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// spellchecker: words kysely insertable updateable introspector
import {
Generated,
Insertable,
Kysely,
Migration,
Migrator,
SqliteDatabase,
SqliteDialect,
SqliteStatement,
} from "kysely";
import * as sqlite from "@db/sqlite";
class SqliteStatementAdapter implements SqliteStatement {
constructor(public readonly stmt: sqlite.Statement) {}
get reader(): boolean {
return this.stmt.columnNames().length >= 1;
}
all(parameters: readonly unknown[]): unknown[] {
return this.stmt.all(...parameters as sqlite.BindValue[]);
}
iterate(parameters: readonly unknown[]): IterableIterator<unknown> {
return this.stmt.iter(...parameters as sqlite.BindValue[]);
}
run(
parameters: readonly unknown[],
): { changes: number | bigint; lastInsertRowid: number | bigint } {
const { db } = this.stmt;
const totalChangesBefore = db.totalChanges;
const changes = this.stmt.run(...parameters as sqlite.BindValue[]);
return {
changes: totalChangesBefore === db.totalChanges ? 0 : changes,
lastInsertRowid: db.lastInsertRowId,
};
}
}
class SqliteDatabaseAdapter implements SqliteDatabase {
constructor(public readonly db: sqlite.Database) {}
prepare(sql: string): SqliteStatementAdapter {
return new SqliteStatementAdapter(this.db.prepare(sql));
}
close(): void {
this.db.close();
}
}
export class DbError extends Error {
}
interface AwsMessageIdMapTable {
id: Generated<number>;
message_id: string;
aws_message_id: string;
}
interface Database {
aws_message_id_map: AwsMessageIdMapTable;
}
const migrations: Record<string, Migration> = {
"0001-init": {
// deno-lint-ignore no-explicit-any
async up(db: Kysely<any>): Promise<void> {
await db.schema
.createTable("aws_message_id_map")
.addColumn("id", "integer", (col) => col.primaryKey().autoIncrement())
.addColumn("message_id", "text", (col) => col.notNull().unique())
.addColumn("aws_message_id", "text", (col) => col.notNull().unique())
.execute();
for (const column of ["message_id", "aws_message_id"]) {
await db.schema
.createIndex(`aws_message_id_map_${column}`)
.on("aws_message_id_map")
.column(column)
.execute();
}
},
// deno-lint-ignore no-explicit-any
async down(db: Kysely<any>): Promise<void> {
await db.schema.dropTable("aws_message_id_map").execute();
},
},
};
export class DbService {
#db;
#kysely;
#migrator;
constructor(public readonly path: string) {
this.#db = new sqlite.Database(path);
this.#kysely = new Kysely<Database>({
dialect: new SqliteDialect(
{ database: new SqliteDatabaseAdapter(this.#db) },
),
});
this.#migrator = new Migrator({
db: this.#kysely,
provider: {
getMigrations(): Promise<Record<string, Migration>> {
return Promise.resolve(migrations);
},
},
});
}
async migrate(): Promise<void> {
await this.#migrator.migrateToLatest();
}
async addMessageIdMap(
mail: Insertable<AwsMessageIdMapTable>,
): Promise<number> {
const inserted = await this.#kysely.insertInto("aws_message_id_map").values(
mail,
).executeTakeFirstOrThrow();
return Number(inserted.insertId!);
}
async messageIdToAws(messageId: string): Promise<string | null> {
const row = await this.#kysely.selectFrom("aws_message_id_map").where(
"message_id",
"=",
messageId,
).select("aws_message_id").executeTakeFirst();
return row?.aws_message_id ?? null;
}
async messageIdFromAws(awsMessageId: string): Promise<string | null> {
const row = await this.#kysely.selectFrom("aws_message_id_map")
.where("aws_message_id", "=", awsMessageId).select("message_id")
.executeTakeFirst();
return row?.message_id ?? null;
}
}
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