using WorkTime.Shared.Services;

namespace WorkTime.Api.Services;

internal class AuthService(IHttpContextAccessor accessor) : IAuthService {
    
    public Task<bool> IsAuthenticated() {
        var header = accessor.HttpContext?.Request.Headers[IAuthService.HeaderName];
        if (header is not { Count: 1 })
            return Task.FromResult(false);

        var value = header.Value[0]!.Replace("Bearer ", "");
        if (Guid.TryParse(value, out var guid))
            return Task.FromResult(false);

        return Task.FromResult(guid != Guid.Empty);
    }
    
    public async Task<Guid> GetCurrentUserId() {
        if (!await IsAuthenticated())
            return Guid.Empty;

        var header = accessor.HttpContext?.Request.Headers[IAuthService.HeaderName]!;
        var value = header.Value[0]!.Replace("Bearer ", "");
        
        return Guid.Parse(value);
    }
    
}