"io"
	"math"
	"os"
	"path/filepath"
	"strings"

	"golang.org/x/tools/cover"
)

// htmlOutput reads the profile data from profile and generates an HTML
// coverage report, writing it to outfile. If outfile is empty,
// it writes the report to a temporary file and opens it in a web browser.
func htmlOutput(profile, outfile string) error {
	profiles, err := cover.ParseProfiles(profile)
	if err != nil {
		return err
	}