package interfaces

import "github.com/ethereum/go-ethereum/common"

// TokenExtractor defines the interface for extracting tokens from transaction data
type TokenExtractor interface {
	// ExtractTokensFromMulticallData extracts token addresses from multicall transaction data
	ExtractTokensFromMulticallData(params []byte) (token0, token1 string)

	// ExtractTokensFromCalldata extracts tokens from raw calldata using known function signatures
	ExtractTokensFromCalldata(calldata []byte) (token0, token1 common.Address, err error)
}

// SwapEvent represents a standardized swap event structure
type SwapEvent struct {
	TokenIn   common.Address
	TokenOut  common.Address
	AmountIn  string
	AmountOut string
	Protocol  string
	Valid     bool
}