using Microsoft.AspNetCore.Mvc;
using NLog;
using WebDoorCreator.API.Data;

namespace WebDoorCreator.API.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class QueueController : ControllerBase
    {
        #region Public Constructors

        public QueueController(IConfiguration configuration, QueueDataService DataService)
        {
            Log.Info("Starting QueueController");
            _configuration = configuration;
            QDService = DataService;
            Log.Info("Avviato QueueController");
        }

        #endregion Public Constructors

        #region Public Methods

        /// <summary>
        /// Lunghezza coda in attesa
        /// </summary>
        /// <returns></returns>
        [HttpGet("ActPendingLenght")]
        public async Task<long> ActPendingLenght()
        {
            long numQueue = await QDService.NumRequestPending();
            return numQueue;
        }
        /// <summary>
        /// Lunghezza coda in fase di processing
        /// </summary>
        /// <returns></returns>
        [HttpGet("ActProcessingLenght")]
        public async Task<long> ActProcessingLenght()
        {
            long numQueue = await QDService.NumRequestProcessing();
            return numQueue;
        }

        /// <summary>
        /// Elenco richieste in stato pending
        /// </summary>
        /// <returns></returns>
        [HttpGet("ShowPending")]
        public async Task<Dictionary<string, string>?> ShowPending()
        {
            var actQueue = await QDService.RequestPending();
            return actQueue;// != null && actQueue.Count > 0 ? actQueue : null;
        }

        /// <summary>
        /// Elenco richeiste in stato processing
        /// </summary>
        /// <returns></returns>
        [HttpGet("ShowProcessing")]
        public async Task<Dictionary<string, string>> ShowProcessing()
        {
            var actQueue = await QDService.RequestProcessing();
            return actQueue;
        }

        /// <summary>
        /// Chiede un numero massimo di items dalla coda NB:
        /// - verranno tolti dalla coda FIFO richieste
        /// - verranno messi nella coda FIFO processing
        /// </summary>
        /// <returns></returns>
        [HttpGet("TakeProcessingItems")]
        public async Task<Dictionary<string, string>> TakeProcessingItems(int numItems)
        {
            var actQueue = await QDService.RequestPending();
            return actQueue;
        }

        #endregion Public Methods

        #region Private Fields

        private static IConfiguration _configuration = null!;

        private static Logger Log = LogManager.GetCurrentClassLogger();

        #endregion Private Fields

        #region Private Properties

        private QueueDataService QDService { get; set; } = null!;

        #endregion Private Properties
    }
}