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path: root/rss.go
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package main

import (
	"fmt"
	"log"
	"time"

	"dim13.org/rss"
	irc "github.com/fluffle/goirc/client"
)

var Feed = map[string]string{
	"News":     `https://www.linux.org.ru/section-rss.jsp?section=1`,
	"Forum":    `https://www.linux.org.ru/section-rss.jsp?section=2`,
	"Gallery":  `https://www.linux.org.ru/section-rss.jsp?section=3`,
	"Polls":    `https://www.linux.org.ru/section-rss.jsp?section=5`,
	"OpenNET":  `http://www.opennet.ru/opennews/opennews_all_noadv.rss`,
	"Undeadly": `http://undeadly.org/cgi?action=rss`,
	"Kernel":   `https://www.kernel.org/feeds/kdist.xml`,
}

type News struct {
	Source string
	Item   rss.Item
}

const timeOut = 5 * time.Minute

var news = make(chan News)

func ShowNews(conn *irc.Conn, _ *irc.Line) {
	for {
		n := <-news
		s := fmt.Sprintf("%v: %v - %v", n.Source,
			n.Item.Title, n.Item.Link)
		conn.Privmsg(*room, s)
	}
}

func init() {
	for k, v := range Feed {
		go func(c chan News, source, url string) {
			for {
				to := time.Now().Add(-timeOut)
				r, err := rss.Fetch(url)
				if err != nil {
					log.Println(err)
				}
				for _, i := range r.Channel.Items {
					if i.PubDate.After(to) {
						c <- News{source, i}
					}
				}
				time.Sleep(timeOut)
			}
		}(news, k, v)
	}
}