moved wallet builder backend to pchain

vms/platformvm/txs/backends/backends.go

@@ -0,0 +1,35 @@
+// Copyright (C) 2019-2024, Ava Labs, Inc. All rights reserved.
+// See the file LICENSE for licensing terms.
+
+package backends
+
+import (
+	"github.com/ava-labs/avalanchego/ids"
+	"github.com/ava-labs/avalanchego/vms/components/avax"
+	"github.com/ava-labs/avalanchego/vms/platformvm/fx"
+
+	stdcontext "context"
+)
+
+var (
+	_ BuilderBackend = WalletBackend(nil)
+	_ SignerBackend  = WalletBackend(nil)
+)
+
+type WalletBackend interface {
+	Context
+	UTXOs(ctx stdcontext.Context, sourceChainID ids.ID) ([]*avax.UTXO, error)
+	GetSubnetOwner(ctx stdcontext.Context, subnetID ids.ID) (fx.Owner, error)
+	GetUTXO(ctx stdcontext.Context, chainID, utxoID ids.ID) (*avax.UTXO, error)
+}
+
+type SignerBackend interface {
+	GetUTXO(ctx stdcontext.Context, chainID, utxoID ids.ID) (*avax.UTXO, error)
+	GetSubnetOwner(ctx stdcontext.Context, subnetID ids.ID) (fx.Owner, error)
+}
+
+type BuilderBackend interface {
+	Context
+	UTXOs(ctx stdcontext.Context, sourceChainID ids.ID) ([]*avax.UTXO, error)
+	GetSubnetOwner(ctx stdcontext.Context, subnetID ids.ID) (fx.Owner, error)
+}

vms/platformvm/txs/backends/context.go

@@ -0,0 +1,100 @@
+// Copyright (C) 2019-2024, Ava Labs, Inc. All rights reserved.
+// See the file LICENSE for licensing terms.
+
+package backends
+
+import "github.com/ava-labs/avalanchego/ids"
+
+var _ Context = (*builderCtx)(nil)
+
+type Context interface {
+	NetworkID() uint32
+	AVAXAssetID() ids.ID
+	BaseTxFee() uint64
+	CreateSubnetTxFee() uint64
+	TransformSubnetTxFee() uint64
+	CreateBlockchainTxFee() uint64
+	AddPrimaryNetworkValidatorFee() uint64
+	AddPrimaryNetworkDelegatorFee() uint64
+	AddSubnetValidatorFee() uint64
+	AddSubnetDelegatorFee() uint64
+}
+
+type builderCtx struct {
+	networkID                     uint32
+	avaxAssetID                   ids.ID
+	baseTxFee                     uint64
+	createSubnetTxFee             uint64
+	transformSubnetTxFee          uint64
+	createBlockchainTxFee         uint64
+	addPrimaryNetworkValidatorFee uint64
+	addPrimaryNetworkDelegatorFee uint64
+	addSubnetValidatorFee         uint64
+	addSubnetDelegatorFee         uint64
+}
+
+func NewContext(
+	networkID uint32,
+	avaxAssetID ids.ID,
+	baseTxFee uint64,
+	createSubnetTxFee uint64,
+	transformSubnetTxFee uint64,
+	createBlockchainTxFee uint64,
+	addPrimaryNetworkValidatorFee uint64,
+	addPrimaryNetworkDelegatorFee uint64,
+	addSubnetValidatorFee uint64,
+	addSubnetDelegatorFee uint64,
+) Context {
+	return &builderCtx{
+		networkID:                     networkID,
+		avaxAssetID:                   avaxAssetID,
+		baseTxFee:                     baseTxFee,
+		createSubnetTxFee:             createSubnetTxFee,
+		transformSubnetTxFee:          transformSubnetTxFee,
+		createBlockchainTxFee:         createBlockchainTxFee,
+		addPrimaryNetworkValidatorFee: addPrimaryNetworkValidatorFee,
+		addPrimaryNetworkDelegatorFee: addPrimaryNetworkDelegatorFee,
+		addSubnetValidatorFee:         addSubnetValidatorFee,
+		addSubnetDelegatorFee:         addSubnetDelegatorFee,
+	}
+}
+
+func (c *builderCtx) NetworkID() uint32 {
+	return c.networkID
+}
+
+func (c *builderCtx) AVAXAssetID() ids.ID {
+	return c.avaxAssetID
+}
+
+func (c *builderCtx) BaseTxFee() uint64 {
+	return c.baseTxFee
+}
+
+func (c *builderCtx) CreateSubnetTxFee() uint64 {
+	return c.createSubnetTxFee
+}
+
+func (c *builderCtx) TransformSubnetTxFee() uint64 {
+	return c.transformSubnetTxFee
+}
+
+func (c *builderCtx) CreateBlockchainTxFee() uint64 {
+	return c.createBlockchainTxFee
+}
+
+func (c *builderCtx) AddPrimaryNetworkValidatorFee() uint64 {
+	return c.addPrimaryNetworkValidatorFee
+}
+
+func (c *builderCtx) AddPrimaryNetworkDelegatorFee() uint64 {
+	return c.addPrimaryNetworkDelegatorFee
+}
+
+func (c *builderCtx) AddSubnetValidatorFee() uint64 {
+	return c.addSubnetValidatorFee
+}
+
+func (c *builderCtx) AddSubnetDelegatorFee() uint64 {
+	return c.addSubnetDelegatorFee
+}

