package netmap

import (
	"context"
	"fmt"

	"git.frostfs.info/TrueCloudLab/frostfs-contract/netmap"
	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client"
)

// UpdatePeerPrm groups parameters of UpdatePeerState operation.
type UpdatePeerPrm struct {
	key []byte

	state netmap.NodeState

	client.InvokePrmOptional
}

// SetKey sets public key.
func (u *UpdatePeerPrm) SetKey(key []byte) {
	u.key = key
}

// SetOnline marks node to be switched into "online" state.
//
// Zero UpdatePeerPrm marks node as "offline".
func (u *UpdatePeerPrm) SetOnline() {
	u.state = netmap.NodeStateOnline
}

// SetMaintenance marks node to be switched into "maintenance" state.
//
// Zero UpdatePeerPrm marks node as "offline".
func (u *UpdatePeerPrm) SetMaintenance() {
	u.state = netmap.NodeStateMaintenance
}

// UpdatePeerState changes peer status through Netmap contract call.
func (c *Client) UpdatePeerState(ctx context.Context, p UpdatePeerPrm) (uint32, error) {
	method := updateStateMethod

	if c.client.WithNotary() && c.client.IsAlpha() {
		// In notary environments Alphabet must calls UpdateStateIR method instead of UpdateState.
		// It differs from UpdateState only by name, so we can do this in the same form.
		// See https://github.com/nspcc-dev/frostfs-contract/issues/225.
		method += "IR"
	}

	if p.state == 0 {
		p.state = netmap.NodeStateOffline
	}

	prm := client.InvokePrm{}
	prm.SetMethod(method)
	prm.SetArgs(int64(p.state), p.key)
	prm.InvokePrmOptional = p.InvokePrmOptional

	res, err := c.client.Invoke(ctx, prm)
	if err != nil {
		return 0, fmt.Errorf("could not invoke smart contract: %w", err)
	}
	return res.VUB, nil
}