package config

import "flag"

var config *Config

type Config struct {
	File             string
	Action           string
	Verbose          bool
	Parallel         bool
	Dryrun           bool
	DockerExecutable string
}

func GetConfig() Config {
	if config != nil {
		return *config
	}

	config = &Config{}

	flag.StringVar(&config.File, "f", "", "job definition")
	flag.StringVar(&config.Action, "a", "", "action")
	flag.BoolVar(&config.Verbose, "v", false, "verbose")
	flag.BoolVar(&config.Parallel, "p", false, "parallel")
	flag.BoolVar(&config.Dryrun, "dry", false, "dryrun")
	flag.StringVar(&config.DockerExecutable, "docker", "docker", "docker executable")

	flag.Parse()

	if config.File == "" {
		panic("missing job definition")
	}

	if config.Action != "load" && config.Action != "push" {
		panic("action must be \"load\" or \"push\"")
	}

	return *config
}