package com.rj.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.rj.entity.CustomerManagement;
import com.rj.service.ICustomerManagementService;
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.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

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

/**
 * <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;

    /**
     * 新增客户
     */
    @PostMapping("/add")
    @Operation(summary = "新增客户", description = "添加新的客户信息")
    public ResponseEntity<Map<String, Object>> addCustomer(
            @Parameter(description = "客户信息", required = true)
            @RequestBody CustomerManagement customerManagement) {
        Map<String, Object> result = new HashMap<>();
        try {
            customerManagement.setCreateTime(LocalDateTime.now());
            customerManagement.setUpdateTime(LocalDateTime.now());
            boolean success = customerManagementService.save(customerManagement);
            if (success) {
                result.put("success", true);
                result.put("message", "客户添加成功");
                result.put("data", customerManagement);
                return ResponseEntity.ok(result);
            } else {
                result.put("success", false);
                result.put("message", "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<>();
            queryWrapper.eq(CustomerManagement::getContact, contact);
            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);
        }
    }

    /**
     * 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 = "联系方式（模糊查询）")
            @RequestParam(required = false) String contact,
            @Parameter(description = "所属门店ID")
            @RequestParam(required = false) String dealershipId) {
        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 (contact != null && !contact.trim().isEmpty()) {
                queryWrapper.like(CustomerManagement::getContact, contact);
            }
            if (dealershipId != null && !dealershipId.trim().isEmpty()) {
                queryWrapper.eq(CustomerManagement::getDealershipId, dealershipId);
            }
            
            // 按创建时间倒序排列
            queryWrapper.orderByDesc(CustomerManagement::getCreateTime);
            
            Page<CustomerManagement> customerPage = customerManagementService.page(page, queryWrapper);
            
            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);
        }
    }
}