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wakapi/repositories/leaderboard.go
2022-10-20 08:33:12 +02:00

109 lines
2.8 KiB
Go

package repositories
import (
"github.com/muety/wakapi/models"
"github.com/muety/wakapi/utils"
"gorm.io/gorm"
"gorm.io/gorm/clause"
)
type LeaderboardRepository struct {
db *gorm.DB
}
func NewLeaderboardRepository(db *gorm.DB) *LeaderboardRepository {
return &LeaderboardRepository{db: db}
}
func (r *LeaderboardRepository) InsertBatch(items []*models.LeaderboardItem) error {
if err := r.db.
Clauses(clause.OnConflict{DoNothing: true}).
Create(&items).Error; err != nil {
return err
}
return nil
}
func (r *LeaderboardRepository) CountAllByUser(userId string) (int64, error) {
var count int64
err := r.db.
Table("leaderboard_items").
Where("user_id = ?", userId).
Count(&count).Error
return count, err
}
func (r *LeaderboardRepository) CountUsers() (int64, error) {
var count int64
err := r.db.
Table("leaderboard_items").
Distinct("user_id").
Count(&count).Error
return count, err
}
func (r *LeaderboardRepository) GetAllAggregatedByInterval(key *models.IntervalKey, by *uint8, limit, skip int) ([]*models.LeaderboardItemRanked, error) {
// TODO: distinct by (user, key) to filter out potential duplicates ?
var items []*models.LeaderboardItemRanked
subq := r.db.
Table("leaderboard_items").
Select("*, rank() over (partition by \"key\" order by total desc) as \"rank\"").
Where("\"interval\" in ?", *key)
subq = utils.WhereNullable(subq, "\"by\"", by)
q := r.db.Table("(?) as ranked", subq)
q = r.withPaging(q, limit, skip)
if err := q.Find(&items).Error; err != nil {
return nil, err
}
return items, nil
}
func (r *LeaderboardRepository) GetAggregatedByUserAndInterval(userId string, key *models.IntervalKey, by *uint8, limit, skip int) ([]*models.LeaderboardItemRanked, error) {
var items []*models.LeaderboardItemRanked
subq := r.db.
Table("leaderboard_items").
Select("*, rank() over (partition by \"key\" order by total desc) as \"rank\"").
Where("\"interval\" in ?", *key)
subq = utils.WhereNullable(subq, "\"by\"", by)
q := r.db.Table("(?) as ranked", subq).Where("user_id = ?", userId)
q = r.withPaging(q, limit, skip)
if err := q.Find(&items).Error; err != nil {
return nil, err
}
return items, nil
}
func (r *LeaderboardRepository) DeleteByUser(userId string) error {
if err := r.db.
Where("user_id = ?", userId).
Delete(models.LeaderboardItem{}).Error; err != nil {
return err
}
return nil
}
func (r *LeaderboardRepository) DeleteByUserAndInterval(userId string, key *models.IntervalKey) error {
if err := r.db.
Where("user_id = ?", userId).
Where("\"interval\" in ?", *key).
Delete(models.LeaderboardItem{}).Error; err != nil {
return err
}
return nil
}
func (r *LeaderboardRepository) withPaging(q *gorm.DB, limit, skip int) *gorm.DB {
if limit > 0 {
q = q.Where("\"rank\" <= ?", skip+limit)
}
if skip > 0 {
q = q.Where("\"rank\" > ?", skip)
}
return q
}