support setting for writing supabase migration files (#427)

e2e-tests/supabase_migrations.spec.ts

@@ -0,0 +1,61 @@
+import { expect } from "@playwright/test";
+import { test } from "./helpers/test_helper";
+import fs from "fs-extra";
+import path from "path";
+
+test("supabase migrations", async ({ po }) => {
+  await po.setUp({ autoApprove: true });
+  await po.sendPrompt("tc=add-supabase");
+
+  // Connect to Supabase
+  await po.page.getByText("Set up supabase").click();
+  await po.clickConnectSupabaseButton();
+  await po.clickBackButton();
+
+  const appPath = await po.getCurrentAppPath();
+  const migrationsDir = path.join(appPath, "supabase", "migrations");
+
+  // --- SCENARIO 1: OFF BY DEFAULT ---
+  await po.sendPrompt("tc=execute-sql-1");
+  await po.waitForChatCompletion();
+
+  expect(fs.existsSync(migrationsDir)).toBe(false);
+
+  // --- SCENARIO 2: TOGGLE ON ---
+  // Go to settings to find the Supabase integration
+  await po.goToSettingsTab();
+  const migrationsSwitch = po.page.locator("#supabase-migrations");
+  await migrationsSwitch.click();
+  await po.goToChatTab();
+
+  // Send a prompt that triggers a migration
+  await po.sendPrompt("tc=execute-sql-1");
+  await po.waitForChatCompletion();
+
+  let files: string[] = [];
+  await expect(async () => {
+    // Check that one migration file was created
+    files = await fs.readdir(migrationsDir);
+    expect(files).toHaveLength(1);
+  }).toPass();
+
+  expect(files[0]).toMatch(/0000_create_users_table\.sql/);
+  expect(await fs.readFile(path.join(migrationsDir, files[0]), "utf8")).toEqual(
+    "CREATE TABLE users (id serial primary key);",
+  );
+
+  // Send a prompt that triggers a migration
+  await po.sendPrompt("tc=execute-sql-no-description");
+  await po.waitForChatCompletion();
+
+  await expect(async () => {
+    // Check that one migration file was created
+    files = await fs.readdir(migrationsDir);
+    expect(files).toHaveLength(2);
+  }).toPass();
+
+  expect(files[1]).toMatch(/0001_\w+_\w+_\w+\.sql/);
+  expect(await fs.readFile(path.join(migrationsDir, files[1]), "utf8")).toEqual(
+    "DROP TABLE users;",
+  );
+});