feat: move postgres as part of the main repo

app/src/data/connection/postgres/PostgresJsConnection.ts

@@ -0,0 +1,41 @@
+import { Kysely } from "kysely";
+import { PostgresIntrospector } from "./PostgresIntrospector";
+import { PostgresConnection, plugins } from "./PostgresConnection";
+import { customIntrospector } from "bknd";
+import { PostgresJSDialect } from "kysely-postgres-js";
+import $postgresJs, { type Sql, type Options, type PostgresType } from "postgres";
+
+export type PostgresJsConfig = Options<Record<string, PostgresType>>;
+
+export class PostgresJsConnection extends PostgresConnection<$postgresJs.Sql> {
+   override name = "postgres-js";
+
+   constructor(opts: { postgres: $postgresJs.Sql }) {
+      const kysely = new Kysely({
+         dialect: customIntrospector(PostgresJSDialect, PostgresIntrospector, {
+            excludeTables: [],
+         }).create({ postgres: opts.postgres }),
+         plugins,
+      });
+
+      super(kysely);
+      this.client = opts.postgres;
+   }
+
+   override async close(): Promise<void> {
+      await this.client.end();
+   }
+}
+
+export function postgresJs(
+   connectionString: string,
+   config?: PostgresJsConfig,
+): PostgresJsConnection;
+export function postgresJs(config: PostgresJsConfig): PostgresJsConnection;
+export function postgresJs(
+   first: PostgresJsConfig | string,
+   second?: PostgresJsConfig,
+): PostgresJsConnection {
+   const postgres = typeof first === "string" ? $postgresJs(first, second) : $postgresJs(first);
+   return new PostgresJsConnection({ postgres });
+}