using System.Collections.Generic;
using System.Threading.Tasks;
using Volo.Abp;
using Volo.Abp.Caching;
using Win_in.Sfs.Shared.Application;
using Win_in.Sfs.Wms.Inventory.Application.Contracts;

namespace Win_in.Sfs.Wms.Job.Domain.Acl.LocationCapacity
{
    public class LocationCapacityAclService
        : AclServiceBase
        , ILocationCapacityAclService
    {
        private readonly ILocationCapacityAppService _appService;
        private readonly IDistributedCache<LocationCapacityDTO> _cache;

        public LocationCapacityAclService(
            ILocationCapacityAppService appService
            , IDistributedCache<LocationCapacityDTO> cache
            )
        {
            _appService = appService;
            _cache = cache;
        }

        public virtual async Task<LocationCapacityDTO> GetByLocationCodeAsync(string code)
        {
            var dto = await _cache.GetOrAddItemAsync(
                code,
                async () => await GetFromAppServiceAsync(code).ConfigureAwait(false),
                CacheMinutes).ConfigureAwait(false);
            return dto;
        }

        private async Task<LocationCapacityDTO> GetFromAppServiceAsync(string code)
        {
            var item = await _appService.GetByLocationCodeAsync(code).ConfigureAwait(false);
            Check.NotNull(item, "库位代码", $"库位容量 {code} 不存在");
            return item;

        }

        public virtual async Task<List<LocationCapacityDTO>> GetByLocationCodesAsync(IEnumerable<string> codes)
        {
            var dtos = new List<LocationCapacityDTO>();
            var notInCacheCodes = new List<string>();
            foreach (var code in codes)
            {
                var dto = await _cache.GetAsync(code).ConfigureAwait(false);
                if (dto == null)
                {
                    notInCacheCodes.Add(code);
                }
                else
                {
                    dtos.Add(dto);
                }
            }

            var notInCacheCodeDtos = await _appService.GetByLocationCodesAsync(notInCacheCodes).ConfigureAwait(false);

            foreach (var notInCacheCodeDto in notInCacheCodeDtos)
            {
                await _cache.SetItemAsync(notInCacheCodeDto.LocationCode, notInCacheCodeDto, CacheMinutes).ConfigureAwait(false);
            }

            dtos.AddRange(notInCacheCodeDtos);

            return dtos;
        }

        public virtual async Task<List<LocationInfoDTO>> GetUsableListAsync(List<LocationInfoInput> locationInfoInput)
        {
            return await _appService.GetUsableListAsync(locationInfoInput).ConfigureAwait(false);
        }
    }
}