feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/application/conversation/openapi_message.go

@@ -0,0 +1,133 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package conversation
+
+import (
+	"context"
+	"strconv"
+
+	"github.com/coze-dev/coze-studio/backend/api/model/conversation/message"
+	"github.com/coze-dev/coze-studio/backend/api/model/conversation/run"
+	message3 "github.com/coze-dev/coze-studio/backend/api/model/crossdomain/message"
+	"github.com/coze-dev/coze-studio/backend/application/base/ctxutil"
+	convEntity "github.com/coze-dev/coze-studio/backend/domain/conversation/conversation/entity"
+	"github.com/coze-dev/coze-studio/backend/domain/conversation/message/entity"
+	"github.com/coze-dev/coze-studio/backend/pkg/errorx"
+	"github.com/coze-dev/coze-studio/backend/pkg/lang/ptr"
+	"github.com/coze-dev/coze-studio/backend/pkg/lang/slices"
+	"github.com/coze-dev/coze-studio/backend/types/errno"
+)
+
+type OpenapiMessageApplication struct{}
+
+var OpenapiMessageApplicationService = new(OpenapiMessageApplication)
+
+func (m *OpenapiMessageApplication) GetApiMessageList(ctx context.Context, mr *message.ListMessageApiRequest) (*message.ListMessageApiResponse, error) {
+	// Get Conversation ID by agent id & userID & scene
+	userID := ctxutil.MustGetUIDFromApiAuthCtx(ctx)
+
+	currentConversation, err := getConversation(ctx, mr.ConversationID)
+	if err != nil {
+		return nil, err
+	}
+
+	if currentConversation == nil {
+		return nil, errorx.New(errno.ErrConversationNotFound)
+	}
+
+	if currentConversation.CreatorID != userID {
+		return nil, errorx.New(errno.ErrConversationPermissionCode, errorx.KV("msg", "permission denied"))
+	}
+
+	msgListMeta := &entity.ListMeta{
+		ConversationID: currentConversation.ID,
+		AgentID:        currentConversation.AgentID,
+		Limit:          int(ptr.From(mr.Limit)),
+	}
+
+	if mr.BeforeID != nil {
+		msgListMeta.Direction = entity.ScrollPageDirectionPrev
+		msgListMeta.Cursor = *mr.BeforeID
+	} else {
+		msgListMeta.Direction = entity.ScrollPageDirectionNext
+		msgListMeta.Cursor = ptr.From(mr.AfterID)
+	}
+	if mr.Order == nil {
+		msgListMeta.OrderBy = ptr.Of(message.OrderByDesc)
+	} else {
+		msgListMeta.OrderBy = mr.Order
+	}
+
+	mListMessages, err := ConversationSVC.MessageDomainSVC.List(ctx, msgListMeta)
+	if err != nil {
+		return nil, err
+	}
+
+	// get agent id
+	var agentIDs []int64
+	for _, mOne := range mListMessages.Messages {
+		agentIDs = append(agentIDs, mOne.AgentID)
+	}
+
+	resp := m.buildMessageListResponse(ctx, mListMessages, currentConversation)
+
+	return resp, err
+}
+
+func getConversation(ctx context.Context, conversationID int64) (*convEntity.Conversation, error) {
+	conversationInfo, err := ConversationSVC.ConversationDomainSVC.GetByID(ctx, conversationID)
+	if err != nil {
+		return nil, err
+	}
+	return conversationInfo, nil
+}
+
+func (m *OpenapiMessageApplication) buildMessageListResponse(ctx context.Context, mListMessages *entity.ListResult, currentConversation *convEntity.Conversation) *message.ListMessageApiResponse {
+	messagesVO := slices.Transform(mListMessages.Messages, func(dm *entity.Message) *message.OpenMessageApi {
+
+		content := dm.Content
+
+		msg := &message.OpenMessageApi{
+			ID:             dm.ID,
+			ConversationID: dm.ConversationID,
+			BotID:          dm.AgentID,
+			Role:           string(dm.Role),
+			Type:           string(dm.MessageType),
+			Content:        content,
+			ContentType:    string(dm.ContentType),
+			SectionID:      strconv.FormatInt(dm.SectionID, 10),
+			CreatedAt:      dm.CreatedAt,
+			UpdatedAt:      dm.UpdatedAt,
+			ChatID:         dm.RunID,
+			MetaData:       dm.Ext,
+		}
+		if dm.ContentType == message3.ContentTypeMix && dm.DisplayContent != "" {
+			msg.Content = dm.DisplayContent
+			msg.ContentType = run.ContentTypeMixApi
+		}
+		return msg
+	})
+
+	resp := &message.ListMessageApiResponse{
+		Messages: messagesVO,
+		HasMore:  ptr.Of(mListMessages.HasMore),
+		FirstID:  ptr.Of(mListMessages.PrevCursor),
+		LastID:   ptr.Of(mListMessages.NextCursor),
+	}
+
+	return resp
+}