feat: version 2 beta

adapters/postgres/database.ts

@@ -0,0 +1,36 @@
+import postgres, { type Sql } from "postgres";
+
+import { PostgresConnection } from "./connection.ts";
+
+export class PostgresDatabase {
+  readonly #connection: PostgresConnection;
+
+  #sql?: Sql;
+
+  constructor(connection: PostgresConnection) {
+    this.#connection = connection;
+  }
+
+  get sql(): Sql {
+    if (this.#sql === undefined) {
+      const connection = this.#connection;
+      if (Array.isArray(connection)) {
+        const [urlOrOptions, option] = connection;
+        if (typeof urlOrOptions === "string") {
+          this.#sql = postgres(urlOrOptions, option);
+        } else {
+          this.#sql = postgres(urlOrOptions);
+        }
+      } else if ("options" in connection) {
+        this.#sql = connection;
+      } else {
+        this.#sql = connection();
+      }
+    }
+    return this.#sql;
+  }
+}
+
+export type DatabaseAccessor = {
+  sql: Sql;
+};