/*
   GoToSocial
   Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org

   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 federatingdb

import (
	"context"

	"codeberg.org/gruf/go-mutexes"
	"github.com/superseriousbusiness/activity/pub"
	"github.com/superseriousbusiness/activity/streams/vocab"
	"github.com/superseriousbusiness/gotosocial/internal/concurrency"
	"github.com/superseriousbusiness/gotosocial/internal/db"
	"github.com/superseriousbusiness/gotosocial/internal/messages"
	"github.com/superseriousbusiness/gotosocial/internal/typeutils"
)

// DB wraps the pub.Database interface with a couple of custom functions for GoToSocial.
type DB interface {
	pub.Database
	Undo(ctx context.Context, undo vocab.ActivityStreamsUndo) error
	Accept(ctx context.Context, accept vocab.ActivityStreamsAccept) error
	Reject(ctx context.Context, reject vocab.ActivityStreamsReject) error
	Announce(ctx context.Context, announce vocab.ActivityStreamsAnnounce) error
}

// FederatingDB uses the underlying DB interface to implement the go-fed pub.Database interface.
// It doesn't care what the underlying implementation of the DB interface is, as long as it works.
type federatingDB struct {
	locks         mutexes.MutexMap
	db            db.DB
	fedWorker     *concurrency.WorkerPool[messages.FromFederator]
	typeConverter typeutils.TypeConverter
}

// New returns a DB interface using the given database and config
func New(db db.DB, fedWorker *concurrency.WorkerPool[messages.FromFederator], tc typeutils.TypeConverter) DB {
	fdb := federatingDB{
		locks:         mutexes.NewMap(-1, -1), // use defaults
		db:            db,
		fedWorker:     fedWorker,
		typeConverter: tc,
	}
	return &fdb
}