@page "/register"
@using System.Net
@using System.Text
@using AutoMapper
@using VisaApiClient
@using BlazorWebAssemblyVisaApiClient.Components.FormComponents.Applicants
@using BlazorWebAssemblyVisaApiClient.FluentValidation.Applicants.Models
@using BlazorWebAssemblyVisaApiClient.Infrastructure.Services
@using global::FluentValidation
@using Newtonsoft.Json
@using Newtonsoft.Json.Linq

<PageTitle>Registration</PageTitle>

<div class="horizontal-centered-content">
    <h3>Registration data</h3>
    <EditForm class="form" Model="requestModel" OnValidSubmit="TryRegisterApplicant">
        <ObjectGraphDataAnnotationsValidator/>

        <div class="form-block">
            <h5>Authentication data</h5>
            <AuthDataInput AuthData="requestModel.RegisterRequest.AuthData"/>
        </div>

        <div class="form-block">
            <h5>Your Fullname</h5>
            <NameInput Name="requestModel.ApplicantName"/>
        </div>

        <div class="form-block">
            <h5>Fullname of your mother</h5>
            <NameInput Name="requestModel.MotherName"/>
        </div>

        <div class="form-block">
            <h5>Fullname of your father</h5>
            <NameInput Name="requestModel.FatherName"/>
        </div>

        <div class="form-block">
            <h5>Your passport</h5>
            <PassportInput Passport="requestModel.Passport"/>
        </div>

        <div class="form-block">
            <h5>Birth data</h5>
            <div >
                <label>
                    Country of birth:<br/>
                    <InputText DisplayName="Country of birth" class="rounded" @bind-Value="requestModel.CountryOfBirth"/>
                </label><br/>
                <ValidationMessage For="() => requestModel.CountryOfBirth"></ValidationMessage><br/>
                <label>
                    City of birth:<br/>
                    <InputText DisplayName="City of birth" class="rounded" @bind-Value="requestModel.CityOfBirth"/>
                </label><br/>
                <ValidationMessage For="() => requestModel.CityOfBirth"></ValidationMessage><br/>
                <label>
                    Birth date:<br/>
                    <InputDate DisplayName="Birth date" class="rounded" @bind-Value="requestModel.BirthDate" max="@DateTimeProvider.Now()"/>
                </label><br/>
                <ValidationMessage For="() => requestModel.BirthDate"></ValidationMessage>
            </div>
        </div>

        <div class="form-block">
            <h5>Citizenship</h5>
            <div >
                <label>
                    Citizenship:<br/>
                    <InputText class="rounded" @bind-Value="requestModel.Citizenship"/>
                </label><br/>
                <ValidationMessage For="() => requestModel.Citizenship"></ValidationMessage><br/>
                <label>
                    Citizenship by birth:<br/>
                    <InputText DisplayName="Citizenship by birth" class="rounded" @bind-Value="requestModel.CitizenshipByBirth"/>
                </label><br/>
                <ValidationMessage For="() => requestModel.CitizenshipByBirth"></ValidationMessage>
            </div>
        </div>

        <div class="form-block">
            <h5>Address of your place of work</h5>
            <div >
                <AddressInput Address="requestModel.PlaceOfWork.Address"/>
            </div>
        </div>

        <div class="form-block">
            <h5>Place of work data</h5>
            <div >
                <PlaceOfWorkInput PlaceOfWork="requestModel.PlaceOfWork"/><br/>

                <label>
                    Job title:<br/>
                    <InputText DisplayName="Job title" class="rounded" @bind-Value="requestModel.JobTitle"/>
                </label><br/>
                <ValidationMessage For="() => requestModel.JobTitle"></ValidationMessage>
            </div>
        </div>

        <div class="form-block">
            <h5>Other</h5>

            <div >
                <label>
                    Gender: <EnumInputList Model="requestModel" EnumProperty="r => r.Gender"/>
                </label>
            </div><br/>

            <div >
                <label>
                    Marital status: <EnumInputList Model="requestModel" EnumProperty="r => r.MaritalStatus"/>
                </label>
            </div><br/>

            <div >
                <label>
                    Non-resident: <InputCheckbox @bind-Value="requestModel.IsNonResident"/>
                </label>
            </div>
        </div><br/>

        <input type="submit" class="btn-outline-primary" value="Register"/>
        <p class="@requestResultClass">@((MarkupString)requestResult)</p>
    </EditForm>
</div>

@code
{
    private RegisterApplicantRequestModel requestModel = new();
    private string requestResult = string.Empty;
    private string requestResultClass = string.Empty;

    [Inject] public Client Client { get; set; } = null!;

    [Inject] IValidator<RegisterApplicantRequestModel> RegisterApplicantRequestValidator { get; set; } = null!;

    [Inject] IMapper Mapper { get; set; } = null!;

    [Inject] IDateTimeProvider DateTimeProvider { get; set; } = null!;

    protected override void OnInitialized()
    {
        requestModel.BirthDate = DateTime.Now;
    }

    private void SetRequestResultMessage(string message)
    {
        requestResult = message;
        requestResultClass = string.Empty;
        StateHasChanged();
    }

    private void SetRequestResultSuccess(string message)
    {
        requestResult = message;
        requestResultClass = "text-success";
        StateHasChanged();
    }

    private void SetRequestResultError(string message)
    {
        requestResult = message;
        requestResultClass = "validation-message";
        StateHasChanged();
    }

    private string ErrorsToString(IEnumerable<string> errors)
    {
        var stringBuilder = new StringBuilder();
        foreach (var error in errors)
        {
            stringBuilder.Append($"{error}<br/>");
        }

        return stringBuilder.ToString();
    }

    private async void TryRegisterApplicant()
    {
        var validationResult = await RegisterApplicantRequestValidator.ValidateAsync(requestModel);
        if (!validationResult.IsValid)
        {
            var errorsString = ErrorsToString(validationResult.Errors.Select(e => e.ErrorMessage));
            SetRequestResultError(errorsString);

            return;
        }

        SetRequestResultMessage("Wait...");

        var request = Mapper.Map<RegisterApplicantRequest>(requestModel);
        try
        {
            await Client.RegisterAsync(request);
            SetRequestResultSuccess("Register successful. Now log in.");
        }
        catch (ApiException<ProblemDetails> e)
        {
            if (e.StatusCode == (int)HttpStatusCode.BadRequest
                && e.Result.AdditionalProperties.TryGetValue("errors", out var errors))
            {
                var errorsList = ((JArray)errors).ToObject<List<string>>();
                if (errorsList is null)
                {
                    throw new JsonException();
                }

                SetRequestResultError(ErrorsToString(errorsList));
            }
            else
            {
                SetRequestResultError(e.Result.Detail!);
            }
        }
    }
}