package com.ruoyi.web.controller.api;


import cn.hutool.http.HttpException;
import com.alibaba.fastjson2.JSONArray;
import com.alibaba.fastjson2.JSONObject;
import com.alipay.api.AlipayApiException;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.ruoyi.common.core.domain.BasePage;
import com.ruoyi.common.core.domain.R;
import com.ruoyi.common.core.redis.RedisCache;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.framework.web.service.TokenService;
import com.ruoyi.system.domain.*;
import com.ruoyi.system.dto.TVideoDto;
import com.ruoyi.system.service.*;
import com.ruoyi.system.vx.WeChatConfig;
import com.ruoyi.system.vx.WeChatUtil;
import com.ruoyi.web.controller.query.CourseQuery;
import com.ruoyi.web.controller.query.DeclareNoticeQuery;
import com.ruoyi.web.controller.query.PayDto;
import com.ruoyi.web.controller.query.VideoAddDto;
import com.ruoyi.web.controller.tool.AlipayTradePagePay;
import com.ruoyi.web.controller.tool.AlipayTradeQuery;
import com.wechat.pay.java.core.exception.MalformedMessageException;
import com.wechat.pay.java.core.exception.ServiceException;
import com.wechat.pay.java.service.partnerpayments.app.model.PrepayResponse;
import com.wechat.pay.java.service.payments.nativepay.NativePayService;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

/**
 * <p>
 * 课程列表 前端控制器
 * </p>
 *
 * @author luodangjia
 * @since 2024-09-19
 */
@RestController
@RequestMapping("/t-course")
public class TCourseController {

    @Resource
    private TCourseService courseService;
    @Resource
    private TRegionService regionService;
    @Resource
    private TTechnicalTitleService tTechnicalTitleService;
    @Resource
    private TTitleMajorService majorService;

    @Resource
    private TCoursePartService coursePartService;
    @Resource
    private TokenService tokenService;
    @Resource
    private WeChatConfig weChatConfig;
    @Resource
    private TOrderService orderService;
    @Resource
    private NativePayService nativePayService;
    @Resource
    private RedisCache redisCache;


    @ApiOperation(value = "添加",tags = "后台-教学视频管理")
    @PostMapping(value = "/add")
    public R add(@RequestBody TCourse course) {
        courseService.save(course);
        return R.ok();
    }

    @Resource
    private TCourseCommentService courseCommentService;
    @ApiOperation(value = "删除",tags = "后台-教学视频管理")
    @PostMapping(value = "/delete")
    public R delete(String ids) {
        String[] split = ids.split(",");
        List<Integer> courseIds = new ArrayList<>();
        for (String id : split) {
            courseIds.add(Integer.parseInt(id));
        }
        courseService.removeBatchByIds(courseIds);
        coursePartService.remove(Wrappers.lambdaQuery(TCoursePart.class).in(TCoursePart::getCourseId,courseIds));
        courseCommentService.remove(Wrappers.lambdaQuery(TCourseComment.class).in(TCourseComment::getCourseId,courseIds));
        return R.ok();
    }
    //编辑
    @ApiOperation(value = "编辑",tags = "后台-教学视频管理")
    @PostMapping(value = "/edit")
    public R edit(@RequestBody TCourse course) {
        courseService.updateById(course);
        return R.ok();
    }
    //列表
    @ApiOperation(value = "查询",tags = {"后台-教学视频管理","web教学视频查询"})
    @PostMapping(value = "/list")
    public R<Page<TCourse>> list(@RequestBody CourseQuery informationQuery) {
        Long userId = tokenService.getLoginUser().getUserId();
        Page<TCourse> page;
        if (informationQuery.getSortType()==1){
            page = courseService.lambdaQuery()
                    .like(!StringUtils.isEmpty(informationQuery.getName()), TCourse::getCourseName, informationQuery.getName())
                    .eq(informationQuery.getRegionId() != null, TCourse::getRegionId, informationQuery.getRegionId())
                    .eq(informationQuery.getTechnicalId() != null, TCourse::getTechnicalId, informationQuery.getTechnicalId())
                    .eq(informationQuery.getMajorId() != null, TCourse::getMajorId, informationQuery.getMajorId())
                    .eq(informationQuery.getLevel() != null, TCourse::getLevel, informationQuery.getLevel())
                    .orderByDesc(TCourse::getCreateTime)
                    .page(Page.of(informationQuery.getPageNum(), informationQuery.getPageSize()));
        }else {
            page = courseService.lambdaQuery()
                    .like(!StringUtils.isEmpty(informationQuery.getName()), TCourse::getCourseName, informationQuery.getName())
                    .eq(informationQuery.getRegionId() != null, TCourse::getRegionId, informationQuery.getRegionId())
                    .eq(informationQuery.getTechnicalId() != null, TCourse::getTechnicalId, informationQuery.getTechnicalId())
                    .eq(informationQuery.getMajorId() != null, TCourse::getMajorId, informationQuery.getMajorId())
                    .eq(informationQuery.getLevel() != null, TCourse::getLevel, informationQuery.getLevel())
                    .orderByDesc(TCourse::getCommitteeSort)
                    .page(Page.of(informationQuery.getPageNum(), informationQuery.getPageSize()));
        }

