import { expect, test } from "bun:test";
import {
  CORE_DESIGN_SYSTEMS,
  validateDesignSystem,
  compileDesignSystem,
} from "@wrnexus/design-system";
import { manualDesign } from "../src/manual.ts";
import { StudioSession } from "../src/session.ts";
import { checkDecisionLocks } from "../src/decisions.ts";

test("manual colors update only their mode and maintain readable contrast and legacy bindings", () => {
  const source = CORE_DESIGN_SYSTEMS.soft;
  const original = JSON.stringify(source);
  const next = manualDesign(source, {
    kind: "color",
    mode: "light",
    name: "primary",
    value: "#000000",
  });
  expect(next.modes!.light!["color.primary"]!.value).toBe("#000000");
  expect(next.modes!.light!["color.primary-contrast"]!.value).toBe("#FFFFFF");
  expect(next.modes!.light!["color.focus"]!.legacy).toBe("color-focus");
  expect(next.modes!.dark).toEqual(source.modes!.dark);
  expect(JSON.stringify(source)).toBe(original);
  expect(validateDesignSystem(next)).toEqual([]);
  expect(() => compileDesignSystem(next, { mode: "light" })).not.toThrow();
  expect(() =>
    manualDesign(source, {
      kind: "color",
      mode: "light",
      name: "primary",
      value: "red; display:none",
    }),
  ).toThrow();
});
test("manual foundations are recoverable and decision locks still detect changes", () => {
  const session = new StudioSession(CORE_DESIGN_SYSTEMS.soft);
  const before = JSON.stringify(session.valid);
  const next = manualDesign(session.valid, { kind: "token", name: "shape.control", value: "8px" });
  expect(checkDecisionLocks(session.valid, next, ["/tokens/shape.control"])).not.toHaveLength(0);
  session.replace(next, "Manual shape");
  expect(session.valid.tokens["shape.control"]!.value).toBe("8px");
  session.undo();
  expect(JSON.stringify(session.valid)).toBe(before);
  session.redo();
  expect(session.valid.tokens["shape.control"]!.value).toBe("8px");
  expect(() =>
    manualDesign(next, { kind: "token", name: "shape.control", value: "-2px" }),
  ).toThrow();
});
test("manual typography, spacing, surfaces and semantic colors validate for all core themes", () => {
  for (const original of Object.values(CORE_DESIGN_SYSTEMS)) {
    let system = structuredClone(original);
    for (const [name, value] of [
      ["type.body", "Arial, sans-serif"],
      ["type.heading", "Georgia, serif"],
      ["space.panel", "24px"],
      ["shape.panel", "12px"],
      ["elevation.panel", "none"],
    ])
      system = manualDesign(system, { kind: "token", name: name!, value: value! });
    for (const mode of ["light", "dark"])
      for (const name of ["secondary", "success", "warning", "danger", "info"] as const)
        system = manualDesign(system, { kind: "color", mode, name, value: "#00677B" });
    expect(validateDesignSystem(system)).toEqual([]);
    expect(() => compileDesignSystem(system, { mode: "dark" })).not.toThrow();
  }
});

test("manual button styles, tilt, pill shapes, default mode and advanced colors compile", () => {
  let system = manualDesign(CORE_DESIGN_SYSTEMS.soft, { kind: "buttonStyle", value: "outline" });
  system = manualDesign(system, { kind: "tilt", value: "none" });
  system = manualDesign(system, { kind: "token", name: "shape.control", value: "999px" });
  system = manualDesign(system, { kind: "mode", value: "dark" });
  system = manualDesign(system, {
    kind: "color",
    mode: "dark",
    name: "primary-contrast",
    value: "#FFFFFF",
  });
  expect(system.defaultMode).toBe("dark");
  expect(system.recipes!.Button!.variants!.at(-1)!.parts.control!.backgroundColor).toBe(
    "transparent",
  );
  expect(system.recipes!.Button!.base!.control!.rotate).toBe("0deg");
  expect(() => compileDesignSystem(system)).not.toThrow();
});

test("manual form saves one atomic revision and rejects locked changes without corrupting drafts", async () => {
  const { Window } = await import("happy-dom");
  const { manualHtml, setupManual } = await import("../src/manual-editor.ts");
  const win = new Window();
  const names = ["document", "HTMLInputElement", "Option"] as const;
  const previous = Object.fromEntries(names.map((name) => [name, (globalThis as any)[name]]));
  try {
    (globalThis as any).document = win.document;
    (globalThis as any).HTMLInputElement = win.HTMLInputElement;
    (globalThis as any).Option = (win as any).Option;
    win.document.body.innerHTML =
      manualHtml + '<select id="preview-mode"><option value="light">light</option></select>';
    const session = new StudioSession(CORE_DESIGN_SYSTEMS.soft);
    let notice = "";
    const editor = setupManual(session, {
      changed: async () => {
        editor.render();
      },
      message: (text) => {
        notice = text;
      },
      mode: () => {},
    });
    editor.render();
    const input = win.document.querySelector('[data-manual-token="shape.control"]') as any;
    input.value = "12";
    (win.document.querySelector('input[type=text][data-manual-color="primary"]') as any).value =
      "#6336AD";
    (win.document.querySelector("[data-manual-apply]") as any).click();
    await Bun.sleep(10);
    expect(session.valid.tokens["shape.control"]!.value).toBe("12px");
    expect(session.valid.modes!.light!["color.primary"]!.value).toBe("#6336AD");
    expect(session.history).toHaveLength(2);
    session.setLocks(["/tokens/shape.control"]);
    editor.render();
    (win.document.querySelector('[data-manual-token="shape.control"]') as any).value = "24";
    (win.document.querySelector("[data-manual-apply]") as any).click();
    await Bun.sleep(10);
    expect(notice).toContain("locked decision");
    expect(session.valid.tokens["shape.control"]!.value).toBe("12px");
    expect(session.diagnostics).toEqual([]);
  } finally {
    for (const name of names) (globalThis as any)[name] = previous[name];
    await win.happyDOM.close();
  }
});