// XDCx - Decentralized Exchange Stub for geth 1.17 compatibility
// Full implementation requires adaptation of trie/state interfaces
package XDCx

import (
	"github.com/ethereum/go-ethereum/common"
	"github.com/ethereum/go-ethereum/ethdb"
)

// XDCx is the main DEX engine (stub)
type XDCx struct {
	db ethdb.Database
}

// New creates a new XDCx engine
func New(db ethdb.Database) *XDCx {
	return &XDCx{db: db}
}

// ProcessOrder is a stub for order processing
func (x *XDCx) ProcessOrder(pair common.Hash, order interface{}) error {
	return nil
}

// GetOrderBook returns nil (stub)
func (x *XDCx) GetOrderBook(pair common.Hash) interface{} {
	return nil
}