Files
timetracker/Data/HolidayService.cs
T
2026-06-07 23:36:45 +02:00

83 lines
2.8 KiB
C#

using Microsoft.EntityFrameworkCore;
using System.Net.Http.Json;
using System.Text.Json.Serialization;
namespace timetracker.Data;
public class HolidayService(IDbContextFactory<TimetrackerDbContext> factory, HttpClient http)
{
private const string ApiUrl = "https://date.nager.at/api/v3/PublicHolidays/{0}/DE";
public async Task<List<PublicHoliday>> GetHolidaysAsync(int year, string? stateCode = null)
{
await using var db = await factory.CreateDbContextAsync();
var holidays = await db.PublicHolidays
.Where(h => h.Date.Year == year)
.OrderBy(h => h.Date)
.ToListAsync();
if (string.IsNullOrEmpty(stateCode))
{
// Default: return only global holidays (where Counties is null or empty)
return holidays.Where(h => string.IsNullOrEmpty(h.Counties)).ToList();
}
// Return global holidays OR holidays that match the user's state code
return holidays.Where(h => string.IsNullOrEmpty(h.Counties) || h.Counties.Split(',').Contains(stateCode)).ToList();
}
public async Task<(bool Success, string Message)> FetchAndStoreAsync(int year)
{
try
{
var url = string.Format(ApiUrl, year);
var items = await http.GetFromJsonAsync<List<NagerHoliday>>(url);
if (items == null) return (false, "Keine Daten erhalten.");
await using var db = await factory.CreateDbContextAsync();
var existing = await db.PublicHolidays.Where(h => h.Date.Year == year).ToListAsync();
db.PublicHolidays.RemoveRange(existing);
db.PublicHolidays.AddRange(items
.Where(h => DateOnly.TryParse(h.Date, out _))
.Select(h => new PublicHoliday
{
Date = DateOnly.Parse(h.Date),
Name = h.LocalName,
Counties = h.Counties != null && h.Counties.Count > 0 ? string.Join(",", h.Counties) : null
}));
await db.SaveChangesAsync();
return (true, $"{items.Count} Feiertage für {year} erfolgreich gespeichert.");
}
catch (Exception ex)
{
return (false, $"Fehler beim Abrufen: {ex.Message}");
}
}
public async Task DeleteAsync(int id)
{
await using var db = await factory.CreateDbContextAsync();
var h = await db.PublicHolidays.FindAsync(id);
if (h != null)
{
db.PublicHolidays.Remove(h);
await db.SaveChangesAsync();
}
}
private sealed class NagerHoliday
{
[JsonPropertyName("date")]
public string Date { get; set; } = "";
[JsonPropertyName("localName")]
public string LocalName { get; set; } = "";
[JsonPropertyName("counties")]
public List<string>? Counties { get; set; }
}
}