package com.rj.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.rj.common.AudioManagementConstants;
import com.rj.common.DataEnrichmentUtil;
import com.rj.dto.CustomerPhotoPreviewResult;
import com.rj.dto.CustomerPhotoUploadResult;
import com.rj.dto.CustomerStageUpdateResult;
import com.rj.dto.NearbyMerchantSearchResult;
import com.rj.entity.AudioManagement;
import com.rj.entity.CustomerManagement;
import com.rj.entity.SalesManagement;
import com.rj.service.IAudioManagementService;
import com.rj.service.ICustomerManagementService;
import com.rj.service.INearbyMerchantSearchService;
import com.rj.service.ISalesManagementService;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.tags.Tag;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.InputStreamResource;
import org.springframework.core.io.Resource;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;

/**
 * <p>
 * 客户管理表 前端控制器
 * </p>
 *
 * @author 李中华 ,spllzh
 * @since 2025-08-07
 */
@RestController
@RequestMapping("/api/customerManagement")
@Tag(name = "客户管理", description = "客户管理相关接口")
public class CustomerManagementController {

    @Autowired
    private ICustomerManagementService customerManagementService;

    @Autowired
    private IAudioManagementService audioManagementService;

    @Autowired
    private ISalesManagementService salesManagementService;

    @Autowired
    private INearbyMerchantSearchService nearbyMerchantSearchService;

    /**
     * 新增客户
     */
    @PostMapping("/add")
    @Operation(summary = "新增客户", description = "添加新的客户信息")
    @Transactional(rollbackFor = Exception.class)
    public ResponseEntity<Map<String, Object>> addCustomer(
            @Parameter(description = "客户信息", required = true)
            @RequestBody CustomerManagement customerManagement) {
        Map<String, Object> result = new HashMap<>();
        try {
            boolean isUpdate = customerManagement.getId() != null && !customerManagement.getId().trim().isEmpty();
            LocalDateTime now = LocalDateTime.now();
            String operationType = customerManagement.getOperationType();
            String salesPhone = customerManagement.getSalesPhone();
            if (isUpdate) {
                CustomerManagement existing = customerManagementService.getById(customerManagement.getId());
                if (existing == null) {
                    result.put("success", false);
                    result.put("message", "客户不存在，无法更新");
                    return ResponseEntity.badRequest().body(result);
                }
//                customerManagement.setCreateTime(existing.getCreateTime());
                customerManagement.setUpdateTime(now);
                customerManagement.setRecordingCount(customerManagement.getRecordingCount()+1);
            } else {
                // 根据salesPhone查询销售管理表，获取经销商信息
                if (salesPhone != null && !salesPhone.trim().isEmpty()) {
                    LambdaQueryWrapper<SalesManagement> salesQueryWrapper = new LambdaQueryWrapper<>();
                    salesQueryWrapper.eq(SalesManagement::getLoginAccount, salesPhone.trim());
                    List<SalesManagement> salesList = salesManagementService.list(salesQueryWrapper);
                    if (salesList != null && !salesList.isEmpty()) {
                        SalesManagement sales = salesList.get(0);
                        customerManagement.setDealershipId(sales.getDealershipId());
                        customerManagement.setDealershipName(sales.getDealershipName());
                        // 同时设置销售ID和销售名称
                        if (customerManagement.getSalesId() == null || customerManagement.getSalesId().trim().isEmpty()) {
                            customerManagement.setSalesId(sales.getId());
                        }
                        if (customerManagement.getSalesName() == null || customerManagement.getSalesName().trim().isEmpty()) {
                            customerManagement.setSalesName(sales.getSalesName());
                        }
                    }
                }
                customerManagement.setCreateTime(now);
                customerManagement.setUpdateTime(now);
                customerManagement.setRecordingCount(1);
            }

