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honor user perference to not be followed and delete them

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This commit is contained in:
Andre Medeiros 2021-10-09 11:44:19 -04:00
parent 4955f74f52
commit 19ed17b086
6 changed files with 89 additions and 15 deletions
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1
internal/domain/user.go
View file

@ -23,4 +23,5 @@ type UserRepository interface {
GetByName(context.Context, string) (User, error)
CreateOrUpdate(context.Context, *User) error
Delete(context.Context, int64) error
}

6
internal/domain/watcher.go
View file

@ -10,8 +10,9 @@ const (
)
type Watcher struct {
ID int64
CreatedAt float64
ID int64
CreatedAt float64
LastNotifiedAt float64
DeviceID int64
AccountID int64
@ -35,4 +36,5 @@ type WatcherRepository interface {
Update(ctx context.Context, watcher *Watcher) error
IncrementHits(ctx context.Context, id int64) error
Delete(ctx context.Context, id int64) error
DeleteByTypeAndWatcheeID(context.Context, WatcherType, int64) error
}

11
internal/repository/postgres_user.go
View file

@ -2,6 +2,7 @@ package repository
import (
"context"
"fmt"
"strings"
"github.com/christianselig/apollo-backend/internal/domain"
@ -91,3 +92,13 @@ func (p *postgresUserRepository) CreateOrUpdate(ctx context.Context, u *domain.U
u.LastCheckedAt,
).Scan(&u.ID)
}
func (p *postgresUserRepository) Delete(ctx context.Context, id int64) error {
query := `DELETE FROM users WHERE id = $1`
res, err := p.pool.Exec(ctx, query, id)
if res.RowsAffected() != 1 {
return fmt.Errorf("weird behaviour, total rows affected: %d", res.RowsAffected())
}
return err
}

25
internal/repository/postgres_watcher.go
View file

@ -31,6 +31,7 @@ func (p *postgresWatcherRepository) fetch(ctx context.Context, query string, arg
if err := rows.Scan(
&watcher.ID,
&watcher.CreatedAt,
&watcher.LastNotifiedAt,
&watcher.DeviceID,
&watcher.AccountID,
&watcher.Type,
@ -50,7 +51,7 @@ func (p *postgresWatcherRepository) fetch(ctx context.Context, query string, arg
func (p *postgresWatcherRepository) GetByID(ctx context.Context, id int64) (domain.Watcher, error) {
query := `
SELECT id, created_at, device_id, account_id, type, watchee_id, upvotes, keyword, flair, domain, hits
SELECT id, created_at, last_notified_at, device_id, account_id, type, watchee_id, upvotes, keyword, flair, domain, hits
FROM watchers
WHERE id = $1`
@ -67,7 +68,7 @@ func (p *postgresWatcherRepository) GetByID(ctx context.Context, id int64) (doma
func (p *postgresWatcherRepository) GetByTypeAndWatcheeID(ctx context.Context, typ domain.WatcherType, id int64) ([]domain.Watcher, error) {
query := `
SELECT id, created_at, device_id, account_id, type, watchee_id, upvotes, keyword, flair, domain, hits
SELECT id, created_at, last_notified_at, device_id, account_id, type, watchee_id, upvotes, keyword, flair, domain, hits
FROM watchers
WHERE type = $1 AND watchee_id = $2`
@ -87,6 +88,7 @@ func (p *postgresWatcherRepository) GetByDeviceAPNSTokenAndAccountRedditID(ctx c
SELECT
watchers.id,
watchers.created_at,
watchers.last_notified_at
watchers.device_id,
watchers.account_id,
watchers.type,
@ -111,8 +113,8 @@ func (p *postgresWatcherRepository) Create(ctx context.Context, watcher *domain.
query := `
INSERT INTO watchers
(created_at, device_id, account_id, type, watchee_id, upvotes, keyword, flair, domain)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
(created_at, last_notified_at, device_id, account_id, type, watchee_id, upvotes, keyword, flair, domain)
VALUES ($1, 0, $2, $3, $4, $5, $6, $7, $8, $9)
RETURNING id`
return p.pool.QueryRow(
@ -156,8 +158,9 @@ func (p *postgresWatcherRepository) Update(ctx context.Context, watcher *domain.
}
func (p *postgresWatcherRepository) IncrementHits(ctx context.Context, id int64) error {
query := `UPDATE watchers SET hits = hits + 1 WHERE id = $1`
res, err := p.pool.Exec(ctx, query, id)
now := time.Now().Unix()
query := `UPDATE watchers SET hits = hits + 1, last_notified_at = $2 WHERE id = $1`
res, err := p.pool.Exec(ctx, query, id, now)
if res.RowsAffected() != 1 {
return fmt.Errorf("weird behaviour, total rows affected: %d", res.RowsAffected())
@ -174,3 +177,13 @@ func (p *postgresWatcherRepository) Delete(ctx context.Context, id int64) error
}
return err
}
func (p *postgresWatcherRepository) DeleteByTypeAndWatcheeID(ctx context.Context, typ domain.WatcherType, id int64) error {
query := `DELETE FROM watchers WHERE type = $1 AND watchee_id = $2`
res, err := p.pool.Exec(ctx, query, typ, id)
if res.RowsAffected() == 0 {
return fmt.Errorf("weird behaviour, total rows affected: %d", res.RowsAffected())
}
return err
}

