package stacks

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

// generateFile renders a given template to a given filepath.
func generateFile(data interface{}, templateString, templateName, path string) error {
	file, err := os.Create(path)
	if err != nil {
		return fmt.Errorf("unable to create the file '%s'...\n%v", path, err)
	}
	defer file.Close()

	tmpl := template.Must(template.New(templateName).Parse(templateString))

	if err = tmpl.Execute(file, data); err != nil {
		return fmt.Errorf("unable to execute the template at '%s'...\n%v", path, err)
	}

	return nil
}