import { expect, test } from "bun:test";
import { defineBlock, object, string } from "@wrnexus/blocks";
import { createBuilderKit } from "../src/kit.ts";

const block = defineBlock({
  manifest: { type: "custom.note", version: 1, name: { key: "note", fallback: "Note" }, icon: "note", category: "content",
    props: object({ text: string({ min: 1 }) }), styles: object({}), slots: {} },
  create: ({ id }: { id(): string }) => ({ id: id(), type: "custom.note", version: 1, props: { text: "Hello" }, styles: {}, slots: {} }),
});
test("trusted custom blocks and presets expose independent instances and explicit metadata", () => {
  let next = 0; const context = { id: () => String(++next) };
  const kit = createBuilderKit({ blocks: [block], presets: [{ id: "note", name: { key: "preset.note", fallback: "Note" }, icon: "note", create: block.create }] });
  expect(kit.blocks()[0].manifest.name.fallback).toBe("Note");
  expect(kit.presets()[0].id).toBe("note");
  const first = kit.createBlock("custom.note", context), second = kit.createPreset("note", context);
  first.props.text = "Changed";
  expect(second.props.text).toBe("Hello");
  expect(first.id).not.toBe(second.id);
  expect(Object.isFrozen(kit)).toBe(true);
  expect(() => kit.validateProps("custom.note", { text: "" })).toThrow();
  expect(() => kit.createBlock("missing.block", context)).toThrow();
});
test("duplicate registration and invalid factories fail before insertion", () => {
  expect(() => createBuilderKit({ blocks: [block, block] })).toThrow();
  const preset = { id: "note", name: { key: "note", fallback: "Note" }, icon: "note", create: block.create };
  expect(() => createBuilderKit({ blocks: [block], presets: [preset, preset] })).toThrow();
  const invalid = createBuilderKit({ blocks: [{ ...block, create: () => ({ ...block.create({ id: () => "id" }), props: { text: "" } }) }] });
  expect(() => invalid.createBlock("custom.note", { id: () => "id" })).toThrow();
  const wrong = createBuilderKit({ blocks: [{ ...block, create: () => ({ ...block.create({ id: () => "id" }), type: "custom.other" }) }] });
  expect(() => wrong.createBlock("custom.note", { id: () => "id" })).toThrow();
});