添加销量数据图表功能，支持显示箱数和重量变化趋势，优化数据加载和空状态提示

src/views/plan/EquipmentStatus.vue

@@ -902,6 +902,28 @@ const updateCharts = () => {
       
       const totalNumberData = historyData.value.map(item => item.total_number);
       
+      // 准备销量数据，按日期聚合
+      let salesBoxCountData = [];
+      if (salesData.value && salesData.value.length > 0) {
+        // 创建一个映射，键为日期，值为当天总箱数
+        const salesBoxCountMap = {};
+        salesData.value.forEach(item => {
+          const date = new Date(item.date);
+          const dateStr = `${date.getMonth() + 1}/${date.getDate()}`;
+          if (!salesBoxCountMap[dateStr]) {
+            salesBoxCountMap[dateStr] = 0;
+          }
+          salesBoxCountMap[dateStr] += item.box_count;
+        });
+        
+        // 将销量数据映射到时间轴上
+        salesBoxCountData = timeData.map(timeStr => {
+          // 从时间字符串中提取日期部分（去掉时间部分）
+          const dateStr = timeStr.split(' ')[0];
+          return salesBoxCountMap[dateStr] || 0;
+        });
+      }
+      
       const totalNumberOption = {
         title: {
           text: '总箱数变化趋势',
@@ -911,12 +933,24 @@ const updateCharts = () => {
           }
         },
         tooltip: {
-          trigger: 'axis'
+          trigger: 'axis',
+          formatter: function(params) {
+            let result = params[0].name + '<br/>';
+            params.forEach(param => {
+              result += `${param.seriesName}: ${param.value} 箱<br/>`;
+            });
+            return result;
+          }
+        },
+        legend: {
+          data: ['生产箱数', '销量箱数'],
+          top: 30
         },
         grid: {
           left: '3%',
           right: '4%',
           bottom: '3%',
+          top: 60,
           containLabel: true
         },
         xAxis: {
@@ -930,17 +964,29 @@ const updateCharts = () => {
           type: 'value',
           name: '箱数'
         },
-        series: [{
-          data: totalNumberData,
-          type: 'line',
-          smooth: true,
-          itemStyle: {
-            color: '#409EFF'
+        series: [
+          {
+            name: '生产箱数',
+            data: totalNumberData,
+            type: 'line',
+            smooth: true,
+            itemStyle: {
+              color: '#409EFF'
+            },
+            areaStyle: {
+              opacity: 0.3
+            }
           },
-          areaStyle: {
-            opacity: 0.3
+          {
+            name: '销量箱数',
+            data: salesBoxCountData,
+            type: 'line',
+            smooth: true,
+            itemStyle: {
+              color: '#E6A23C'
+            }
           }
-        }]
+        ]
       };
       totalNumberChart.setOption(totalNumberOption, true); // true表示不合并选项
     }
@@ -954,6 +1000,28 @@ const updateCharts = () => {
       
       const totalNetWeightData = historyData.value.map(item => item.total_net_weight);
       