            boolean success = customerManagementService.saveOrUpdate(customerManagement);
            if (success) {
                if ("start".equalsIgnoreCase(operationType)) {
                    if (customerManagement.getId() == null || customerManagement.getId().trim().isEmpty()) {
                        throw new IllegalStateException("客户ID为空，无法同步录音记录");
                    }
                    // 检查销售人员是否正在服务其他客户
                    if (salesPhone != null && !salesPhone.trim().isEmpty()) {
                        LambdaQueryWrapper<AudioManagement> queryWrapper = new LambdaQueryWrapper<>();
                        queryWrapper.eq(AudioManagement::getSalesPhone, salesPhone.trim())
                                .eq(AudioManagement::getServiceStatus, AudioManagementConstants.SERVICE_STATUS_IN_SERVICE);
                        long count = audioManagementService.count(queryWrapper);
                        if (count > 0) {  //如果正在服务，就直接返回，不能新增记录
                            result.put("success", true);
                            result.put("message", isUpdate ? "客户信息更新成功" : "客户添加成功");
                            result.put("message", "该销售人员正在服务其他客户，无法创建新的服务记录");
                            return ResponseEntity.badRequest().body(result);  //如果正在服务，就直接返回，不能新增记录
                        }
                    }
                    AudioManagement audioRecord = buildAudioRecordFromCustomer(customerManagement, now);
                    boolean audioSaved = audioManagementService.save(audioRecord);
                    if (!audioSaved) {
                        throw new IllegalStateException("录音管理数据保存失败");
                    }
                    result.put("audioRecordId", audioRecord.getId());
                }
                result.put("success", true);
                result.put("message", isUpdate ? "客户信息更新成功" : "客户添加成功");
                result.put("data", customerManagement);
                return ResponseEntity.ok(result);
            } else {
                result.put("success", false);
                result.put("message", isUpdate ? "客户信息更新失败" : "客户添加失败");
                return ResponseEntity.badRequest().body(result);
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("message", "客户添加异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(result);
        }
    }

    /**
     * 根据ID查询客户
     */
    @GetMapping("/get/{id}")
    @Operation(summary = "根据ID查询客户", description = "根据客户ID获取客户详细信息")
    public ResponseEntity<Map<String, Object>> getCustomerById(
            @Parameter(description = "客户ID", required = true)
            @PathVariable String id) {
        Map<String, Object> result = new HashMap<>();
        try {
            CustomerManagement customer = customerManagementService.getById(id);
            if (customer != null) {
                result.put("success", true);
                result.put("message", "查询成功");
                result.put("data", customer);
                return ResponseEntity.ok(result);
            } else {
                result.put("success", false);
                result.put("message", "客户不存在");
                return ResponseEntity.notFound().build();
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("message", "查询异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(result);
        }
    }

    /**
     * 根据联系方式查询客户
     */
    @GetMapping("/getByContact")
    @Operation(summary = "根据联系方式查询客户", description = "根据客户联系方式查询客户信息")
    public ResponseEntity<Map<String, Object>> getCustomerByContact(
            @Parameter(description = "联系方式", required = true)
            @RequestParam String contact) {
        Map<String, Object> result = new HashMap<>();
        try {
            LambdaQueryWrapper<CustomerManagement> queryWrapper = new LambdaQueryWrapper<>();
            if (contact != null && !contact.trim().isEmpty()) {
                queryWrapper.like(CustomerManagement::getContact, contact.trim());
            }
            List<CustomerManagement> customers = customerManagementService.list(queryWrapper);
            result.put("success", true);
            result.put("message", "查询成功");
            result.put("data", customers);
            result.put("count", customers.size());
            return ResponseEntity.ok(result);
        } catch (Exception e) {
            result.put("success", false);
            result.put("message", "查询异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(result);
        }
    }

    @Autowired
    private DataEnrichmentUtil dataEnrichmentUtil;

