gave range of aqi chart a tooltip that shows the necessary data.

lib/pages/analytics/modules/air_quality/helpers/range_of_aqi_charts_helper.dart

@@ -1,5 +1,6 @@
 import 'package:fl_chart/fl_chart.dart';
 import 'package:flutter/material.dart';
+import 'package:intl/intl.dart';
 import 'package:syncrow_web/pages/analytics/models/range_of_aqi.dart';
 import 'package:syncrow_web/pages/analytics/modules/energy_management/helpers/energy_management_charts_helper.dart';
 import 'package:syncrow_web/utils/color_manager.dart';
@@ -60,4 +61,55 @@ abstract final class RangeOfAqiChartsHelper {
       ),
     );
   }
+
+  static List<LineTooltipItem?> getTooltipItems(
+    List<LineBarSpot> touchedSpots,
+    List<RangeOfAqi> chartData,
+  ) {
+    return touchedSpots.asMap().entries.map((entry) {
+      final index = entry.key;
+      final spot = entry.value;
+
+      final label = switch (spot.barIndex) {
+        0 => 'Max',
+        1 => 'Avg',
+        2 => 'Min',
+        _ => '',
+      };
+
+      final date = DateFormat('dd/MM').format(chartData[spot.x.toInt()].date);
+
+      return LineTooltipItem(
+        index == 0 ? '$date\n' : '',
+        const TextStyle(
+          color: ColorsManager.textPrimaryColor,
+          fontWeight: FontWeight.w600,
+          fontSize: 12,
+        ),
+        children: [
+          TextSpan(text: '$label: ${spot.y.toStringAsFixed(0)}'),
+        ],
+      );
+    }).toList();
+  }
+
+  static LineTouchData lineTouchData(
+    List<RangeOfAqi> chartData,
+  ) {
+    return LineTouchData(
+      touchTooltipData: LineTouchTooltipData(
+        getTooltipColor: (touchTooltipItem) => ColorsManager.whiteColors,
+        tooltipBorder: const BorderSide(
+          color: ColorsManager.semiTransparentBlack,
+        ),
+        tooltipRoundedRadius: 16,
+        showOnTopOfTheChartBoxArea: false,
+        tooltipPadding: const EdgeInsets.all(8),
+        getTooltipItems: (touchedSpots) => RangeOfAqiChartsHelper.getTooltipItems(
+          touchedSpots,
+          chartData,
+        ),
+      ),
+    );
+  }
 }