DASH: engine implementation

engine/registry.go

@@ -11,6 +11,7 @@ import (
 	"github.com/vultisig/recipes/engine/tron"
 	"github.com/vultisig/recipes/engine/utxo/bitcoin"
 	"github.com/vultisig/recipes/engine/utxo/bitcoincash"
+	"github.com/vultisig/recipes/engine/utxo/dash"
 	"github.com/vultisig/recipes/engine/utxo/dogecoin"
 	"github.com/vultisig/recipes/engine/utxo/litecoin"
 	"github.com/vultisig/recipes/engine/utxo/zcash"
@@ -82,6 +83,9 @@ func NewChainEngineRegistry() (*ChainEngineRegistry, error) {
 	// Register Zcash engine
 	registry.Register(zcash.NewZcash())
 
+	// Register Dash engine
+	registry.Register(dash.NewDash())
+
 	// Register Solana engine
 	solEng, err := solana.NewSolana()
 	if err != nil {

engine/utxo/dash/dash.go

@@ -0,0 +1,39 @@
+package dash
+
+import (
+	chaindash "github.com/vultisig/recipes/chain/utxo/dash"
+	"github.com/vultisig/recipes/engine/utxo"
+	"github.com/vultisig/recipes/types"
+	"github.com/vultisig/vultisig-go/common"
+)
+
+// Dash wraps the generic UTXO engine for Dash.
+type Dash struct {
+	engine *utxo.Engine
+}
+
+// NewDash creates a new Dash engine.
+func NewDash() *Dash {
+	return &Dash{
+		engine: utxo.NewEngine(utxo.Config{
+			ChainID:         "dash",
+			SupportedChains: []common.Chain{common.Dash},
+			NetworkParams:   chaindash.DashMainNetParams,
+		}),
+	}
+}
+
+// Supports returns true if this engine supports the given chain.
+func (d *Dash) Supports(chain common.Chain) bool {
+	return d.engine.Supports(chain)
+}
+
+// Evaluate validates a transaction against the given rule.
+func (d *Dash) Evaluate(rule *types.Rule, txBytes []byte) error {
+	return d.engine.Evaluate(rule, txBytes)
+}
+
+// ExtractTxBytes extracts transaction bytes from a PSBT string.
+func (d *Dash) ExtractTxBytes(txData string) ([]byte, error) {
+	return d.engine.ExtractTxBytes(txData)
+}