({
        title: error.message || '生成失败，请重试',
        icon: 'none'
      });
    } finally {
      this.setData({
        isGenerating: false
      });
    }
  },

  // 格式化Markdown为HTML
  formatMarkdownToHtml(text) {
    return text
      .replace(/^### (.*$)/gim, '<h3>$1</h3>')
      .replace(/^## (.*$)/gim, '<h2>$1</h2>')
      .replace(/^# (.*$)/gim, '<h1>$1</h1>')
      .replace(/\*\*(.*)\*\*/gim, '<strong>$1</strong>')
      .replace(/\*(.*)\*/gim, '<em>$1</em>')
      .replace(/^\* (.*$)/gim, '<li>$1</li>')
      .replace(/^\d+\. (.*$)/gim, '<li>$1</li>')
      .replace(/\n\n/gim, '</p><p>')
      .replace(/\n/gim, '<br>')
      .replace(/^(.*)$/gim, '<p>$1</p>');
  },

  // 复制结果
  copyResult() {
    if (!this.data.mealPlanResult) {
      wx.showToast({
        title: '没有可复制的内容',
        icon: 'none'
      });
      return;
    }

    // 提取纯文本内容
    const textContent = this.data.mealPlanResult.replace(/<[^>]*>/g, '');
    
    wx.setClipboardData({
      data: textContent,
      success: () => {
        wx.showToast({
          title: '已复制到剪贴板',
          icon: 'success'
        });
      },
      fail: () => {
        wx.showToast({
          title: '复制失败',
          icon: 'none'
        });
      }
    });
  },

  // 保存结果
  async saveResult() {
    if (!this.data.mealPlanResult) {
      wx.showToast({
        title: '没有可保存的内容',
        icon: 'none'
      });
      return;
    }

    try {
      // 构建保存数据
      const saveData = {
        meal_plan_content: this.data.mealPlanResult.replace(/<[^>]*>/g, ''),
        region_type: this.data.regionOptions[this.data.regionIndex],
        diner_count: this.data.dinerCountOptions[this.data.dinerCountIndex],
        meal_type: this.data.mealTypeOptions[this.data.mealTypeIndex],
        hometown: this.data.hometown,
        preferences: this.data.preferences,
        dietary_restrictions: this.data.dietaryRestrictions,
        budget: this.data.budgetOptions[this.data.budgetIndex]
      };

      // 发送保存请求
      const response = await wx.request({
        url: `${this.data.apiBaseUrl}/meal-planning/save`,
        method: 'POST',
        data: saveData,
        header: {
          'Content-Type': 'application/json'
        }
      });

      if (response.data.success) {
        wx.showToast({
          title: '保存成功！',
          icon: 'success'
        });
      } else {
        throw new Error(response.data.message || '保存失败');
      }
    } catch (error) {
      console.error('保存饭菜规划失败:', error);
      wx.showToast({
        title: error.message || '保存失败，请重试',
        icon: 'none'
      });
    }
  },

  // 页面分享
  onShareAppMessage() {
    return {
      title: '智能饭菜规划 - AI驱动的个性化饭菜清单规划师',
      path: '/pages/meal-planning/meal-planning',
      imageUrl: '/images/meal-planning-share.jpg'
    };
  },

  // 分享到朋友圈
  onShareTimeline() {
    return {
      title: '智能饭菜规划 - AI驱动的个性化饭菜清单规划师',
      imageUrl: '/images/meal-planning-share.jpg'
    };
  }
});