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
	disableMetrics          bool

	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")
	mgmtCmd.Flags().BoolVar(&disableMetrics, "disable-anonymous-metrics", false, "disables push of anonymous usage metrics to NetBird")
	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
		}
	}()
}