package com.xinquan.course.controller.client;


import com.alibaba.nacos.common.utils.StringUtils;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.xinquan.common.core.constant.SecurityConstants;
import com.xinquan.common.core.domain.R;
import com.xinquan.common.core.utils.page.BeanUtils;
import com.xinquan.common.core.utils.page.CollUtils;
import com.xinquan.common.core.utils.page.PageDTO;
import com.xinquan.course.api.domain.Course;
import com.xinquan.course.domain.CourseChapter;
import com.xinquan.course.domain.vo.ClientCourseCategoryVO;
import com.xinquan.course.domain.vo.ClientCourseVO;
import com.xinquan.course.service.CourseCategoryService;
import com.xinquan.course.service.CourseChapterService;
import com.xinquan.course.service.CourseService;
import com.xinquan.system.api.RemoteBannerService;
import com.xinquan.system.api.domain.vo.BannerVO;
import com.xinquan.user.api.feign.RemoteAppUserService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import java.util.List;
import java.util.Objects;

import io.swagger.models.auth.In;
import lombok.RequiredArgsConstructor;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

/**
 * <p>
 * 线上课程表 前端控制器
 * </p>
 *
 * @author mitao
 * @since 2024-08-21
 */
@Api(tags = {"用户端-课程相关接口"})
@RestController
@RequiredArgsConstructor
@RequestMapping("/client/course/course")
public class ClientCourseController {

    private final CourseCategoryService courseCategoryService;
    private final CourseService courseService;
    private final RemoteBannerService remoteBannerService;
    private final RemoteAppUserService appUserService;
    @Resource
    private CourseChapterService courseChapterService;

    /**
     * 获取轮播图列表
     *
     * @return 轮播图列表
     */
    @GetMapping("/getBannerList")
    @ApiOperation(value = "获取轮播图列表")
    public R<List<BannerVO>> getBannerList() {
        return remoteBannerService.getBannerList(SecurityConstants.INNER);
    }

    /**
     * 获取课程分类列表
     *
     * @return 课程分类列表
     */
    @GetMapping("/getCourseCategoryList")
    @ApiOperation(value = "获取课程分类列表")
    public R<List<ClientCourseCategoryVO>> getCourseCategoryList() {
        return R.ok(courseCategoryService.getCourseCategoryList());
    }
    /**
     * 课程详情
     *
     * @return 课程详情
     */
    @GetMapping("/getCourseInfoById")
    @ApiOperation(value = "根据id获取课程详情-线下课程")
    public R<Course> getCourseInfoById(String id) {
        return R.ok(courseService.getById(id));
    }
    /**
     * 课程详情
     *
     * @return 课程详情
     */
    @GetMapping("/getPayCourseInfoById")
    @ApiOperation(value = "根据id获取课程详情-付费课程")
    @ApiImplicitParams({
            @ApiImplicitParam(value = "课程id", name = "id", required = true, dataType = "String"),
            @ApiImplicitParam(value = "分页参数，当前页码", name = "pageCurr", required = true, dataType = "Integer"),
            @ApiImplicitParam(value = "分页参数，每页数量", name = "pageSize", required = true, dataType = "Integer")
    })
    public R<ClientCourseVO> getPayCourseInfoById(@RequestParam(value = "id")Long id,
                                                  @RequestParam(value = "pageCurr", defaultValue = "1") Integer pageCurr,
                                                  @RequestParam(value = "pageSize", defaultValue = "10") Integer pageSize) {
        Course byId = courseService.getById(id);
        ClientCourseVO clientCourseVO = new ClientCourseVO();
        BeanUtils.copyProperties(byId, clientCourseVO);
        // 查询章节
        Page<CourseChapter> page = courseChapterService.lambdaQuery()
                .eq(CourseChapter::getCourseId, id)
                .orderByDesc(CourseChapter::getSortNum)
                .page(new Page<>(pageCurr, pageSize));
        if (CollUtils.isEmpty(page.getRecords())) {
            PageDTO<CourseChapter> empty = PageDTO.empty(page);
            clientCourseVO.setList(empty);
        }
        // 查询学习人数和头像列表
        List<String> data = appUserService.getUserByCourseId(id).getData();
        if (data!=null){
            clientCourseVO.setCount(data.size());
        }
        clientCourseVO.setHeaders(data);
        // 查询推荐课程

        return R.ok(clientCourseVO);
    }

    /**
     * 获取课程列表-分页
     *
     * @param courseTitle 课程标题
     * @param cateId      分类id
     * @param pageCurr    分页参数，当前页码
     * @param pageSize    分页参数，每页数量
     * @return 课程分页列表
     */
    @PostMapping("/getCoursePageList")
    @ApiOperation(value = "获取课程列表-分页")
    @ApiImplicitParams({
            @ApiImplicitParam(value = "课程标题", name = "courseTitle", required = false, dataType = "String"),
            @ApiImplicitParam(value = "课程分类id", name = "cateId", required = false, dataType = "Long"),
            @ApiImplicitParam(value = "分页参数，当前页码", name = "pageCurr", required = true, dataType = "Integer"),
            @ApiImplicitParam(value = "分页参数，每页数量", name = "pageSize", required = true, dataType = "Integer")
    })
    public R<PageDTO<ClientCourseVO>> getCourseList(
            @RequestParam(defaultValue = "", value = "courseTitle", required = false) String courseTitle,
            @RequestParam(required = false) Long cateId,
            @RequestParam(value = "pageCurr", defaultValue = "1") Integer pageCurr,
            @RequestParam(value = "pageSize", defaultValue = "10") Integer pageSize) {
        return R.ok(courseService.getCoursePageList(courseTitle, cateId, pageCurr, pageSize));
    }
}