bilibili-backup/app/job/main/reply/service/fold.go
2019-04-22 02:59:20 +00:00

122 lines
2.8 KiB
Go

package service
import (
"context"
"encoding/json"
"time"
"go-common/app/job/main/reply/model/reply"
"go-common/library/database/sql"
"go-common/library/log"
)
func (s *Service) folderHanlder(ctx context.Context, msg *consumerMsg) {
var d struct {
Op string `json:"op"`
Oid int64 `json:"oid"`
Tp int8 `json:"tp"`
Root int64 `json:"root"`
}
if err := json.Unmarshal([]byte(msg.Data), &d); err != nil {
log.Error("json.Unmarshal() error(%v)", err)
return
}
switch d.Op {
case "re_idx":
s.recoverFolderIdx(ctx, d.Oid, d.Tp, d.Root)
// case "marker":
// 删除折叠评论后需要查询是否需要取消标记
// s.marker.Do(ctx, func(ctx context.Context) {
// s.handleHasFoldedMark(ctx, d.Oid, d.Tp, d.Root)
// })
default:
return
}
}
// handleFolded ...
func (s *Service) handleFolded(ctx context.Context, rp *reply.Reply) {
sub, root, err := s.handleHasFoldedMark(ctx, rp.Oid, rp.Type, rp.Root)
if err != nil {
return
}
if sub != nil {
s.dao.Mc.DeleteSub(ctx, sub.Oid, sub.Type)
}
if root != nil {
s.dao.Mc.DeleteReply(ctx, root.RpID)
}
s.remFoldedCache(ctx, rp)
}
func (s *Service) recoverFolderIdx(ctx context.Context, oid int64, tp int8, root int64) {
rps, err := s.dao.Reply.FoldedReplies(ctx, oid, tp, root)
if err != nil || len(rps) == 0 {
return
}
// 折叠根评论
if root == 0 {
s.dao.Redis.AddFolderBatch(ctx, reply.FolderKindSub, oid, rps)
} else {
s.dao.Redis.AddFolderBatch(ctx, reply.FolderKindRoot, root, rps)
}
}
func (s *Service) handleHasFoldedMark(ctx context.Context, oid int64, tp int8, root int64) (sub *reply.Subject, reply *reply.Reply, err error) {
var (
tx *sql.Tx
count int
)
if tx, err = s.dao.BeginTran(ctx); err != nil {
return
}
// 锁subject表
if sub, err = s.dao.Subject.GetForUpdate(tx, oid, tp); err != nil {
tx.Rollback()
return
}
if count, err = s.dao.Reply.TxCountFoldedReplies(tx, oid, tp, root); err != nil || count > 0 {
tx.Rollback()
return
}
// 折叠根评论
if root == 0 {
if !sub.HasFolded() {
tx.Rollback()
return
}
sub.UnmarkHasFolded()
if _, err = s.dao.Subject.TxUpAttr(tx, oid, tp, sub.Attr, time.Now()); err != nil {
tx.Rollback()
return
}
} else {
if reply, err = s.dao.Reply.GetForUpdate(tx, oid, root); err != nil {
tx.Rollback()
return
}
if !reply.HasFolded() {
tx.Rollback()
return
}
reply.UnmarkHasFolded()
if _, err = s.dao.Reply.TxUpAttr(tx, oid, root, reply.Attr, time.Now()); err != nil {
tx.Rollback()
return
}
}
if err = tx.Commit(); err != nil {
return
}
return
}
// remFoldedCache ...
func (s *Service) remFoldedCache(ctx context.Context, rp *reply.Reply) {
if rp.IsRoot() {
s.dao.Redis.RemFolder(ctx, reply.FolderKindSub, rp.Oid, rp.RpID)
} else {
s.dao.Redis.RemFolder(ctx, reply.FolderKindRoot, rp.Root, rp.RpID)
}
}