import * as prismic from "@prismicio/client"

import { sentenceCase } from "../../lib/changeCase"
import { createFaker } from "../../lib/createFaker"
import type { MockRichTextValueConfig } from "../../types"

const patterns = {
	short: {
		sentenceCount: 2,
	},
	medium: {
		sentenceCount: 6,
	},
	long: {
		sentenceCount: 12,
	},
} as const

type MockRichTextParagraphValueConfig = {
	pattern?: keyof typeof patterns
} & MockRichTextValueConfig

export const paragraph = (
	config: MockRichTextParagraphValueConfig,
): prismic.RTParagraphNode | undefined => {
	const faker = config.faker || createFaker(config.seed)

	const patternKey =
		config.pattern || faker.randomElement(Object.keys(patterns) as (keyof typeof patterns)[])
	const pattern = patterns[patternKey]

	const text = Array.from(
		{ length: pattern.sentenceCount },
		() => sentenceCase(faker.words(faker.range(5, 15))) + ".",
	).join(" ")

	return {
		type: prismic.RichTextNodeType.paragraph,
		text,
		spans: [],
	}
}