    /**
     * 根据城市与地址做地理编码，再按半径搜索周边商家（高德 place/around，逻辑同 AllShopCollectorV5）。
     */
    @GetMapping("/searchNearbyMerchants")
    @Operation(summary = "附近商家检索", description = "根据 CITY、ADDRESS 解析坐标，按 RADIUS、MAX_PAGE、maxRecordsOfpage 调用高德周边搜索")
    public ResponseEntity<Map<String, Object>> searchNearbyMerchants(
            @Parameter(description = "城市（传给高德地理编码 city）", required = true) @RequestParam("CITY") String city,
            @Parameter(description = "地址/地标（传给高德地理编码 address）", required = true) @RequestParam("ADDRESS") String address,
            @Parameter(description = "搜索半径（米）", required = true) @RequestParam("RADIUS") int radius,
            @Parameter(description = "最大请求页数", required = true) @RequestParam("MAX_PAGE") int maxPage,
            @Parameter(description = "每页条数（1～50，高德 offset）", required = true) @RequestParam("maxRecordsOfpage") int maxRecordsOfpage) {
        NearbyMerchantSearchResult search = nearbyMerchantSearchService.searchNearbyMerchants(
                city, address, radius, maxPage, maxRecordsOfpage);
        Map<String, Object> result = new HashMap<>();
        result.put("success", search.isSuccess());
        result.put("message", search.getMessage());
        if (search.isSuccess()) {
            result.put("centerLocation", search.getCenterLocation());
            result.put("totalCount", search.getTotalCount());
            result.put("data", search.getMerchants());
            result.put("detailedReport", search.getDetailedReport());
            result.put("customerInsertedCount", search.getCustomerInsertedCount());
        }
        return ResponseEntity.status(search.getHttpStatus()).body(result);
    }

    /**
     * 分页查询客户列表
     */
    @GetMapping("/list")
    @Operation(summary = "分页查询客户列表", description = "分页查询客户信息列表")
    public ResponseEntity<Map<String, Object>> getCustomerList(
            @Parameter(description = "页码", example = "1")
            @RequestParam(defaultValue = "1") Integer current,
            @Parameter(description = "每页大小", example = "10")
            @RequestParam(defaultValue = "10") Integer size,
            @Parameter(description = "客户姓名（模糊查询）")@RequestParam(required = false) String customerName,
            @Parameter(description = "所属人姓名（模糊查询）")@RequestParam(required = false) String salesName,
            @Parameter(description = "所属人电话")@RequestParam(required = false) String salesPhone,
            @Parameter(description = "联系方式（模糊查询）")
            @RequestParam(required = false) String contact,
            @Parameter(description = "联系方式（模糊查询）")
            @RequestParam(required = false) String stage
    ) {
        Map<String, Object> result = new HashMap<>();
        try {
            Page<CustomerManagement> page = new Page<>(current, size);
            LambdaQueryWrapper<CustomerManagement> queryWrapper = new LambdaQueryWrapper<>();
            
            // 添加查询条件
            if (customerName != null && !customerName.trim().isEmpty()) {
                queryWrapper.like(CustomerManagement::getCustomerName, customerName);
            }
            if (salesPhone != null && !salesPhone.trim().isEmpty()) {
                queryWrapper.like(CustomerManagement::getSalesPhone, salesPhone);
            }
            if (contact != null && !contact.trim().isEmpty()) {
                queryWrapper.like(CustomerManagement::getContact, contact);
            }
            if (stage != null && !stage.trim().isEmpty()) {
                queryWrapper.eq(CustomerManagement::getStage, stage);
            }
            // 按创建时间倒序排列
            queryWrapper.orderByDesc(CustomerManagement::getUpdateTime);
            
            Page<CustomerManagement> customerPage = customerManagementService.page(page, queryWrapper);

            // 使用工具类提取ID列表
            List<String> dealershipIds = DataEnrichmentUtil.extractIds(customerPage.getRecords(), CustomerManagement::getDealershipId);
            List<String> saleIds = DataEnrichmentUtil.extractIds(customerPage.getRecords(), CustomerManagement::getSalesId);

            // 使用工具类批量获取关联数据
            Map<String, String> dealershipNameMap = dataEnrichmentUtil.getDealershipIdNameMap(dealershipIds);
            Map<String, String> saleNameMap = dataEnrichmentUtil.getSalesIdNameMap(saleIds);

            // 填充关联数据
            customerPage.getRecords().forEach(customer -> {
                customer.setDealershipName(dealershipNameMap.get(customer.getDealershipId()));
                customer.setSalesName(saleNameMap.get(customer.getSalesId()));
            });


            result.put("success", true);
            result.put("message", "查询成功");
            result.put("data", customerPage.getRecords());
            result.put("total", customerPage.getTotal());
            result.put("current", customerPage.getCurrent());
            result.put("size", customerPage.getSize());
            result.put("pages", customerPage.getPages());
            
            return ResponseEntity.ok(result);
        } catch (Exception e) {
            result.put("success", false);
            result.put("message", "查询异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(result);
        }
    }

