package dex

import (
	"fmt"

	sdk "github.com/cosmos/cosmos-sdk/types"
	capabilitytypes "github.com/cosmos/ibc-go/modules/capability/types"
	channeltypes "github.com/cosmos/ibc-go/v8/modules/core/04-channel/types"
	porttypes "github.com/cosmos/ibc-go/v8/modules/core/05-port/types"
	ibcexported "github.com/cosmos/ibc-go/v8/modules/core/exported"
	"github.com/sonr-io/sonr/x/dex/keeper"
)

var _ porttypes.IBCModule = (*IBCModule)(nil)

// IBCModule implements the IBC module interface for DEX
type IBCModule struct {
	keeper keeper.Keeper
}

// NewIBCModule creates a new IBCModule given the keeper
func NewIBCModule(k keeper.Keeper) IBCModule {
	return IBCModule{
		keeper: k,
	}
}

// OnChanOpenInit implements the IBCModule interface
func (im IBCModule) OnChanOpenInit(
	ctx sdk.Context,
	order channeltypes.Order,
	connectionHops []string,
	portID string,
	channelID string,
	chanCap *capabilitytypes.Capability,
	counterparty channeltypes.Counterparty,
	version string,
) (string, error) {
	// Delegate to keeper's ICA callback handler
	if err := im.keeper.OnChanOpenInit(ctx, order, connectionHops, portID, channelID, counterparty, version); err != nil {
		return "", err
	}
	return version, nil
}

// OnChanOpenTry implements the IBCModule interface
func (im IBCModule) OnChanOpenTry(
	ctx sdk.Context,
	order channeltypes.Order,
	connectionHops []string,
	portID,
	channelID string,
	chanCap *capabilitytypes.Capability,
	counterparty channeltypes.Counterparty,
	counterpartyVersion string,
) (string, error) {
	// TODO: Implement ICA Controller channel handshake
	return counterpartyVersion, nil
}

// OnChanOpenAck implements the IBCModule interface
func (im IBCModule) OnChanOpenAck(
	ctx sdk.Context,
	portID,
	channelID string,
	counterpartyChannelID string,
	counterpartyVersion string,
) error {
	// TODO: Handle ICA Controller channel acknowledgment
	return nil
}

// OnChanOpenConfirm implements the IBCModule interface
func (im IBCModule) OnChanOpenConfirm(
	ctx sdk.Context,
	portID,
	channelID string,
) error {
	// TODO: Finalize ICA Controller channel setup
	return nil
}

// OnChanCloseInit implements the IBCModule interface
func (im IBCModule) OnChanCloseInit(
	ctx sdk.Context,
	portID,
	channelID string,
) error {
	// TODO: Handle ICA Controller channel close
	return nil
}

// OnChanCloseConfirm implements the IBCModule interface
func (im IBCModule) OnChanCloseConfirm(
	ctx sdk.Context,
	portID,
	channelID string,
) error {
	// TODO: Confirm ICA Controller channel close
	return nil
}

// OnRecvPacket implements the IBCModule interface
func (im IBCModule) OnRecvPacket(
	ctx sdk.Context,
	modulePacket channeltypes.Packet,
	relayer sdk.AccAddress,
) ibcexported.Acknowledgement {
	// ICA Controller does not receive packets
	return channeltypes.NewErrorAcknowledgement(
		fmt.Errorf("ICA controller does not receive packets"),
	)
}

// OnAcknowledgementPacket implements the IBCModule interface
func (im IBCModule) OnAcknowledgementPacket(
	ctx sdk.Context,
	modulePacket channeltypes.Packet,
	acknowledgement []byte,
	relayer sdk.AccAddress,
) error {
	// TODO: Handle ICA packet acknowledgments
	return nil
}

// OnTimeoutPacket implements the IBCModule interface
func (im IBCModule) OnTimeoutPacket(
	ctx sdk.Context,
	modulePacket channeltypes.Packet,
	relayer sdk.AccAddress,
) error {
	// TODO: Handle ICA packet timeouts
	return nil
}