changes

src/controllers/tanksController.js

@@ -7852,3 +7852,74 @@ exports.compareMeasuredHeight = async (req, reply) => {
     reply.status(500).send({ message: err.message });
   }
 };
+
+
+
+
+//const ExcelJS = require('exceljs');
+//const IotData = require('../models/IotData'); // adjust the path
+
+// async function generateAndSaveTankExcel() {
+//   const startDate = "2025-06-03T00:00:00.000Z";
+//   const endDate = new Date().toISOString();
+
+//   const getFilteredData = async (hardwareId) => {
+//     const query = {
+//       hardwareId,
+//       date: {
+//         $gte: startDate,
+//         $lte: endDate,
+//       },
+//     };
+
+//     console.log(`Fetching data for hardwareId: ${hardwareId}`);
+//     const results = await IotData.find(query).sort({ date: 1 });
+
+//     console.log(`Found ${results.length} records for hardwareId ${hardwareId}`);
+
+//     const data = [];
+
+//     for (const entry of results) {
+//       if (!entry.tanks || !Array.isArray(entry.tanks)) continue;
+
+//       for (const tank of entry.tanks) {
+//         if (tank.tankhardwareId === 'tank-1' || tank.tankhardwareId === 'tank-2') {
+//           data.push({
+//             hardwareId: entry.hardwareId,
+//             tankhardwareId: tank.tankhardwareId,
+//             tankHeight: tank.tankHeight,
+//             date: tank.date.split('T')[0], // safe because it's a string
+//             time: tank.time,
+//           });
+//         }
+//       }
+//     }
+
+//     console.log(`Filtered ${data.length} tank records for hardwareId ${hardwareId}`);
+//     return data;
+//   };
+
+//   const data140924 = await getFilteredData("140924");
+//   const data150924 = await getFilteredData("150924");
+
+//   const workbook = new ExcelJS.Workbook();
+//   const worksheet = workbook.addWorksheet("Tank Data");
+
+//   worksheet.columns = [
+//     { header: "Hardware ID", key: "hardwareId", width: 15 },
+//     { header: "Tank ID", key: "tankhardwareId", width: 15 },
+//     { header: "Tank Height", key: "tankHeight", width: 15 },
+//     { header: "Date", key: "date", width: 15 },
+//     { header: "Time", key: "time", width: 15 },
+//   ];
+
+//   const allData = [...data140924, ...data150924];
+
+//   allData.forEach(row => worksheet.addRow(row));
+
+//   await workbook.xlsx.writeFile("tank_data.xlsx");
+//   console.log("✅ Excel file saved as tank_data.xlsx with rows:", allData.length);
+// }
+
+
+// generateAndSaveTankExcel();