package main

import (
	"encoding/xml"
)

type Document struct {
	Channel Channel `xml:"channel"`
}

type Item struct {
	Title         string `xml:"title"`
	Link          string `xml:"link"`
	Description   string `xml:"description"`
	PublishedDate string `xml:"pubDate"`
}

type Channel struct {
	Title       string `xml:"title"`
	Description string `xml:"description"`
	Items       []Item `xml:"item"`
}

func (c Channel) ItemsToLinks() []Link {
	formattedItems := []Link{}

	for _, feedItem := range c.Items {
		formattedItems = append(formattedItems, Link{Url: feedItem.Link, Title: feedItem.Title, PublishedDate: feedItem.PublishedDate})
	}

	return formattedItems
}

func ParseFeed(raw []byte) Document {
	var doc Document

	if err := xml.Unmarshal(raw, &doc); err != nil {
		return Document{}
	}

	return doc
}