vms/platformvm/txs/signer/signer.go → vms/platformvm/txs/backends/signer.go

@@ -1,13 +1,13 @@
 // Copyright (C) 2019-2024, Ava Labs, Inc. All rights reserved.
 // See the file LICENSE for licensing terms.
 
-package signer
+package backends
 
 import (
-	"context"
-
 	"github.com/ava-labs/avalanchego/utils/crypto/keychain"
 	"github.com/ava-labs/avalanchego/vms/platformvm/txs"
+
+	stdcontext "context"
 )
 
 var _ Signer = (*txSigner)(nil)
@@ -21,22 +21,22 @@ type Signer interface {
 	//
 	// If the signer doesn't have the ability to provide a required signature,
 	// the signature slot will be skipped without reporting an error.
-	Sign(ctx context.Context, tx *txs.Tx) error
+	Sign(ctx stdcontext.Context, tx *txs.Tx) error
 }
 
 type txSigner struct {
 	kc      keychain.Keychain
-	backend Backend
+	backend SignerBackend
 }
 
-func New(kc keychain.Keychain, backend Backend) Signer {
+func New(kc keychain.Keychain, backend SignerBackend) Signer {
 	return &txSigner{
 		kc:      kc,
 		backend: backend,
 	}
 }
 
-func (s *txSigner) Sign(ctx context.Context, tx *txs.Tx) error {
+func (s *txSigner) Sign(ctx stdcontext.Context, tx *txs.Tx) error {
 	return tx.Unsigned.Visit(&Visitor{
 		kc:      s.kc,
 		backend: s.backend,
@@ -46,7 +46,7 @@ func (s *txSigner) Sign(ctx context.Context, tx *txs.Tx) error {
 }
 
 func SignUnsigned(
-	ctx context.Context,
+	ctx stdcontext.Context,
 	s Signer,
 	utx txs.UnsignedTx,
 ) (*txs.Tx, error) {

vms/platformvm/txs/signer/visitor.go → vms/platformvm/txs/backends/signer_visitor.go

@@ -1,7 +1,7 @@
 // Copyright (C) 2019-2024, Ava Labs, Inc. All rights reserved.
 // See the file LICENSE for licensing terms.
 
-package signer
+package backends
 
 import (
 	"context"
@@ -38,7 +38,7 @@ var (
 // Visitor handles signing transactions for the signer
 type Visitor struct {
 	kc      keychain.Keychain
-	backend Backend
+	backend SignerBackend
 	ctx     context.Context
 	tx      *txs.Tx
 }