import { GqlSegment } from './gql-segments/types';

export default function concatGqlSegments(segments: Array<GqlSegment>) {
  return segments.reduce(
    (
      {
        mutation: accMutation,
        variables: accVariables,
        parameters: accParameters,
      },
      {
        mutation: singleMutation,
        variables: singleVariables,
        parameters: singleParameters,
      },
    ) => ({
      mutation: `${accMutation}  ${singleMutation}`,
      variables: {
        ...accVariables,
        ...singleVariables,
      },
      parameters: [...accParameters, ...singleParameters],
    }),
    {
      mutation: '',
      variables: {},
      parameters: [],
    } as GqlSegment,
  );
}