@inject IUserService userService
@inject ISnackbar snackbar
@inject MesaFabApprovalAuthStateProvider authStateProvider

<MudDialog>
    <DialogContent>
        @if (allUsers is not null) {
            <MudPaper Class="p-2">
                <MudSelect T="User"
                           Label="Select a User"
                           Required
                           Variant="Variant.Outlined"
                           AnchorOrigin="Origin.BottomCenter"
                           @bind-Value=selectedUser
                           Text="@(selectedUser is null ? "" : selectedUser.GetFullName())">
                    @foreach (User user in allUsers) {
                        <MudSelectItem Value="@user">
                            @user.GetFullName()
                        </MudSelectItem>
                    }
                </MudSelect>
            </MudPaper>
        }
    </DialogContent>
    <DialogActions>
        <MudButton Variant="Variant.Filled"
                   Color="Color.Tertiary"
                   Class="m1-auto"
                   OnClick=Submit>
            <MudText>Submit</MudText>
        </MudButton>
        <MudButton Variant="Variant.Filled"
                   Color="Color.Secondary"
                   Class="m1-auto"
                   OnClick=Cancel>
            <MudText>Cancel</MudText>
        </MudButton>
    </DialogActions>
</MudDialog>

<MudOverlay Visible=processing DarkBackground="true" AutoClose="false">
    <MudProgressCircular Color="Color.Info" Size="Size.Medium" Indeterminate="true" />
</MudOverlay>

@code {
    [CascadingParameter] MudDialogInstance MudDialog { get; set; }

    [Parameter]
    public User selectedUser { get; set; }

    private bool processing = false;

    private IEnumerable<User> allUsers = new List<User>();

    protected override async Task OnInitializedAsync() {
        try {
            processing = true;
            selectedUser = authStateProvider.CurrentUser;
            allUsers = await userService.GetAllActiveUsers();
            processing = false;
        } catch (Exception ex) {
            processing = false;
            snackbar.Add($"Unable to get all users, because {ex.Message}", Severity.Error);
        }
    }

    private void Submit() {
        MudDialog.Close(DialogResult.Ok(selectedUser));
    }

    private void Cancel() {
        MudDialog.Close(DialogResult.Cancel());
    }
}