{
  "version": 3,
  "sources": ["../../../../src/packages/node.resolver/index.ts"],
  "sourcesContent": ["import type { FetchFromRegistry } from '../fetching-types/index.ts';\nimport semver from 'semver';\nimport versionSelectorType from 'version-selector-type';\n\ntype NodeVersion = {\n  version: string;\n  lts: false | string;\n};\n\nconst SEMVER_OPTS = {\n  includePrerelease: true,\n  loose: true,\n};\n\nexport async function resolveNodeVersion(\n  fetch: FetchFromRegistry,\n  versionSpec: string,\n  nodeMirrorBaseUrl?: string\n): Promise<string | null> {\n  const allVersions = await fetchAllVersions(fetch, nodeMirrorBaseUrl);\n\n  if (versionSpec === 'latest') {\n    return allVersions[0]?.version ?? null;\n  }\n\n  const { versions, versionRange } = filterVersions(allVersions, versionSpec);\n\n  return semver.maxSatisfying(versions, versionRange, SEMVER_OPTS) ?? null;\n}\n\nexport async function resolveNodeVersions(\n  fetch: FetchFromRegistry,\n  versionSpec?: string,\n  nodeMirrorBaseUrl?: string\n): Promise<string[]> {\n  const allVersions = await fetchAllVersions(fetch, nodeMirrorBaseUrl);\n  if (typeof versionSpec === 'undefined') {\n    return allVersions.map(({ version }) => version);\n  }\n\n  if (versionSpec === 'latest') {\n    const version = allVersions[0]?.version;\n\n    return typeof version === 'string' ? [version] : [];\n  }\n\n  const { versions, versionRange } = filterVersions(allVersions, versionSpec);\n\n  return versions.filter((version): boolean => {\n    return semver.satisfies(version, versionRange, SEMVER_OPTS);\n  });\n}\n\nasync function fetchAllVersions(\n  fetch: FetchFromRegistry,\n  nodeMirrorBaseUrl?: string\n): Promise<NodeVersion[]> {\n  const response = await fetch(\n    `${nodeMirrorBaseUrl ?? 'https://nodejs.org/download/release/'}index.json`\n  );\n\n  return ((await response.json()) as NodeVersion[]).map(({ version, lts }) => ({\n    version: version.substring(1),\n    lts,\n  }));\n}\n\nfunction filterVersions(\n  versions: NodeVersion[],\n  versionSelector: string\n): { versions: string[]; versionRange: string } {\n  if (versionSelector === 'lts') {\n    return {\n      versions: versions\n        .filter(({ lts }) => lts !== false)\n        .map(({ version }) => version),\n      versionRange: '*',\n    };\n  }\n\n  const vst = versionSelectorType(versionSelector);\n\n  if (vst?.type === 'tag') {\n    const wantedLtsVersion = vst.normalized.toLowerCase();\n\n    return {\n      versions: versions\n        .filter(\n          ({ lts }) =>\n            typeof lts === 'string' && lts.toLowerCase() === wantedLtsVersion\n        )\n        .map(({ version }) => version),\n      versionRange: '*',\n    };\n  }\n\n  return {\n    versions: versions.map(({ version }: NodeVersion): string => {\n      return version;\n    }),\n    versionRange: versionSelector,\n  };\n}\n"],
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