import {
  fetchRemoteMedia,
  MAX_IMAGE_BYTES,
  saveMediaBuffer,
} from "openclaw/plugin-sdk/media-runtime";
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
import { downloadMedia, extractImageBlocks } from "./media.js";

vi.mock("openclaw/plugin-sdk/media-runtime", () => ({
  MAX_IMAGE_BYTES: 6 * 1024 * 1024,
  fetchRemoteMedia: vi.fn(),
  saveMediaBuffer: vi.fn(),
}));

const fetchRemoteMediaMock = vi.mocked(fetchRemoteMedia);
const saveMediaBufferMock = vi.mocked(saveMediaBuffer);

describe("tlon monitor media", () => {
  beforeEach(() => {
    vi.clearAllMocks();
    vi.spyOn(console, "error").mockImplementation(() => undefined);
    vi.spyOn(console, "warn").mockImplementation(() => undefined);
  });

  afterEach(() => {
    vi.restoreAllMocks();
  });

  it("caps extracted images at eight per message", async () => {
    const content = Array.from({ length: 10 }, (_, index) => ({
      block: { image: { src: `https://example.com/${index}.png`, alt: `image-${index}` } },
    }));

    const images = extractImageBlocks(content);

    expect(images).toHaveLength(8);
    expect(images.map((image) => image.url)).toEqual(
      Array.from({ length: 8 }, (_, index) => `https://example.com/${index}.png`),
    );
  });

  it("stores fetched media through the shared inbound media store with the image cap", async () => {
    fetchRemoteMediaMock.mockResolvedValue({
      buffer: Buffer.from("image-data"),
      contentType: "image/png",
      fileName: "photo.png",
    });
    saveMediaBufferMock.mockResolvedValue({
      id: "photo---uuid.png",
      path: "/tmp/openclaw/media/inbound/photo---uuid.png",
      size: "image-data".length,
      contentType: "image/png",
    });

    const result = await downloadMedia("https://example.com/photo.png");

    expect(fetchRemoteMediaMock).toHaveBeenCalledWith(
      expect.objectContaining({
        url: "https://example.com/photo.png",
        maxBytes: MAX_IMAGE_BYTES,
        readIdleTimeoutMs: 30_000,
        requestInit: { method: "GET" },
      }),
    );
    expect(saveMediaBufferMock).toHaveBeenCalledWith(
      Buffer.from("image-data"),
      "image/png",
      "inbound",
      MAX_IMAGE_BYTES,
      "photo.png",
    );
    expect(result).toEqual({
      localPath: "/tmp/openclaw/media/inbound/photo---uuid.png",
      contentType: "image/png",
      originalUrl: "https://example.com/photo.png",
    });
  });

  it("returns null when the fetch exceeds the image cap", async () => {
    fetchRemoteMediaMock.mockRejectedValue(
      new Error(
        `Failed to fetch media from https://example.com/photo.png: payload exceeds maxBytes ${MAX_IMAGE_BYTES}`,
      ),
    );

    const result = await downloadMedia("https://example.com/photo.png");

    expect(result).toBeNull();
    expect(saveMediaBufferMock).not.toHaveBeenCalled();
  });
});