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import { PageLink, Slug, Topic } from '@ts/types/app';
import {
RawArticle,
RawTopic,
RawTopicPreview,
TotalItems,
} from '@ts/types/raw-data';
import { getImageFromRawData } from '@utils/helpers/images';
import { getPageLinkFromRawData } from '@utils/helpers/pages';
import { EdgesResponse, EdgesVars, fetchAPI, getAPIUrl } from './api';
import { getArticleFromRawData } from './articles';
import {
topicBySlugQuery,
topicsListQuery,
topicsSlugQuery,
totalTopicsQuery,
} from './topics.query';
/**
* Retrieve the total number of topics.
*
* @returns {Promise<number>} - The topics total number.
*/
export const getTotalTopics = async (): Promise<number> => {
const response = await fetchAPI<TotalItems, typeof totalTopicsQuery>({
api: getAPIUrl(),
query: totalTopicsQuery,
});
return response.topics.pageInfo.total;
};
/**
* Retrieve the given number of topics from API.
*
* @param {EdgesVars} props - An object of GraphQL variables.
* @returns {Promise<EdgesResponse<RawTopicPreview>>} The topics data.
*/
export const getTopicsPreview = async (
props: EdgesVars
): Promise<EdgesResponse<RawTopicPreview>> => {
const response = await fetchAPI<RawTopicPreview, typeof topicsListQuery>({
api: getAPIUrl(),
query: topicsListQuery,
variables: props,
});
return response.topics;
};
/**
* Convert raw data to a Topic object.
*
* @param {RawTopic} data - The page raw data.
* @returns {Topic} The page data.
*/
export const getTopicFromRawData = (data: RawTopic): Topic => {
const {
acfTopics,
contentParts,
databaseId,
date,
featuredImage,
info,
modified,
slug,
title,
seo,
} = data;
/**
* Retrieve an array of related topics.
*
* @param posts - The topic posts.
* @returns {PageLink[]} An array of topics links.
*/
const getRelatedThematics = (posts: RawArticle[]): PageLink[] => {
const thematics: PageLink[] = [];
posts.forEach((post) => {
if (post.acfPosts.postsInThematic) {
post.acfPosts.postsInThematic.forEach((thematic) =>
thematics.push(getPageLinkFromRawData(thematic))
);
}
});
const thematicsIds = thematics.map((thematic) => thematic.id);
const uniqueThematics = thematics.filter(
({ id }, index) => !thematicsIds.includes(id, index + 1)
);
const sortThematicByName = (a: PageLink, b: PageLink) => {
var nameA = a.name.toUpperCase(); // ignore upper and lowercase
var nameB = b.name.toUpperCase(); // ignore upper and lowercase
if (nameA < nameB) {
return -1;
}
if (nameA > nameB) {
return 1;
}
// names must be equal
return 0;
};
return uniqueThematics.sort(sortThematicByName);
};
return {
content: contentParts.afterMore,
id: databaseId,
intro: contentParts.beforeMore,
meta: {
articles: acfTopics.postsInTopic.map((post) =>
getArticleFromRawData(post)
),
cover: featuredImage?.node
? getImageFromRawData(featuredImage.node)
: undefined,
dates: { publication: date, update: modified },
website: acfTopics.officialWebsite,
readingTime: info.readingTime,
seo: {
description: seo?.metaDesc || '',
title: seo?.title || '',
},
thematics: getRelatedThematics(acfTopics.postsInTopic),
wordsCount: info.wordsCount,
},
slug,
title,
};
};
/**
* Retrieve a Topic object by slug.
*
* @param {string} slug - The topic slug.
* @returns {Promise<Article>} The requested topic.
*/
export const getTopicBySlug = async (slug: string): Promise<Topic> => {
const response = await fetchAPI<RawTopic, typeof topicBySlugQuery>({
api: getAPIUrl(),
query: topicBySlugQuery,
variables: { slug },
});
return getTopicFromRawData(response.topic);
};
/**
* Retrieve all the topics slugs.
*
* @returns {Promise<string[]>} - An array of topics slugs.
*/
export const getAllTopicsSlugs = async (): Promise<string[]> => {
const totalTopics = await getTotalTopics();
const response = await fetchAPI<Slug, typeof topicsSlugQuery>({
api: getAPIUrl(),
query: topicsSlugQuery,
variables: { first: totalTopics },
});
return response.topics.edges.map((edge) => edge.node.slug);
};
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