import {
  importFlavorIgnore,
  importFlavorSideEffect,
  importFlavorType,
  importFlavorValue,
} from '../constants';
import { hasIgnoreNextNode } from './has-ignore-next-node';
import type { GetImportFlavorOfNode } from '../types';

/**
 * Classifies nodes by import-flavor, primarily informing whether the node is a
 * candidate for merging
 *
 * @param node
 * @returns The flavor of the import node
 */
export const getImportFlavorOfNode: GetImportFlavorOfNode = (node) => {
  if (hasIgnoreNextNode(node.leadingComments)) {
    return importFlavorIgnore;
  }
  if (node.specifiers.length === 0) {
    return importFlavorSideEffect;
  }
  if (node.importKind === 'type') {
    return importFlavorType;
  }
  return importFlavorValue;
};