package app

import (
	"context"
	"fmt"

	"coopcloud.tech/abra/cli/internal"
	"coopcloud.tech/abra/pkg/autocomplete"
	"coopcloud.tech/abra/pkg/client"
	"coopcloud.tech/abra/pkg/formatter"
	"coopcloud.tech/abra/pkg/i18n"
	"coopcloud.tech/abra/pkg/log"
	"coopcloud.tech/abra/pkg/upstream/stack"
	"github.com/AlecAivazis/survey/v2"
	"github.com/spf13/cobra"
)

var AppVolumeListCommand = &cobra.Command{
	Use:     i18n.G("list <domain> [flags]"),
	Aliases: []string{i18n.G("ls")},
	Short:   i18n.G("List volumes associated with an app"),
	Args:    cobra.ExactArgs(1),
	ValidArgsFunction: func(
		cmd *cobra.Command,
		args []string,
		toComplete string) ([]string, cobra.ShellCompDirective) {
		return autocomplete.AppNameComplete()
	},
	Run: func(cmd *cobra.Command, args []string) {
		app := internal.ValidateApp(args)

		cl, err := client.New(app.Server)
		if err != nil {
			log.Fatal(err)
		}

		filters, err := app.Filters(false, true)
		if err != nil {
			log.Fatal(err)
		}

		volumes, err := client.GetVolumes(cl, context.Background(), app.Server, filters)
		if err != nil {
			log.Fatal(err)
		}

		headers := []string{i18n.G("NAME"), i18n.G("ON SERVER")}

		table, err := formatter.CreateTable()
		if err != nil {
			log.Fatal(err)
		}

		table.Headers(headers...)

		var rows [][]string
		for _, volume := range volumes {
			row := []string{volume.Name, volume.Mountpoint}
			rows = append(rows, row)
		}

		table.Rows(rows...)

		if len(rows) > 0 {
			if err := formatter.PrintTable(table); err != nil {
				log.Fatal(err)
			}
			return
		}

		log.Warn(i18n.G("no volumes created for %s", app.Name))
	},
}

var AppVolumeRemoveCommand = &cobra.Command{
	Use:   i18n.G("remove <domain> [volume] [flags]"),
	Short: i18n.G("Remove volume(s) associated with an app"),
	Long: i18n.G(`Remove volumes associated with an app.

The app in question must be undeployed before you try to remove volumes. See
"abra app undeploy <domain>" for more.

The command is interactive and will show a multiple select input which allows
you to make a seclection. Use the "?" key to see more help on navigating this
interface.

Passing "--force/-f" will select all volumes for removal. Be careful.`),
	Example: i18n.G(`  # delete volumes interactively
  abra app volume rm 1312.net

  # delete specific volume
  abra app volume rm 1312.net my_volume`),
	Aliases: []string{i18n.G("rm")},
	Args:    cobra.MinimumNArgs(1),
	ValidArgsFunction: func(
		cmd *cobra.Command,
		args []string,
		toComplete string) ([]string, cobra.ShellCompDirective) {
		return autocomplete.AppNameComplete()
	},
	Run: func(cmd *cobra.Command, args []string) {
		app := internal.ValidateApp(args)

		var volumeToDelete string
		if len(args) == 2 {
			volumeToDelete = args[1]
		}

		cl, err := client.New(app.Server)
		if err != nil {
			log.Fatal(err)
		}

		deployMeta, err := stack.IsDeployed(context.Background(), cl, app.StackName())
		if err != nil {
			log.Fatal(err)
		}

		if deployMeta.IsDeployed {
			log.Fatal(i18n.G("%s is still deployed. Run \"abra app undeploy %s\"", app.Name, app.Name))
		}

		filters, err := app.Filters(false, true)
		if err != nil {
			log.Fatal(err)
		}

		volumeList, err := client.GetVolumes(cl, context.Background(), app.Server, filters)
		if err != nil {
			log.Fatal(err)
		}
		volumeNames := client.GetVolumeNames(volumeList)

		if volumeToDelete != "" {
			var exactMatch bool

			fullVolumeToDeleteName := fmt.Sprintf("%s_%s", app.StackName(), volumeToDelete)
			for _, volName := range volumeNames {
				if volName == fullVolumeToDeleteName {
					exactMatch = true
				}
			}

			if !exactMatch {
				log.Fatal(i18n.G("unable to remove volume: no volume with name '%s'?", volumeToDelete))
			}

			err := client.RemoveVolumes(cl, context.Background(), []string{fullVolumeToDeleteName}, internal.Force, 5)
			if err != nil {
				log.Fatal(i18n.G("removing volume %s failed: %s", volumeToDelete, err))
			}

			log.Info(i18n.G("volume %s removed successfully", volumeToDelete))

			return
		}

		var volumesToRemove []string
		if !internal.Force && !internal.NoInput {
			volumesPrompt := &survey.MultiSelect{
				Message: i18n.G("which volumes do you want to remove?"),
				Help:    i18n.G("'x' indicates selected, enter / return to confirm, ctrl-c to exit, vim mode is enabled"),
				VimMode: true,
				Options: volumeNames,
				Default: volumeNames,
			}
			if err := survey.AskOne(volumesPrompt, &volumesToRemove); err != nil {
				log.Fatal(err)
			}
		}

		if internal.Force || internal.NoInput {
			volumesToRemove = volumeNames
		}

		if len(volumesToRemove) > 0 {
			err := client.RemoveVolumes(cl, context.Background(), volumesToRemove, internal.Force, 5)
			if err != nil {
				log.Fatal(i18n.G("removing volumes failed: %s", err))
			}

			log.Info(i18n.G("%d volumes removed successfully", len(volumesToRemove)))
		} else {
			log.Info(i18n.G("no volumes removed"))
		}
	},
}

var AppVolumeCommand = &cobra.Command{
	Use:     i18n.G("volume [cmd] [args] [flags]"),
	Aliases: []string{i18n.G("vl")},
	Short:   i18n.G("Manage app volumes"),
}

func init() {
	AppVolumeRemoveCommand.Flags().BoolVarP(
		&internal.Force,
		i18n.G("force"),
		i18n.G("f"),
		false,
		i18n.G("perform action without further prompt"),
	)
}