package internal

import (
	"os"
	"strings"

	"charm.land/glamour/v2"
)

func RenderMarkdown(md string) string {
	if md == "" {
		return ""
	}

	style := getStyle()

	r, err := glamour.NewTermRenderer(
		glamour.WithStandardStyle(style),
		glamour.WithWordWrap(80),
	)
	if err != nil {
		return md
	}
	defer r.Close()

	out, err := r.Render(md)
	if err != nil {
		return md
	}

	return out
}

func RenderParagraph(text string) string {
	if text == "" {
		return ""
	}

	text = strings.TrimRight(text, "\n")

	if text == "" {
		return ""
	}

	style := getStyle()

	r, err := glamour.NewTermRenderer(
		glamour.WithStandardStyle(style),
		glamour.WithWordWrap(80),
	)
	if err != nil {
		return text
	}
	defer r.Close()

	out, err := r.Render(text)
	if err != nil {
		return text
	}

	return out
}

func getStyle() string {
	style := "dark"
	if s := os.Getenv("GLAMOUR_STYLE"); s != "" {
		style = s
	}
	return style
}