// src/main/java/com/bjtds/brichat/controller/KnowledgeBaseController.java
package com.bjtds.brichat.controller;

import com.bjtds.brichat.dto.DatasetIdsDTO;
import com.bjtds.brichat.entity.dataset.TUserDataset;
import com.bjtds.brichat.entity.dataset.WorkflowDatasetDto;
import com.bjtds.brichat.entity.dto.KnowledgeBaseDto;
import com.bjtds.brichat.entity.dto.RecordDto;
import com.bjtds.brichat.service.EsKnowledgeService;
import com.bjtds.brichat.service.KnowledgeBaseService;
import com.bjtds.brichat.util.ResultUtils;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.io.IOException;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.UUID;

@Api(tags = "知识库检索接口")
@CrossOrigin(value = "*",maxAge = 3600)
@RestController
@RequestMapping("/knowledge-base")
public class KnowledgeBaseController {

    @Autowired
    private KnowledgeBaseService knowledgeBaseService;
    @Autowired
    private EsKnowledgeService esKnowledgeService;

    @ApiOperation("返回检索数据")
    @PostMapping("/retrieval")
    public ResultUtils retrieval(@RequestBody KnowledgeBaseDto knowledgeBaseDto) throws Exception{
        List<RecordDto> retrievalResult = knowledgeBaseService.retrieval(knowledgeBaseDto);
        return ResultUtils.success(retrievalResult);
    }
    @ApiOperation("Es全文检索")
    @GetMapping("/search")
    public ResultUtils search(@RequestParam("keyword") String keyword) {
        try {
            List<Map<String, Object>> results = esKnowledgeService.search(keyword);
            return ResultUtils.success(results);
        } catch (IOException e) {
            return ResultUtils.error("检索失败");
        }
    }

    @ApiOperation("返回关联表数据")
    @GetMapping("/getWorkflowAndDatasetTableData")
    public ResultUtils getWorkflowAndDatasetTableData() throws Exception {
        List<WorkflowDatasetDto> workflowDatasets = knowledgeBaseService.getWorkflowAndDatasetTableData();
        return ResultUtils.success(workflowDatasets);
    }
    
    @ApiOperation("根据 appId 获取 workflow graph 数据中的 dataset_ids")
    @GetMapping("/workflow-graph/{appId}")
    public ResultUtils getWorkflowGraphByAppId(@PathVariable("appId") String appIdStr) throws Exception {
        try {
            UUID appId = UUID.fromString(appIdStr);
            List<String> datasetIds = knowledgeBaseService.getWorkflowGraphByAppId(appId);
            return ResultUtils.success(datasetIds);
        } catch (IllegalArgumentException e) {
            return ResultUtils.error("无效的 appId 格式");
        } catch (Exception e) {
            return ResultUtils.error("获取 workflow graph 数据失败: " + e.getMessage());
        }
    }
    
    @ApiOperation("获取所有用户数据集记录")
    @GetMapping("/user-datasets")
    public ResultUtils getAllUserDatasets() throws Exception {
        List<TUserDataset> userDatasets = knowledgeBaseService.getAllUserDatasets();
        return ResultUtils.success(userDatasets);
    }
    
    @ApiOperation("向工作流中添加数据集")
    @PostMapping("/workflow/{appId}/datasets")
    public ResultUtils addDatasetsToWorkflow(@PathVariable("appId") String appIdStr, 
                                            @RequestBody DatasetIdsDTO datasetIdsDTO) throws Exception {
        try {
            UUID appId = UUID.fromString(appIdStr);
            boolean success = knowledgeBaseService.addDatasetsToWorkflow(appId, datasetIdsDTO.getDatasetIds());
            if (success) {
                return ResultUtils.success("数据集添加成功");
            } else {
                return ResultUtils.error("数据集添加失败");
            }
        } catch (IllegalArgumentException e) {
            return ResultUtils.error("无效的 appId 格式");
        } catch (Exception e) {
            return ResultUtils.error("添加数据集失败: " + e.getMessage());
        }
    }
    
    @ApiOperation("从工作流中删除数据集")
    @DeleteMapping("/workflow/{appId}/datasets")
    public ResultUtils removeDatasetsFromWorkflow(@PathVariable("appId") String appIdStr, 
                                                 @RequestBody DatasetIdsDTO datasetIdsDTO) throws Exception {
        try {
            UUID appId = UUID.fromString(appIdStr);
            boolean success = knowledgeBaseService.removeDatasetsFromWorkflow(appId, datasetIdsDTO.getDatasetIds());
            if (success) {
                return ResultUtils.success("数据集删除成功");
            } else {
                return ResultUtils.error("数据集删除失败");
            }
        } catch (IllegalArgumentException e) {
            return ResultUtils.error("无效的 appId 格式");
        } catch (Exception e) {
            return ResultUtils.error("删除数据集失败: " + e.getMessage());
        }
    }
}