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// Copyright 2016 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package models
import (
"fmt"
"code.gitea.io/gitea/modules/util"
)
type (
// NotificationStatus is the status of the notification (read or unread)
NotificationStatus uint8
// NotificationSource is the source of the notification (issue, PR, commit, etc)
NotificationSource uint8
)
const (
// NotificationStatusUnread represents an unread notification
NotificationStatusUnread NotificationStatus = iota + 1
// NotificationStatusRead represents a read notification
NotificationStatusRead
// NotificationStatusPinned represents a pinned notification
NotificationStatusPinned
)
const (
// NotificationSourceIssue is a notification of an issue
NotificationSourceIssue NotificationSource = iota + 1
// NotificationSourcePullRequest is a notification of a pull request
NotificationSourcePullRequest
// NotificationSourceCommit is a notification of a commit
NotificationSourceCommit
)
// Notification represents a notification
type Notification struct {
ID int64 `xorm:"pk autoincr"`
UserID int64 `xorm:"INDEX NOT NULL"`
RepoID int64 `xorm:"INDEX NOT NULL"`
Status NotificationStatus `xorm:"SMALLINT INDEX NOT NULL"`
Source NotificationSource `xorm:"SMALLINT INDEX NOT NULL"`
IssueID int64 `xorm:"INDEX NOT NULL"`
CommitID string `xorm:"INDEX"`
UpdatedBy int64 `xorm:"INDEX NOT NULL"`
Issue *Issue `xorm:"-"`
Repository *Repository `xorm:"-"`
CreatedUnix util.TimeStamp `xorm:"created INDEX NOT NULL"`
UpdatedUnix util.TimeStamp `xorm:"updated INDEX NOT NULL"`
}
// CreateOrUpdateIssueNotifications creates an issue notification
// for each watcher, or updates it if already exists
func CreateOrUpdateIssueNotifications(issue *Issue, notificationAuthorID int64) error {
sess := x.NewSession()
defer sess.Close()
if err := sess.Begin(); err != nil {
return err
}
if err := createOrUpdateIssueNotifications(sess, issue, notificationAuthorID); err != nil {
return err
}
return sess.Commit()
}
func createOrUpdateIssueNotifications(e Engine, issue *Issue, notificationAuthorID int64) error {
issueWatches, err := getIssueWatchers(e, issue.ID)
if err != nil {
return err
}
watches, err := getWatchers(e, issue.RepoID)
if err != nil {
return err
}
notifications, err := getNotificationsByIssueID(e, issue.ID)
if err != nil {
return err
}
alreadyNotified := make(map[int64]struct{}, len(issueWatches)+len(watches))
notifyUser := func(userID int64) error {
// do not send notification for the own issuer/commenter
if userID == notificationAuthorID {
return nil
}
if _, ok := alreadyNotified[userID]; ok {
return nil
}
alreadyNotified[userID] = struct{}{}
if notificationExists(notifications, issue.ID, userID) {
return updateIssueNotification(e, userID, issue.ID, notificationAuthorID)
}
return createIssueNotification(e, userID, issue, notificationAuthorID)
}
for _, issueWatch := range issueWatches {
// ignore if user unwatched the issue
if !issueWatch.IsWatching {
alreadyNotified[issueWatch.UserID] = struct{}{}
continue
}
if err := notifyUser(issueWatch.UserID); err != nil {
return err
}
}
err = issue.loadRepo(e)
if err != nil {
return err
}
for _, watch := range watches {
issue.Repo.Units = nil
if issue.IsPull && !issue.Repo.checkUnitUser(e, watch.UserID, false, UnitTypePullRequests) {
continue
}
if !issue.IsPull && !issue.Repo.checkUnitUser(e, watch.UserID, false, UnitTypeIssues) {
continue
}
if err := notifyUser(watch.UserID); err != nil {
return err
}
}
return nil
}
func getNotificationsByIssueID(e Engine, issueID int64) (notifications []*Notification, err error) {
err = e.
Where("issue_id = ?", issueID).
