/**
 * Copyright (c) OpenLens Authors. All rights reserved.
 * Licensed under MIT License. See LICENSE in root directory for more information.
 */

import semver, { SemVer } from "semver";
import { appSemVer, isProduction } from "../common/vars";
import type { LensExtensionManifest } from "./lens-extension";

export function rawIsCompatibleExtension(version: SemVer): (manifest: LensExtensionManifest) => boolean {
  const { major, minor, patch, prerelease: oldPrelease } = version;
  let prerelease = "";

  if (oldPrelease.length > 0) {
    const [first] = oldPrelease;

    if (first === "alpha" || first === "beta" || first === "rc") {
      /**
       * Strip the build IDs and "latest" prerelease tag as that is not really
       * a part of API version
       */
      prerelease = `-${oldPrelease.slice(0, 2).join(".")}`;
    }
  }

  /**
   * We unfortunately have to format as string because the constructor only
   * takes an instance or a string.
   */
  const strippedVersion = new SemVer(`${major}.${minor}.${patch}${prerelease}`, { includePrerelease: true });

  return (manifest: LensExtensionManifest): boolean => {
    if (manifest.engines?.lens) {
      /**
       * include Lens's prerelease tag in the matching so the extension's
       * compatibility is not limited by it
       */
      return semver.satisfies(strippedVersion, manifest.engines.lens, { includePrerelease: true });
    }

    return false;
  };
}

export const isCompatibleExtension = rawIsCompatibleExtension(appSemVer);

export function isCompatibleBundledExtension(manifest: LensExtensionManifest): boolean {
  return !isProduction || manifest.version === appSemVer.raw;
}