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// Copyright 2022 ROC. All rights reserved.
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// Use of this source code is governed by a MIT style
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// license that can be found in the LICENSE file.
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package jinzhu
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import (
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"errors"
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"strings"
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"github.com/rocboss/paopao-ce/internal/core"
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"github.com/rocboss/paopao-ce/internal/core/cs"
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"github.com/rocboss/paopao-ce/internal/dao/jinzhu/dbr"
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"gorm.io/gorm"
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)
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var (
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_ core.TopicService = (*topicSrv)(nil)
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_ core.TopicServantA = (*topicSrvA)(nil)
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)
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type topicSrv struct {
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db *gorm.DB
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tnTopicUser string
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tnDotTopicUser string
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}
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type topicSrvA struct {
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db *gorm.DB
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}
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type topicInfo struct {
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TopicId int64
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IsTop int8
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}
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func newTopicService(db *gorm.DB) core.TopicService {
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return &topicSrv{
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db: db,
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tnTopicUser: db.NamingStrategy.TableName("TopicUser"),
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tnDotTopicUser: db.NamingStrategy.TableName("TopicUser") + ".",
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}
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}
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func newTopicServantA(db *gorm.DB) core.TopicServantA {
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return &topicSrvA{
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db: db,
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}
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}
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func (s *topicSrv) UpsertTags(userId int64, tags []string) (_ cs.TagInfoList, err error) {
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db := s.db.Begin()
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defer func() {
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if err == nil {
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db.Commit()
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} else {
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db.Rollback()
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}
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}()
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return createTags(db, userId, tags)
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}
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func (s *topicSrv) DecrTagsById(ids []int64) (err error) {
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db := s.db.Begin()
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defer func() {
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if err == nil {
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db.Commit()
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} else {
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db.Rollback()
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}
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}()
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return decrTagsByIds(db, ids)
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}
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func (s *topicSrv) ListTags(typ cs.TagType, offset, limit int) (res cs.TagList, err error) {
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conditions := &core.ConditionsT{}
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switch typ {
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case cs.TagTypeHot:
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// 热门标签
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conditions = &core.ConditionsT{
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"ORDER": "quote_num DESC",
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}
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case cs.TagTypeNew:
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// 最新标签
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conditions = &core.ConditionsT{
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"ORDER": "id DESC",
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}
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}
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return s.listTags(conditions, limit, offset)
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}
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func (s *topicSrv) GetHotTags(userId int64, limit int, offset int) (cs.TagList, error) {
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tags, err := s.listTags(&core.ConditionsT{
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"ORDER": "quote_num DESC",
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}, limit, offset)
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if err != nil {
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return nil, err
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}
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return s.tagsFormatA(userId, tags)
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}
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func (s *topicSrv) GetNewestTags(userId int64, limit int, offset int) (cs.TagList, error) {
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tags, err := s.listTags(&core.ConditionsT{
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"ORDER": "id DESC",
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}, limit, offset)
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if err != nil {
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return nil, err
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}
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return s.tagsFormatA(userId, tags)
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}
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func (s *topicSrv) GetFollowTags(userId int64, limit int, offset int) (cs.TagList, error) {
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if userId < 0 {
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return nil, nil
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}
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userTopics := []*topicInfo{}
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err := s.db.Model(&dbr.TopicUser{}).
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Where("user_id=?", userId).
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Order("is_top DESC").
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Limit(limit).
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Offset(offset).
