package control

import (
	"errors"

	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
	rawclient "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-cli/internal/commonflags"
	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-cli/internal/key"
	commonCmd "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/internal/common"
	ircontrol "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/control/ir"
	ircontrolsrv "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/control/ir/server"
	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
	"github.com/spf13/cobra"
)

const (
	ownerFlag = "owner"
)

var removeContainerCmd = &cobra.Command{
	Use:   "remove-container",
	Short: "Schedules a container removal",
	Long: `Schedules a container removal via a notary request.
Container data will be deleted asynchronously by policer.
To check removal status "frostfs-cli container list" command can be used.`,
	Run: removeContainer,
}

func initControlIRRemoveContainerCmd() {
	initControlIRFlags(removeContainerCmd)

	flags := removeContainerCmd.Flags()
	flags.String(commonflags.CIDFlag, "", commonflags.CIDFlagUsage)
	flags.String(ownerFlag, "", "Container owner's wallet address.")
	removeContainerCmd.MarkFlagsMutuallyExclusive(commonflags.CIDFlag, ownerFlag)
}

func removeContainer(cmd *cobra.Command, _ []string) {
	req := prepareRemoveContainerRequest(cmd)

	pk := key.Get(cmd)
	c := getClient(cmd, pk)

	commonCmd.ExitOnErr(cmd, "could not sign request: %w", ircontrolsrv.SignMessage(pk, req))

	var resp *ircontrol.RemoveContainerResponse
	err := c.ExecRaw(func(client *rawclient.Client) error {
		var err error
		resp, err = ircontrol.RemoveContainer(client, req)
		return err
	})
	commonCmd.ExitOnErr(cmd, "failed to execute request: %w", err)

	verifyResponse(cmd, resp.GetSignature(), resp.GetBody())

	if len(req.GetBody().GetContainerId()) > 0 {
		cmd.Println("Container scheduled to removal")
	} else {
		cmd.Println("User containers sheduled to removal")
	}
	printVUB(cmd, resp.GetBody().GetVub())
}

func prepareRemoveContainerRequest(cmd *cobra.Command) *ircontrol.RemoveContainerRequest {
	req := &ircontrol.RemoveContainerRequest{
		Body: &ircontrol.RemoveContainerRequest_Body{},
	}

	cidStr, err := cmd.Flags().GetString(commonflags.CIDFlag)
	commonCmd.ExitOnErr(cmd, "failed to get cid: ", err)

	ownerStr, err := cmd.Flags().GetString(ownerFlag)
	commonCmd.ExitOnErr(cmd, "failed to get owner: ", err)

	if len(ownerStr) == 0 && len(cidStr) == 0 {
		commonCmd.ExitOnErr(cmd, "invalid usage: %w", errors.New("neither owner's wallet address nor container ID are specified"))
	}

	if len(ownerStr) > 0 {
		var owner user.ID
		commonCmd.ExitOnErr(cmd, "invalid owner ID: %w", owner.DecodeString(ownerStr))
		var ownerID refs.OwnerID
		owner.WriteToV2(&ownerID)
		req.Body.Owner = ownerID.StableMarshal(nil)
	}

	if len(cidStr) > 0 {
		var containerID cid.ID
		commonCmd.ExitOnErr(cmd, "invalid container ID: %w", containerID.DecodeString(cidStr))
		req.Body.ContainerId = containerID[:]
	}

	req.Body.Vub = parseVUB(cmd)

	return req
}