const blog = require('./blog')()
const rss = require('rss')

class RSS {
    constructor(x) {
        this.object = {
            baseUrl: x.baseUrl,
        }
    }

    async GetFeed(x) {return await this.#CreateFeed(x).then(feed => {return feed})}

    async #CreateFeed(x) {
        return blog.ReadBlogs().then(blogs => {
            const feed = new rss({
                title: x.title,
                description: x.description,
                author: x.author
            })

            blogs.forEach(value => {
                if (value.date < new Date()) {
                    feed.item({
                        title: value.title,
                        description: value.body,
                        url: `${this.object.baseUrl}blog`,
                        date: value.date
                    })
                }
            })
            return feed.xml({ident: true})
        })
    }
}

module.exports = (x) => new RSS(x)