lot more stuff

src/services/postgres/postgres.instance.ts

@@ -0,0 +1,60 @@
+import knex, { type Knex } from 'knex';
+
+import { Services } from '../../utils/service.ts';
+
+import type { PostgresDatabase, PostgresRole } from './postgres.types.ts';
+
+type PostgresInstanceOptions = {
+  services: Services;
+  host: string;
+  port?: number;
+  user: string;
+  password: string;
+};
+
+class PostgresInstance {
+  #db: Knex;
+
+  constructor(options: PostgresInstanceOptions) {
+    this.#db = knex({
+      client: 'pg',
+      connection: {
+        host: process.env.FORCE_PG_HOST ?? options.host,
+        user: process.env.FORCE_PG_USER ?? options.user,
+        password: process.env.FORCE_PG_PASSWORD ?? options.password,
+        port: process.env.FORCE_PG_PORT ? parseInt(process.env.FORCE_PG_PORT) : options.port,
+      },
+    });
+  }
+
+  public ping = async () => {
+    try {
+      await this.#db.raw('SELECT 1');
+      return true;
+    } catch {
+      return false;
+    }
+  };
+
+  public upsertRole = async (role: PostgresRole) => {
+    const existingRole = await this.#db.raw('SELECT 1 FROM pg_roles WHERE rolname = ?', [role.name]);
+
+    if (existingRole.rows.length === 0) {
+      await this.#db.raw(`CREATE ROLE ${role.name} WITH LOGIN PASSWORD '${role.password}'`);
+    } else {
+      await this.#db.raw(`ALTER ROLE ${role.name} WITH PASSWORD '${role.password}'`);
+    }
+  };
+
+  public upsertDatabase = async (database: PostgresDatabase) => {
+    const existingDatabase = await this.#db.raw('SELECT * FROM pg_database WHERE datname = ?', [database.name]);
+
+    if (existingDatabase.rows.length === 0) {
+      await this.#db.raw(`CREATE DATABASE ${database.name} OWNER ${database.owner}`);
+    } else {
+      await this.#db.raw(`ALTER DATABASE ${database.name} OWNER TO ${database.owner}`);
+    }
+  };
+}
+
+export { PostgresInstance, type PostgresInstanceOptions };