86 lines
2.6 KiB
JavaScript
86 lines
2.6 KiB
JavaScript
import {
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reader,
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readerTaskEither as rte,
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readonlyArray,
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taskEither,
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} from "fp-ts";
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import { flow, pipe } from "fp-ts/lib/function.js";
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// parseJsonCont :: string -> string -> TaskEither string string
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const parseJsonCont = (attr) => (source) => {
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try {
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const data = JSON.parse(source)[attr];
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if (!data) throw new Error(`Key '${attr}' doesn't exist`);
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return taskEither.right(data);
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} catch (e) {
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return taskEither.left(`Invalid json data: ${e}`);
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}
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};
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const YANDEX_GPT_API_URL = "https://300.ya.ru/api/sharing-url";
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// getYandexGptSharedUrl ::
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// string ->
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// ReaderTaskEither {yandexGptApiToken} string string
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const getYandexGptSharedUrl = (articleUrl) =>
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pipe(
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reader.ask(),
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reader.map(({ yandexGptApiToken }) =>
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pipe(
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taskEither.tryCatch(
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() =>
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fetch(YANDEX_GPT_API_URL, {
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method: "POST",
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headers: new Headers({
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"Content-Type": "application/json",
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"Authorization": `OAuth ${yandexGptApiToken}`,
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}),
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body: JSON.stringify({ article_url: articleUrl }),
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}),
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String,
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),
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/* TODO: fix to many requests error
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{
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ok: false,
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error_code: 429,
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description: 'Too Many Requests: retry after 5',
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parameters: { retry_after: 5 }
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}
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*/
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taskEither.flatMap((res) =>
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taskEither.tryCatch(() => res.json(), String)
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),
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taskEither.flatMap((data) =>
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data.status === "success" && data.sharing_url
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? taskEither.right(data.sharing_url)
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: taskEither.left(`Invalid response: ${JSON.stringify(data)}`)
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),
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)
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),
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);
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// getYandexGptTesisesFromSharedUrl :: string -> TaskEither string[] string
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const getYandexGptTesisesFromSharedUrl = (sharingUrl) =>
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pipe(
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taskEither.tryCatch(() => fetch(sharingUrl), String),
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taskEither.flatMap((res) => taskEither.tryCatch(() => res.text(), String)),
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taskEither.flatMap((html) =>
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taskEither.fromNullable("Cannot find data in the shared url")(
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/<script.+?type="application\/json".*?>([\s\S]+?)<\/script>/.exec(
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html,
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)[1],
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)
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),
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taskEither.flatMap(parseJsonCont("body")),
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taskEither.flatMap(parseJsonCont("thesis")),
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taskEither.map(readonlyArray.map((t) => t.content)),
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);
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// describeArticle ::
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// string ->
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// ReaderTaskEither {yandexGptApiToken} string string
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export const describeArticle = flow(
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getYandexGptSharedUrl,
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rte.flatMapTaskEither(getYandexGptTesisesFromSharedUrl),
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);
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