[bugfix/chore] Refactor timeline code (#1656)

* start poking timelines

* OK yes we're refactoring, but it's nothing like the last time so don't worry

* more fiddling

* update tests, simplify Get

* thanks linter, you're the best, mwah mwah kisses

* do a bit more tidying up

* start buggering about with the prepare function

* fix little oopsie

* start merging lists into 1

* ik heb een heel zwaar leven
nee nee echt waar

* hey it works we did it reddit

* regenerate swagger docs

* tidy up a wee bit

* adjust paging

* fix little error, remove unused functions

1 files changed, 34 insertions, 0 deletions

diff --git a/internal/timeline/types.go b/internal/timeline/types.go
new file mode 100644
index 000000000..6243799f5
--- /dev/null
+++ b/internal/timeline/types.go
@@ -0,0 +1,34 @@
+// 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 timeline
+
+// Timelineable represents any item that can be indexed in a timeline.
+type Timelineable interface {
+	GetID() string
+	GetAccountID() string
+	GetBoostOfID() string
+	GetBoostOfAccountID() string
+}
+
+// Preparable represents any item that can be prepared in a timeline.
+type Preparable interface {
+	GetID() string
+	GetAccountID() string
+	GetBoostOfID() string
+	GetBoostOfAccountID() string
+}