content: package com.itheima.reggie.controller;
  
  import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
  import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
  import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
  import com.itheima.reggie.common.BaseContext;
  import com.itheima.reggie.common.R;
  import com.itheima.reggie.entity.AddressBook;
  import com.itheima.reggie.service.AddressBookService;
  import lombok.extern.slf4j.Slf4j;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.util.CollectionUtils;
  import org.springframework.web.bind.annotation.*;
  
  import java.util.List;
  
  /**
   * 地址簿管理
   */
  @Slf4j
  @RestController
  @RequestMapping("/addressBook")
  public class AddressBookController {
  
      @Autowired
      private AddressBookService addressBookService;
  
      /**
       * 新增
       */
      @PostMapping
      public R<AddressBook> save(@RequestBody AddressBook addressBook) {
          addressBook.setUserId(BaseContext.getCurrentId());
          log.info("addressBook:{}", addressBook);
          addressBookService.save(addressBook);
          return R.success(addressBook);
      }
  
      /**
       * 设置默认地址
       */
      @PutMapping("default")
      public R<AddressBook> setDefault(@RequestBody AddressBook addressBook) {
          log.info("addressBook:{}", addressBook);
          LambdaUpdateWrapper<AddressBook> wrapper = new LambdaUpdateWrapper<>();
          wrapper.eq(AddressBook::getUserId, BaseContext.getCurrentId());
          wrapper.set(AddressBook::getIsDefault, 0);
          //SQL:update address_book set is_default = 0 where user_id = ?
          addressBookService.update(wrapper);
  
          addressBook.setIsDefault(1);
          //SQL:update address_book set is_default = 1 where id = ?
          addressBookService.updateById(addressBook);
          return R.success(addressBook);
      }
  
      /**
       * 根据id查询地址
       */
      @GetMapping("/{id}")
      public R get(@PathVariable Long id) {
          AddressBook addressBook = addressBookService.getById(id);
          if (addressBook != null) {
              return R.success(addressBook);
          } else {
              return R.error("没有找到该对象");
          }
      }
  
      /**
       * 查询默认地址
       */
      @GetMapping("default")
      public R<AddressBook> getDefault() {
          LambdaQueryWrapper<AddressBook> queryWrapper = new LambdaQueryWrapper<>();
          queryWrapper.eq(AddressBook::getUserId, BaseContext.getCurrentId());
          queryWrapper.eq(AddressBook::getIsDefault, 1);
  
          //SQL:select * from address_book where user_id = ? and is_default = 1
          AddressBook addressBook = addressBookService.getOne(queryWrapper);
  
          if (null == addressBook) {
              return R.error("没有找到该对象");
          } else {
              return R.success(addressBook);
          }
      }
  
      /**
       * 查询指定用户的全部地址
       */
      @GetMapping("/list")
      public R<List<AddressBook>> list(AddressBook addressBook) {
          addressBook.setUserId(BaseContext.getCurrentId());
          log.info("addressBook:{}", addressBook);
  
          //条件构造器
          LambdaQueryWrapper<AddressBook> queryWrapper = new LambdaQueryWrapper<>();
          queryWrapper.eq(null != addressBook.getUserId(), AddressBook::getUserId, addressBook.getUserId());
          queryWrapper.orderByDesc(AddressBook::getUpdateTime);
  
          //SQL:select * from address_book where user_id = ? order by update_time desc
          return R.success(addressBookService.list(queryWrapper));
      }
  
      /**
       * 删除地址的方法
       *
       * @param ids
       * @return
       */
      @DeleteMapping
      public R<String> delete(@RequestParam Long ids) {
          log.info("ids = {}", ids);
          LambdaQueryWrapper<AddressBook> lambdaQueryWrapper = new LambdaQueryWrapper<>();
          lambdaQueryWrapper.eq(AddressBook::getId, ids);
          addressBookService.remove(lambdaQueryWrapper);
          return R.success("地址删除成功");
      }
  
      /**
       * 修改地址的方法
       *
       * @param addressBook
       * @return
       */
      @PutMapping
      public R<String> update(@RequestBody AddressBook addressBook) {
          log.info("addressBook={}", addressBook);
          LambdaQueryWrapper<AddressBook> lambdaQueryWrapper = new LambdaQueryWrapper<>();
          lambdaQueryWrapper.eq(AddressBook::getId, addressBook.getId());
          addressBookService.remove(lambdaQueryWrapper);
          addressBookService.save(addressBook);
          return R.success("地址修改成功");
      }
  }