package app

import (
	"fmt"
	"strings"

	"coopcloud.tech/abra/cli/internal"
	"coopcloud.tech/abra/pkg/autocomplete"
	"coopcloud.tech/abra/pkg/client"
	"coopcloud.tech/abra/pkg/i18n"
	"coopcloud.tech/abra/pkg/log"
	"github.com/spf13/cobra"
)

// translators: `abra app restore` aliases. use a comma separated list of
// aliases with no spaces in between
var appRestoreAliases = i18n.G("rs")

var AppRestoreCommand = &cobra.Command{
	// translators: `app restore` command
	Use:     i18n.G("restore <domain> [flags]"),
	Aliases: strings.Split(appRestoreAliases, ","),
	// translators: Short description for `app restore` command
	Short: i18n.G("Restore a snapshot"),
	Long: i18n.G(`Snapshots are restored while apps are deployed.

Some restore scenarios may require service / app restarts.`),
	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)

		if err := app.Recipe.Ensure(internal.GetEnsureContext()); err != nil {
			log.Fatal(err)
		}

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

		targetContainer, err := internal.RetrieveBackupBotContainer(cl)
		if err != nil {
			log.Fatal(err)
		}

		execEnv := []string{
			fmt.Sprintf("SERVICE=%s", app.Domain),
			"MACHINE_LOGS=true",
		}

		if snapshot != "" {
			log.Debug(i18n.G("including SNAPSHOT=%s in backupbot exec invocation", snapshot))
			execEnv = append(execEnv, fmt.Sprintf("SNAPSHOT=%s", snapshot))
		}

		if targetPath != "" {
			log.Debug(i18n.G("including TARGET=%s in backupbot exec invocation", targetPath))
			execEnv = append(execEnv, fmt.Sprintf("TARGET=%s", targetPath))
		}

		if internal.NoInput {
			log.Debug(i18n.G("including NONINTERACTIVE=%v in backupbot exec invocation", internal.NoInput))
			execEnv = append(execEnv, fmt.Sprintf("NONINTERACTIVE=%v", internal.NoInput))
		}

		if len(volumes) > 0 {
			allVolumes := strings.Join(volumes, ",")
			log.Debug(i18n.G("including VOLUMES=%s in backupbot exec invocation", allVolumes))
			execEnv = append(execEnv, fmt.Sprintf("VOLUMES=%s", allVolumes))
		}

		if len(services) > 0 {
			allServices := strings.Join(services, ",")
			log.Debug(i18n.G("including CONTAINER=%s in backupbot exec invocation", allServices))
			execEnv = append(execEnv, fmt.Sprintf("CONTAINER=%s", allServices))
		}

		if hooks {
			log.Debug(i18n.G("including NO_COMMANDS=%v in backupbot exec invocation", false))
			execEnv = append(execEnv, fmt.Sprintf("NO_COMMANDS=%v", false))
		}

		if _, err := internal.RunBackupCmdRemote(cl, "restore", targetContainer.ID, execEnv); err != nil {
			log.Fatal(err)
		}
	},
}

var (
	targetPath string
	hooks      bool
	services   []string
	volumes    []string
)

func init() {
	AppRestoreCommand.Flags().StringVarP(
		&targetPath,
		i18n.G("target"),
		i18n.G("t"),
		"/",
		i18n.G("target path"),
	)

	AppRestoreCommand.Flags().StringArrayVarP(
		&services,
		i18n.G("services"),
		i18n.G("s"),
		[]string{},
		i18n.G("restore specific services"),
	)

	AppRestoreCommand.Flags().StringArrayVarP(
		&volumes,
		i18n.G("volumes"),
		i18n.G("v"),
		[]string{},
		i18n.G("restore specific volumes"),
	)

	AppRestoreCommand.Flags().BoolVarP(
		&hooks,
		i18n.G("hooks"),
		i18n.G("H"),
		false,
		i18n.G("enable pre/post-hook command execution"),
	)

	AppRestoreCommand.Flags().BoolVarP(
		&internal.Chaos,
		i18n.G("chaos"),
		i18n.G("C"),
		false,
		i18n.G("ignore uncommitted recipes changes"),
	)
}