package com.ipsen.medical.controller;

import com.ipsen.medical.dto.ApiResponse;
import com.ipsen.medical.dto.ClinicalTrialDTO;
import com.ipsen.medical.dto.DataSourceSelectionDTO;
import com.ipsen.medical.dto.InquiryRequestDTO;
import com.ipsen.medical.dto.KeywordConfirmationDTO;
import com.ipsen.medical.service.AutoSearchService;
import com.ipsen.medical.service.ClinicalTrialsService;
import com.ipsen.medical.service.InquiryService;
import lombok.RequiredArgsConstructor;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import java.util.List;

/**
 * 查询请求控制器
 */
@RestController
@RequestMapping("/inquiries")
@RequiredArgsConstructor
@CrossOrigin(origins = "*")
public class InquiryController {
    
    private final InquiryService inquiryService;
    private final ClinicalTrialsService clinicalTrialsService;
    private final AutoSearchService autoSearchService;
    
    /**
     * 上传查询表格
     */
    @PostMapping("/upload")
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> uploadInquiry(
            @RequestParam("file") MultipartFile file) {
        InquiryRequestDTO result = inquiryService.uploadInquiry(file);
        return ResponseEntity.ok(ApiResponse.success(result));
    }
    
    /**
     * 创建查询请求
     */
    @PostMapping
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> createInquiry(
            @RequestBody InquiryRequestDTO inquiryRequestDTO) {
        InquiryRequestDTO result = inquiryService.createInquiry(inquiryRequestDTO);
        return ResponseEntity.ok(ApiResponse.success(result));
    }
    
    /**
     * 获取查询请求详情
     */
    @GetMapping("/{id}")
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> getInquiry(@PathVariable Long id) {
        InquiryRequestDTO result = inquiryService.getInquiry(id);
        return ResponseEntity.ok(ApiResponse.success(result));
    }
    
    /**
     * 获取所有查询请求
     */
    @GetMapping
    public ResponseEntity<ApiResponse<List<InquiryRequestDTO>>> getAllInquiries(
            @RequestParam(required = false) String status) {
        List<InquiryRequestDTO> results = inquiryService.getAllInquiries(status);
        return ResponseEntity.ok(ApiResponse.success(results));
    }
    
    /**
     * 提取关键词
     */
    @PostMapping("/{id}/extract-keywords")
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> extractKeywords(@PathVariable Long id) {
        InquiryRequestDTO result = inquiryService.extractKeywords(id);
        return ResponseEntity.ok(ApiResponse.success(result));
    }
    
    /**
     * 确认和更新关键词
     */
    @PostMapping("/{id}/confirm-keywords")
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> confirmKeywords(
            @PathVariable Long id,
            @RequestBody KeywordConfirmationDTO keywordDTO) {
        InquiryRequestDTO result = inquiryService.confirmKeywords(id, keywordDTO);
        return ResponseEntity.ok(ApiResponse.success(result));
    }
    
    /**
     * 选择数据源
     */
    @PostMapping("/{id}/select-data-sources")
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> selectDataSources(
            @PathVariable Long id,
            @RequestBody DataSourceSelectionDTO dataSourceDTO) {
        InquiryRequestDTO result = inquiryService.selectDataSources(id, dataSourceDTO);
        return ResponseEntity.ok(ApiResponse.success(result));
    }
    
    /**
     * 执行信息检索
     */
    @PostMapping("/{id}/search")
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> performSearch(@PathVariable Long id) {
        InquiryRequestDTO result = inquiryService.performSearch(id);
        return ResponseEntity.ok(ApiResponse.success(result));
    }
    
    /**
     * 生成回复内容
     */
    @PostMapping("/{id}/generate-response")
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> generateResponse(@PathVariable Long id) {
        InquiryRequestDTO result = inquiryService.generateResponse(id);
        return ResponseEntity.ok(ApiResponse.success(result));
    }
    
    /**
     * 审核回复
     */
    @PostMapping("/{id}/review")
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> reviewResponse(
            @PathVariable Long id,
            @RequestParam Boolean approved,
            @RequestParam(required = false) String comments) {
        InquiryRequestDTO result = inquiryService.reviewResponse(id, approved, comments);
        return ResponseEntity.ok(ApiResponse.success(result));
    }
    
    /**
     * 完成查询请求
     */
    @PostMapping("/{id}/complete")
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> completeInquiry(@PathVariable Long id) {
        InquiryRequestDTO result = inquiryService.completeInquiry(id);
        return ResponseEntity.ok(ApiResponse.success(result));
    }
    
    /**
     * 搜索临床试验
     */
    @PostMapping("/{id}/clinical-trials/search")
    public ResponseEntity<ApiResponse<List<ClinicalTrialDTO>>> searchClinicalTrials(
            @PathVariable Long id,
            @RequestParam String keyword) {
        List<ClinicalTrialDTO> results = clinicalTrialsService.searchAndSaveForInquiry(id, keyword);
        return ResponseEntity.ok(ApiResponse.success(results));
    }
    
    /**
     * 获取查询请求的临床试验列表
     */
    @GetMapping("/{id}/clinical-trials")
    public ResponseEntity<ApiResponse<List<ClinicalTrialDTO>>> getClinicalTrials(@PathVariable Long id) {
        List<ClinicalTrialDTO> results = clinicalTrialsService.getClinicalTrialsByInquiry(id);
        return ResponseEntity.ok(ApiResponse.success(results));
    }
    
    /**
     * 导出临床试验为CSV
     */
    @GetMapping("/{id}/clinical-trials/export")
    public ResponseEntity<byte[]> exportClinicalTrialsToCsv(@PathVariable Long id) {
        byte[] csvData = clinicalTrialsService.exportToCsv(id);
        
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.parseMediaType("text/csv"));
        headers.setContentDispositionFormData("attachment", "clinical_trials_" + id + ".csv");
        
        return ResponseEntity.ok()
                .headers(headers)
                .body(csvData);
    }
    
    /**
     * 删除查询请求的临床试验数据
     */
    @DeleteMapping("/{id}/clinical-trials")
    public ResponseEntity<ApiResponse<Void>> deleteClinicalTrials(@PathVariable Long id) {
        clinicalTrialsService.deleteClinicalTrials(id);
        return ResponseEntity.ok(ApiResponse.success(null));
    }
    
    /**
     * 基于AI识别的关键词执行自动检索
     * 包括：临床试验、文献数据库等
     */
    @PostMapping("/{id}/auto-search")
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> performAutoSearch(@PathVariable Long id) {
        InquiryRequestDTO result = autoSearchService.performAutoSearch(id);
        return ResponseEntity.ok(ApiResponse.success(result));
    }
    
    /**
     * 执行完整的AI工作流
     * 1. 提取关键词
     * 2. 自动检索（临床试验、知识库）
     * 3. 生成回复
     */
    @PostMapping("/{id}/full-workflow")
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> executeFullWorkflow(@PathVariable Long id) {
        InquiryRequestDTO result = autoSearchService.executeFullWorkflow(id);
        return ResponseEntity.ok(ApiResponse.success(result));
    }

    /**
     * 根据选中的检索结果生成下载任务
     */
    @PostMapping("/{id}/downloads")
    public ResponseEntity<ApiResponse<InquiryRequestDTO>> generateDownloadTasks(
            @PathVariable Long id,
            @RequestBody List<Long> searchResultItemIds) {
        InquiryRequestDTO result = inquiryService.generateDownloadTasks(id, searchResultItemIds);
        return ResponseEntity.ok(ApiResponse.success(result));
    }
}