[feature] Self-serve email change for users (#2957)

* [feature] Email change

* frontend stuff for changing email

* docs

* tests etc

* differentiate more clearly between local user+account and account

* populate user

internal/processing/user/delete.go

@@ -0,0 +1,48 @@
+// 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 user
+
+import (
+	"context"
+
+	"github.com/superseriousbusiness/gotosocial/internal/ap"
+	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/messages"
+)
+
+// DeleteSelf is like Account.Delete, but specifically
+// for local user+accounts deleting themselves.
+//
+// Calling DeleteSelf results in a delete message being enqueued in the processor,
+// which causes side effects to occur: delete will be federated out to other instances,
+// and the above Delete function will be called afterwards from the processor, to clear
+// out the account's bits and bobs, and stubbify it.
+func (p *Processor) DeleteSelf(ctx context.Context, account *gtsmodel.Account) gtserror.WithCode {
+	// Process the delete side effects asynchronously.
+	p.state.Workers.Client.Queue.Push(&messages.FromClientAPI{
+		// Use ap.ObjectProfile here to
+		// distinguish this message (user model)
+		// from ap.ActorPerson (account model).
+		APObjectType:   ap.ObjectProfile,
+		APActivityType: ap.ActivityDelete,
+		Origin:         account,
+		Target:         account,
+	})
+	return nil
+}