[feature] Instance rules (#2125)

* init instance rules database model, admin api

* expose instance rules in public instance api

* public /api/v1/instance/rules route

* GET ruleById

* createRule route

* createRule auth check

* updateRule

* deleteRule

* list rules on about page

* ruleGet auth

* add about page ids for anchors

* process and store adding violated rules to reports

* admin api models for instance rules

* instance rule edit frontend

* change rule inputs to textareas

* database fixes after rebase (#2124)

* remove unused imports

* fix db migration column name

* fix tests

* fix more tests

* fix postgres error with wrongly used Ident

* add some tests, fiddle with rule model a bit, fix postgres migration

* swagger docs

---------

Co-authored-by: tsmethurst <tobi.smethurst@protonmail.com>

3 files changed, 33 insertions, 0 deletions

diff --git a/internal/gtsmodel/instance.go b/internal/gtsmodel/instance.go
index 388f0f4ed..6d572f519 100644
--- a/internal/gtsmodel/instance.go
+++ b/internal/gtsmodel/instance.go
@@ -39,4 +39,5 @@ type Instance struct {
 	ContactAccount         *Account     `bun:"rel:belongs-to"`                                              // account corresponding to contactAccountID
 	Reputation             int64        `bun:",notnull,default:0"`                                          // Reputation score of this instance
 	Version                string       `bun:",nullzero"`                                                   // Version of the software used on this instance
+	Rules                  []Rule       `bun:"-"`                                                           // List of instance rules
 }
diff --git a/internal/gtsmodel/report.go b/internal/gtsmodel/report.go
index e5b942563..b332ec348 100644
--- a/internal/gtsmodel/report.go
+++ b/internal/gtsmodel/report.go
@@ -37,6 +37,8 @@ type Report struct {
 	Comment                string    `bun:",nullzero"`                                                   // comment / explanation for this report, by the reporter
 	StatusIDs              []string  `bun:"statuses,array"`                                              // database IDs of any statuses referenced by this report
 	Statuses               []*Status `bun:"-"`                                                           // statuses corresponding to StatusIDs
+	RuleIDs                []string  `bun:"rules,array"`                                                 // database IDs of any rules referenced by this report
+	Rules                  []*Rule   `bun:"-"`                                                           // rules corresponding to RuleIDs
 	Forwarded              *bool     `bun:",nullzero,notnull,default:false"`                             // flag to indicate report should be forwarded to remote instance
 	ActionTaken            string    `bun:",nullzero"`                                                   // string description of what action was taken in response to this report
 	ActionTakenAt          time.Time `bun:"type:timestamptz,nullzero"`                                   // time at which action was taken, if any
diff --git a/internal/gtsmodel/rule.go b/internal/gtsmodel/rule.go
new file mode 100644
index 000000000..76fa6f7bd
--- /dev/null
+++ b/internal/gtsmodel/rule.go
@@ -0,0 +1,30 @@
+// 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"
+
+// Rule models an instance rule set by the admin
+type Rule 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
+	Text      string    `bun:",nullzero"`                                                   // text content of the rule
+	Order     *uint     `bun:",nullzero,notnull,unique"`                                    // rule ordering, index from 0
+	Deleted   *bool     `bun:",nullzero,notnull,default:false"`                             // has this rule been deleted, still kept in database for reference in historic reports
+}