feat: implement true batchGetIncrGroupMember RPC method and dependency methods. (#2417)

* update wip contents.

* update protocol pkg.

* feat: add BatchOption struct and method.

* fix: remove unnecessary field.

* feat: implement true BatchGetIncrGroupMember RPC method and corresponding dependency methods.

* fix: update mongo version collection have unique index.

* optimize method structures.

* update resp in add sortVersion field.

* fix uncorrect condition.

* add errs pkg.

internal/api/group.go

@@ -19,8 +19,6 @@ import (
 	"github.com/openimsdk/open-im-server/v3/pkg/rpcclient"
 	"github.com/openimsdk/protocol/group"
 	"github.com/openimsdk/tools/a2r"
-	"github.com/openimsdk/tools/apiresp"
-	"github.com/openimsdk/tools/log"
 )
 
 type GroupApi rpcclient.Group
@@ -148,45 +146,7 @@ func (o *GroupApi) GetIncrementalGroupMember(c *gin.Context) {
 }
 
 func (o *GroupApi) GetIncrementalGroupMemberBatch(c *gin.Context) {
-	type BatchIncrementalReq struct {
-		UserID string                                `json:"user_id"`
-		List   []*group.GetIncrementalGroupMemberReq `json:"list"`
-	}
-	type BatchIncrementalResp struct {
-		List map[string]*group.GetIncrementalGroupMemberResp `json:"list"`
-	}
-	req, err := a2r.ParseRequestNotCheck[BatchIncrementalReq](c)
-	if err != nil {
-		apiresp.GinError(c, err)
-		return
-	}
-	resp := &BatchIncrementalResp{
-		List: make(map[string]*group.GetIncrementalGroupMemberResp),
-	}
-	var (
-		changeCount int
-	)
-	for _, req := range req.List {
-		if _, ok := resp.List[req.GroupID]; ok {
-			continue
-		}
-		res, err := o.Client.GetIncrementalGroupMember(c, req)
-		if err != nil {
-			if len(resp.List) == 0 {
-				apiresp.GinError(c, err)
-			} else {
-				log.ZError(c, "group incr sync versopn", err, "groupID", req.GroupID, "success", len(resp.List))
-				apiresp.GinSuccess(c, resp)
-			}
-			return
-		}
-		resp.List[req.GroupID] = res
-		changeCount += len(res.Insert) + len(res.Delete) + len(res.Update)
-		if changeCount >= 200 {
-			break
-		}
-	}
-	apiresp.GinSuccess(c, resp)
+	a2r.Call(group.GroupClient.BatchGetIncrementalGroupMember, o.Client, c)
 }
 
 func (o *GroupApi) GetFullGroupMemberUserIDs(c *gin.Context) {