[feature/chore] Add Move database functions + cache (#2647)

* [feature/chore] Add Move database functions + cache

* add move mem ratio to envparsing.sh

* update comment

2 files changed, 54 insertions, 1 deletions

diff --git a/internal/gtsmodel/account.go b/internal/gtsmodel/account.go
index 5421c41bb..8b1412255 100644
--- a/internal/gtsmodel/account.go
+++ b/internal/gtsmodel/account.go
@@ -23,6 +23,7 @@ package gtsmodel
 
 import (
 	"crypto/rsa"
+	"slices"
 	"strings"
 	"time"
 
@@ -54,8 +55,10 @@ type Account struct {
 	Memorial                *bool            `bun:",default:false"`                 // Is this a memorial account, ie., has the user passed away?
 	AlsoKnownAsURIs         []string         `bun:"also_known_as_uris,array"`       // This account is associated with these account URIs.
 	AlsoKnownAs             []*Account       `bun:"-"`                              // This account is associated with these accounts (field not stored in the db).
-	MovedToURI              string           `bun:",nullzero"`                      // This account has moved to this account URI.
+	MovedToURI              string           `bun:",nullzero"`                      // This account has (or claims to have) moved to this account URI. Even if this field is set the move may not yet have been processed. Check `move` for this.
 	MovedTo                 *Account         `bun:"-"`                              // This account has moved to this account (field not stored in the db).
+	MoveID                  string           `bun:""`                               // ID of a Move in the database for this account. Only set if we received or created a Move activity for which this account URI was the origin.
+	Move                    *Move            `bun:"-"`                              // Move corresponding to MoveID, if set.
 	Bot                     *bool            `bun:",default:false"`                 // Does this account identify itself as a bot?
 	Reason                  string           `bun:""`                               // What reason was given for signing up when this account was created?
 	Locked                  *bool            `bun:",default:true"`                  // Does this account need an approval for new followers?
@@ -172,6 +175,18 @@ func (a *Account) PubKeyExpired() bool {
 		a.PublicKeyExpiresAt.Before(time.Now())
 }
 
+// IsAliasedTo returns true if account
+// is aliased to the given account URI.
+func (a *Account) IsAliasedTo(uri string) bool {
+	return slices.Contains(a.AlsoKnownAsURIs, uri)
+}
+
+// IsSuspended returns true if account
+// has been suspended from this instance.
+func (a *Account) IsSuspended() bool {
+	return !a.SuspendedAt.IsZero()
+}
+
 // AccountToEmoji is an intermediate struct to facilitate the many2many relationship between an account and one or more emojis.
 type AccountToEmoji struct {
 	AccountID string   `bun:"type:CHAR(26),unique:accountemoji,nullzero,notnull"`
diff --git a/internal/gtsmodel/move.go b/internal/gtsmodel/move.go
new file mode 100644
index 000000000..c8b803822
--- /dev/null
+++ b/internal/gtsmodel/move.go
@@ -0,0 +1,38 @@
+// GoToSocial
+// Copyright (C) GoToSocial Authors admin@gotosocial.org
+// SPDX-License-Identifier: AGPL-3.0-or-later
+//
+// 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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 <http://www.gnu.org/licenses/>.
+
+package gtsmodel
+
+import (
+	"net/url"
+	"time"
+)
+
+// Move represents an ActivityPub "Move" activity
+// received (or created) by this instance.
+type Move struct {
+	ID          string    `bun:"type:CHAR(26),pk,nullzero,notnull,unique"`                    // ID of this item in the database.
+	CreatedAt   time.Time `bun:"type:timestamptz,nullzero,notnull,default:current_timestamp"` // When was item created.
+	UpdatedAt   time.Time `bun:"type:timestamptz,nullzero,notnull,default:current_timestamp"` // When was item last updated.
+	AttemptedAt time.Time `bun:"type:timestamptz,nullzero"`                                   // When was processing of the Move to TargetURI last attempted by our instance (zero if not yet attempted).
+	SucceededAt time.Time `bun:"type:timestamptz,nullzero"`                                   // When did the processing of the Move to TargetURI succeed according to our criteria (zero if not yet complete).
+	OriginURI   string    `bun:",nullzero,notnull,unique:moveorigintarget"`                   // OriginURI of the Move. Ie., the Move Object.
+	Origin      *url.URL  `bun:"-"`                                                           // URL corresponding to OriginURI. Not stored in the database.
+	TargetURI   string    `bun:",nullzero,notnull,unique:moveorigintarget"`                   // TargetURI of the Move. Ie., the Move Target.
+	Target      *url.URL  `bun:"-"`                                                           // URL corresponding to TargetURI. Not stored in the database.
+	URI         string    `bun:",nullzero,notnull,unique"`                                    // ActivityPub ID/URI of the Move Activity itself.
+}