package converter

import (
	"bytes"

	"github.com/yuin/goldmark"
	"github.com/yuin/goldmark/extension"
	"github.com/yuin/goldmark/renderer"
	"github.com/yuin/goldmark/util"

	"go.bigb.es/confluence-md-utilities/confluence"
)

// MarkdownToConfluence converts Markdown source to Confluence storage format XML.
func MarkdownToConfluence(source []byte) (string, error) {
	md := goldmark.New(
		goldmark.WithExtensions(
			extension.GFM,
			extension.TaskList,
		),
		goldmark.WithRenderer(
			renderer.NewRenderer(
				renderer.WithNodeRenderers(
					util.Prioritized(confluence.NewRenderer(), 100),
				),
			),
		),
	)

	var buf bytes.Buffer
	if err := md.Convert(source, &buf); err != nil {
		return "", err
	}
	return buf.String(), nil
}