        Set<Long> cacheSet = redisCache.getCacheSet("COURSE:" + userId);

        List<TCourse> records = page.getRecords();
        List<Long> technicalId = records.stream().map(TCourse::getTechnicalId).collect(Collectors.toList());
        List<TTechnicalTitle> tTechnicalTitles = tTechnicalTitleService.lambdaQuery().in(TTechnicalTitle::getId, technicalId).list();
        List<Long> majorId = records.stream().map(TCourse::getMajorId).collect(Collectors.toList());
        List<TTitleMajor> tTitleMajors = majorService.lambdaQuery().in(TTitleMajor::getId, majorId).list();
        List<Integer> regionId = records.stream().map(TCourse::getRegionId).collect(Collectors.toList());
        List<TRegion> regions = regionService.lambdaQuery().in(TRegion::getId,regionId).list();
        List<Long> ids = records.stream().map(TCourse::getId).collect(Collectors.toList());
        List<TOrder> orders = orderService.lambdaQuery()
                .eq(TOrder::getGoodType, 1)
                .eq(TOrder::getPaymentStatus, 2)
                .in(TOrder::getGoodId, ids).list();
        for (TCourse record : records) {
            TTechnicalTitle tTechnicalTitle = tTechnicalTitles.stream().filter(e -> e.getId().equals(record.getTechnicalId())).findFirst().orElse(null);
            TTitleMajor tTitleMajor = tTitleMajors.stream().filter(e -> e.getId().equals(record.getMajorId())).findFirst().orElse(null);
            TRegion region = regions.stream().filter(e -> e.getId().equals(record.getRegionId())).findFirst().orElse(null);
            record.setRegionName(region.getProvinceName()+"-"+region.getName());
            record.setTechnicalName(tTechnicalTitle.getTitileName()+"-"+tTitleMajor.getMajorName());
            if (cacheSet!=null){
                if (cacheSet.contains(record.getId())){
                    record.setIsCollect(1);
                }else {
                    record.setIsCollect(0);
                }
            }else {
                record.setIsCollect(0);
            }

            Set<Object> cacheSet1 = redisCache.getCacheSet("STUDY:" + record.getId());
            if (cacheSet1==null){
                record.setStudyNum(0);
            }else {
                record.setStudyNum(cacheSet1.size());
            }
            int count = orders.stream().filter(e -> e.getGoodId().equals(record.getId())).collect(Collectors.toList()).size();
            record.setBuyNum(count);
        }
        return R.ok(page);
    }


    @ApiOperation(value = "其他课程推荐",tags = {"web教学视频查询"})
    @PostMapping(value = "/other")
    public R<List<TCourse>> other(@RequestParam Long id) {
        List<TCourse> list = courseService.lambdaQuery().ne(TCourse::getId, id).last("limit 3").list();
        List<Integer> regionId = list.stream().map(TCourse::getRegionId).collect(Collectors.toList());
        List<TRegion> regions = regionService.lambdaQuery().in(TRegion::getId,regionId).list();
        List<Long> technicalId = list.stream().map(TCourse::getTechnicalId).collect(Collectors.toList());
        List<TTechnicalTitle> tTechnicalTitles = tTechnicalTitleService.lambdaQuery().in(TTechnicalTitle::getId,technicalId).list();
        List<Long> majorId = list.stream().map(TCourse::getMajorId).collect(Collectors.toList());
        List<TTitleMajor> tTitleMajors = majorService.lambdaQuery().in(TTitleMajor::getId,majorId).list();
        for (TCourse record : list) {
            TRegion region = regions.stream().filter(e -> e.getId().equals(record.getRegionId())).findFirst().orElse(null);
            TTechnicalTitle tTechnicalTitle = tTechnicalTitles.stream().filter(e -> e.getId().equals(record.getTechnicalId())).findFirst().orElse(null);
            TTitleMajor tTitleMajor = tTitleMajors.stream().filter(e -> e.getId().equals(record.getMajorId())).findFirst().orElse(null);
            record.setRegionName(region.getProvinceName()+"-"+region.getName());
            record.setTechnicalName(tTechnicalTitle.getTitileName()+"-"+tTitleMajor.getMajorName());
        }
        return R.ok(list);
    }



