package com.peanut.modules.book.controller;

import java.io.IOException;
import java.text.Collator;
import java.util.*;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import org.apache.shiro.authz.annotation.RequiresPermissions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.peanut.modules.book.entity.BookChapterEntity;
import com.peanut.modules.book.service.BookChapterService;
import com.peanut.common.utils.PageUtils;
import com.peanut.common.utils.R;
import org.springframework.web.multipart.MultipartFile;


/**
 * 
 *
 * @author yl
 * @email yl328572838@163.com
 * @date 2022-08-12 09:53:25
 */
@RestController
@RequestMapping("book/bookchapter")
public class BookChapterController {
    @Autowired
    private BookChapterService bookChapterService;

    /**
     * 列表
     */
    @RequestMapping("/list")
    public R list(@RequestParam Map<String, Object> params){
        PageUtils page = bookChapterService.queryPage(params);

        return R.ok().put("page", page);
    }



    @RequestMapping("/booklist")
    public R booklist(@RequestParam Map<String, Object> params){
        PageUtils page = bookChapterService.queryPage1(params);

        return R.ok().put("page", page);
    }


    /**
     * 信息
     */
    @RequestMapping("/info/{id}")
    public R info(@PathVariable("id") Integer id){
		BookChapterEntity bookChapter = bookChapterService.getById(id);

        return R.ok().put("bookChapter", bookChapter);
    }







    /**
     * 保存
     */
    @RequestMapping("/save")
    public R save(@RequestBody BookChapterEntity bookChapter) {
        BookChapterEntity bookChapterEntity = new BookChapterEntity();
        Integer number = bookChapter.getNumber();
        Integer bookId = bookChapter.getBookId();
        if (number == 0) {
            return R.error("章节号不可为0，请输入正确章节号");
        }

        List<BookChapterEntity> bookChapterEntities = this.bookChapterService.getBaseMapper().selectList(new QueryWrapper<BookChapterEntity>()
                .eq("book_id", bookId)
                .ge("number", number));
        for(BookChapterEntity entity: bookChapterEntities){
            entity.setNumber(entity.getNumber() + 1);
            this.bookChapterService.updateById(entity);
        }
        bookChapterService.save(bookChapter);
         return R.ok();
    }











    /**
     * 修改
     */
    @RequestMapping("/contentupdate")
    public R contentupdate(@RequestBody BookChapterEntity bookChapter) {
        Integer id = bookChapter.getId();
        String content = bookChapter.getContent();
        Integer number = bookChapter.getNumber();
        Integer bookId = bookChapter.getBookId();

        BookChapterEntity byId = bookChapterService.getById(id);
        String content1 = byId.getContent();
        if (content.equals(content1)) {

        } else {
            // 如果content字段和原来数据库的content内容不同则voices字段为空
            bookChapter.setVoices(""); // 设置voices字段为空

        }

        List<BookChapterEntity> bookChapterEntities = this.bookChapterService.getBaseMapper().selectList(new QueryWrapper<BookChapterEntity>()
                .eq("book_id", bookId)
                .ge("number", number));
        for(BookChapterEntity entity: bookChapterEntities){
            entity.setNumber(entity.getNumber() + 1);
            this.bookChapterService.updateById(entity);
        }



        bookChapterService.updateById(bookChapter); // 更新对象的属性
        return R.ok();

    }

    /**
     * 修改
     */
    @RequestMapping("/update")
    public R update(@RequestBody BookChapterEntity bookChapter) {
        Integer id = bookChapter.getId();
        String content = bookChapter.getContent();
        Integer number = bookChapter.getNumber();
        Integer bookId = bookChapter.getBookId();

        BookChapterEntity byId = bookChapterService.getById(id);
        String content1 = byId.getContent();
        if (content.equals(content1)) {

        } else {
            // 如果content字段和原来数据库的content内容不同则voices字段为空
            bookChapter.setVoices(""); // 设置voices字段为空

        }

        List<BookChapterEntity> bookChapterEntities = this.bookChapterService.getBaseMapper().selectList(new QueryWrapper<BookChapterEntity>()
                .eq("book_id", bookId)
                .ge("number", number));
        System.out.println("bookChapterEntitiesbookChapterEntitiesbookChapterEntities"+bookChapterEntities);

        BookChapterEntity bookChapterEntity = null;
        for (BookChapterEntity entity : bookChapterEntities) {
            if (entity.getNumber() == number) {
                bookChapterEntity = entity;
                break;
            }
        }
//        if (bookChapterEntity != null) {
//            bookChapterEntity.setNumber(1); // 设置新的章节编号为1
//            bookChapterService.updateById(bookChapterEntity); // 更新章节编号为1的章节
//        }

