import * as gqlc from "graphql-compose";
import * as prismicT from "@prismicio/types";
import * as RTE from "fp-ts/ReaderTaskEither";

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

import { buildBooleanFieldConfig } from "../builders/buildBooleanFieldConfig";
import { buildColorFieldConfig } from "../builders/buildColorFieldConfig";
import { buildDateFieldConfig } from "../builders/buildDateFieldConfig";
import { buildEmbedFieldConfig } from "../builders/buildEmbedFieldConfig";
import { buildGeoPointFieldConfig } from "../builders/buildGeoPointFieldConfig";
import { buildGroupFieldConfig } from "../builders/buildGroupFieldConfig";
import { buildImageFieldConfig } from "../builders/buildImageFieldConfig";
import { buildLinkFieldConfig } from "../builders/buildLinkFieldConfig";
import { buildNumberFieldConfig } from "../builders/buildNumberFieldConfig";
import { buildSelectFieldConfig } from "../builders/buildSelectFieldConfig";
import { buildStructuredTextFieldConfig } from "../builders/buildStructuredTextFieldConfig";
import { buildSlicesFieldConfig } from "../builders/buildSlicesFieldConfig";
import { buildTextFieldConfig } from "../builders/buildTextFieldConfig";
import { buildTimestampFieldConfig } from "../builders/buildTimestampFieldConfig";
import { buildUIDFieldConfig } from "../builders/buildUIDFieldConfig";
import { buildUnknownFieldConfig } from "../builders/buildUnknownFieldConfig";
import { buildIntegrationFieldConfig } from "../builders/buildIntegrationFieldConfig";

/**
 * Returns a GraphQL field configuration object for a Custom Type field. The
 * resulting configuration object can be used in a GraphQL type.
 *
 * In some cases, `undefined` will be returned. Fields that return `undefined`
 * should be omitted from the GraphQL schema.
 *
 * @param path - Path to the field.
 * @param schema - Schema definition for the field.
 *
 * @returns GraphQL field configuration object.
 */
export const toFieldConfig = (
	path: string[],
	schema: prismicT.CustomTypeModelField,
): RTE.ReaderTaskEither<
	Dependencies,
	Error,
	gqlc.ObjectTypeComposerFieldConfigDefinition<unknown, unknown> | undefined
> => {
	switch (schema.type) {
		case prismicT.CustomTypeModelFieldType.Boolean: {
			return buildBooleanFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.Color: {
			return buildColorFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.Date: {
			return buildDateFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.Embed: {
			return buildEmbedFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.GeoPoint: {
			return buildGeoPointFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.Group: {
			return buildGroupFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.Image: {
			return buildImageFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.IntegrationFields: {
			return buildIntegrationFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.Link: {
			return buildLinkFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.Number: {
			return buildNumberFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.Select: {
			return buildSelectFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.Slices: {
			if (
				schema.config.choices &&
				Object.keys(schema.config.choices).length > 0
			) {
				return buildSlicesFieldConfig(path, schema);
			} else {
				return RTE.right(undefined);
			}
		}

		case prismicT.CustomTypeModelFieldType.StructuredText: {
			return buildStructuredTextFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.Text: {
			return buildTextFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.Timestamp: {
			return buildTimestampFieldConfig(path, schema);
		}

		case prismicT.CustomTypeModelFieldType.UID: {
			return buildUIDFieldConfig(path, schema);
		}

		default: {
			return buildUnknownFieldConfig(path, schema);
		}
	}
};