import type { Content, ContentType, Author } from "$lib/types";

import { Feed, type Author as FeedAuthor } from 'feed';

const site = 'https://codingcat.dev';

export const buildFeed = ({

contents,

contentType,

authorItems,

}: {

contents: Content[];

contentType: ContentType;

authorItems: Author[];

}) => {

const feed = new Feed({

title: `${site} - ${contentType} feed`,

description: `${site} - ${contentType} feed`,

id: `${site}`,

link: `${site}`,

language: 'en', // optional, used only in RSS 2.0, possible values: http://www.w3.org/TR/REC-html40/struct/dirlang.html#langcodes

image: `https://media.codingcat.dev/image/upload/f_png,c_thumb,g_face,w_1200,h_630/dev-codingcatdev-photo/v60h88eohd7ufghkspgo.png`,

favicon: `${site}/favicon.ico`,

copyright: `All rights reserved 2021, ${site}`,

updated: new Date(),

feedLinks: {

rss2: `${site}/blog/rss.xml`,

},

author: {

name: 'Alex Patterson',

email: 'alex@codingcat.dev',

link: `${site}`,

},

});

for (const content of contents) {

const authors = content?.authors?.map((authorSlug) => {

return authorItems.filter(a => a.slug === authorSlug).map(a => {

return {

name: a.name,

link: `${site}/author/${a.slug}`,

}

})?.at(0) as FeedAuthor;

}).filter(a => a !== undefined)

feed.addItem({

title: content.title || '',

content: content.html,

link: `${site}/${contentType}/${content.slug}`,

description: `${content.excerpt}`,

image: content.cover || feed.items.at(0)?.image,

date: content.start || new Date(),

author: authors ? authors

: [{

name: 'Alex Patterson',

email: 'alex@codingcat.dev',

link: `${site}/author/alex-patterson`,

}],

});

}

return feed;

};