// Extension import boundary checker tests cover bounded source reads.
import { mkdirSync, writeFileSync } from "node:fs";
import path from "node:path";
import { afterEach, describe, expect, it } from "vitest";
import { createExtensionImportBoundaryChecker } from "../../scripts/lib/extension-import-boundary-checker.mts";
import { listGeneratedExtensionAssetSources } from "../../scripts/lib/static-extension-assets.mts";
import { useAutoCleanupTempDirTracker } from "../helpers/temp-dir.js";

const tempDirs = useAutoCleanupTempDirTracker(afterEach);

describe("extension import boundary checker", () => {
  it("rejects oversized TypeScript source files before scanning imports", async () => {
    const root = tempDirs.make("openclaw-extension-boundary-");
    const sourcePath = path.join(root, "large.ts");
    writeFileSync(sourcePath, "x".repeat(33), "utf8");
    const checker = createExtensionImportBoundaryChecker({
      boundaryLabel: "test",
      cleanMessage: "clean",
      inventoryTitle: "inventory",
      maxSourceBytes: 32,
      roots: [path.relative(process.cwd(), root)],
    });

    await expect(checker.collectInventory()).rejects.toThrow(
      "extension import boundary source file exceeds 32 byte limit",
    );
  });

  it("skips declared generated bundles without admitting oversized handwritten JavaScript", async () => {
    const root = tempDirs.make("openclaw-extension-boundary-");
    const pluginRoot = path.join(root, "extensions", "generated-plugin");
    const assetRoot = path.join(pluginRoot, "assets");
    const generatedPath = path.join(assetRoot, "generated.js");
    const handwrittenPath = path.join(assetRoot, "handwritten.js");
    const oversizedBytes = 2 * 1024 * 1024 + 1;
    mkdirSync(assetRoot, { recursive: true });
    writeFileSync(
      path.join(pluginRoot, "package.json"),
      JSON.stringify({
        openclaw: {
          assetScripts: { build: "node generate.mjs" },
          build: {
            staticAssets: [{ source: "./assets/generated.js", output: "assets/generated.js" }],
          },
        },
      }),
      "utf8",
    );

    // Match CI ordering: the build materializes its declared bundle before source guards run.
    writeFileSync(generatedPath, "/".repeat(oversizedBytes), "utf8");
    const generatedSources = new Set(
      listGeneratedExtensionAssetSources({ rootDir: root }).map((source) =>
        path.relative(process.cwd(), path.join(root, source)).replaceAll(path.sep, "/"),
      ),
    );
    const createChecker = () =>
      createExtensionImportBoundaryChecker({
        boundaryLabel: "test",
        cleanMessage: "clean",
        inventoryTitle: "inventory",
        roots: [path.relative(process.cwd(), path.join(root, "extensions"))],
        shouldSkipFile: (relativeFile: string) => generatedSources.has(relativeFile),
        sourceOptions: { fileExtensions: [".js"] },
      });

    await expect(createChecker().collectInventory()).resolves.toEqual([]);

    const targetPath = path.join(process.cwd(), "extensions", "security-proof", "private.js");
    const specifier = path.relative(assetRoot, targetPath).replaceAll(path.sep, "/");
    writeFileSync(
      handwrittenPath,
      "import " + JSON.stringify(specifier) + ";\n" + "/".repeat(oversizedBytes),
      "utf8",
    );
    await expect(createChecker().collectInventory()).rejects.toThrow(
      "extension import boundary source file exceeds 2097152 byte limit",
    );
  });

  it.each([
    {
      name: "comment-obscured side-effect import",
      createSource: (specifier: string) => "import /* gap */ " + JSON.stringify(specifier),
      kind: "import",
    },
    {
      name: "dynamic import with attributes",
      createSource: (specifier: string) =>
        "import /* gap */ (" + JSON.stringify(specifier) + ', { with: { type: "json" } })',
      kind: "dynamic-import",
    },
    {
      name: "CommonJS require",
      createSource: (specifier: string) => "require(" + JSON.stringify(specifier) + ")",
      kind: "commonjs-require",
    },
    {
      name: "import.meta URL",
      createSource: (specifier: string) =>
        "new URL(" + JSON.stringify(specifier) + ", import.meta.url)",
      kind: "import-meta-url",
    },
    {
      name: "comment-obscured namespace export",
      createSource: (specifier: string) =>
        "export /* gap */ * /* gap */ as privateModule from " + JSON.stringify(specifier),
      kind: "export",
    },
    {
      name: "escaped plugin-path separator",
      createSource: (specifier: string) =>
        "import " + JSON.stringify(specifier).replace("extensions/", "extensions\\/"),
      kind: "import",
    },
    {
      name: "Unicode-escaped plugin-path character",
      createSource: (specifier: string) =>
        "import " + JSON.stringify(specifier).replace("extensions/", "exten\\u0073ions/"),
      kind: "import",
    },
    {
      name: "hex-escaped plugin-path character",
      createSource: (specifier: string) =>
        "import " + JSON.stringify(specifier).replace("extensions/", "\\x65xtensions/"),
      kind: "import",
    },
    {
      name: "plugin-path line continuation",
      createSource: (specifier: string) =>
        "import " + JSON.stringify(specifier).replace("extensions/", "exten\\\nsions/"),
      kind: "import",
    },
  ])("rejects $name crossing the real plugin boundary", async ({ createSource, kind }) => {
    const root = tempDirs.make("openclaw-extension-boundary-");
    const sourcePath = path.join(root, "guarded.ts");
    const targetPath = path.join(process.cwd(), "extensions", "security-proof", "private.js");
    const specifier = path.relative(root, targetPath).split(path.sep).join("/");
    writeFileSync(sourcePath, createSource(specifier), "utf8");
    const checker = createExtensionImportBoundaryChecker({
      boundaryLabel: "test",
      cleanMessage: "clean",
      inventoryTitle: "inventory",
      roots: [path.relative(process.cwd(), root)],
      skipSourcesWithoutBundledPluginPrefix: true,
    });

    await expect(checker.collectInventory()).resolves.toEqual([
      expect.objectContaining({
        kind,
        resolvedPath: "extensions/security-proof/private.js",
        specifier,
      }),
    ]);
  });
});