package proxy

import (
	"fmt"

	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-adm/internal/modules/morph/constants"
	morphUtil "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-adm/internal/modules/morph/util"
	commonCmd "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/internal/common"
	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
	"github.com/nspcc-dev/neo-go/pkg/io"
	"github.com/nspcc-dev/neo-go/pkg/rpcclient/management"
	"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
	"github.com/nspcc-dev/neo-go/pkg/util"
	"github.com/nspcc-dev/neo-go/pkg/vm/emit"
	"github.com/spf13/cobra"
	"github.com/spf13/viper"
)

const (
	accountAddressFlag = "account"
)

func addProxyAccount(cmd *cobra.Command, _ []string) {
	acc, _ := cmd.Flags().GetString(accountAddressFlag)
	addr, err := address.StringToUint160(acc)
	commonCmd.ExitOnErr(cmd, "invalid account: %w", err)
	err = processAccount(cmd, addr, "addAccount")
	commonCmd.ExitOnErr(cmd, "processing error: %w", err)
}

func removeProxyAccount(cmd *cobra.Command, _ []string) {
	acc, _ := cmd.Flags().GetString(accountAddressFlag)
	addr, err := address.StringToUint160(acc)
	commonCmd.ExitOnErr(cmd, "invalid account: %w", err)
	err = processAccount(cmd, addr, "removeAccount")
	commonCmd.ExitOnErr(cmd, "processing error: %w", err)
}

func processAccount(cmd *cobra.Command, addr util.Uint160, method string) error {
	wCtx, err := morphUtil.NewInitializeContext(cmd, viper.GetViper())
	if err != nil {
		return fmt.Errorf("can't to initialize context: %w", err)
	}

	r := management.NewReader(wCtx.ReadOnlyInvoker)
	cs, err := r.GetContractByID(1)
	if err != nil {
		return fmt.Errorf("can't get NNS contract info: %w", err)
	}

	proxyHash, err := morphUtil.NNSResolveHash(wCtx.ReadOnlyInvoker, cs.Hash, morphUtil.DomainOf(constants.ProxyContract))
	if err != nil {
		return fmt.Errorf("can't get proxy contract hash: %w", err)
	}

	bw := io.NewBufBinWriter()
	emit.AppCall(bw.BinWriter, proxyHash, method, callflag.All, addr)

	if err := wCtx.SendConsensusTx(bw.Bytes()); err != nil {
		return err
	}

	if err = wCtx.AwaitTx(); err != nil {
		return err
	}

	cmd.Println("Proxy contract has been updated")

	return nil
}