import { describe, expect, it } from "vitest";

import {
  fileMediaAsset,
  importImageMedia,
} from "./reducer-media-test-utils";
import { toolcraftReducer } from "./reducer";
import { createState } from "./reducer-test-utils";

describe("toolcraftReducer media transforms", () => {
  it("records image media rotate and flip transforms in runtime history", () => {
    const imported = importImageMedia(createState());

    const rotated = toolcraftReducer(imported, {
      mediaId: imported.mediaAssets[0]?.id ?? "",
      operation: "rotate-right",
      type: "media.transform",
    });
    const flipped = toolcraftReducer(rotated, {
      mediaId: imported.mediaAssets[0]?.id ?? "",
      operation: "flip-horizontal",
      type: "media.transform",
    });
    const undone = toolcraftReducer(flipped, { type: "history.undo" });

    const rotatedAsset = rotated.mediaAssets[0];
    const flippedAsset = flipped.mediaAssets[0];
    const undoneAsset = undone.mediaAssets[0];

    expect(rotatedAsset?.assetKind === "image" ? rotatedAsset.transform : undefined).toEqual({
      rotationDeg: 90,
    });
    expect(flippedAsset?.assetKind === "image" ? flippedAsset.transform : undefined).toEqual({
      flipHorizontal: true,
      rotationDeg: 90,
    });
    expect(flipped.history.undo.at(-1)).toMatchObject({
      before: { mediaAssets: rotated.mediaAssets },
      label: "Transform media",
    });
    expect(undoneAsset?.assetKind === "image" ? undoneAsset.transform : undefined).toEqual({
      rotationDeg: 90,
    });
  });

  it("ignores image transforms for arbitrary file media", () => {
    const imported = toolcraftReducer(createState(), {
      asset: fileMediaAsset(),
      type: "media.import",
    });

    const transformed = toolcraftReducer(imported, {
      mediaId: imported.mediaAssets[0]?.id ?? "",
      operation: "rotate-right",
      type: "media.transform",
    });

    expect(transformed).toBe(imported);
  });
});