    /**
     * 更新客户信息
     */
    @PutMapping("/update")
    @Operation(summary = "更新客户信息", description = "更新客户详细信息")
    public ResponseEntity<Map<String, Object>> updateCustomer(
            @Parameter(description = "客户信息", required = true)
            @RequestBody CustomerManagement customerManagement) {
        Map<String, Object> result = new HashMap<>();
        try {
            if (customerManagement.getId() == null || customerManagement.getId().trim().isEmpty()) {
                result.put("success", false);
                result.put("message", "客户ID不能为空");
                return ResponseEntity.badRequest().body(result);
            }
            
            customerManagement.setUpdateTime(LocalDateTime.now());
            boolean success = customerManagementService.updateById(customerManagement);
            
            if (success) {
                result.put("success", true);
                result.put("message", "客户信息更新成功");
                result.put("data", customerManagement);
                return ResponseEntity.ok(result);
            } else {
                result.put("success", false);
                result.put("message", "客户信息更新失败");
                return ResponseEntity.badRequest().body(result);
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("message", "更新异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(result);
        }
    }

    /**
     * 根据客户 ID 更新阶段（stage）
     */
    @PatchMapping("/updateStage")
    @Operation(summary = "更新客户阶段", description = "根据客户 ID 更新 stage 字段")
    public ResponseEntity<Map<String, Object>> updateStage(
            @Parameter(description = "客户ID", required = true) @RequestParam String id,
            @Parameter(description = "阶段", required = true) @RequestParam String stage) {
        CustomerStageUpdateResult updateResult = customerManagementService.updateCustomerStage(id, stage);
        Map<String, Object> result = new HashMap<>();
        result.put("success", updateResult.isSuccess());
        result.put("message", updateResult.getMessage());
        if (updateResult.getCustomer() != null) {
            result.put("data", updateResult.getCustomer());
        }
        return ResponseEntity.status(updateResult.getHttpStatus()).body(result);
    }

    /**
     * 根据ID删除客户
     */
    @DeleteMapping("/delete/{id}")
    @Operation(summary = "删除客户", description = "根据客户ID删除客户信息")
    public ResponseEntity<Map<String, Object>> deleteCustomer(
            @Parameter(description = "客户ID", required = true)
            @PathVariable String id) {
        Map<String, Object> result = new HashMap<>();
        try {
            boolean success = customerManagementService.removeById(id);
            if (success) {
                result.put("success", true);
                result.put("message", "客户删除成功");
                return ResponseEntity.ok(result);
            } else {
                result.put("success", false);
                result.put("message", "客户删除失败");
                return ResponseEntity.badRequest().body(result);
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("message", "删除异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(result);
        }
    }

    /**
     * 批量删除客户
     */
    @DeleteMapping("/batchDelete")
    @Operation(summary = "批量删除客户", description = "根据客户ID列表批量删除客户信息")
    public ResponseEntity<Map<String, Object>> batchDeleteCustomers(
            @Parameter(description = "客户ID列表", required = true)
            @RequestBody List<String> ids) {
        Map<String, Object> result = new HashMap<>();
        try {
            if (ids == null || ids.isEmpty()) {
                result.put("success", false);
                result.put("message", "客户ID列表不能为空");
                return ResponseEntity.badRequest().body(result);
            }
            
            boolean success = customerManagementService.removeByIds(ids);
            if (success) {
                result.put("success", true);
                result.put("message", "批量删除成功，共删除 " + ids.size() + " 条记录");
                return ResponseEntity.ok(result);
            } else {
                result.put("success", false);
                result.put("message", "批量删除失败");
                return ResponseEntity.badRequest().body(result);
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("message", "批量删除异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(result);
        }
    }

    /**
     * 获取客户统计信息
     */
    @GetMapping("/statistics")
    @Operation(summary = "获取客户统计信息", description = "获取客户总数等统计信息")
    public ResponseEntity<Map<String, Object>> getCustomerStatistics() {
        Map<String, Object> result = new HashMap<>();
        try {
            long totalCount = customerManagementService.count();
            
