115 lines
3.9 KiB
C#
115 lines
3.9 KiB
C#
using HoneyBox.Core.Interfaces;
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using Microsoft.Extensions.Logging;
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namespace HoneyBox.Core.Services;
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/// <summary>
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/// 商品缓存服务实现
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/// </summary>
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public class GoodsCacheService : IGoodsCacheService
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{
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private readonly IRedisService _redisService;
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private readonly ILogger<GoodsCacheService> _logger;
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// 缓存键前缀 - 与PHP保持一致
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private const string JoinCountKeyPrefix = "order_goods_count:";
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private const string GoodsListKeyPrefix = "goods_list_";
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private const string GoodsDetailKeyPrefix = "goods_detail_";
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// 缓存过期时间
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private static readonly TimeSpan JoinCountExpiry = TimeSpan.FromMinutes(5);
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private static readonly TimeSpan GoodsListExpiry = TimeSpan.FromSeconds(30);
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private static readonly TimeSpan GoodsDetailExpiry = TimeSpan.FromMinutes(5);
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public GoodsCacheService(
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IRedisService redisService,
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ILogger<GoodsCacheService> logger)
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{
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_redisService = redisService;
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_logger = logger;
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}
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/// <inheritdoc />
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public async Task<int> GetJoinCountAsync(int goodsId)
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{
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var key = $"{JoinCountKeyPrefix}{goodsId}";
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var value = await _redisService.GetStringAsync(key);
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if (int.TryParse(value, out var count))
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{
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return count;
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}
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// 返回-1表示缓存不存在
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return -1;
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}
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/// <inheritdoc />
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public async Task SetJoinCountAsync(int goodsId, int count)
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{
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var key = $"{JoinCountKeyPrefix}{goodsId}";
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await _redisService.SetStringAsync(key, count.ToString(), JoinCountExpiry);
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}
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/// <inheritdoc />
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public async Task<int> IncrementJoinCountAsync(int goodsId)
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{
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var key = $"{JoinCountKeyPrefix}{goodsId}";
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var currentValue = await GetJoinCountAsync(goodsId);
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var newValue = currentValue > 0 ? currentValue + 1 : 1;
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await _redisService.SetStringAsync(key, newValue.ToString(), JoinCountExpiry);
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return newValue;
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}
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/// <inheritdoc />
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public async Task InvalidateGoodsCacheAsync(int goodsId)
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{
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// 清除参与次数缓存
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var joinCountKey = $"{JoinCountKeyPrefix}{goodsId}";
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await _redisService.DeleteAsync(joinCountKey);
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// 清除商品详情缓存 - 由于箱号可能有多个，这里清除所有可能的箱号缓存
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// 注意：实际生产环境中可能需要使用Redis的SCAN命令来批量删除
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// 这里简化处理，只清除常见的箱号范围（0-100）
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var deleteTasks = new List<Task>();
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for (int num = 0; num <= 100; num++)
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{
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var detailKey = $"{GoodsDetailKeyPrefix}{goodsId}_{num}";
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deleteTasks.Add(_redisService.DeleteAsync(detailKey));
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}
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await Task.WhenAll(deleteTasks);
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_logger.LogInformation("已清除商品 {GoodsId} 的所有缓存（参与次数、商品详情）", goodsId);
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}
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/// <inheritdoc />
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public async Task<string?> GetGoodsListCacheAsync(string cacheKey)
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{
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var key = $"{GoodsListKeyPrefix}{cacheKey}";
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return await _redisService.GetStringAsync(key);
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}
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/// <inheritdoc />
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public async Task SetGoodsListCacheAsync(string cacheKey, string data, TimeSpan expiry)
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{
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var key = $"{GoodsListKeyPrefix}{cacheKey}";
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await _redisService.SetStringAsync(key, data, expiry);
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}
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/// <inheritdoc />
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public async Task<string?> GetGoodsDetailCacheAsync(int goodsId, int goodsNum)
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{
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var key = $"{GoodsDetailKeyPrefix}{goodsId}_{goodsNum}";
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return await _redisService.GetStringAsync(key);
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}
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/// <inheritdoc />
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public async Task SetGoodsDetailCacheAsync(int goodsId, int goodsNum, string data, TimeSpan expiry)
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{
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var key = $"{GoodsDetailKeyPrefix}{goodsId}_{goodsNum}";
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await _redisService.SetStringAsync(key, data, expiry);
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}
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}
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