/*
Copyright © 2019 Juan Carlos Mejías Rodríguez <juan.mejias@reduc.edu.cu>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cmd

import (
	"fmt"
	"os"
	"text/template"

	"github.com/greenled/portainer-stack-utils/util"

	"github.com/greenled/portainer-stack-utils/common"
	"github.com/spf13/viper"

	"github.com/spf13/cobra"
)

// endpointListCmd represents the list command
var endpointListCmd = &cobra.Command{
	Use:     "list",
	Short:   "List endpoints",
	Aliases: []string{"ls"},
	Run: func(cmd *cobra.Command, args []string) {
		client, err := common.GetClient()
		util.CheckError(err)

		endpoints, err := client.GetEndpoints()
		util.CheckError(err)

		if viper.GetString("endpoint.list.format") != "" {
			// Print endpoint fields formatted
			template, templateParsingErr := template.New("endpointTpl").Parse(viper.GetString("endpoint.list.format"))
			util.CheckError(templateParsingErr)
			for _, e := range endpoints {
				templateExecutionErr := template.Execute(os.Stdout, e)
				util.CheckError(templateExecutionErr)
				fmt.Println()
			}
		} else {
			// Print all endpoint fields as a table
			writer, err := util.NewTabWriter([]string{
				"ENDPOINT ID",
				"NAME",
				"TYPE",
				"URL",
				"PUBLIC URL",
				"GROUP ID",
			})
			util.CheckError(err)
			for _, e := range endpoints {
				var endpointType string
				if e.Type == 1 {
					endpointType = "docker"
				} else if e.Type == 2 {
					endpointType = "agent"
				}
				_, err := fmt.Fprintln(writer, fmt.Sprintf(
					"%v\t%s\t%v\t%s\t%s\t%v",
					e.Id,
					e.Name,
					endpointType,
					e.URL,
					e.PublicURL,
					e.GroupID,
				))
				util.CheckError(err)
			}
			flushErr := writer.Flush()
			util.CheckError(flushErr)
		}
	},
}

func init() {
	endpointCmd.AddCommand(endpointListCmd)

	endpointListCmd.Flags().String("format", "", "format output using a Go template")
	viper.BindPFlag("endpoint.list.format", endpointListCmd.Flags().Lookup("format"))
}