Mapo-IOB/SMGen.Data/Services/SMGDataService.cs

using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Newtonsoft.Json;
using NLog;
using Org.BouncyCastle.Asn1.Pkcs;
using SMGen.Core;
using SMGen;
using SMGen.Data.Controllers;
using SMGen.Data.DbModels;
using StackExchange.Redis;
using System.Diagnostics;
using SMGen.Data;
using SMGen.Data.Data;

namespace SMGen.Data.Services
{
    public class SMGDataService
    {
        public static SMGenController dbController = null!;

        private static IConfiguration _configuration = null!;

        private static JsonSerializerSettings? JSSettings;

        private static Logger Log = LogManager.GetCurrentClassLogger();

        /// <summary>
        /// Durata cache lunga IN SECONDI
        /// </summary>
        private int cacheTtlLong = 60 * 5;

        /// <summary>
        /// Durata cache breve IN SECONDI
        /// </summary>
        private int cacheTtlShort = 60 * 1;

        /// <summary>
        /// Oggetto per connessione a REDIS
        /// </summary>
        private IConnectionMultiplexer redisConn;

        /// <summary>
        /// Oggetto DB redis da impiegare x chiamate R/W
        /// </summary>
        private IDatabase redisDb = null!;

        private Random rnd = new Random();

        public SMGDataService(IConfiguration configuration, IConnectionMultiplexer redisConnMult)
        {
            _configuration = configuration;
            // Conf cache
            redisConn = redisConnMult;
            redisDb = this.redisConn.GetDatabase();

            // 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
            };

            // cod app
            CodApp = _configuration["CodApp"];
            // Conf DB
            string connStr = _configuration.GetConnectionString("SMGen.DB");
            if (string.IsNullOrEmpty(connStr))
            {
                Log.Info("ConnString empty!");
            }
            else
            {
                dbController = new SMGenController(configuration);
            }

            // chiudo log
            Log.Info("Avviata classe WebDoorCreatorService");
        }
        public string CodApp { get; set; } = "";


        public async Task<bool> TranInInsert(List<TransizioneIngressiModelTemp> newTIList, int currIdxFamiglia)
        {
            var dbResult = await dbController.TranInInsert(newTIList, currIdxFamiglia);
            return dbResult;
        }
        public async Task<bool> AnagEventinInsert(List<AnagEventiModelTemp> newEvList)
        {
            var dbResult = await dbController.AnagEventinInsert(newEvList);
            return dbResult;
        }

        public async Task<bool> FilesLoadRedis(Dictionary<string, FilesClass> filesDict)
        {
            bool fatto = false;
            string currKey = $"{Constants.FILES_TO_PROC}";
            await ExecFlushRedisPattern(currKey);

            foreach (var item in filesDict)
            {
                string valSer = JsonConvert.SerializeObject(item.Value, JSSettings);

                await RedHashUpsert(currKey, item.Key, valSer);
            }

            fatto = true;

            return fatto;
        }

        public async Task<bool> FileUpdate(string origFileName, FilesClass fileNewInfo)
        {
            bool fatto = false;
            string currKey = $"{Constants.FILES_TO_PROC}";
            //await ExecFlushRedisPattern(currKey);
            string valSer = JsonConvert.SerializeObject(fileNewInfo, JSSettings);

            await RedHashUpsert(currKey, origFileName, valSer);

            fatto = true;

            return fatto;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="pattern"></param>
        /// <returns></returns>
        public async Task<bool> ExecFlushRedisPattern(RedisValue pattern)
        {
            bool answ = false;
            var listEndpoints = redisConn.GetEndPoints();
            foreach (var endPoint in listEndpoints)
            {
                //var server = redisConnAdmin.GetServer(listEndpoints[0]);
                var server = redisConn.GetServer(endPoint);
                if (server != null)
                {
                    var keyList = server.Keys(redisDb.Database, pattern);
                    foreach (var item in keyList)
                    {
                        await redisDb.KeyDeleteAsync(item);
                    }
                    answ = true;
                }
            }

            return answ;
        }

        public async Task<Dictionary<string, FilesClass>> FilesGetAll()
        {
            Dictionary<string, FilesClass> dbResult = new Dictionary<string, FilesClass>();
            string currKey = $"{Constants.FILES_TO_PROC}";
            var rawData = await redisDb.HashGetAllAsync(currKey);
            foreach (var item in rawData)
            {
                var desVal = JsonConvert.DeserializeObject<FilesClass>(item.Value);
                dbResult.Add($"{item.Name}", desVal);
            }

            return dbResult;
        }

        /// <summary>
        /// Effettua upsert in HasList redis
        /// </summary>
        /// <param name="currKey">Chiave redis della Hashlist</param>
        /// <param name="chiave">Chiave nella HashList</param>
        /// <param name="valore">Valore da salvare</param>
        /// <returns>Num record nella HashList</returns>
        protected async Task<long> RedHashUpsert(RedisKey currKey, string chiave, string valore)
        {
            long numReq = 0;
            Stopwatch stopWatch = new Stopwatch();
            stopWatch.Start();
            await redisDb.HashSetAsync(currKey, chiave, valore);
            numReq = await redisDb.HashLengthAsync(currKey);
            stopWatch.Stop();
            TimeSpan ts = stopWatch.Elapsed;
            Log.Trace($"RedHashUpsert | {currKey} | in: {ts.TotalMilliseconds} ms");
            return numReq;
        }
        #region Private Properties

        /// <summary>
        /// Durata cache breve (1 min circa + perturbazione percentuale +/-10%)
        /// </summary>
        private TimeSpan FastCache
        {
            get => TimeSpan.FromSeconds(cacheTtlShort * rnd.Next(900, 1100) / 1000);
        }

        /// <summary>
        /// Durata cache lunga (+ perturbazione percentuale +/-10%)
        /// </summary>
        private TimeSpan LongCache
        {
            get => TimeSpan.FromSeconds(cacheTtlLong * rnd.Next(900, 1100) / 1000);
        }

        /// <summary>
        /// Durata cache molto breve (10 sec circa + perturbazione percentuale +/-10%)
        /// </summary>
        private TimeSpan UltraFastCache
        {
            get => TimeSpan.FromSeconds(cacheTtlShort / 6 * rnd.Next(900, 1100) / 1000);
        }

        /// <summary>
        /// Durata cache lunga (+ perturbazione percentuale +/-10%)
        /// </summary>
        private TimeSpan UltraLongCache
        {
            get => TimeSpan.FromSeconds(cacheTtlLong * 10 * rnd.Next(900, 1100) / 1000);
        }

        #endregion Private Properties
    }
}