+      // 准备销量数据，按日期聚合
+      let salesWeightData = [];
+      if (salesData.value && salesData.value.length > 0) {
+        // 创建一个映射，键为日期，值为当天总重量
+        const salesWeightMap = {};
+        salesData.value.forEach(item => {
+          const date = new Date(item.date);
+          const dateStr = `${date.getMonth() + 1}/${date.getDate()}`;
+          if (!salesWeightMap[dateStr]) {
+            salesWeightMap[dateStr] = 0;
+          }
+          salesWeightMap[dateStr] += item.weight;
+        });
+        
+        // 将销量数据映射到时间轴上
+        salesWeightData = timeData.map(timeStr => {
+          // 从时间字符串中提取日期部分（去掉时间部分）
+          const dateStr = timeStr.split(' ')[0];
+          return salesWeightMap[dateStr] || 0;
+        });
+      }
+      
       const totalNetWeightOption = {
         title: {
           text: '总净重变化趋势',
@@ -965,14 +1033,22 @@ const updateCharts = () => {
         tooltip: {
           trigger: 'axis',
           formatter: function(params) {
-            return params[0].name + '<br/>' + 
-                   params[0].seriesName + ': ' + params[0].value + 'kg';
+            let result = params[0].name + '<br/>';
+            params.forEach(param => {
+              result += `${param.seriesName}: ${param.value} kg<br/>`;
+            });
+            return result;
           }
         },
+        legend: {
+          data: ['生产净重', '销量净重'],
+          top: 30
+        },
         grid: {
           left: '3%',
           right: '4%',
           bottom: '3%',
+          top: 60,
           containLabel: true
         },
         xAxis: {
@@ -986,18 +1062,29 @@ const updateCharts = () => {
           type: 'value',
           name: '重量(kg)'
         },
-        series: [{
-          name: '总净重',
-          data: totalNetWeightData,
-          type: 'line',
-          smooth: true,
-          itemStyle: {
-            color: '#67C23A'
+        series: [
+          {
+            name: '生产净重',
+            data: totalNetWeightData,
+            type: 'line',
+            smooth: true,
+            itemStyle: {
+              color: '#67C23A'
+            },
+            areaStyle: {
+              opacity: 0.3
+            }
           },
-          areaStyle: {
-            opacity: 0.3
+          {
+            name: '销量净重',
+            data: salesWeightData,
+            type: 'line',
+            smooth: true,
+            itemStyle: {
+              color: '#F56C6C'
+            }
           }
-        }]
+        ]
       };
       totalNetWeightChart.setOption(totalNetWeightOption, true); // true表示不合并选项
     }
@@ -1011,6 +1098,28 @@ const updateCharts = () => {
       
       const totalGrossWeightData = historyData.value.map(item => item.total_gross_weight);
       
+      // 准备销量数据，按日期聚合
+      let salesWeightData = [];
+      if (salesData.value && salesData.value.length > 0) {
+        // 创建一个映射，键为日期，值为当天总重量
+        const salesWeightMap = {};
+        salesData.value.forEach(item => {
+          const date = new Date(item.date);
+          const dateStr = `${date.getMonth() + 1}/${date.getDate()}`;
+          if (!salesWeightMap[dateStr]) {
+            salesWeightMap[dateStr] = 0;
+          }
+          salesWeightMap[dateStr] += item.weight;
+        });
+        
+        // 将销量数据映射到时间轴上
+        salesWeightData = timeData.map(timeStr => {
+          // 从时间字符串中提取日期部分（去掉时间部分）
+          const dateStr = timeStr.split(' ')[0];
+          return salesWeightMap[dateStr] || 0;
+        });
+      }
+      
       const totalGrossWeightOption = {
         title: {
           text: '总毛重变化趋势',
@@ -1022,14 +1131,22 @@ const updateCharts = () => {
         tooltip: {
           trigger: 'axis',
           formatter: function(params) {
-            return params[0].name + '<br/>' + 
-                   params[0].seriesName + ': ' + params[0].value + 'kg';
+            let result = params[0].name + '<br/>';
+            params.forEach(param => {
+              result += `${param.seriesName}: ${param.value} kg<br/>`;
+            });
+            return result;
           }
         },
+        legend: {
+          data: ['生产毛重', '销量重量'],
+          top: 30
+        },
         grid: {
           left: '3%',
           right: '4%',
           bottom: '3%',
+          top: 60,
           containLabel: true
         },
         xAxis: {
@@ -1043,18 +1160,29 @@ const updateCharts = () => {
           type: 'value',
           name: '重量(kg)'
         },
-        series: [{
-          name: '总毛重',
-          data: totalGrossWeightData,
-          type: 'line',
-          smooth: true,
-          itemStyle: {
-            color: '#E6A23C'
+        series: [
+          {
+            name: '生产毛重',
+            data: totalGrossWeightData,
+            type: 'line',
+            smooth: true,
+            itemStyle: {
+              color: '#E6A23C'
+            },
+            areaStyle: {
+              opacity: 0.3
+            }
           },
-          areaStyle: {
-            opacity: 0.3
+          {
+            name: '销量重量',
+            data: salesWeightData,
+            type: 'line',
+            smooth: true,
+            itemStyle: {
+              color: '#F56C6C'
+            }
           }
-        }]
+        ]
       };
       totalGrossWeightChart.setOption(totalGrossWeightOption, true); // true表示不合并选项
     }