        List<BookChapterEntity> bookChapterEntitiesCopy = new ArrayList<>(bookChapterEntities); // 复制章节列表
        Collections.sort(bookChapterEntitiesCopy, new Comparator<BookChapterEntity>() {
            @Override
            public int compare(BookChapterEntity o1, BookChapterEntity o2) {
                return o1.getNumber() - o2.getNumber(); // 根据章节编号进行排序
            }
        });


//        bookChapterService.updateById(bookChapter);
//        List<BookChapterEntity> bookChapterEntities = this.bookChapterService.getBaseMapper().selectList(new QueryWrapper<BookChapterEntity>()
//                .eq("book_id", bookId)
//                .ge("number", number));
//
//        for(BookChapterEntity entity: bookChapterEntities){
//            if (bookChapter.getNumber()>=) {
//            }
//            entity.setNumber(entity.getNumber() - 1);
//
//            bookChapterService.updateById(entity);
//        }
//        List<BookChapterEntity> tempEntity = this.bookChapterService.getBaseMapper().selectList(new QueryWrapper<BookChapterEntity>()
//                .eq("book_id", bookChapter.getBookId()).orderByAsc("number")
//        );
//        int index = 0;
//        for(BookChapterEntity entity: tempEntity){
//            index ++;
//            entity.setNumber(index);
//            this.bookChapterService.updateById(entity);
//        }
//

        return R.ok();

    }





    public static List<BookChapterEntity> sort(List<BookChapterEntity> list){
        //根据指定比较器产生的顺序对指定列表进行排序。
        Collections.sort(list, new Comparator<BookChapterEntity>() {
            @Override
            public int compare(BookChapterEntity o1, BookChapterEntity o2) {
                //获取所需语言环境的 Collator，根据所需切换其他语言环境
                //Collator collator = Collator.getInstance(Locale.ENGLISH);
                //return collator.compare(o1.getAddress(), o2.getAddress());
                Collator collator = Collator.getInstance(Locale.CANADA);
                return collator.compare(o1.getNumber(), o2.getNumber());
            }
        });
        return list;
    }

    /**
     *  优化删除，暂时报错未修改
     */
    //TODO  优化删除，暂时报错未修改
    @RequestMapping("/deletess")
    public R deletess(@RequestBody Integer[] ids){

        for(Integer id : ids){

            BookChapterEntity chapter = bookChapterService.getBaseMapper().selectOne(new QueryWrapper<BookChapterEntity>()
                    .eq("id", id)
            );

            List<BookChapterEntity> bookChapterEntities = this.bookChapterService.getBaseMapper().selectList(new QueryWrapper<BookChapterEntity>()
                    .eq("book_id", chapter.getBookId())
                    .gt("number", chapter.getNumber()));
            this.bookChapterService.removeById(id);
            for(BookChapterEntity entity: bookChapterEntities){
                entity.setNumber(entity.getNumber() - 1);

            }

            List<BookChapterEntity> bookChapterEntities2 = sort(bookChapterEntities);
            List<BookChapterEntity> tempEntity = this.bookChapterService.getBaseMapper().selectList(new QueryWrapper<BookChapterEntity>()
                    .eq("book_id", chapter.getBookId()).orderByAsc("number")
                    );
            int index = tempEntity.size() - bookChapterEntities.size();
            for(BookChapterEntity entity: bookChapterEntities2){
                index ++;
                entity.setNumber(index);
                this.bookChapterService.updateById(entity);
            }
        }

        return R.ok();
    }





    /**
     * 删除
     */
    @RequestMapping("/delete")
    public R delete(@RequestBody Integer[] ids) {
        for(Integer id : ids){


            
            BookChapterEntity chapter = bookChapterService.getBaseMapper().selectOne(new QueryWrapper<BookChapterEntity>()
                    .eq("id", id)
            );
            List<BookChapterEntity> bookChapterEntities = this.bookChapterService.getBaseMapper().selectList(new QueryWrapper<BookChapterEntity>()
                    .eq("book_id", chapter.getBookId())
                    .gt("number", chapter.getNumber()));
            this.bookChapterService.removeById(id);
            for(BookChapterEntity entity: bookChapterEntities){
                entity.setNumber(entity.getNumber() - 1);
                this.bookChapterService.updateById(entity);
            }
            List<BookChapterEntity> tempEntity = this.bookChapterService.getBaseMapper().selectList(new QueryWrapper<BookChapterEntity>()
                    .eq("book_id", chapter.getBookId()).orderByAsc("number")
            );
            int index = 0;
            for(BookChapterEntity entity: tempEntity){
                index ++;
                entity.setNumber(index);
                this.bookChapterService.updateById(entity);
            }
        }


        return R.ok();
    }

    }