package main

import (
	"context"
	"fmt"
	"net/url"

	"github.com/crowdsecurity/crowdsec/pkg/apiclient"
	"github.com/crowdsecurity/crowdsec/pkg/cwhub"
	"github.com/crowdsecurity/crowdsec/pkg/cwversion"
	"github.com/go-openapi/strfmt"
	log "github.com/sirupsen/logrus"
	"github.com/spf13/cobra"
)

func NewConsoleCmd() *cobra.Command {
	var cmdConsole = &cobra.Command{
		Use:               "console [action]",
		Short:             "Manage interaction with Crowdsec console (https://app.crowdsec.net)",
		Args:              cobra.MinimumNArgs(1),
		DisableAutoGenTag: true,
		PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
			if err := csConfig.LoadAPIServer(); err != nil || csConfig.DisableAPI {
				log.Fatal("Local API is disabled, please run this command on the local API machine")
			}
			if csConfig.API.Server.OnlineClient == nil {
				log.Fatalf("no configuration for Central API (CAPI) in '%s'", *csConfig.FilePath)
			}

			return nil
		},
	}

	name := ""
	tags := []string{}

	cmdEnroll := &cobra.Command{
		Use:   "enroll [enroll-key]",
		Short: "Enroll this instance to https://app.crowdsec.net [requires local API]",
		Long: `
Enroll this instance to https://app.crowdsec.net
		
You can get your enrollment key by creating an account on https://app.crowdsec.net.
After running this command your will need to validate the enrollment in the webapp.`,
		Example: `cscli console enroll YOUR-ENROLL-KEY
		cscli console enroll --name [instance_name] YOUR-ENROLL-KEY
		cscli console enroll --name [instance_name] --tags [tag_1] --tags [tag_2] YOUR-ENROLL-KEY
`,
		Args:              cobra.ExactArgs(1),
		DisableAutoGenTag: true,
		PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
			if err := csConfig.LoadAPIServer(); err != nil || csConfig.DisableAPI {
				log.Fatal("Local API is disabled, please run this command on the local API machine")
			}
			if csConfig.API.Server.OnlineClient == nil {
				log.Fatalf("no configuration for Central API (CAPI) in '%s'", *csConfig.FilePath)
			}
			if csConfig.API.Server.OnlineClient.Credentials == nil {
				log.Fatal("You must configure Central API (CAPI) with `cscli capi register` before enrolling your instance")
			}
			return nil
		},
		Run: func(cmd *cobra.Command, args []string) {
			password := strfmt.Password(csConfig.API.Server.OnlineClient.Credentials.Password)
			apiURL, err := url.Parse(csConfig.API.Server.OnlineClient.Credentials.URL)
			if err != nil {
				log.Fatalf("Could not parse CAPI URL : %s", err)
			}

			if err := csConfig.LoadHub(); err != nil {
				log.Fatalf(err.Error())
			}

			if err := cwhub.GetHubIdx(csConfig.Hub); err != nil {
				log.Fatalf("Failed to load hub index : %s", err)
				log.Infoln("Run 'sudo cscli hub update' to get the hub index")
			}

			scenarios, err := cwhub.GetUpstreamInstalledScenariosAsString()
			if err != nil {
				log.Fatalf("failed to get scenarios : %s", err.Error())
			}

			if len(scenarios) == 0 {
				scenarios = make([]string, 0)
			}

			c, _ := apiclient.NewClient(&apiclient.Config{
				MachineID:     csConfig.API.Server.OnlineClient.Credentials.Login,
				Password:      password,
				Scenarios:     scenarios,
				UserAgent:     fmt.Sprintf("crowdsec/%s", cwversion.VersionStr()),
				URL:           apiURL,
				VersionPrefix: "v2",
			})
			_, err = c.Auth.EnrollWatcher(context.Background(), args[0], name, tags)
			if err != nil {
				log.Fatalf("Could not enroll instance: %s", err)
			}
			log.Infof("Watcher successfully enrolled. Visit https://app.crowdsec.net to accept it.")
		},
	}
	cmdEnroll.Flags().StringVarP(&name, "name", "n", "", "Name to display in the console")
	cmdEnroll.Flags().StringSliceVarP(&tags, "tags", "t", tags, "Tags to display in the console")
	cmdConsole.AddCommand(cmdEnroll)
	return cmdConsole
}