package gmi

import (
	"fmt"

	"dev.mediocregopher.com/mediocre-blog.git/src/render"
)

// NOTE If I wasn't abandoning this codebase I would give this a proper doc and
// constructor, and make URLBuilder private.
type PostPreprocessFuncs struct {
	URLBuilder render.URLBuilder
}

func (f PostPreprocessFuncs) Image(args ...string) (string, error) {
	var (
		id    = args[0]
		descr = "Image"
	)

	if len(args) > 1 {
		descr = args[1]
	}

	return fmt.Sprintf(
		"\n=> %s %s", f.URLBuilder.Asset(id), descr,
	), nil
}