[feature] Status thread mute/unmute functionality (#2278)

* add db models + functions for keeping track of threads

* give em the old linty testy

* create, remove, check mutes

* swagger

* testerino

* test mute/unmute via api

* add info log about new index creation

* thread + allow muting of any remote statuses that mention a local account

* IsStatusThreadMutedBy -> IsThreadMutedByAccount

* use common processing functions in status processor

* set = NULL

* favee!

* get rekt darlings, darlings get rekt

* testrig please, have mercy muy liege

4 files changed, 74 insertions, 8 deletions

diff --git a/internal/gtsmodel/status.go b/internal/gtsmodel/status.go
index 3e8880798..fe8aa4a7b 100644
--- a/internal/gtsmodel/status.go
+++ b/internal/gtsmodel/status.go
@@ -20,6 +20,8 @@ package gtsmodel
 import (
 	"time"
 
+	"slices"
+
 	"github.com/superseriousbusiness/gotosocial/internal/log"
 )
 
@@ -54,6 +56,7 @@ type Status struct {
 	BoostOfAccountID         string             `bun:"type:CHAR(26),nullzero"`                                      // id of the account that owns the boosted status
 	BoostOf                  *Status            `bun:"-"`                                                           // status that corresponds to boostOfID
 	BoostOfAccount           *Account           `bun:"rel:belongs-to"`                                              // account that corresponds to boostOfAccountID
+	ThreadID                 string             `bun:"type:CHAR(26),nullzero"`                                      // id of the thread to which this status belongs; only set for remote statuses if a local account is involved at some point in the thread, otherwise null
 	ContentWarning           string             `bun:",nullzero"`                                                   // cw string for this status
 	Visibility               Visibility         `bun:",nullzero,notnull"`                                           // visibility entry for this status
 	Sensitive                *bool              `bun:",nullzero,notnull,default:false"`                             // mark the status as sensitive?
@@ -241,13 +244,15 @@ func (s *Status) EmojisUpToDate(other *Status) bool {
 }
 
 // MentionsAccount returns whether status mentions the given account ID.
-func (s *Status) MentionsAccount(id string) bool {
-	for _, mention := range s.Mentions {
-		if mention.TargetAccountID == id {
-			return true
-		}
-	}
-	return false
+func (s *Status) MentionsAccount(accountID string) bool {
+	return slices.ContainsFunc(s.Mentions, func(m *Mention) bool {
+		return m.TargetAccountID == accountID
+	})
+}
+
+// BelongsToAccount returns whether status belongs to the given account ID.
+func (s *Status) BelongsToAccount(accountID string) bool {
+	return s.AccountID == accountID
 }
 
 // StatusToTag is an intermediate struct to facilitate the many2many relationship between a status and one or more tags.
diff --git a/internal/gtsmodel/statusmute.go b/internal/gtsmodel/statusmute.go
index b8aca1c7a..a6f895a29 100644
--- a/internal/gtsmodel/statusmute.go
+++ b/internal/gtsmodel/statusmute.go
@@ -19,7 +19,7 @@ package gtsmodel
 
 import "time"
 
-// StatusMute refers to one account having muted the status of another account or its own.
+// StatusMute IS DEPRECATED -- USE THREADMUTE INSTEAD NOW! THIS TABLE DOESN'T EXIST ANYMORE!
 type StatusMute 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
diff --git a/internal/gtsmodel/thread.go b/internal/gtsmodel/thread.go
new file mode 100644
index 000000000..5d5af1993
--- /dev/null
+++ b/internal/gtsmodel/thread.go
@@ -0,0 +1,32 @@
+// 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
+
+// Thread represents one thread of statuses.
+// TODO: add more fields here if necessary.
+type Thread struct {
+	ID        string   `bun:"type:CHAR(26),pk,nullzero,notnull,unique"` // id of this item in the database
+	StatusIDs []string `bun:"-"`                                        // ids of statuses belonging to this thread (order not guaranteed)
+}
+
+// ThreadToStatus is an intermediate struct to facilitate the
+// many2many relationship between a thread and one or more statuses.
+type ThreadToStatus struct {
+	ThreadID string `bun:"type:CHAR(26),unique:statusthread,nullzero,notnull"`
+	StatusID string `bun:"type:CHAR(26),unique:statusthread,nullzero,notnull"`
+}
diff --git a/internal/gtsmodel/threadmute.go b/internal/gtsmodel/threadmute.go
new file mode 100644
index 000000000..170f568a1
--- /dev/null
+++ b/internal/gtsmodel/threadmute.go
@@ -0,0 +1,29 @@
+// 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 "time"
+
+// ThreadMute represents an account-level mute of a thread of statuses.
+type ThreadMute 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
+	ThreadID  string    `bun:"type:CHAR(26),nullzero,notnull,unique:thread_mute_thread_id_account_id"` // ID of the muted thread
+	AccountID string    `bun:"type:CHAR(26),nullzero,notnull,unique:thread_mute_thread_id_account_id"` // Account ID of the creator of this mute
+}