import { describe, it, mock } from "node:test";
import assert from "node:assert";

let minimumPackageAgeHours = 24;
let ecosystem = "js";

mock.module("../config/settings.js", {
  namedExports: {
    getMinimumPackageAgeHours: () => minimumPackageAgeHours,
    getEcoSystem: () => ecosystem,
    getMalwareListBaseUrl: () => "https://malware-list.aikido.dev",
    ECOSYSTEM_JS: "js",
    ECOSYSTEM_PY: "py",
  },
});

const { buildNewPackagesDatabase } = await import(
  "./newPackagesDatabaseBuilder.js"
);

function hoursAgo(hours) {
  return Math.floor((Date.now() - hours * 3600 * 1000) / 1000);
}

describe("buildNewPackagesDatabase", () => {
  it("returns an object with isNewlyReleasedPackage", () => {
    const db = buildNewPackagesDatabase([]);
    assert.strictEqual(typeof db.isNewlyReleasedPackage, "function");
  });

  describe("isNewlyReleasedPackage", () => {
    it("returns true for a package released within the age threshold", () => {
      const db = buildNewPackagesDatabase([
        { package_name: "foo", version: "1.0.0", released_on: hoursAgo(1) },
      ]);

      assert.strictEqual(db.isNewlyReleasedPackage("foo", "1.0.0"), true);
    });

    it("returns false for a package released outside the age threshold", () => {
      const db = buildNewPackagesDatabase([
        { package_name: "foo", version: "1.0.0", released_on: hoursAgo(48) },
      ]);

      assert.strictEqual(db.isNewlyReleasedPackage("foo", "1.0.0"), false);
    });

    it("returns false for a package not in the list", () => {
      const db = buildNewPackagesDatabase([]);

      assert.strictEqual(db.isNewlyReleasedPackage("not-there", "1.0.0"), false);
    });

    it("returns false when name or version is undefined", () => {
      const db = buildNewPackagesDatabase([
        { package_name: "foo", version: "1.0.0", released_on: hoursAgo(1) },
      ]);

      assert.strictEqual(db.isNewlyReleasedPackage(undefined, "1.0.0"), false);
      assert.strictEqual(db.isNewlyReleasedPackage("foo", undefined), false);
    });

    it("returns false for a known package but different version", () => {
      const db = buildNewPackagesDatabase([
        { package_name: "foo", version: "2.0.0", released_on: hoursAgo(1) },
      ]);

      assert.strictEqual(db.isNewlyReleasedPackage("foo", "1.0.0"), false);
    });

    it("filters by source when source metadata is present", () => {
      const db = buildNewPackagesDatabase([
        { source: "pypi", package_name: "foo", version: "1.0.0", released_on: hoursAgo(1) },
        { source: "npm", package_name: "bar", version: "1.0.0", released_on: hoursAgo(1) },
      ]);

      // ecosystem is "js" → feed source is "npm"
      assert.strictEqual(db.isNewlyReleasedPackage("foo", "1.0.0"), false);
      assert.strictEqual(db.isNewlyReleasedPackage("bar", "1.0.0"), true);
    });

    it("matches regardless of source case", () => {
      const db = buildNewPackagesDatabase([
        { source: "NPM", package_name: "foo", version: "1.0.0", released_on: hoursAgo(1) },
      ]);

      assert.strictEqual(db.isNewlyReleasedPackage("foo", "1.0.0"), true);
    });

    it("matches entries with no source field", () => {
      const db = buildNewPackagesDatabase([
        { package_name: "foo", version: "1.0.0", released_on: hoursAgo(1) },
      ]);

      assert.strictEqual(db.isNewlyReleasedPackage("foo", "1.0.0"), true);
    });

    it("respects a custom minimumPackageAgeHours threshold", () => {
      minimumPackageAgeHours = 168; // 7 days

      const db = buildNewPackagesDatabase([
        { package_name: "foo", version: "1.0.0", released_on: hoursAgo(100) },
      ]);

      assert.strictEqual(db.isNewlyReleasedPackage("foo", "1.0.0"), true);

      minimumPackageAgeHours = 24; // reset
    });

    it("matches underscore request names against hyphen feed names for python", () => {
      ecosystem = "py";

      const db = buildNewPackagesDatabase([
        { source: "pypi", package_name: "foo-bar", version: "1.0.0", released_on: hoursAgo(1) },
      ]);

      assert.strictEqual(db.isNewlyReleasedPackage("foo_bar", "1.0.0"), true);

      ecosystem = "js";
    });

    it("matches hyphen request names against underscore feed names for python", () => {
      ecosystem = "py";

      const db = buildNewPackagesDatabase([
        { source: "pypi", package_name: "foo_bar", version: "1.0.0", released_on: hoursAgo(1) },
      ]);

      assert.strictEqual(db.isNewlyReleasedPackage("foo-bar", "1.0.0"), true);

      ecosystem = "js";
    });

    it("matches dot request names against hyphen feed names for python", () => {
      ecosystem = "py";

      const db = buildNewPackagesDatabase([
        { source: "pypi", package_name: "foo-bar", version: "1.0.0", released_on: hoursAgo(1) },
      ]);

      assert.strictEqual(db.isNewlyReleasedPackage("foo.bar", "1.0.0"), true);

      ecosystem = "js";
    });

    it("matches underscore request names against dot feed names for python", () => {
      ecosystem = "py";

      const db = buildNewPackagesDatabase([
        { source: "pypi", package_name: "foo.bar", version: "1.0.0", released_on: hoursAgo(1) },
      ]);

      assert.strictEqual(db.isNewlyReleasedPackage("foo_bar", "1.0.0"), true);

      ecosystem = "js";
    });

  });
});