package main

import (
	"fmt"
	"net/http"
	"time"

	"github.com/gorilla/feeds"
	"github.com/russross/blackfriday/v2" // Import the Markdown library
)

func generateAtomFeed(w http.ResponseWriter, blogs []Blog, siteURL string) {
	feed := &feeds.Feed{
		Title:       "Spitfire News",
		Link:        &feeds.Link{Href: siteURL},
		Description: "Blog about Spitfire browser news/updates.", // Blog subtitle (Atom uses "subtitle" for description)
		Author:      &feeds.Author{Name: "Internet Addict", Email: "noone@none.no"},
		Created:     time.Now(),
	}

	for _, blog := range blogs {
		for _, entry := range blog.Entries {
			// Convert Markdown content to HTML
			htmlContent := blackfriday.Run([]byte(entry.Content))

			feed.Items = append(feed.Items, &feeds.Item{
				Title:       entry.Title,
				Link:        &feeds.Link{Href: fmt.Sprintf("%s/%s/%d", siteURL, blog.Name, entry.Number), Rel: "alternate"},
				Description: entry.Description, // This can be used as the summary
				Author:      &feeds.Author{Name: entry.Author},
				Id:          fmt.Sprintf("%s/%s/%d", siteURL, blog.Name, entry.Number),
				Updated:     entry.Date,
				Content:     string(htmlContent),
			})
		}
	}

	atom, err := feed.ToAtom()
	if err != nil {
		http.Error(w, "Error generating Atom feed", http.StatusInternalServerError)
		return
	}

	w.Header().Set("Content-Type", "application/atom+xml")
	w.Write([]byte(atom))
}

func generateBlogAtomFeed(w http.ResponseWriter, blog Blog, siteURL string) {
	feed := &feeds.Feed{
		Title:       blog.Name,
		Link:        &feeds.Link{Href: fmt.Sprintf("%s/%s", siteURL, blog.Name)},
		Description: blog.Name, // Blog subtitle (Atom uses "subtitle" for description)
		Author:      &feeds.Author{Name: "Internet Addict", Email: "noone@none.no"},
		Created:     time.Now(),
	}

	for _, entry := range blog.Entries {
		// Convert Markdown content to HTML
		htmlContent := blackfriday.Run([]byte(entry.Content))

		feed.Items = append(feed.Items, &feeds.Item{
			Title:       entry.Title,
			Link:        &feeds.Link{Href: fmt.Sprintf("%s/%s/%d", siteURL, blog.Name, entry.Number), Rel: "alternate"},
			Description: entry.Description, // This can be used as the summary
			Author:      &feeds.Author{Name: entry.Author},
			Id:          fmt.Sprintf("%s/%s/%d", siteURL, blog.Name, entry.Number),
			Updated:     entry.Date,
			Content:     string(htmlContent),
		})
	}

	atom, err := feed.ToAtom()
	if err != nil {
		http.Error(w, "Error generating Atom feed", http.StatusInternalServerError)
		return
	}

	w.Header().Set("Content-Type", "application/atom+xml")
	w.Write([]byte(atom))
}