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get_user.go
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get_user.go
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// SPDX-License-Identifier: AGPL-3.0-only
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, version 3.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>
package ctrl
import (
"context"
"errors"
"time"
"go.uber.org/zap"
"github.com/bangumi/server/internal/ctrl/internal/cachekey"
"github.com/bangumi/server/internal/domain"
"github.com/bangumi/server/internal/model"
"github.com/bangumi/server/internal/pkg/errgo"
"github.com/bangumi/server/internal/pkg/generic/gmap"
)
func (ctl Ctrl) GetUser(ctx context.Context, userID model.UserID) (model.User, error) {
ctl.metricUserQueryCount.Inc(1)
var key = cachekey.User(userID)
// try to read from cache
var r model.User
ok, err := ctl.cache.Get(ctx, key, &r)
if err != nil {
return r, errgo.Wrap(err, "cache.Get")
}
if ok {
ctl.metricUserQueryCached.Inc(1)
return r, nil
}
r, err = ctl.user.GetByID(ctx, userID)
if err != nil {
if errors.Is(err, domain.ErrNotFound) {
return r, domain.ErrUserNotFound
}
return r, errgo.Wrap(err, "userRepo.Get")
}
if e := ctl.cache.Set(ctx, key, r, time.Hour); e != nil {
ctl.log.Error("can't set response to cache", zap.Error(e))
}
return r, nil
}
func (ctl Ctrl) GetUsersByIDs(ctx context.Context, userIDs []model.UserID) (map[model.UserID]model.User, error) {
ctl.metricUserQueryCount.Inc(int64(len(userIDs)))
var notCached = make([]model.UserID, 0, len(userIDs))
var result = make(map[model.UserID]model.User, len(userIDs))
for _, userID := range userIDs {
key := cachekey.User(userID)
var s model.User
ok, err := ctl.cache.Get(ctx, key, &s)
if err != nil {
return nil, errgo.Wrap(err, "cache.Get")
}
if ok {
result[userID] = s
} else {
notCached = append(notCached, userID)
}
}
ctl.metricUserQueryCached.Inc(int64(len(result)))
newUserMap, err := ctl.user.GetByIDs(ctx, notCached)
if err != nil {
return nil, errgo.Wrap(err, "failed to get subjects")
}
for userID, user := range newUserMap {
err := ctl.cache.Set(ctx, cachekey.User(userID), user, time.Hour)
if err != nil {
ctl.log.Error("failed to set user cache")
}
}
gmap.Copy(result, newUserMap)
return result, nil
}
func (ctl Ctrl) GetFriends(ctx context.Context, id model.UserID) (map[model.UserID]domain.FriendItem, error) {
if id == 0 {
return map[model.UserID]domain.FriendItem{}, nil
}
f, err := ctl.user.GetFriends(ctx, id)
if err != nil {
return nil, errgo.Wrap(err, "userRepo.GetFriends")
}
return f, nil
}