364 lines
7.9 KiB
Go
364 lines
7.9 KiB
Go
package controller
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import (
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"fmt"
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"github.com/gin-gonic/gin"
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"net/http"
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"sort"
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"strconv"
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"time"
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"vote-video-api/api/dao"
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"vote-video-api/api/dto"
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"vote-video-api/api/model"
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"vote-video-api/api/requests"
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"vote-video-api/api/responses"
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"vote-video-api/api/service"
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"vote-video-api/consts"
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"vote-video-api/global"
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"vote-video-api/utils"
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)
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type Video struct{}
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// GetVideoPage 获取视频列表-分页
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func (r *Video) GetVideoPage(c *gin.Context) {
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videoRequest := requests.VideoRequest{}
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req := videoRequest.GetVideoPage
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if err := c.ShouldBind(&req); err != nil {
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responses.FailWithMessage(err.Error(), c)
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return
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}
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// 参数验证
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if err := global.Validate.Struct(req); err != nil {
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responses.FailWithMessage(utils.Translate(err), c)
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return
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}
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if req.Page == 0 {
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req.Page = 1
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}
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if req.PageSize == 0 {
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req.PageSize = 20
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}
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// 获取数据
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videoDao := dao.VideoDao{}
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videos, total, err := videoDao.GetVideoPageSearch(req, req.Page, req.PageSize)
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if err != nil {
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responses.FailWithMessage(err.Error(), c)
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return
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}
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// 处理返回值
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g := dto.GetVideoListDto(videos)
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// 检测用户今日是否投票
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userId := c.GetInt64("UserId")
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if userId != 0 {
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userService := service.UserService{}
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for _, videoDto := range g {
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videoId, err := strconv.ParseInt(videoDto.VideoId, 10, 64)
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if err != nil {
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continue
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}
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videoDto.IsVote = userService.CheckUserVoteDay(userId, videoId, 2)
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}
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}
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result := make(map[string]interface{})
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result["page"] = req.Page
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result["page_size"] = req.PageSize
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result["total"] = total
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result["data"] = g
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responses.OkWithData(result, c)
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}
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// GetVideo 获取视频详情
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func (r *Video) GetVideo(c *gin.Context) {
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id := c.Param("video_id")
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if id == "" {
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responses.FailWithMessage("缺少参数", c)
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return
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}
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// 将 id 转换为 int64 类型
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videoId, err := strconv.ParseInt(id, 10, 64)
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if err != nil {
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responses.Fail(c)
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return
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}
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// 获取数据
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videoDao := dao.VideoDao{}
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video, err := videoDao.GetVideoById(videoId)
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if err != nil {
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responses.FailWithMessage("文章错误", c)
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return
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}
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// 获取视频作者
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videoAuthorDao := dao.VideoAuthorDao{}
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videoAuthors, err := videoAuthorDao.GetVideoAuthorListPreloadByVideoId(videoId)
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if err != nil {
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responses.FailWithMessage("文章错误", c)
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return
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}
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video.VideoAuthor = videoAuthors
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// 处理返回值
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g := dto.GetVideoDto(video)
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// 获取排名开关限制
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systemConfigDao := dao.SystemConfigDao{}
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systemConfig, err := systemConfigDao.GetSystemConfigById(1)
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if err != nil {
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responses.OkWithData(nil, c)
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return
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}
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if systemConfig.IsDisplayRank == 1 {
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// 获取大于某一投票数的文章
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maps := make(map[string]interface{})
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maps["video_status"] = 1
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videos, err := videoDao.GetVideoListGtVoteNum(maps, video.VoteNum)
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if err == nil {
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rank := len(videos) + 1
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// 加载数据-作者排名
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g.LoadRank(rank)
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}
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}
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// 加载数据-作者
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g.LoadVideoAuthor(video.VideoAuthor)
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// 检测用户今日是否投票
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userId := c.GetInt64("UserId")
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if userId != 0 {
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userService := service.UserService{}
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isVote := userService.CheckUserVoteDay(userId, videoId, 2)
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// 加载数据-投票状态
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g.LoadVoteStatus(isVote)
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}
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responses.OkWithData(g, c)
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}
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// GetVideoRankList 获取视频排名列表
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func (r *Video) GetVideoRankList(c *gin.Context) {
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// 获取排名开关限制
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systemConfigDao := dao.SystemConfigDao{}
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systemConfig, err := systemConfigDao.GetSystemConfigById(1)
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if err != nil {
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responses.OkWithData(nil, c)
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return
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}
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if systemConfig.IsDisplayRank == 0 {
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responses.OkWithData(nil, c)
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return
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}
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// 获取数据
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videoDao := dao.VideoDao{}
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maps := make(map[string]interface{})
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maps["video_status"] = 1
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videos, err := videoDao.GetVideoRankList(maps, "vote_num desc", 15)
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if err != nil {
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responses.OkWithData(nil, c)
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return
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}
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// 处理数据
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for i, video := range videos {
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// 判断最后两位票数是否相同
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if i == 14 {
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maps = make(map[string]interface{})
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maps["video_status"] = 1
