package util

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

func TemplateToFile(desFile string, templateContent string, data interface{}) error {
	file, err := os.OpenFile(desFile, os.O_WRONLY|os.O_TRUNC|os.O_CREATE, os.ModePerm)
	if err != nil {
		return err
	}
	defer file.Close()

	tpl := template.New("template")
	tpl, err = tpl.Parse(templateContent)
	if err != nil {
		return err
	}

	b := bytes.Buffer{}
	err = tpl.Execute(&b, data)
	if err != nil {
		return err
	}

	_, err = file.Write(b.Bytes())
	if err != nil {
		return err
	}
	return nil
}

func WriteFile(filePath string, data []byte) error {
	file, err := os.OpenFile(filePath, os.O_WRONLY|os.O_TRUNC|os.O_CREATE, os.ModePerm)
	if err != nil {
		return err
	}
	defer file.Close()

	_, err = file.Write(data)
	return err
}

func WriteFileWithNotEdit(filePath string, data []byte) error {
	notEdit := "# Code generated by wujian-develop_tool. DO NOT EDIT.\n\n"
	return WriteFile(filePath, []byte(notEdit+string(data)))
}

// ExistFile 文件是否存在
func ExistFile(filePath string) bool {
	info, err := os.Stat(filePath)
	return err == nil && !info.IsDir()
}

// ExistDir 目录是否存在
func ExistDir(dirPath string) bool {
	info, err := os.Stat(dirPath)
	return err == nil && info.IsDir()
}