@page "/applications"
@using System.Net
@using System.Text
@using BlazorWebAssemblyVisaApiClient.Infrastructure.Helpers
@using BlazorWebAssemblyVisaApiClient.Infrastructure.Services.UserDataProvider
@using VisaApiClient
@inherits BlazorWebAssemblyVisaApiClient.Components.Base.VisaClientComponentBase

<PageTitle>Applications</PageTitle>

<table class="table table-bordered">
    <thead>
    @((MarkupString)htmlHead)
    </thead>
    <tbody>
    @((MarkupString)htmlBody)
    </tbody>
</table >

@code {
    private string htmlBody = null!;

    private string htmlHead = null!;

    [Inject] private IUserDataProvider UserDataProvider { get; set; } = null!;

    [Inject] private NavigationManager Nav { get; set; } = null!;

    protected override async Task OnInitializedAsync()
    {
        var stringBuilder = new StringBuilder();

        try
        {
            switch (UserDataProvider.GetCurrentRole())
            {
                case "Applicant":
                    htmlHead = "<tr><th>Destination Country</th><th>Visa Category</th><th>Request date</th><th>Days requested</th><th>Status</th></tr>";
                    var applications = await Client.GetForApplicantAsync();

                    foreach (var application in applications)
                    {
                        var rowClass = application.Status switch
                        {
                            ApplicationStatus.Pending => "",
                            ApplicationStatus.Approved => "table-success",
                            ApplicationStatus.Rejected => "table-danger",
                            ApplicationStatus.Closed => "table-danger",
                            _ => throw new ArgumentOutOfRangeException()
                        };

                        stringBuilder.AppendLine($"<tr class=\"{rowClass}\"><th>{application.DestinationCountry}</th><th>{application.VisaCategory.GetDisplayName()}</th><th>{application.RequestDate.ToString("d")}</th><th>{application.ValidDaysRequested}</th><th>{application.Status.GetDisplayName()}</th></tr>");
                    }

                    htmlBody = stringBuilder.ToString();
                    break;
                default:
                    Nav.NavigateTo("/"); //todo feedback
                    break;
            }
        }
        catch (Exception e)
        {
            if (e is ApiException<ProblemDetails> { Result.Status: (int)HttpStatusCode.Unauthorized } problemDetailsException)
            {
                htmlBody =  $"<p>{problemDetailsException.Result.Detail!}</p>";
            }
            else
            {
                ErrorHandler.Handle(e);
            }
        }
    }

}