using MagMan.Core.DTO;
using MagMan.Core;
using MagMan.Data.Admin.DbModels;
using MagMan.Data.Admin.Services;
using MagMan.Data.Tenant.Services;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;
using NLog;
using MagMan.Data.Tenant.DbModels;
using k8s.Models;
using MimeKit;

namespace MagMan.UI.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class LogMachineController : ControllerBase
    {
        #region Public Constructors

        public LogMachineController(MTAdminService MTDataService, TenantService TDataService)
        {
            MTAdmService = MTDataService;
            TService = TDataService;
            // json serializer... FIX errore loop circolare https://www.ryadel.com/en/jsonserializationexception-self-referencing-loop-detected-error-fix-entity-framework-asp-net-core/
            JSSettings = new JsonSerializerSettings()
            {
                ReferenceLoopHandling = ReferenceLoopHandling.Ignore
            };
            Log.Info("Avviata classe LogMachineController");
        }

        #endregion Public Constructors

        #region Public Methods

        /// <summary>
        /// Controllo status Alive
        /// GET: api/LogMachine/alive
        /// </summary>
        /// <returns></returns>
        [HttpGet("alive")]
        public string alive()
        {
            return $"OK";
        }

        // GET api/LogMachine
        [HttpGet]
        public async Task<List<LogMachineModel>> Get()
        {
            // se non ho chiave --> vuoto!
            List<LogMachineModel> ListRecords = new List<LogMachineModel>();
            await Task.Delay(100);
            return ListRecords;
        }

        /// <summary>
        /// Elenco ultimi valori LogMachineModel dato RestToken
        /// </summary>
        /// <param name="id">Rest Token cliente</param>
        /// <param name="KeyNum">Chiave associata ai progetti</param>
        /// <param name="machineId">idMacchina di cui si vuole log</param>
        /// <param name="numRec">num rec max da recuperare</param>
        /// <returns></returns>
        // GET api/LogMachine/2cba60c7-7be4-40b1-aa0d-52e7c71fc1a7
        [HttpGet("{id}")]
        public async Task<List<LogMachineModel>> Get(string id, int KeyNum, int machineId, int numRec)
        {
            List<LogMachineModel> ListRecords = new List<LogMachineModel>();
            if (!string.IsNullOrEmpty(id))
            {
                // in primis recupero codice chiave da token...
                int nKey = await MTAdmService.MainKeyByToken(id);
                var rawList = await TService.LogMacGetLast(nKey, machineId, numRec);
                if (rawList != null)
                {
                    ListRecords.AddRange(rawList);
                }
            }
            return ListRecords;
        }

        /// <summary>
        /// Processa una chiamata POST per esecuzione chiamata remove range
        /// PUT: api/Inventory/upsert/00000000-0000-0000-0000-000000000000
        /// </summary>
        /// <param name="id">token comunicazione</param>
        /// <returns>ID del progetto creato da usare come CloudId</returns>
        [HttpPost("remove/{id}")]
        public async Task<int> remove(string id, [FromBody] RestPayload.PeriodData rawData)
        {
            int answ = 0;
            // verifico ci sia valore
            if (!string.IsNullOrEmpty(id) && rawData != null)
            {
                // in primis recupero codice chiave da token...
                int nKey = await MTAdmService.MainKeyByToken(id);
                int machId = 0;
                var machList = await MTAdmService.MachineGetByToken(id);
                if (machList != null && machList.Count > 0)
                {
                    var dbResult = machList
                                .Where(x => x.MainKey == nKey)
                                .FirstOrDefault();
                    if (dbResult != null)
                    {
                        machId = dbResult.MachineID;
                    }
                }
                if (nKey > 0)
                {
                    try
                    {
                        // rimuovo!
                        answ = await TService.LogMacRemoveRange(nKey, machId, rawData.DtStart, rawData.DtEnd);
                    }
                    catch (Exception exc)
                    {
                        Log.Error($"LogMachineController.remove | Errore in fase esecuzione richiesta{Environment.NewLine}{exc}");
                    }
                    // resetto cache redis
                    await MTAdmService.FlushRedisCache();
                }
            }
            return answ;
        }

        /// <summary>
        /// Processa una chiamata POST per l'invio di un oggetto di upsert progetto
        /// PUT: api/Inventory/upsert/00000000-0000-0000-0000-000000000000
        /// </summary>
        /// <param name="id">token comunicazione</param>
        /// <returns>ID del progetto creato da usare come CloudId</returns>
        [HttpPost("upsert/{id}")]
        public async Task<int> upsert(string id, [FromBody] RestPayload.LogData rawData)
        {
            int answ = 0;
            // verifico ci sia valore
            if (!string.IsNullOrEmpty(id) && rawData != null && rawData.LogList != null)
            {
                // in primis recupero codice chiave da token...
                int nKey = await MTAdmService.MainKeyByToken(id);
                int machId = 0;
                var machList = await MTAdmService.MachineGetByToken(id);
                if (machList != null && machList.Count > 0)
                {
                    var dbResult = machList
                                .Where(x => x.MainKey == nKey)
                                .FirstOrDefault();
                    if (dbResult != null)
                    {
                        machId = dbResult.MachineID;
                    }
                }
                if (nKey > 0)
                {
                    // converto elenco da Dto --> DB
                    var listRec = rawData.LogList.Select(x => TService.LogMacFromDto(x, machId, nKey)).ToList();
                    try
                    {
                        // FixMe ToDo: schematizzare/configurare/implementare/installare online
                        List<List<LogMachineModel>> listBlock = new List<List<LogMachineModel>>();
                        // divido in blocchi... gestire da config! (4/8)
                        int numParall = 4;
                        int numTot = rawData.LogList.Count;
                        int bSize = (int)Math.Ceiling((decimal)numTot / numParall);
                        for (int i = 0; i < numParall; i++)
                        {
                            listBlock.Add(listRec.Skip(i * bSize).Take(bSize).ToList());
                        }

                        var options = new ParallelOptions { MaxDegreeOfParallelism = numParall };
                        await Parallel.ForEachAsync(listBlock, async (subList, token) =>
                        {
                            // upsert!
                            int numDone = await TService.LogMacUpdate(nKey, subList);
                            answ += numDone;
                        });

#if false
                        // upsert!
                        answ = await TService.LogMacUpdate(nKey, listRec); 
#endif
                    }
                    catch (Exception exc)
                    {
                        Log.Error($"LogMachineController.upsert | Errore in fase salvataggio di {rawData.LogList.Count} LogMacDTO{Environment.NewLine}{exc}");
                    }
                    // resetto cache redis
                    await MTAdmService.FlushRedisCache();
                }
            }
            return answ;
        }

        #endregion Public Methods

        #region Private Fields

        private static JsonSerializerSettings? JSSettings;

        /// <summary>
        /// Classe per logging
        /// </summary>
        private static NLog.Logger Log = LogManager.GetCurrentClassLogger();

        #endregion Private Fields

        #region Private Properties

        private MTAdminService MTAdmService { get; set; } = null!;
        private TenantService TService { get; set; } = null!;

        #endregion Private Properties
    }
}