package templates

import (
	"bytes"
	"fmt"
	"text/template"
)

// FillTemplate takes a template file and an interface specifying the data used by the template file and fills it, returning a string.
func FillTemplate(data interface{}, templatePath string) (string, error) {

	tmpl, err := template.ParseFiles(templatePath)
	if err != nil {
		return "", fmt.Errorf("unable to parse template file: %s", err)
	}

	var result bytes.Buffer
	if err := tmpl.Execute(&result, data); err != nil {
		return "", fmt.Errorf("execute error: %s", err)
	}

	return result.String(), nil
}