using Flurl.Http;
using Microsoft.Extensions.Logging;

namespace Piwigo.Client;

public class PiwigoContext : IPiwigoContext
{
    private readonly CookieJar _cookies = new();
    private readonly ILogger<PiwigoContext> _logger;

    public PiwigoContext(IPiwigoConfiguration configuration, ILogger<PiwigoContext> logger)
    {
        Config = configuration ?? throw new ArgumentNullException(nameof(configuration));
        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
    }

    public IPiwigoConfiguration Config { get; }

    public bool IsLoggedIn { get; private set; }

    public IFlurlRequest ConfigureRequest(ILogger logger, bool requireLogin = true)
    {
        if (logger == null)
        {
            throw new ArgumentNullException(nameof(logger));
        }

        if (requireLogin && !IsLoggedIn)
        {
            throw new InvalidOperationException("User is not logged in. Ensure login is called before accessing any piwigo methods");
        }

        return Config.BaseUri.WithCookies(_cookies).ConfigureRequest(r => r.AfterCallAsync = call => LogResponse(call, logger));
    }

    public void LoggedOut()
    {
        _logger.LogInformation("logged out, clearing cookies");
        IsLoggedIn = false;
        _cookies.Clear();
    }

    public void LoggedIn()
    {
        _logger.LogInformation("logged in");
        IsLoggedIn = true;
    }

    private static async Task LogResponse(FlurlCall call, ILogger logger)
    {
        var responseString = await call.Response.GetStringAsync();
        logger.LogDebug("PiwigoResponse: {Response}", responseString);
    }
}