package main

import (
	"bytes"
	"fmt"
	"io"
	"os"
	"path/filepath"
	"strings"
	"text/template"
)

func HandleTemplate(tmpl *template.Template) error {
	b := &bytes.Buffer{}
	if err := tmpl.Execute(b, ConfigFile.Globals); err != nil {
		return ErrTemplateExecutionFailed.Wrap(err, tmpl.Name())
	}

	if len(strings.TrimSpace(b.String())) == 0 {
		return nil
	}

	tmplPath := filepath.Join(ConfigFile.TargetDir, tmpl.Name())

	if err := os.MkdirAll(filepath.Dir(tmplPath), 0755); err != nil {
		return err
	}

	file, err := os.Create(tmplPath)
	if err != nil {
		return err
	}
	defer file.Close()

	if _, err := io.Copy(file, b); err != nil {
		return err
	}

	fmt.Println(tmplPath)

	return nil
}