import * as gatsby from "gatsby";
import * as prismicT from "@prismicio/types";
import * as RTE from "fp-ts/ReaderTaskEither";
import { pipe } from "fp-ts/function";

import { Dependencies } from "../types";
import { buildObjectType } from "./buildObjectType";
import { buildFieldConfigMap } from "./buildFieldConfigMap";

/**
 * Builds a GraphQL type from a record mapping a Prismic field API ID to its
 * schema definition.
 *
 * @param path - Path to the schema record.
 * @param record - Record mapping a Prismic field API ID to its schema definition.
 * @param typeName - Type name of the resulting GraphQL type.
 *
 * @returns GraphQL type containing fields for each record property.
 */
export const buildSchemaRecordType = (
	path: string[],
	record: Record<string, prismicT.CustomTypeModelField>,
	typeName: string | string[] = path,
): RTE.ReaderTaskEither<Dependencies, Error, gatsby.GatsbyGraphQLObjectType> =>
	pipe(
		RTE.ask<Dependencies>(),
		RTE.bind("fields", () => buildFieldConfigMap(path, record)),
		RTE.chainW((scope) =>
			buildObjectType({
				name: scope.nodeHelpers.createTypeName(typeName),
				fields: scope.fields,
			}),
		),
	);