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/*
This file is part of GNU Taler
(C) 2023 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
// @ts-ignore: optional dependency
import type Database from "better-sqlite3";
import {
ResultRow,
Sqlite3Interface,
Sqlite3Statement,
} from "./sqlite3-interface.js";
export async function createNodeSqlite3Impl(): Promise<Sqlite3Interface> {
// @ts-ignore: optional dependency
const bsq = (await import("better-sqlite3")).default;
return {
open(filename: string) {
const internalDbHandle = bsq(filename);
return {
internalDbHandle,
close() {
internalDbHandle.close();
},
prepare(stmtStr): Sqlite3Statement {
const stmtHandle = internalDbHandle.prepare(stmtStr);
return {
internalStatement: stmtHandle,
getAll(params): ResultRow[] {
let res: ResultRow[];
if (params === undefined) {
res = stmtHandle.all() as ResultRow[];
} else {
res = stmtHandle.all(params) as ResultRow[];
}
return res;
},
getFirst(params): ResultRow | undefined {
let res: ResultRow | undefined;
if (params === undefined) {
res = stmtHandle.get() as ResultRow | undefined;
} else {
res = stmtHandle.get(params) as ResultRow | undefined;
}
return res;
},
run(params) {
const myParams = [];
if (params !== undefined) {
myParams.push(params);
}
// The better-sqlite3 library doesn't like it we pass
// undefined directly.
let res: Database.RunResult;
if (params !== undefined) {
res = stmtHandle.run(params);
} else {
res = stmtHandle.run();
}
return {
lastInsertRowid: res.lastInsertRowid,
};
},
};
},
exec(sqlStr): void {
internalDbHandle.exec(sqlStr);
},
};
},
};
}
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