    @ApiOperation(value = "章节管理设置",tags = "后台-教学视频管理")
    @PostMapping(value = "/video")
    public R video(@RequestBody VideoAddDto videoAddDto) {
        //先删除所有数据
        coursePartService.remove(Wrappers.lambdaQuery(TCoursePart.class).eq(TCoursePart::getCourseId, videoAddDto.getCourseId()));
        //然后一次新增
        for (TCoursePart coursePart : videoAddDto.getCourseParts()) {
            coursePart.setCourseId(videoAddDto.getCourseId());
            coursePart.setVedioJson(JSONObject.toJSONString(coursePart.getVideoDtos()));
            coursePart.setId(null);
        }
        coursePartService.saveBatch(videoAddDto.getCourseParts());
        return R.ok();
    }



    @ApiOperation(value = "获取章节列表",tags = {"后台-教学视频管理","web教学视频查询"})
    @PostMapping(value = "/detail/video")
    public R<List<TCoursePart>> video(Long courseId) {

        List<TCoursePart> list = coursePartService.lambdaQuery().eq(TCoursePart::getCourseId,courseId).orderByAsc(TCoursePart::getIndex1).list();
        for (TCoursePart tCoursePart : list) {
            tCoursePart.setVideoDtos(JSONArray.parseArray(tCoursePart.getVedioJson(), TVideoDto.class));
        }
        return R.ok(list);

    }


    @ApiOperation(value = "获取课程详情",tags = {"后台-教学视频管理","web教学视频查询"})
    @PostMapping(value = "/detail")
    public R<TCourse> detail(Long courseId) {

        TCourse record = courseService.getById(courseId);

        TRegion region = regionService.getById(record.getRegionId());
        record.setRegionName(region.getProvinceName()+"-"+region.getName());
        TTechnicalTitle technicalTitle = tTechnicalTitleService.getById(record.getTechnicalId() );
        TTitleMajor tTitleMajor = majorService.getById(record.getMajorId());
        record.setTechnicalName(technicalTitle.getTitileName()+"-"+tTitleMajor.getMajorName());


        Long userId = tokenService.getLoginUser().getUserId();
        Set<Long> cacheSet = redisCache.getCacheSet("COURSE:" + userId);
        if (cacheSet!=null){
            if (cacheSet.contains(record.getId())){
                record.setIsCollect(1);
            }else {
                record.setIsCollect(0);
            }
        }else {
            record.setIsCollect(0);
        }
        Long count = orderService.lambdaQuery().eq(TOrder::getGoodType, 1).eq(TOrder::getGoodId, courseId).eq(TOrder::getPaymentStatus,2).eq(TOrder::getUserId, userId).count();
        if (count>0){
            record.setIsPay(1);
        }else {
            record.setIsPay(0);
        }

        Set<Object> studySet = redisCache.getCacheSet("STUDY:" + courseId);
        if (studySet==null){
            record.setStudyNum(0);
        }else {
            record.setStudyNum(studySet.size());
        }

        Set<Object> collectSet = redisCache.getCacheSet("COLLECT:" + courseId);
        if (collectSet==null){
            record.setCollectNum(0);
        }else {
            record.setCollectNum(collectSet.size());
        }

        return R.ok(record);

    }

    @ApiOperation(value = "浏览课程调用",tags = {"web教学视频查询"})
    @PostMapping(value = "/view")
    public R view(Long courseId) {

        TCourse course = courseService.getById(courseId);
        course.setVisitNum(course.getVisitNum()+1);
        courseService.updateById(course);
        return R.ok();

    }

    @ApiOperation(value = "学习",tags = {"web教学视频查询"})
    @PostMapping(value = "/study")
    public R study(Long courseId) {
        Long userId = tokenService.getLoginUser().getUserId();

        Set<Long> users = new HashSet<>();
        users.add(userId);
        redisCache.setCacheSet("STUDY:" + courseId,users);
        return R.ok();

    }

    @ApiOperation(value = "生成订单",tags = {"web教学视频查询"})
    @PostMapping(value = "/create")
    public R buy( @RequestParam Long id) throws AlipayApiException {
        Long userId = tokenService.getLoginUser().getUserId();
        TCourse course = courseService.getById(id);

        String code = "KC" + WeChatUtil.generateTradeNumber();
        TOrder order = new TOrder();
        order.setCode(code);
        order.setUserId(userId);
        order.setGoodType(1);
        order.setGoodId(id);
        order.setOrderAmount(course.getCoursePrice());
        order.setPaymentAmount(course.getCoursePrice());
        if (course.getCoursePrice().compareTo(new BigDecimal(0))==0){
            order.setPaymentStatus(2);

