package cmd

import (
	"fmt"
	"github.com/spf13/cobra"
	"os"
	"os/signal"
)

const (
	// ExitSetupFailed defines exit code
	ExitSetupFailed = 1
)

var (
	defaultMgmtConfigDir    string
	defaultMgmtDataDir      string
	defaultMgmtConfig       string
	defaultLogDir           string
	defaultLogFile          string
	oldDefaultMgmtConfigDir string
	oldDefaultMgmtDataDir   string
	oldDefaultMgmtConfig    string
	oldDefaultLogDir        string
	oldDefaultLogFile       string
	mgmtDataDir             string
	mgmtConfig              string
	logLevel                string
	logFile                 string

	rootCmd = &cobra.Command{
		Use:   "netbird-mgmt",
		Short: "",
		Long:  "",
	}

	// Execution control channel for stopCh signal
	stopCh chan int
)

// Execute executes the root command.
func Execute() error {
	return rootCmd.Execute()
}

func init() {
	stopCh = make(chan int)

	defaultMgmtDataDir = "/var/lib/netbird/"
	defaultMgmtConfigDir = "/etc/netbird"
	defaultLogDir = "/var/log/netbird"

	oldDefaultMgmtDataDir = "/var/lib/wiretrustee/"
	oldDefaultMgmtConfigDir = "/etc/wiretrustee"
	oldDefaultLogDir = "/var/log/wiretrustee"

	defaultMgmtConfig = defaultMgmtConfigDir + "/management.json"
	defaultLogFile = defaultLogDir + "/management.log"

	oldDefaultMgmtConfig = oldDefaultMgmtConfigDir + "/management.json"
	oldDefaultLogFile = oldDefaultLogDir + "/management.log"

	mgmtCmd.Flags().IntVar(&mgmtPort, "port", 80, "server port to listen on (defaults to 443 if TLS is enabled, 80 otherwise")
	mgmtCmd.Flags().StringVar(&mgmtDataDir, "datadir", defaultMgmtDataDir, "server data directory location")
	mgmtCmd.Flags().StringVar(&mgmtConfig, "config", defaultMgmtConfig, "Netbird config file location. Config params specified via command line (e.g. datadir) have a precedence over configuration from this file")
	mgmtCmd.Flags().StringVar(&mgmtLetsencryptDomain, "letsencrypt-domain", "", "a domain to issue Let's Encrypt certificate for. Enables TLS using Let's Encrypt. Will fetch and renew certificate, and run the server with TLS")
	mgmtCmd.Flags().StringVar(&certFile, "cert-file", "", "Location of your SSL certificate. Can be used when you have an existing certificate and don't want a new certificate be generated automatically. If letsencrypt-domain is specified this property has no effect")
	mgmtCmd.Flags().StringVar(&certKey, "cert-key", "", "Location of your SSL certificate private key. Can be used when you have an existing certificate and don't want a new certificate be generated automatically. If letsencrypt-domain is specified this property has no effect")
	rootCmd.MarkFlagRequired("config") //nolint

	rootCmd.PersistentFlags().StringVar(&logLevel, "log-level", "info", "")
	rootCmd.PersistentFlags().StringVar(&logFile, "log-file", defaultLogFile, "sets Netbird log path. If console is specified the the log will be output to stdout")
	rootCmd.AddCommand(mgmtCmd)
}

// SetupCloseHandler handles SIGTERM signal and exits with success
func SetupCloseHandler() {
	c := make(chan os.Signal, 1)
	signal.Notify(c, os.Interrupt)
	go func() {
		for range c {
			fmt.Println("\r- Ctrl+C pressed in Terminal")
			stopCh <- 0
		}
	}()
}