Find(¬ifications)
return
}
func notificationExists(notifications []*Notification, issueID, userID int64) bool {
for _, notification := range notifications {
if notification.IssueID == issueID && notification.UserID == userID {
return true
}
}
return false
}
func createIssueNotification(e Engine, userID int64, issue *Issue, updatedByID int64) error {
notification := &Notification{
UserID: userID,
RepoID: issue.RepoID,
Status: NotificationStatusUnread,
IssueID: issue.ID,
UpdatedBy: updatedByID,
}
if issue.IsPull {
notification.Source = NotificationSourcePullRequest
} else {
notification.Source = NotificationSourceIssue
}
_, err := e.Insert(notification)
return err
}
func updateIssueNotification(e Engine, userID, issueID, updatedByID int64) error {
notification, err := getIssueNotification(e, userID, issueID)
if err != nil {
return err
}
notification.Status = NotificationStatusUnread
notification.UpdatedBy = updatedByID
_, err = e.ID(notification.ID).Update(notification)
return err
}
func getIssueNotification(e Engine, userID, issueID int64) (*Notification, error) {
notification := new(Notification)
_, err := e.
Where("user_id = ?", userID).
And("issue_id = ?", issueID).
Get(notification)
return notification, err
}
// NotificationsForUser returns notifications for a given user and status
func NotificationsForUser(user *User, statuses []NotificationStatus, page, perPage int) ([]*Notification, error) {
return notificationsForUser(x, user, statuses, page, perPage)
}
func notificationsForUser(e Engine, user *User, statuses []NotificationStatus, page, perPage int) (notifications []*Notification, err error) {
if len(statuses) == 0 {
return
}
sess := e.
Where("user_id = ?", user.ID).
In("status", statuses).
OrderBy("updated_unix DESC")
if page > 0 && perPage > 0 {
sess.Limit(perPage, (page-1)*perPage)
}
err = sess.Find(¬ifications)
return
}
// GetRepo returns the repo of the notification
func (n *Notification) GetRepo() (*Repository, error) {
n.Repository = new(Repository)
_, err := x.
Where("id = ?", n.RepoID).
Get(n.Repository)
return n.Repository, err
}
// GetIssue returns the issue of the notification
func (n *Notification) GetIssue() (*Issue, error) {
n.Issue = new(Issue)
_, err := x.
Where("id = ?", n.IssueID).
Get(n.Issue)
return n.Issue, err
}
// GetNotificationCount returns the notification count for user
func GetNotificationCount(user *User, status NotificationStatus) (int64, error) {
return getNotificationCount(x, user, status)
}
func getNotificationCount(e Engine, user *User, status NotificationStatus) (count int64, err error) {
count, err = e.
Where("user_id = ?", user.ID).
And("status = ?", status).
Count(&Notification{})
return
}
func setNotificationStatusReadIfUnread(e Engine, userID, issueID int64) error {
notification, err := getIssueNotification(e, userID, issueID)
// ignore if not exists
if err != nil {
return nil
}
if notification.Status != NotificationStatusUnread {
return nil
}
notification.Status = NotificationStatusRead
_, err = e.ID(notification.ID).Update(notification)
return err
}
// SetNotificationStatus change the notification status
func SetNotificationStatus(notificationID int64, user *User, status NotificationStatus) error {
notification, err := getNotificationByID(notificationID)
if err != nil {
return err
}
if notification.UserID != user.ID {
return fmt.Errorf("Can't change notification of another user: %d, %d", notification.UserID, user.ID)
}
notification.Status = status
_, err = x.ID(notificationID).Update(notification)
return err
}
func getNotificationByID(notificationID int64) (*Notification, error) {
notification := new(Notification)
ok, err := x.
Where("id = ?", notificationID).
Get(notification)
if err != nil {
return nil, err
}
if !ok {
return nil, fmt.Errorf("Notification %d does not exists", notificationID)
}
return notification, nil
}
// UpdateNotificationStatuses updates the statuses of all of a user's notifications that are of the currentStatus type to the desiredStatus
func UpdateNotificationStatuses(user *User, currentStatus NotificationStatus, desiredStatus NotificationStatus) error {
n := &Notification{Status: desiredStatus, UpdatedBy: user.ID}
_, err := x.
Where("user_id = ? AND status = ?", user.ID, currentStatus).
Cols("status", "updated_by", "updated_unix").
Update(n)
return err
}
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