88 lines
3.5 KiB
C#
88 lines
3.5 KiB
C#
using System;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Threading.Tasks;
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using ClosedXML.Excel;
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using Microsoft.EntityFrameworkCore;
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using Parking_space_WebAPI.Models;
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namespace Parking_space_WebAPI.Services
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{
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public class ExcelGenerationService
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{
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private readonly SqlContext _context;
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private readonly string _excelDirectory;
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public ExcelGenerationService(SqlContext context)
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{
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_context = context;
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_excelDirectory = @"C:\Users\ste92\Desktop\parking-e\excel"; // 設定 Excel 檔案存儲路徑
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}
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public async Task GenerateDailyExcel()
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{
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DateTime today = DateTime.Today;
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// 查詢當天的停車紀錄，按小時分組
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var parkingLogs = await _context.ParkingLogs
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.Where(p => p.Timestamp.Date == today)
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.GroupBy(p => new { p.Timestamp.Year, p.Timestamp.Month, p.Timestamp.Day, p.Timestamp.Hour })
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.Select(g => new
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{
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Timestamp = new DateTime(g.Key.Year, g.Key.Month, g.Key.Day, g.Key.Hour, 0, 0),
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TotalParkingSpaces = g.First().TotalParkingSpaces, // 取每小時第一筆的總車位
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RemainingSpaces = g.First().RemainingSpaces, // 取每小時第一筆的剩餘車位
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MonthlyRentSpaces = g.First().MonthlyRentSpaces, // 取每小時第一筆的月租車位
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TemporaryRentSpaces = g.First().TemporaryRentSpaces // 取每小時第一筆的臨停車位
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})
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.ToListAsync();
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if (parkingLogs.Count == 0)
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{
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// 如果當天沒有紀錄，可以選擇不生成檔案或進行其他處理
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return;
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}
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using (var workbook = new XLWorkbook())
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{
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var worksheet = workbook.Worksheets.Add("當天停車紀錄");
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worksheet.Cell(1, 1).Value = "時間";
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worksheet.Cell(1, 2).Value = "總車位";
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worksheet.Cell(1, 3).Value = "剩餘車位";
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worksheet.Cell(1, 4).Value = "月租車位";
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worksheet.Cell(1, 5).Value = "臨停車位";
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worksheet.Cell(1, 6).Value = "生成日期";
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worksheet.Cell(2, 6).Value = DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss dddd"); // 填入當前生成時間
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for (int i = 0; i < parkingLogs.Count; i++)
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{
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var log = parkingLogs[i];
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worksheet.Cell(i + 2, 1).Value = log.Timestamp.ToString("yyyy/MM/dd HH:mm:ss");
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worksheet.Cell(i + 2, 2).Value = log.TotalParkingSpaces;
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worksheet.Cell(i + 2, 3).Value = log.RemainingSpaces;
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worksheet.Cell(i + 2, 4).Value = log.MonthlyRentSpaces;
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worksheet.Cell(i + 2, 5).Value = log.TemporaryRentSpaces;
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}
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// 設定欄位寬度
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worksheet.Column(1).Width = 25;
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worksheet.Column(2).Width = 15;
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worksheet.Column(3).Width = 15;
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worksheet.Column(4).Width = 15;
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worksheet.Column(5).Width = 15;
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worksheet.Column(6).Width = 25;
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// 生成檔案名稱
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string fileName = $"整天車位數-{today:yyyy-MM-dd-dddd}.xlsx";
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// 儲存檔案
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var filePath = Path.Combine(_excelDirectory, fileName);
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workbook.SaveAs(filePath);
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}
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}
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}
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}
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