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maps["vote_num"] = video.VoteNum
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results, err := videoDao.GetVideoList(maps)
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if err != nil {
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responses.OkWithData(nil, c)
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return
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}
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for _, result := range results {
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if result.VideoId == video.VideoId {
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continue
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}
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videos = append(videos, result)
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}
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}
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}
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// 处理返回值
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g := dto.GetVideoListDto(videos)
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// 检测用户今日是否投票
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userId := c.GetInt64("UserId")
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if userId != 0 {
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userService := service.UserService{}
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for _, videoDto := range g {
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videoId, err := strconv.ParseInt(videoDto.VideoId, 10, 64)
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if err != nil {
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continue
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}
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videoDto.IsVote = userService.CheckUserVoteDay(userId, videoId, 2)
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}
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}
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// 根据 VoteNum 降序排序
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sort.SliceStable(g, func(i, j int) bool {
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return g[i].VoteNum > g[j].VoteNum
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})
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// 计算排名
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var currentRank int
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for k, v := range g {
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if k == 0 {
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// 第一个元素，排名设为1
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currentRank = 1
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} else if g[k].VoteNum < g[k-1].VoteNum {
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currentRank = k + 1
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}
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// 为当前元素设置 Rank
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rank := currentRank // 创建一个新的变量来保存排名
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v.Rank = &rank // 将新的变量的地址赋给 Rank
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}
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responses.OkWithData(g, c)
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}
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// AddVideoVote 视频投票
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func (r *Video) AddVideoVote(c *gin.Context) {
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id := c.Param("video_id")
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if id == "" {
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responses.FailWithMessage("缺少参数", c)
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return
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}
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// 将 id 转换为 int64 类型
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videoId, err := strconv.ParseInt(id, 10, 64)
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if err != nil {
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responses.Fail(c)
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return
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}
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userId := c.GetInt64("UserId")
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if userId == 0 {
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c.JSON(http.StatusUnauthorized, gin.H{
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"message": "请登录后投票",
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"code": consts.TokenError,
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"data": "",
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})
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return
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}
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// 检测并发请求
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redisKey := "AddVideoVote" + fmt.Sprintf("%d", userId) + fmt.Sprintf("%d", videoId)
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res, _ := global.Redis.Get(c, redisKey).Result()
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if res != "" {
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responses.FailWithMessage("请勿重复操作", c)
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return
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}
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defer func(redisKey string) {
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global.Redis.Del(c, redisKey)
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}(redisKey)
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// 添加缓存
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_, err = global.Redis.Set(c, redisKey, "1", (1)*time.Second).Result()
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if err != nil {
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responses.FailWithMessage("投票失败", c)
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return
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}
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// 获取数据
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videoDao := dao.VideoDao{}
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video, err := videoDao.GetVideoById(videoId)
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if err != nil || video == nil {
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responses.FailWithMessage("非法数据", c)
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return
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}
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// 检测投票有效期
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systemTimeService := service.SystemTimeService{}
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isValid := systemTimeService.CheckVoteValidStatus()
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if isValid == false {
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responses.FailWithMessage("投票已结束", c)
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return
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}
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// 检测用户今日是否投票
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userService := service.UserService{}
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isVote := userService.CheckUserVoteDay(userId, videoId, 2)
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if isVote == true {
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responses.FailWithMessage("请勿重复投票", c)
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return
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}
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// 开始事务
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tx := global.Db.Begin()
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defer func() {
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if r := recover(); r != nil {
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tx.Rollback()
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utils.LogJsonErr("投票失败", r)
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responses.FailWithMessage("投票失败", c)
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return
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}
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}()
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// 增加投票数
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err = videoDao.Inc(tx, videoId, "vote_num", 1)
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if err != nil {
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tx.Rollback()
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responses.FailWithMessage("投票失败", c)
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return
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}
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// 增加投票记录
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nowDay, _ := time.Parse("2006-01-02", time.Now().Format("2006-01-02"))
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votedAt := model.LocalTime(nowDay)
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videoVoteDay := &model.VideoVoteDay{
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VideoId: videoId,
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UserId: userId,
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VotedAt: &votedAt,
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}
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videoVoteDayDao := dao.VideoVoteDayDao{}
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videoVoteDay, err = videoVoteDayDao.AddVideoVoteDay(tx, videoVoteDay)
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if err != nil {
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tx.Rollback()
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responses.FailWithMessage("投票失败", c)
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return
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}
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// 增加数据表-投票数量
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dataDao := dao.DataDao{}
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err = dataDao.Inc(tx, 1, "vote_num", 1)
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if err != nil {
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tx.Rollback()
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responses.FailWithMessage("投票失败", c)
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return
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}
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// 新增投票缓存
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result := userService.AddUserVoteDayCache(userId, videoId, 2)
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if result == false {
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tx.Rollback()
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responses.FailWithMessage("投票失败", c)
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return
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}
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tx.Commit()
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responses.Ok(c)
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}
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