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Find(&userTopics).Error
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if err != nil {
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return nil, err
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}
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userTopicsMap := make(map[int64]*topicInfo, len(userTopics))
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topicIds := make([]int64, 0, len(userTopics))
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topicIdsMap := make(map[int64]int, len(userTopics))
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for idx, info := range userTopics {
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userTopicsMap[info.TopicId] = info
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topicIds = append(topicIds, info.TopicId)
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topicIdsMap[info.TopicId] = idx
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}
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var tags cs.TagInfoList
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err = s.db.Model(&dbr.Tag{}).Where("quote_num > 0 and id in ?", topicIds).Order("quote_num DESC").Find(&tags).Error
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if err != nil {
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return nil, err
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}
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formtedTags, err := s.tagsFormatB(userTopicsMap, tags)
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if err != nil {
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return nil, err
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}
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// 置顶排序后处理
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// TODO: 垃圾办法，最好是topic_user join tag 一次查询，但是gorm的join真他喵的别扭，F*K
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res := make(cs.TagList, len(topicIds), len(topicIds))
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for _, tag := range formtedTags {
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res[topicIdsMap[tag.ID]] = tag
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}
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return res, nil
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}
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func (s *topicSrv) listTags(conditions *core.ConditionsT, limit int, offset int) (res cs.TagList, err error) {
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// TODO: 优化查询方式，直接返回[]*core.Tag, 目前保持先转换一下
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var (
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tags []*dbr.Tag
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item *cs.TagItem
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)
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if tags, err = (&dbr.Tag{}).List(s.db, conditions, offset, limit); err == nil {
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if len(tags) == 0 {
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return
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}
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tagMap := make(map[int64][]*cs.TagItem, len(tags))
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for _, tag := range tags {
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item = &cs.TagItem{
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ID: tag.ID,
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UserID: tag.UserID,
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Tag: tag.Tag,
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QuoteNum: tag.QuoteNum,
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}
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tagMap[item.UserID] = append(tagMap[item.UserID], item)
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res = append(res, item)
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}
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ids := make([]int64, len(tagMap))
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for userId := range tagMap {
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ids = append(ids, userId)
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}
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userInfos, err := (&dbr.User{}).ListUserInfoById(s.db, ids)
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if err != nil {
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return nil, err
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}
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for _, userInfo := range userInfos {
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for _, item = range tagMap[userInfo.ID] {
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item.User = userInfo
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}
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}
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}
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return
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}
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func (s *topicSrv) tagsFormatA(userId int64, tags cs.TagList) (cs.TagList, error) {
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// 获取创建者User IDs
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tagIds := []int64{}
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for _, tag := range tags {
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tagIds = append(tagIds, tag.ID)
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}
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// 填充话题follow信息
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if userId > -1 {
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userTopics := []*topicInfo{}
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err := s.db.Model(&dbr.TopicUser{}).Where("is_del=0 and user_id=? and topic_id in ?", userId, tagIds).Find(&userTopics).Error
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if err != nil {
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return nil, err
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}
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userTopicsMap := make(map[int64]*topicInfo, len(userTopics))
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for _, info := range userTopics {
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userTopicsMap[info.TopicId] = info
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}
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for _, tag := range tags {
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if info, exist := userTopicsMap[tag.ID]; exist {
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tag.IsFollowing, tag.IsTop = 1, info.IsTop
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}
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}
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}
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return tags, nil
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}
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func (s *topicSrv) tagsFormatB(userTopicsMap map[int64]*topicInfo, tags cs.TagInfoList) (cs.TagList, error) {
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// 获取创建者User IDs
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userIds := []int64{}
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tagIds := []int64{}
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for _, tag := range tags {
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userIds = append(userIds, tag.UserID)
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tagIds = append(tagIds, tag.ID)
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}
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users, err := (&dbr.User{}).ListUserInfoById(s.db, userIds)
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if err != nil {
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return nil, err
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}
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tagList := cs.TagList{}
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for _, tag := range tags {
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tagFormated := tag.Format()
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for _, user := range users {
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if user.ID == tagFormated.UserID {
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tagFormated.User = user
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}
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}
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tagList = append(tagList, tagFormated)
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}
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// 填充话题follow信息
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if len(userTopicsMap) > 0 {
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for _, tag := range tagList {
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if info, exist := userTopicsMap[tag.ID]; exist {
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tag.IsFollowing, tag.IsTop = 1, info.IsTop
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}
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}
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}
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return tagList, nil
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}
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func (s *topicSrv) TagsByKeyword(keyword string) (res cs.TagInfoList, err error) {
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keyword = "%" + strings.Trim(keyword, " ") + "%"
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tag := &dbr.Tag{}
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var tags []*dbr.Tag
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if keyword == "%%" {
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tags, err = tag.List(s.db, &dbr.ConditionsT{
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"ORDER": "quote_num DESC",
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}, 0, 6)
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} else {
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tags, err = tag.List(s.db, &dbr.ConditionsT{
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"tag LIKE ?": keyword,
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"ORDER": "quote_num DESC",
