using System.Net.Http.Headers;
using NexusReader.Application.Abstractions.Services;

namespace NexusReader.Web.Client.Handlers;

public class AuthenticationHeaderHandler : DelegatingHandler
{
    private readonly INativeStorageService _storageService;
    private const string TokenKey = "nexus_auth_token";

    public AuthenticationHeaderHandler(INativeStorageService storageService)
    {
        _storageService = storageService;
    }

    protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
    {
        var tokenResult = await _storageService.GetSecureString(TokenKey);
        
        if (tokenResult.IsSuccess && !string.IsNullOrEmpty(tokenResult.Value))
        {
            request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", tokenResult.Value);
        }

        return await base.SendAsync(request, cancellationToken);
    }
}