Files
NumericalAnalysisTool/Components/Pages/WorkspaceDetail.razor
T
2026-05-29 16:10:20 +02:00

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@page "/workspace/{*WorkspaceId}"
@using ZahlenAnalyse.Web.Models
@using ZahlenAnalyse.Web.Services
@inject WorkspaceService DbService
@inject ISnackbar Snackbar
@inject NavigationManager NavManager
<MudContainer MaxWidth="MaxWidth.Large" Class="mt-8 mb-8">
@if (_workspace == null)
{
<MudProgressCircular Indeterminate="true" />
}
else
{
<MudText Typo="Typo.h3" Class="mb-6">@_workspace.Name</MudText>
<MudGrid>
<MudItem xs="12" md="6">
<MudPaper Class="pa-6" Elevation="1">
<MudText Typo="Typo.h6" Class="mb-4">Daten importieren</MudText>
<MudText Typo="Typo.body2" Class="mb-4">Lade eine Excel-Datei hoch, um Fakten in diesen Workspace zu importieren.</MudText>
<MudFileUpload T="IBrowserFile" FilesChanged="@(e => UploadFile(e))" Accept=".xlsx">
<CustomContent>
<MudButton Variant="Variant.Filled"
Color="Color.Primary"
StartIcon="@Icons.Material.Filled.CloudUpload"
OnClick="@context.OpenFilePickerAsync">
Excel hochladen
</MudButton>
</CustomContent>
</MudFileUpload>
</MudPaper>
</MudItem>
<MudItem xs="12" md="6">
<MudPaper Class="pa-6" Elevation="1">
<MudText Typo="Typo.h6" Class="mb-4">Dimensionen</MudText>
<MudStack Row="true" Wrap="Wrap.Wrap">
@foreach (var dim in _workspace.Dimensions)
{
<MudChip T="string" Variant="Variant.Outlined" Color="Color.Info">@dim.Name</MudChip>
}
</MudStack>
</MudPaper>
</MudItem>
<MudItem xs="12">
<MudPaper Class="pa-6" Elevation="1">
<MudText Typo="Typo.h6" Class="mb-4">Letzte Importe / Einträge</MudText>
<MudTable Items="_recentFakten" Hover="true" Breakpoint="Breakpoint.Sm">
<HeaderContent>
<MudTh>Datum</MudTh>
<MudTh>Betrag</MudTh>
<MudTh>Details</MudTh>
</HeaderContent>
<RowTemplate>
<MudTd>@context.Date.ToShortDateString()</MudTd>
<MudTd>@context.Amount.ToString("N2") €</MudTd>
<MudTd>@string.Join(" | ", context.Dimensions.Values)</MudTd>
</RowTemplate>
</MudTable>
</MudPaper>
</MudItem>
</MudGrid>
}
</MudContainer>
@code {
[Parameter] public string WorkspaceId { get; set; } = string.Empty;
private Workspace? _workspace;
private List<AnalysisFakt> _recentFakten = new();
protected override async Task OnInitializedAsync()
{
_workspace = await DbService.GetWorkspaceAsync(WorkspaceId);
if (_workspace != null)
{
_recentFakten = await DbService.GetFaktenForWorkspaceAsync(WorkspaceId);
_recentFakten = _recentFakten.Take(5).ToList();
}
}
private async Task UploadFile(Microsoft.AspNetCore.Components.Forms.IBrowserFile e)
{
var file = e;
if (file == null) return;
try
{
// 1. Datenstrom vom Browser öffnen
using var browserStream = file.OpenReadStream(maxAllowedSize: 1024 * 1024 * 10); // 10MB
// 2. Den Stream komplett in den "Eimer" (Arbeitsspeicher) laden
using var memoryStream = new MemoryStream();
await browserStream.CopyToAsync(memoryStream);
// 3. WICHTIG: Den Lese-Zeiger im Eimer wieder nach ganz oben setzen!
memoryStream.Position = 0;
// 4. Den fertigen MemoryStream an den Service übergeben
await DbService.ImportFromExcelAsync(WorkspaceId, memoryStream);
Snackbar.Add("Import erfolgreich!", Severity.Success);
// Die Tabelle mit den neuen Daten aktualisieren
_recentFakten = (await DbService.GetFaktenForWorkspaceAsync(WorkspaceId)).Take(5).ToList();
}
catch (Exception ex)
{
Snackbar.Add($"Fehler beim Import: {ex.Message}", Severity.Error);
}
}
}