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}, 0, 6)
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}
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if err == nil {
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for _, tag := range tags {
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res = append(res, &cs.TagInfo{
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ID: tag.ID,
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UserID: tag.UserID,
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Tag: tag.Tag,
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QuoteNum: tag.QuoteNum,
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})
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}
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}
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return
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}
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func (s *topicSrvA) UpsertTags(userId int64, tags []string) (_ cs.TagInfoList, err error) {
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db := s.db.Begin()
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defer func() {
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if err == nil {
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db.Commit()
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} else {
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db.Rollback()
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}
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}()
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return createTags(db, userId, tags)
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}
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func (s *topicSrvA) DecrTagsById(ids []int64) (err error) {
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db := s.db.Begin()
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defer func() {
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if err == nil {
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db.Commit()
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} else {
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db.Rollback()
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}
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}()
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return decrTagsByIds(db, ids)
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}
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func (s *topicSrvA) ListTags(typ cs.TagType, offset, limit int) (res cs.TagList, err error) {
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conditions := &core.ConditionsT{}
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switch typ {
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case cs.TagTypeHot:
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// 热门标签
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conditions = &core.ConditionsT{
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"ORDER": "quote_num DESC",
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}
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case cs.TagTypeNew:
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// 最新标签
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conditions = &core.ConditionsT{
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"ORDER": "id DESC",
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}
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}
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// TODO: 优化查询方式，直接返回[]*core.Tag, 目前保持先转换一下
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var (
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tags []*dbr.Tag
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item *cs.TagItem
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)
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if tags, err = (&dbr.Tag{}).List(s.db, conditions, offset, limit); err == nil {
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if len(tags) == 0 {
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return
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}
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tagMap := make(map[int64][]*cs.TagItem, len(tags))
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for _, tag := range tags {
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item = &cs.TagItem{
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ID: tag.ID,
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UserID: tag.UserID,
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Tag: tag.Tag,
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QuoteNum: tag.QuoteNum,
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}
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tagMap[item.UserID] = append(tagMap[item.UserID], item)
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res = append(res, item)
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}
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ids := make([]int64, len(tagMap))
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for userId := range tagMap {
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ids = append(ids, userId)
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}
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userInfos, err := (&dbr.User{}).ListUserInfoById(s.db, ids)
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if err != nil {
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return nil, err
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}
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for _, userInfo := range userInfos {
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for _, item = range tagMap[userInfo.ID] {
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item.User = userInfo
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}
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}
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}
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return
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}
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func (s *topicSrvA) TagsByKeyword(keyword string) (res cs.TagInfoList, err error) {
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keyword = "%" + strings.Trim(keyword, " ") + "%"
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tag := &dbr.Tag{}
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var tags []*dbr.Tag
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if keyword == "%%" {
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tags, err = tag.List(s.db, &dbr.ConditionsT{
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"ORDER": "quote_num DESC",
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}, 0, 6)
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} else {
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tags, err = tag.List(s.db, &dbr.ConditionsT{
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"tag LIKE ?": keyword,
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"ORDER": "quote_num DESC",
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}, 0, 6)
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}
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if err == nil {
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for _, tag := range tags {
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res = append(res, &cs.TagInfo{
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ID: tag.ID,
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UserID: tag.UserID,
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Tag: tag.Tag,
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QuoteNum: tag.QuoteNum,
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})
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}
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}
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return
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}
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func (s *topicSrv) FollowTopic(userId int64, topicId int64) (err error) {
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return s.db.Create(&dbr.TopicUser{
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UserID: userId,
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TopicID: topicId,
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IsTop: 0,
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}).Error
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}
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func (s *topicSrv) UnfollowTopic(userId int64, topicId int64) error {
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return s.db.Exec("DELETE FROM "+s.tnTopicUser+" WHERE user_id=? AND topic_id=?", userId, topicId).Error
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}
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func (s *topicSrv) StickTopic(userId int64, topicId int64) (status int8, err error) {
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db := s.db.Begin()
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defer db.Rollback()
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m := &dbr.TopicUser{}
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err = db.Model(m).
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Where("user_id=? and topic_id=?", userId, topicId).
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UpdateColumn("is_top", gorm.Expr("1-is_top")).Error
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if err != nil {
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return
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}
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status = -1
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err = db.Model(m).Where("user_id=? and topic_id=?", userId, topicId).Select("is_top").Scan(&status).Error
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if err != nil {
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return
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}
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if status < 0 {
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return -1, errors.New("topic not exist")
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}
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db.Commit()
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return
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}
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