CedarCopilot/cedar-mail

// Babel plugin: transforms `import.meta.env.X` → `(globalThis.__importMeta__ || {}).env?.X`
// at parse time so jsdom-based jest tests can run code that uses Vite's
// `import.meta.env` without a real Vite environment.
//
// Lives in its own file (rather than inline in jest.config.cjs) because
// babel-jest's `loadPartialConfigSync` rejects inline function plugins when
// computing the per-file cache key — passing a string path bypasses that.
module.exports = function importMetaBabelPlugin() {
  return {
    name: 'transform-import-meta-env',
    visitor: {
      /** @param {any} path */
      MetaProperty(path) {
        const { meta, property } = path.node;
        if (meta.name === 'import' && property.name === 'meta') {
          path.replaceWithSourceString('(globalThis.__importMeta__ || {})');
        }
      },
    },
  };
};