feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/domain/knowledge/entity/document.go

@@ -0,0 +1,83 @@
+/*
+ * 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 entity
+
+import (
+	"github.com/coze-dev/coze-studio/backend/api/model/crossdomain/knowledge"
+	"github.com/coze-dev/coze-studio/backend/infra/contract/document"
+	"github.com/coze-dev/coze-studio/backend/infra/contract/document/parser"
+)
+
+type Document struct {
+	knowledge.Info
+
+	KnowledgeID      int64
+	Type             knowledge.DocumentType
+	RawContent       string               // 用户自定义的原始内容
+	URI              string               // 文档 uri
+	URL              string               // 文档 url
+	Size             int64                // 文档 bytes
+	SliceCount       int64                // slice 数量
+	CharCount        int64                // 文档字符数
+	FileExtension    parser.FileExtension // 文档后缀, csv/pdf...
+	Status           DocumentStatus       // 文档状态
+	StatusMsg        string               // 文档状态详细信息
+	Hits             int64                // 命中次数
+	Source           DocumentSource       // 文档来源
+	ParsingStrategy  *ParsingStrategy     // 解析策略
+	ChunkingStrategy *ChunkingStrategy    // 分段策略
+
+	TableInfo TableInfo
+	IsAppend  bool // 是否在表格中追加
+
+	// LevelURI   string // 层级分段预览 uri
+	// PreviewURI string // 预览 uri
+}
+
+type TableInfo struct {
+	VirtualTableName  string         `json:"virtual_table_name"`
+	PhysicalTableName string         `json:"physical_table_name"`
+	TableDesc         string         `json:"table_desc"`
+	Columns           []*TableColumn `json:"columns"`
+}
+type TableSheet struct {
+	SheetId       int64  // sheet id
+	HeaderLineIdx int64  // 表头行
+	StartLineIdx  int64  // 数据起始行
+	SheetName     string // sheet的名称
+	TotalRows     int64  // 总行数
+}
+type TableColumn struct {
+	ID          int64
+	Name        string
+	Type        document.TableColumnType
+	Description string
+	Indexing    bool  // 是否索引
+	Sequence    int64 // 表格中的原始序号
+}
+
+type WhereDocumentOpt struct {
+	IDs          []int64
+	KnowledgeIDs []int64
+	StatusIn     []int32
+	StatusNotIn  []int32
+	CreatorID    int64
+	Limit        int
+	Offset       *int
+	Cursor       *string
+	SelectAll    bool
+}