            Map<String, Object> statistics = new HashMap<>();
            statistics.put("totalCustomers", totalCount);
            
            result.put("success", true);
            result.put("message", "统计信息获取成功");
            result.put("data", statistics);
            
            return ResponseEntity.ok(result);
        } catch (Exception e) {
            result.put("success", false);
            result.put("message", "统计信息获取异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(result);
        }
    }

    /**
     * 客户照片上传至 MinIO，返回可访问 URL
     */
    @PostMapping("/uploadPhoto")
    @Operation(summary = "上传客户照片", description = "根据客户ID上传照片到 MinIO，返回文件访问 URL")
    public ResponseEntity<Map<String, Object>> uploadCustomerPhoto(
            @Parameter(description = "客户ID")
            @RequestParam String id,
            @Parameter(description = "照片文件", required = true)
            @RequestParam("file") MultipartFile file) {
        CustomerPhotoUploadResult uploadResult = customerManagementService.uploadCustomerPhoto(id, file);
        Map<String, Object> result = new HashMap<>();
        result.put("success", uploadResult.isSuccess());
        result.put("message", uploadResult.getMessage());
        if (uploadResult.getUrl() != null) {
            result.put("url", uploadResult.getUrl());
        }
        return ResponseEntity.status(uploadResult.getHttpStatus()).body(result);
    }

    /**
     * 客户照片预览：从 MinIO 拉流返回图片。
     * 方式一：传 {@code url}（与上传接口返回的 MinIO 访问 URL 一致）。
     * 方式二：传 {@code id} + {@code photoType}（front / side / life），读取客户表中对应照片 URL。
     */
    @GetMapping("/previewPhoto")
    @Operation(summary = "预览客户照片", description = "根据 MinIO URL 或客户ID+照片类型从 MinIO 读取并返回图片流，便于 img 标签 src 引用")
    public ResponseEntity<Resource> previewCustomerPhoto(
            @Parameter(description = "MinIO 完整访问 URL（与 uploadPhoto 返回的 url 一致）")
            @RequestParam(required = false) String url,
            @Parameter(description = "客户ID，与 photoType 联用")
            @RequestParam(required = false) String id,
            @Parameter(description = "照片类型：front 正面 / side 侧面 / life 生活照", example = "front")
            @RequestParam(required = false) String photoType) {
        CustomerPhotoPreviewResult preview = customerManagementService.openCustomerPhotoPreview(url, id, photoType);
        if (preview.getStatus() == CustomerPhotoPreviewResult.Status.NOT_FOUND) {
            return ResponseEntity.notFound().build();
        }
        if (preview.getStatus() == CustomerPhotoPreviewResult.Status.BAD_REQUEST) {
            return ResponseEntity.badRequest().build();
        }
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.parseMediaType(preview.getContentType()));
        headers.setCacheControl("private, max-age=3600");
        Resource resource = new InputStreamResource(preview.getInputStream());
        return ResponseEntity.ok().headers(headers).body(resource);
    }

    private AudioManagement buildAudioRecordFromCustomer(CustomerManagement customer, LocalDateTime now) {
        AudioManagement audio = new AudioManagement();
        audio.setId(UUID.randomUUID().toString());
        String recordingName = customer.getCustomerName() != null && !customer.getCustomerName().trim().isEmpty()
                ? customer.getCustomerName() + "的接待记录"
                : "客户接待记录";
        audio.setRecordingName(recordingName);
        audio.setRecordingTime(now);
        audio.setUploadTime(now);
        audio.setCreateTime(now);
        audio.setUpdateTime(now);
        audio.setCustomerId(customer.getId());
        audio.setCustomerName(customer.getCustomerName());
        audio.setCustomerPhone(customer.getContact());
        audio.setSalesId(customer.getSalesId());
        audio.setSalesName(customer.getSalesName());
        audio.setSalesPhone(customer.getSalesPhone());
        audio.setDealershipId(customer.getDealershipId());
        audio.setDealershipName(customer.getDealershipName());
        audio.setIntentionLevel(customer.getStage());
        audio.setRemarks(customer.getDetailedAddress());
        audio.setInfoCarddescription(customer.getInfoCard());
        audio.setCompanyType(customer.getCustomerSource());
        audio.setScenario(customer.getScenario());
        audio.setServiceStatus(AudioManagementConstants.SERVICE_STATUS_IN_SERVICE);
        return audio;
    }
}