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82 lines
2.3 KiB
82 lines
2.3 KiB
// Copyright 2022 ROC. All rights reserved.
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// Use of this source code is governed by a MIT style
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// license that can be found in the LICENSE file.
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package web
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import (
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"fmt"
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"github.com/alimy/mir/v4"
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"github.com/gin-gonic/gin"
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api "github.com/rocboss/paopao-ce/auto/api/v1"
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"github.com/rocboss/paopao-ce/internal/conf"
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"github.com/rocboss/paopao-ce/internal/core"
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"github.com/rocboss/paopao-ce/internal/model/joint"
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"github.com/rocboss/paopao-ce/internal/model/web"
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"github.com/rocboss/paopao-ce/internal/servants/base"
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"github.com/rocboss/paopao-ce/internal/servants/chain"
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"github.com/sirupsen/logrus"
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)
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var (
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_ api.Trends = (*trendsSrv)(nil)
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)
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type trendsSrv struct {
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api.UnimplementedTrendsServant
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*base.DaoServant
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ac core.AppCache
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indexTrendsExpire int64
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prefixTrends string
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}
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func (s *trendsSrv) Chain() gin.HandlersChain {
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return gin.HandlersChain{chain.JWT()}
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}
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func (s *trendsSrv) GetIndexTrends(req *web.GetIndexTrendsReq) (res *web.GetIndexTrendsResp, _ mir.Error) {
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limit, offset := req.PageSize, (req.Page-1)*req.PageSize
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// 尝试直接从缓存中获取数据
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key, ok := "", false
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if res, key, ok = s.trendsFromCache(req, limit, offset); ok {
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// logrus.Debugf("trendsSrv.GetIndexTrends from cache key:%s", key)
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return
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}
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trends, totalRows, err := s.Ds.GetIndexTrends(req.Uid, limit, offset)
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if err != nil {
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logrus.Errorf("Ds.GetIndexTrends err[1]: %s", err)
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return nil, web.ErrGetIndexTrendsFailed
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}
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resp := joint.PageRespFrom(trends, req.Page, req.PageSize, totalRows)
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// 缓存处理
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base.OnCacheRespEvent(s.ac, key, resp, s.indexTrendsExpire)
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return &web.GetIndexTrendsResp{
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CachePageResp: joint.CachePageResp{
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Data: resp,
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},
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}, nil
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}
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func (s *trendsSrv) trendsFromCache(req *web.GetIndexTrendsReq, limit int, offset int) (res *web.GetIndexTrendsResp, key string, ok bool) {
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key = fmt.Sprintf("%s%d:%d:%d", s.prefixTrends, req.Uid, limit, offset)
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if data, err := s.ac.Get(key); err == nil {
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ok, res = true, &web.GetIndexTrendsResp{
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CachePageResp: joint.CachePageResp{
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JsonResp: data,
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},
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}
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}
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return
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}
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func newTrendsSrv(s *base.DaoServant) api.Trends {
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cs := conf.CacheSetting
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return &trendsSrv{
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DaoServant: s,
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ac: _ac,
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indexTrendsExpire: cs.IndexTrendsExpire,
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prefixTrends: conf.PrefixIdxTrends,
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}
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}
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