package executor

import "os/exec"

// BasicCommandExists 判定命令是否存在
func BasicCommandExists(commandName string) bool {

	cmd := exec.Command("command", "-v", commandName)
	err := cmd.Run()
	if err != nil {
		log.DebugF("指令 %s 不存在", commandName)
		return false
	} else {
		return true
	}
}

// BasicCommandExistsBatch 判定批量命令是否存在
func BasicCommandExistsBatch(commandNameList []string) (bool, string) {

	for _, commandName := range commandNameList {
		if !BasicCommandExists(commandName) {
			return false, commandName
		}
	}

	return true, ""
}

// BasicReplace 基础替换命令
func BasicReplace(filename string, origin string, replace string) bool {

	// 暂不添加
	//if !BasicFileExistAndNotNull(filename) {
	//	log.DebugF("文件替换")
	//}

	cmd := exec.Command("sed", "-i", "s/"+origin+"/"+replace+"/g", filename)
	err := cmd.Run()
	if err != nil {
		log.DebugF("替换文件 %s ，从 [%s] => [%s] 错误！", filename, origin, replace)
		return false
	} else {
		return true
	}
}

func BasicFileExists(filename string) bool {

	cmd := exec.Command("test", "-f", filename)
	err := cmd.Run()
	if err != nil {
		log.DebugF("文件 %s 不存在！", filename)
		return false
	} else {
		return true
	}
}

func BasicFileExistAndNotNull(filename string) bool {

	cmd := exec.Command("test", "-z", filename)
	err := cmd.Run()
	if err != nil {
		log.DebugF("文件 %s 不存在！", filename)
		return false
	} else {
		return true
	}
}