using SJZY.Expand.ABP.Core;
using SJZY.Track.Domain.Aggregates.TrackStatusAggregate;
using SJZY.Track.Domain.Extensions;
using Volo.Abp.DependencyInjection;

namespace SJZY.Track.Application.Caching;

/// <summary>
/// 轨迹状态id名称字典缓存
/// </summary>
public class TrackStatusNameDictCache : BasicCacheForPeriodicRefresh<int, string>, ISingletonDependency
{
    private readonly ITrackStatusRepository _trackStatusRepository;

    public TrackStatusNameDictCache(ITrackStatusRepository trackStatusRepository) : base(RedisHelper.Client)
    {
        _trackStatusRepository = trackStatusRepository;
    }

    protected override string BuildRedisKey(int key) => $"{GlobalConst.TrackDataDictKeyPrefix}:TrackStatus:{key}";

    protected override TimeSpan RedisExpire => TimeSpan.FromSeconds(-1); // 设置缓存不过期，指定id状态删除时仍能提供兜底状态名称
    protected override TimeSpan LocalExpire => TimeSpan.FromMinutes(5); // 本地缓存5分钟过期后在次请求会刷新数据
    protected override TimeSpan MissingKeySetNullRedisExpire => TimeSpan.FromMinutes(1); // 缓存不存在时设置redisNull

    protected override async ValueTask<string?> LoadAsync(int key)
    {
        if (key == 0) return null;
        return await _trackStatusRepository.GetFirstAsync(x => x.Id == key, x => x.Status);
    }

    protected override async ValueTask<Dictionary<int, string>> LoadAsync(HashSet<int> keys)
    {
        if (keys.Count == 0) return Empty<int, string>.Dict;
        var result = await _trackStatusRepository.GetListAsync(x => keys.Contains(x.Id), x => new
        {
            x.Id,
            x.Status
        });

        return result.Count == 0
            ? Empty<int, string>.Dict
            : result.ToDictionary(x => x.Id, y => y.Status);
    }
}