        }
        order.setPaymentStatus(1);


        orderService.save(order);
        return R.ok(order.getId());
    }


    @ApiOperation(value = "购买",tags = {"web教学视频查询"})
    @PostMapping(value = "/buy")
    public R<PayDto> buy(@RequestParam Integer type, @RequestParam Long orderId) throws AlipayApiException {
        TOrder order = orderService.getById(orderId);
        if (type == 1) {
            com.wechat.pay.java.service.payments.nativepay.model.PrepayRequest prepayRequest = new com.wechat.pay.java.service.payments.nativepay.model.PrepayRequest();
            prepayRequest.setAppid(weChatConfig.appId);
            prepayRequest.setMchid(weChatConfig.merchantId);
            prepayRequest.setOutTradeNo(order.getCode());
            prepayRequest.setDescription("购买课程");
            prepayRequest.setNotifyUrl("https://0ifzoxq2516g.guyubao.com/call-back/buy");
            com.wechat.pay.java.service.payments.nativepay.model.Amount amount = new com.wechat.pay.java.service.payments.nativepay.model.Amount();
            amount.setTotal(order.getPaymentAmount().multiply(new BigDecimal(100)).intValue());
            prepayRequest.setAmount(amount);
            // 调用下单方法，得到应答
            PrepayResponse response;
            try {
                com.wechat.pay.java.service.payments.nativepay.model.PrepayResponse prepay = nativePayService.prepay(prepayRequest);

                PayDto payDto = new PayDto();
                payDto.setOrderId(orderId);
                payDto.setQrCode(prepay.getCodeUrl());
                return R.ok(payDto);
            } catch (HttpException e) { // 发送HTTP请求失败
//                log.error("发送HTTP请求失败: {}", e.getHttpRequest());
            } catch (ServiceException e) { // 服务返回状态小于200或大于等于300，例如500
//                log.error("服务返回状态异常: {}", e.getResponseBody());
            } catch (MalformedMessageException e) { // 服务返回成功，返回体类型不合法，或者解析返回体失败
//                log.error("返回体类型不合法: {}", e.getMessage());
            } catch (Exception e) {
//                log.error("预下单异常: {}", e.getMessage());
            }
            return null;
        } else {
            String qrCode = AlipayTradePagePay.pay("购买课程",order.getCode(),order.getPaymentAmount().toString());
            PayDto payDto = new PayDto();
            payDto.setOrderId(orderId);
            payDto.setQrCode(qrCode);
            new Thread(new Runnable() {
                @Override
                public void run() {
                    try {
                        int num = 1;
                        int wait = 0;
                        while (num <= 30) {
                            int min = 2000;
                            Thread.sleep(min);
                            Boolean check = AlipayTradeQuery.check(order.getCode());
                            if (check){
                                order.setPaymentStatus(2);
                                order.setPaymentType(2);
                                order.setPayTime(LocalDateTime.now());
                                orderService.updateById(order);

                                if (order.getGoodType()==1){
                                    try {
                                        TCourse byId1 = courseService.getById(order.getGoodId());
                                        byId1.setBuyNum(byId1.getBuyNum()+1);
                                        courseService.updateById(byId1);
                                    }catch (Exception e){
                                        e.printStackTrace();
                                    }

                                }
                            }else {
                                num++;
                            }
                        }
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }).start();
            return R.ok(payDto);
        }
    }


    @ApiOperation(value = "收藏课程",tags = {"web-个人中心"})
    @PostMapping(value = "/info/list")
    public R<Page<TCourse>> infolist(@RequestBody BasePage basePage) {

        Long userId = tokenService.getLoginUser().getUserId();
        Set<Long> cacheSet = redisCache.getCacheSet("COURSE:" + userId);


        if (!cacheSet.isEmpty()) {
            Page<TCourse> page = courseService.lambdaQuery().in(TCourse::getId, cacheSet).page(Page.of(basePage.getPageNum(), basePage.getPageSize()));
            for (TCourse record : page.getRecords()) {
                Set<Object> cacheSet1 = redisCache.getCacheSet("STUDY:" + record.getId());
                if (cacheSet1==null){
                    record.setStudyNum(0);
                }else {
                    record.setStudyNum(cacheSet1.size());
                }
            }
            return R.ok(page);
        }else {
            return R.ok(new Page<>());
        }
    }




    @ApiOperation(value = "判断当前课程是否收藏",tags = {"web-个人中心"})
    @PostMapping(value = "/collect/is")
    public R<Boolean> collectis(@RequestParam Long courseId) {

        Long userId = tokenService.getLoginUser().getUserId();
        Set<Long> cacheSet = redisCache.getCacheSet("COURSE:" + userId);
        if (cacheSet.contains(courseId)){
            return R.ok(true);
        }else {
            return R.ok(false);
        }
    }







}