using FMDAL.CustomCode.ScanZone;
using FMDAL.DTO.ScanZone;
using GB5Shared.DaprCache;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.EventLogPublish;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.QueryExecutor;
using GB5Shared.Resource.Response;
using GB5Shared.Telemetry;
using GB5Shared.Validation;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using static GB5Shared.GB5Constant.Constant;

namespace FMBLL.ScanZone
{
    public class ScanZoneBLL : IScanZoneBLL
    {
        private readonly IScanZoneDAL _dal;
        private readonly IQueryExecutor _queryExecutor;
        private readonly AutoNumber _autoNumber;
        private readonly KeyInvalidate _keyInvalidate;
        private readonly EventLogPublish _eventLog;
        private readonly IValidation _validation;
        private readonly ILogger<ScanZoneBLL> _logger;

        public ScanZoneBLL(
            IScanZoneDAL dal,
            IQueryExecutor queryExecutor,
            AutoNumber autoNumber,
            KeyInvalidate keyInvalidate,
            EventLogPublish eventLog,
            IValidation validation,
            ILogger<ScanZoneBLL> logger)
        {
            _dal = dal;
            _queryExecutor = queryExecutor;
            _autoNumber = autoNumber;
            _keyInvalidate = keyInvalidate;
            _eventLog = eventLog;
            _validation = validation;
            _logger = logger;
        }

        public async Task<ScanZoneDTO?> GetScanZone(int scanZoneId, LoginDTO login, CancellationToken ct)
            => await _dal.GetScanZone(scanZoneId, login, ct).ConfigureAwait(false);

        public async Task<IEnumerable<ScanZoneDTO>> GetScanZoneList(LoginDTO login, CancellationToken ct)
            => await _dal.GetScanZoneList(login, ct).ConfigureAwait(false);

        public async Task<string> SaveScanZone(ScanZoneDTO dto, LoginDTO login, CancellationToken ct)
        {
            try
            {
                GB5Trace.Step("validate-scanzone", new { dto.ScanZoneId, dto.ZoneCode });

                await _validation.NotEmpty(dto.ZoneCode, nameof(dto.ZoneCode)).ConfigureAwait(false);
                await _validation.NotEmpty(dto.ZoneName, nameof(dto.ZoneName)).ConfigureAwait(false);

                bool isNew = dto.ScanZoneId == 0;

                dto.TenantId = login.ClientId;
                dto.ModifiedById = login.UserId;
                dto.ModifiedOn = DateTime.UtcNow;
                if (dto.OUId <= 0)
                    dto.OUId = login.WorkOUId;

                GB5Trace.Step("save-scanzone", new { dto.ScanZoneId, isNew });

                await using var tx = await _queryExecutor.BeginTransactionAsync(login).ConfigureAwait(false);
                try
                {
                    if (isNew)
                    {
                        dto.CreatedById = login.UserId;
                        dto.CreatedOn = DateTime.UtcNow;

                        var auto = await _autoNumber.GetNumberAsync(1, AUTONUMBERCONSTANT.SCANZONE, login).ConfigureAwait(false);
                        dto.ScanZoneId = auto.StartNumber;
                        await _dal.SaveScanZone(dto, login, tx, ct).ConfigureAwait(false);
                    }
                    else
                    {
                        await _dal.UpdateScanZone(dto, login, tx, ct).ConfigureAwait(false);
                    }
                    await tx.CommitAsync(ct).ConfigureAwait(false);
                }
                catch
                {
                    await tx.RollbackAsync(ct).ConfigureAwait(false);
                    throw;
                }

                var cacheKey = new CacheKeyGeneration().KeyGeneration(dto.ScanZoneId, EntityConstant.OBJECTSCANZONE, CacheKeyLevel.CLIENT_LEVEL, login);
                await _keyInvalidate.AllInvalidateCache(cacheKey).ConfigureAwait(false);

                var eventTypeId = isNew ? EventTypeConstant.SAVESCANZONEEVENTTYPEID : EventTypeConstant.UPDATESCANZONEEVENTTYPEID;
                GB5Trace.Step("event-publish", new { EventTypeId = eventTypeId });
                await _eventLog.PublishEventLogAsync(
                    isNew ? "Scan Zone Created" : "Scan Zone Updated",
                    dto, eventTypeId, dto.ScanZoneId, login, ct: ct).ConfigureAwait(false);

                return isNew
                    ? $"{SuccessResponse.SaveSuccessMessage} {dto.ScanZoneId}"
                    : SuccessResponse.UpdateSuccess;
            }
            catch (Exception ex)
            {
                GB5Trace.MarkFailed("save-scanzone-failed", ex);
                _logger.LogError(ex, "SaveScanZone failed for ScanZoneId {Id}", dto.ScanZoneId);
                throw;
            }
        }

        public async Task<string> DeleteScanZone(int scanZoneId, LoginDTO login, CancellationToken ct)
        {
            try
            {
                GB5Trace.Step("delete-scanzone", new { scanZoneId });

                await using var tx = await _queryExecutor.BeginTransactionAsync(login).ConfigureAwait(false);
                try
                {
                    await _dal.DeleteScanZone(scanZoneId, login, tx, ct).ConfigureAwait(false);
                    await tx.CommitAsync(ct).ConfigureAwait(false);
                }
                catch
                {
                    await tx.RollbackAsync(ct).ConfigureAwait(false);
                    throw;
                }

                var cacheKey = new CacheKeyGeneration().KeyGeneration(scanZoneId, EntityConstant.OBJECTSCANZONE, CacheKeyLevel.CLIENT_LEVEL, login);
                await _keyInvalidate.AllInvalidateCache(cacheKey).ConfigureAwait(false);

                GB5Trace.Step("event-publish", new { EventTypeId = EventTypeConstant.DELETESCANZONEEVENTTYPEID });
                await _eventLog.PublishEventLogAsync(
                    "Scan Zone Deleted", scanZoneId, EventTypeConstant.DELETESCANZONEEVENTTYPEID, scanZoneId, login, ct: ct).ConfigureAwait(false);

                return SuccessResponse.DeleteSuccessMessage;
            }
            catch (Exception ex)
            {
                GB5Trace.MarkFailed("delete-scanzone-failed", ex);
                _logger.LogError(ex, "DeleteScanZone failed for ScanZoneId {Id}", scanZoneId);
                throw;
            }
        }
    }
}