import * as prismicH from "@prismicio/helpers";

import {
	NormalizeConfig,
	NormalizerDependencies,
	StructuredTextField,
} from "../types";

export const isStructuredTextField = (
	value: unknown,
): value is StructuredTextField => {
	// We must be very loose here. An image element, for example, does not
	// contain a `text` property.
	return Array.isArray(value) && value.every((element) => "type" in element);
};

export type NormalizeStructuredTextConfig<
	Value extends StructuredTextField = StructuredTextField,
> = NormalizeConfig<Value> &
	Pick<NormalizerDependencies, "linkResolver" | "htmlSerializer">;

export type NormalizedStructuredTextValue<Value extends StructuredTextField> = {
	html: string;
	text: string;
	richText: Value;
	raw: Value;
};

export const structuredText = <Value extends StructuredTextField>(
	config: NormalizeStructuredTextConfig<Value>,
): NormalizedStructuredTextValue<Value> => {
	return {
		html: prismicH.asHTML(
			config.value,
			config.linkResolver,
			config.htmlSerializer,
		),
		text: prismicH.asText(config.value),
		richText: config.value,
		raw: config.value,
	};
};