[PM-5571] Migrate enableDDG to state provider framework (#8384)

Migrate enableDuckDuckGo to state provider framework.

libs/common/src/state-migrations/migrations/48-move-ddg-to-state-provider.spec.ts

@@ -0,0 +1,47 @@
+import { runMigrator } from "../migration-helper.spec";
+
+import { MoveDdgToStateProviderMigrator } from "./48-move-ddg-to-state-provider";
+
+describe("MoveDdgToStateProviderMigrator", () => {
+  const migrator = new MoveDdgToStateProviderMigrator(47, 48);
+
+  it("migrate", async () => {
+    const output = await runMigrator(migrator, {
+      global: {
+        enableDuckDuckGoBrowserIntegration: true,
+        otherStuff: "otherStuff1",
+      },
+      otherStuff: "otherStuff2",
+    });
+
+    expect(output).toEqual({
+      global_autofillSettings_enableDuckDuckGoBrowserIntegration: true,
+      global: {
+        otherStuff: "otherStuff1",
+      },
+      otherStuff: "otherStuff2",
+    });
+  });
+
+  it("rollback", async () => {
+    const output = await runMigrator(
+      migrator,
+      {
+        global_autofillSettings_enableDuckDuckGoBrowserIntegration: true,
+        global: {
+          otherStuff: "otherStuff1",
+        },
+        otherStuff: "otherStuff2",
+      },
+      "rollback",
+    );
+
+    expect(output).toEqual({
+      global: {
+        enableDuckDuckGoBrowserIntegration: true,
+        otherStuff: "otherStuff1",
+      },
+      otherStuff: "otherStuff2",
+    });
+  });
+});

libs/common/src/state-migrations/migrations/48-move-ddg-to-state-provider.ts

@@ -0,0 +1,40 @@
+import { KeyDefinitionLike, MigrationHelper } from "../migration-helper";
+import { Migrator } from "../migrator";
+
+type ExpectedGlobal = {
+  enableDuckDuckGoBrowserIntegration?: boolean;
+};
+
+export const DDG_KEY: KeyDefinitionLike = {
+  key: "enableDuckDuckGoBrowserIntegration",
+  stateDefinition: {
+    name: "autofillSettings",
+  },
+};
+
+export class MoveDdgToStateProviderMigrator extends Migrator<47, 48> {
+  async migrate(helper: MigrationHelper): Promise<void> {
+    // global state
+    const global = await helper.get<ExpectedGlobal>("global");
+    if (global?.enableDuckDuckGoBrowserIntegration == null) {
+      return;
+    }
+
+    await helper.setToGlobal(DDG_KEY, global.enableDuckDuckGoBrowserIntegration);
+    delete global.enableDuckDuckGoBrowserIntegration;
+    await helper.set("global", global);
+  }
+
+  async rollback(helper: MigrationHelper): Promise<void> {
+    const enableDdg = await helper.getFromGlobal<boolean>(DDG_KEY);
+
+    if (!enableDdg) {
+      return;
+    }
+
+    const global = (await helper.get<ExpectedGlobal>("global")) ?? {};
+    global.enableDuckDuckGoBrowserIntegration = enableDdg;
+    await helper.set("global", global);
+    await helper.removeFromGlobal(DDG_KEY);
+  }
+}