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@page "/User"
@implements IDisposable
@if (_isInitialized) {
<h3>User (@WhoAmI.UserId#@WhoAmI.DeviceId[..5])</h3>
<LinkButton OnClick="@(() => {
NavigationManager.NavigateTo("/User/Devices");
return Task.CompletedTask;
})">Manage devices
</LinkButton>
<hr/>
<span>
Raise alarm:
<LinkButton OnClick="@(() => RaiseAlarm("fall"))">Fall</LinkButton>
<LinkButton OnClick="@(() => RaiseAlarm("toilet"))">Toilet</LinkButton>
<LinkButton Color="#FF0000" OnClick="@(() => RaiseAlarm(null))">Clear</LinkButton>
</span>
<br/>
}
@if (Alarm != null) {
<ModalWindow Title="User alarm">
<div class="modal-body">
<span><strong>Alarm ID:</strong> @Alarm.Id</span><br/>
<span><strong>Reason:</strong> @Alarm.Reason</span><br/>
<span><strong>Raised at:</strong> @Alarm.CreatedAt.ToLocalTime()</span><br/>
</div>
<div class="modal-footer">
<LinkButton Color="#FF0000" OnClick="@(() => RaiseAlarm(null))">Clear Alarm</LinkButton>
</div>
</ModalWindow>
}
@code {
bool _isInitialized = false;
bool _running = true;
private WhoAmI WhoAmI { get; set; } = null!;
private AlarmDto? Alarm { get; set; } = null!;
protected override async Task OnInitializedAsync() {
WhoAmI = await App.UserClient.WhoAmI();
_isInitialized = true;
_ = PollAlarm();
NavigationManager.LocationChanged += (sender, args) => {
if (args.Location != NavigationManager.Uri) {
_running = false; // Stop polling when navigating away
}
};
}
private async Task PollAlarm() {
while (_running) {
var newAlarm = await App.UserClient.GetAlarm();
if (Alarm?.Id != newAlarm?.Id) {
Alarm = newAlarm;
StateHasChanged();
}
await Task.Delay(1000);
}
}
private async Task RaiseAlarm(string? reason) {
if (string.IsNullOrWhiteSpace(reason))
await App.UserClient.DeleteAlarm();
else
await App.UserClient.SetAlarm(new() { Reason = reason });
}
private void ReleaseUnmanagedResources() {
_running = false;
}
public void Dispose() {
ReleaseUnmanagedResources();
GC.SuppressFinalize(this);
}
~User() => ReleaseUnmanagedResources();
}
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