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// Copyright 2020 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package postgres
import (
"context"
"database/sql"
"fmt"
"github.com/lib/pq"
"github.com/matrix-org/dendrite/eduserver/api"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/syncapi/storage/tables"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/matrix-org/gomatrixserverlib"
)
const receiptsSchema = `
CREATE SEQUENCE IF NOT EXISTS syncapi_receipt_id;
-- Stores data about receipts
CREATE TABLE IF NOT EXISTS syncapi_receipts (
-- The ID
id BIGINT PRIMARY KEY DEFAULT nextval('syncapi_receipt_id'),
room_id TEXT NOT NULL,
receipt_type TEXT NOT NULL,
user_id TEXT NOT NULL,
event_id TEXT NOT NULL,
receipt_ts BIGINT NOT NULL,
CONSTRAINT syncapi_receipts_unique UNIQUE (room_id, receipt_type, user_id)
);
CREATE INDEX IF NOT EXISTS syncapi_receipts_room_id ON syncapi_receipts(room_id);
`
const upsertReceipt = "" +
"INSERT INTO syncapi_receipts" +
" (room_id, receipt_type, user_id, event_id, receipt_ts)" +
" VALUES ($1, $2, $3, $4, $5)" +
" ON CONFLICT (room_id, receipt_type, user_id)" +
" DO UPDATE SET id = nextval('syncapi_receipt_id'), event_id = $4, receipt_ts = $5" +
" RETURNING id"
const selectRoomReceipts = "" +
"SELECT room_id, receipt_type, user_id, event_id, receipt_ts" +
" FROM syncapi_receipts" +
" WHERE room_id = ANY($1) AND id > $2"
const selectMaxReceiptIDSQL = "" +
"SELECT MAX(id) FROM syncapi_receipts"
type receiptStatements struct {
db *sql.DB
upsertReceipt *sql.Stmt
selectRoomReceipts *sql.Stmt
selectMaxReceiptID *sql.Stmt
}
func NewPostgresReceiptsTable(db *sql.DB) (tables.Receipts, error) {
_, err := db.Exec(receiptsSchema)
if err != nil {
return nil, err
}
r := &receiptStatements{
db: db,
}
if r.upsertReceipt, err = db.Prepare(upsertReceipt); err != nil {
return nil, fmt.Errorf("unable to prepare upsertReceipt statement: %w", err)
}
if r.selectRoomReceipts, err = db.Prepare(selectRoomReceipts); err != nil {
return nil, fmt.Errorf("unable to prepare selectRoomReceipts statement: %w", err)
}
if r.selectMaxReceiptID, err = db.Prepare(selectMaxReceiptIDSQL); err != nil {
return nil, fmt.Errorf("unable to prepare selectRoomReceipts statement: %w", err)
}
return r, nil
}
func (r *receiptStatements) UpsertReceipt(ctx context.Context, txn *sql.Tx, roomId, receiptType, userId, eventId string, timestamp gomatrixserverlib.Timestamp) (pos types.StreamPosition, err error) {
stmt := sqlutil.TxStmt(txn, r.upsertReceipt)
err = stmt.QueryRowContext(ctx, roomId, receiptType, userId, eventId, timestamp).Scan(&pos)
return
}
func (r *receiptStatements) SelectRoomReceiptsAfter(ctx context.Context, roomIDs []string, streamPos types.StreamPosition) ([]api.OutputReceiptEvent, error) {
rows, err := r.selectRoomReceipts.QueryContext(ctx, pq.Array(roomIDs), streamPos)
if err != nil {
return nil, fmt.Errorf("unable to query room receipts: %w", err)
}
defer internal.CloseAndLogIfError(ctx, rows, "SelectRoomReceiptsAfter: rows.close() failed")
var res []api.OutputReceiptEvent
for rows.Next() {
r := api.OutputReceiptEvent{}
err = rows.Scan(&r.RoomID, &r.Type, &r.UserID, &r.EventID, &r.Timestamp)
if err != nil {
return res, fmt.Errorf("unable to scan row to api.Receipts: %w", err)
}
res = append(res, r)
}
return res, rows.Err()
}
func (s *receiptStatements) SelectMaxReceiptID(
ctx context.Context, txn *sql.Tx,
) (id int64, err error) {
var nullableID sql.NullInt64
stmt := sqlutil.TxStmt(txn, s.selectMaxReceiptID)
err = stmt.QueryRowContext(ctx).Scan(&nullableID)
if nullableID.Valid {
id = nullableID.Int64
}
return
}
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