[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>

internal/db/bundb/rule_test.go

@@ -0,0 +1,122 @@
+// 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 bundb_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/suite"
+	"github.com/superseriousbusiness/gotosocial/internal/db"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/id"
+)
+
+type RuleTestSuite struct {
+	BunDBStandardTestSuite
+}
+
+func (suite *RuleTestSuite) TestPutRuleWithExisting() {
+	r := &gtsmodel.Rule{
+		ID:   id.NewULID(),
+		Text: "Pee pee poo poo",
+	}
+
+	if err := suite.state.DB.PutRule(context.Background(), r); err != nil {
+		suite.FailNow(err.Error())
+	}
+
+	suite.Equal(uint(len(suite.testRules)), *r.Order)
+}
+
+func (suite *RuleTestSuite) TestPutRuleNoExisting() {
+	var (
+		ctx      = context.Background()
+		whereAny = []db.Where{{Key: "id", Value: "", Not: true}}
+	)
+
+	// Wipe all existing rules from the DB.
+	if err := suite.state.DB.DeleteWhere(
+		ctx,
+		whereAny,
+		&[]*gtsmodel.Rule{},
+	); err != nil {
+		suite.FailNow(err.Error())
+	}
+
+	r := &gtsmodel.Rule{
+		ID:   id.NewULID(),
+		Text: "Pee pee poo poo",
+	}
+
+	if err := suite.state.DB.PutRule(ctx, r); err != nil {
+		suite.FailNow(err.Error())
+	}
+
+	// New rule is now only rule.
+	suite.EqualValues(uint(0), *r.Order)
+}
+
+func (suite *RuleTestSuite) TestGetRuleByID() {
+	rule, err := suite.state.DB.GetRuleByID(
+		context.Background(),
+		suite.testRules["rule1"].ID,
+	)
+	if err != nil {
+		suite.FailNow(err.Error())
+	}
+
+	suite.NotNil(rule)
+}
+
+func (suite *RuleTestSuite) TestGetRulesByID() {
+	ruleIDs := make([]string, 0, len(suite.testRules))
+	for _, rule := range suite.testRules {
+		ruleIDs = append(ruleIDs, rule.ID)
+	}
+
+	rules, err := suite.state.DB.GetRulesByIDs(
+		context.Background(),
+		ruleIDs,
+	)
+	if err != nil {
+		suite.FailNow(err.Error())
+	}
+
+	suite.Len(rules, len(suite.testRules))
+}
+
+func (suite *RuleTestSuite) TestGetActiveRules() {
+	var activeRules int
+	for _, rule := range suite.testRules {
+		if !*rule.Deleted {
+			activeRules++
+		}
+	}
+
+	rules, err := suite.state.DB.GetActiveRules(context.Background())
+	if err != nil {
+		suite.FailNow(err.Error())
+	}
+
+	suite.Len(rules, activeRules)
+}
+
+func TestRuleTestSuite(t *testing.T) {
+	suite.Run(t, new(RuleTestSuite))
+}