import { describe, expect, test } from "bun:test";
import { createInitialAppState } from "@editor/initial-state";
import { createAppStore } from "@editor/store";
import { createCommandRegistry } from "./registry";
import { viewportPanCommand } from "./viewport";

describe("command dispatcher", () => {
  test("throws for unknown commands", () => {
    const store = createAppStore(createInitialAppState("Test"), createCommandRegistry([]));
    expect(() => store.dispatch("missing" as never, undefined as never)).toThrow("Unknown command: missing");
  });

  test("dispatch applies command result to store", () => {
    const store = createAppStore(createInitialAppState("Test"), createCommandRegistry([viewportPanCommand]));
    store.dispatch("viewport.pan", { delta: { x: 3, y: 7 } });
    expect(store.getState().editor.viewport.center).toEqual({ x: 3, y: 7 });
  });
});