html := import("html").Renderer()
paths := import("paths")
log := import("log")
text := import("text")
os := import("os")

print_header := func(c) {
	header := html.nav({
		id: "main-nav"
	})
	nav_file_links := []
	if c.is_index {
		nav_file_links += []
		if c.http.request.url.path != "/" {
			nav_file_links += [
				html.a({
					href: ".."
				}).body(
					"<<<"
				)
			]
		}
		dir := os.open(paths.dir(c.pp.fpath))
		names := dir.readdirnames(0)
		for _, name in names {
			if text.has_suffix(name, c.pp_ext) {
				name = name[:len(name)-len(c.pp_ext)]
			}
			if name == c.index_suffix {
				continue
			}
			ext := paths.ext(name)
			href := "./" + name
			if !ext {
				href += "/"
			}
			nav_file_links += [html.a({
				href: href
			}).body(
				name
			)]
		}

	} else {
		nav_file_links += [html.a({
			href: "."
		}).body(
			"<<<"
		)]
	}

	header.body(
		html.div({
			class: "files"
		}).body(
			nav_file_links...
		)
	)
	header.add(html.button({
		id: "create-heading-nav-btn"
	}).body(
		"Содержание"
	))

	c.pp.print(html.button({
		id: "top-btn"
	}).body(
		"TOP"
	))
	c.pp.print(header)
}

export {
	print_header : print_header
}