@page "/campaigns"
@using Hcs.WebApp.BackgroundServices
@using Hcs.WebApp.Services
@using Microsoft.AspNetCore.Authorization
@implements IDisposable
@attribute [Authorize]
@inject AuthenticationStateProvider AuthenticationStateProvider
@inject HeadquartersService HeadquartersService
@inject CampaignManagementState CampaignManagementState
Кампании
@code {
enum CampaignsPageState
{
Init,
Loading,
Idle
}
CampaignsPageState state;
IEnumerable campaigns;
protected override async Task OnAfterRenderAsync(bool firstRender)
{
await base.OnAfterRenderAsync(firstRender);
if (firstRender)
{
ChangeState(CampaignsPageState.Loading);
var state = await AuthenticationStateProvider.GetAuthenticationStateAsync();
if (state.User.IsInRole(AppRole.ADMINISTRATOR_TYPE) || state.User.IsInRole(AppRole.OPERATOR_TYPE))
{
CampaignManagementState.OnCampaignCreated += OnCampaignCreated;
CampaignManagementState.OnCampaignProgressStep += OnCampaignProgressStep;
CampaignManagementState.OnCampaignEnded += OnCampaignEnded;
campaigns = await HeadquartersService.GetCampaignsAsync();
}
ChangeState(CampaignsPageState.Idle);
}
}
async Task RowExpandAsync(Campaign campaign)
{
// TODO
}
void ChangeState(CampaignsPageState state)
{
if (this.state == state) return;
this.state = state;
StateHasChanged();
}
void OnCampaignCreated(Campaign campaign)
{
Task.Run(RefreshCampaigns);
}
void OnCampaignProgressStep(Campaign campaign)
{
InvokeAsync(() =>
{
var targetCampaign = campaigns.FirstOrDefault(x => x.Id == campaign.Id);
if (targetCampaign != null)
{
targetCampaign.Step = campaign.Step;
targetCampaign.Progress = campaign.Progress;
}
});
}
void OnCampaignEnded(Campaign campaign)
{
Task.Run(RefreshCampaigns);
}
async Task RefreshCampaigns()
{
await InvokeAsync(() => ChangeState(CampaignsPageState.Loading));
var refreshedCampaigns = await HeadquartersService.GetCampaignsAsync();
await InvokeAsync(() =>
{
campaigns = refreshedCampaigns;
ChangeState(CampaignsPageState.Idle);
});
}
public void Dispose()
{
CampaignManagementState.OnCampaignCreated -= OnCampaignCreated;
CampaignManagementState.OnCampaignProgressStep -= OnCampaignProgressStep;
CampaignManagementState.OnCampaignEnded -= OnCampaignEnded;
}
}