11
internal/worker/subreddits.go
View file

@ -332,8 +332,6 @@ func (sc *subredditsConsumer) Consume(delivery rmq.Delivery) {
continue
}
_ = sc.watcherRepo.IncrementHits(ctx, watcher.ID)
lockKey := fmt.Sprintf("watcher:%d:%s", watcher.DeviceID, post.ID)
notified, _ := sc.redis.Get(ctx, lockKey).Bool()
@ -348,6 +346,15 @@ func (sc *subredditsConsumer) Consume(delivery rmq.Delivery) {
continue
}
if err := sc.watcherRepo.IncrementHits(ctx, watcher.ID); err != nil {
sc.logger.WithFields(logrus.Fields{
"subreddit#id": subreddit.ID,
"watcher#id": watcher.ID,
"err": err,
}).Error("could not increment hits")
return
}
sc.logger.WithFields(logrus.Fields{
"subreddit#id": subreddit.ID,
"subreddit#name": subreddit.Name,

50
internal/worker/users.go
View file

@ -168,7 +168,6 @@ func (uc *usersConsumer) Consume(delivery rmq.Delivery) {
if len(watchers) == 0 {
uc.logger.WithFields(logrus.Fields{
"user#id": user.ID,
"err": err,
}).Info("no watchers for user, skipping")
return
}
@ -180,6 +179,37 @@ func (uc *usersConsumer) Consume(delivery rmq.Delivery) {
acc, _ := uc.accountRepo.GetByID(ctx, watcher.AccountID)
rac := uc.reddit.NewAuthenticatedClient(acc.RefreshToken, acc.AccessToken)
ru, err := rac.UserAbout(user.Name)
if err != nil {
uc.logger.WithFields(logrus.Fields{
"user#id": user.ID,
"err": err,
}).Error("failed to fetch user details")
return
}
if !ru.AcceptFollowers {
uc.logger.WithFields(logrus.Fields{
"user#id": user.ID,
}).Info("user disabled followers, removing")
if err := uc.watcherRepo.DeleteByTypeAndWatcheeID(ctx, domain.UserWatcher, user.ID); err != nil {
uc.logger.WithFields(logrus.Fields{
"user#id": user.ID,
"err": err,
}).Error("failed to delete watchers for user who does not allow followers")
return
}
if err := uc.userRepo.Delete(ctx, user.ID); err != nil {
uc.logger.WithFields(logrus.Fields{
"user#id": user.ID,
"err": err,
}).Error("failed to delete user")
return
}
}
posts, err := rac.UserPosts(user.Name)
if err != nil {
uc.logger.WithFields(logrus.Fields{
@ -190,10 +220,6 @@ func (uc *usersConsumer) Consume(delivery rmq.Delivery) {
}
for _, post := range posts.Children {
if post.CreatedAt < user.LastCheckedAt {
break
}
notification := &apns2.Notification{}
notification.Topic = "com.christianselig.Apollo"
notification.Payload = payloadFromUserPost(post)
@ -203,6 +229,20 @@ func (uc *usersConsumer) Consume(delivery rmq.Delivery) {
if watcher.CreatedAt > post.CreatedAt {
continue
}
if watcher.LastNotifiedAt > post.CreatedAt {
continue
}
if err := uc.watcherRepo.IncrementHits(ctx, watcher.ID); err != nil {
uc.logger.WithFields(logrus.Fields{
"user#id": user.ID,
"watcher#id": watcher.ID,
"err": err,
}).Error("could not increment hits")
return
}
device, _ := uc.deviceRepo.GetByID(ctx, watcher.DeviceID)
notification.DeviceToken = device.APNSToken