weekly/main.go

package main

import (
	"html/template"
	"log"
	"net/http"
	"net/url"
	"os"
	"time"

	"github.com/jinzhu/now"
	"p83.nl/go/ekster/pkg/microsub"
	"willnorris.com/go/microformats"

	"p83.nl/go/ekster/pkg/jf2"
)

func main() {
	u, err := url.Parse(os.Args[1])
	if err != nil {
		log.Fatal(err)
	}

	resp, err := http.Get(u.String())
	if err != nil {
		log.Fatal(err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != 200 {
		log.Fatalf("Status is not 200, but %d", resp.StatusCode)
	}

	md := microformats.Parse(resp.Body, u)
	items := jf2.SimplifyMicroformatDataItems(md)

	items = filterEntriesAfter(items, now.With(time.Now()).Monday())

	t, err := template.ParseFiles("templates/weekly.html")
	if err != nil {
		log.Fatal(err)
	}

	err = t.Execute(os.Stdout, items)
	if err != nil {
		log.Fatal(err)
	}
}

func filterEntriesAfter(items []microsub.Item, from time.Time) []microsub.Item {
	var result []microsub.Item
	for _, item := range items {
		published, err := time.Parse(time.RFC3339, item.Published)
		if err != nil {
			continue
		}
		if published.After(from) {
			result = append(result, item)
		}
	}
	return result
}