import type * as t from '@babel/types';

import type { Metadata } from '../../../../../types';
import { createResultPair } from '../../../../create-result-pair';
import { resolveBinding } from '../../../../resolve-binding';
import type { EvaluateExpression } from '../../../../types';

export const evaluateIdentifier = (
  expression: t.Identifier,
  meta: Metadata,
  evaluateExpression: EvaluateExpression
): ReturnType<typeof createResultPair> => {
  const { name } = expression;
  const resolvedBinding = resolveBinding(name, meta, evaluateExpression);

  if (resolvedBinding) {
    const { constant, node, meta: updatedMeta } = resolvedBinding;

    if (constant && node) {
      return createResultPair(node as t.Expression, updatedMeta);
    }
  }

  return createResultPair(expression, meta);
};