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// Copyright (C) 2019-2024 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package generator
import (
"encoding/binary"
"github.com/algorand/go-algorand/crypto"
"github.com/algorand/go-algorand/data/basics"
txn "github.com/algorand/go-algorand/data/transactions"
"github.com/algorand/go-algorand/data/txntest"
"github.com/algorand/go-algorand/protocol"
)
// ---- header / boilerplate ----
func (g *generator) makeTxnHeader(sender basics.Address, round, intra uint64) txn.Header {
note := make([]byte, 8)
binary.LittleEndian.PutUint64(note, g.txnCounter+intra)
return txn.Header{
Sender: sender,
Fee: basics.MicroAlgos{Raw: g.params.MinTxnFee},
FirstValid: basics.Round(round),
LastValid: basics.Round(round + 1000),
GenesisID: g.genesisID,
GenesisHash: g.genesisHash,
Note: note,
}
}
// makeTestTxn creates and populates the flat txntest.Txn structure with the given values.
func (g *generator) makeTestTxn(sender basics.Address, round, intra uint64) txntest.Txn {
note := make([]byte, 8)
binary.LittleEndian.PutUint64(note, g.txnCounter+intra)
return txntest.Txn{
Sender: sender,
Fee: basics.MicroAlgos{Raw: g.params.MinTxnFee},
FirstValid: basics.Round(round),
LastValid: basics.Round(round + 1000),
GenesisID: g.genesisID,
GenesisHash: g.genesisHash,
Note: note,
}
}
// ---- payments ----
func (g *generator) makePaymentTxn(header txn.Header, receiver basics.Address, amount uint64, closeRemainderTo basics.Address) txn.Transaction {
return txn.Transaction{
Type: protocol.PaymentTx,
Header: header,
PaymentTxnFields: txn.PaymentTxnFields{
Receiver: receiver,
Amount: basics.MicroAlgos{Raw: amount},
CloseRemainderTo: closeRemainderTo,
},
}
}
// ---- asset transactions ----
func (g *generator) makeAssetCreateTxn(header txn.Header, total uint64, defaultFrozen bool, assetName string) txn.Transaction {
return txn.Transaction{
Type: protocol.AssetConfigTx,
Header: header,
AssetConfigTxnFields: txn.AssetConfigTxnFields{
AssetParams: basics.AssetParams{
Total: total,
DefaultFrozen: defaultFrozen,
AssetName: assetName,
Manager: header.Sender,
Freeze: header.Sender,
Clawback: header.Sender,
Reserve: header.Sender,
},
},
}
}
func (g *generator) makeAssetDestroyTxn(header txn.Header, index uint64) txn.Transaction {
return txn.Transaction{
Type: protocol.AssetConfigTx,
Header: header,
AssetConfigTxnFields: txn.AssetConfigTxnFields{
ConfigAsset: basics.AssetIndex(index),
},
}
}
func (g *generator) makeAssetTransferTxn(header txn.Header, receiver basics.Address, amount uint64, closeAssetsTo basics.Address, index uint64) txn.Transaction {
return txn.Transaction{
Type: protocol.AssetTransferTx,
Header: header,
AssetTransferTxnFields: txn.AssetTransferTxnFields{
XferAsset: basics.AssetIndex(index),
AssetAmount: amount,
AssetReceiver: receiver,
AssetCloseTo: closeAssetsTo,
},
}
}
func (g *generator) makeAssetAcceptanceTxn(header txn.Header, index uint64) txn.Transaction {
return g.makeAssetTransferTxn(header, header.Sender, 0, basics.Address{}, index)
}
// ---- application transactions ----
func (g *generator) makeAppCreateTxn(kind appKind, sender basics.Address, round, intra uint64, futureAppId uint64) []txn.SignedTxn {
var approval, clear interface{}
if kind == appKindSwap {
approval, clear = approvalSwapBytes, clearSwapBytes
} else {
approval, clear = approvalBoxesBytes, clearBoxesBytes
}
createTxn := g.makeTestTxn(sender, round, intra)
createTxn.Type = protocol.ApplicationCallTx
createTxn.ApprovalProgram = approval
createTxn.ClearStateProgram = clear
// max out local/global state usage but split
// 50% between bytes/uint64
createTxn.LocalStateSchema = basics.StateSchema{
NumUint: 8,
NumByteSlice: 8,
}
createTxn.GlobalStateSchema = basics.StateSchema{
NumUint: 32,
NumByteSlice: 32,
}
createTxFee := g.params.MinTxnFee
senderIndex := accountToIndex(sender)
// TODO: should check for min balance
g.balances[senderIndex] -= createTxFee
if kind != appKindBoxes {
return txntest.Group(&createTxn)
}
// also group in a pay txn to fund the app
pstFee := uint64(1_000)
pstAmt := uint64(2_000_000)
paySibTxn := g.makeTestTxn(sender, round, intra)
paySibTxn.Type = protocol.PaymentTx
paySibTxn.Receiver = basics.AppIndex(futureAppId).Address()
paySibTxn.Fee = basics.MicroAlgos{Raw: pstFee}
paySibTxn.Amount = uint64(pstAmt)
// TODO: should check for min balance}
g.balances[senderIndex] -= (pstFee + pstAmt)
return txntest.Group(&createTxn, &paySibTxn)
}
// makeAppOptinTxn currently only works for the boxes app
func (g *generator) makeAppOptinTxn(sender basics.Address, round, intra uint64, kind appKind, appIndex uint64) []txn.SignedTxn {
if kind != appKindBoxes {
panic("makeAppOptinTxn only works for the boxes app currently")
}
optInTxn := g.makeTestTxn(sender, round, intra)
/* all 0 values but keep around for reference
optInTxn.ApplicationArgs = nil
optInTxn.ForeignApps = nil
optInTxn.ForeignAssets = nil
optInTxn.ExtraProgramPages = 0
*/
optInTxn.Type = protocol.ApplicationCallTx
optInTxn.ApplicationID = basics.AppIndex(appIndex)
optInTxn.OnCompletion = txn.OptInOC
// the first inner sends some algo to the creator:
optInTxn.Accounts = []basics.Address{indexToAccount(g.appMap[kind][appIndex].sender)}
optInTxn.Boxes = []txn.BoxRef{
{Name: crypto.Digest(sender).ToSlice()},
}
// TODO: these may not make sense for the swap optin
pstFee := uint64(2_000)
pstAmt := uint64(2_000_000)
paySibTxn := g.makeTestTxn(sender, round, intra)
paySibTxn.Type = protocol.PaymentTx
paySibTxn.Receiver = basics.AppIndex(appIndex).Address()
paySibTxn.Fee = basics.MicroAlgos{Raw: pstFee}
paySibTxn.Amount = uint64(pstAmt)
senderIndex := accountToIndex(sender)
// TODO: should check for min balance}
// TODO: for the case of boxes, should refund 0.76 algo
g.balances[senderIndex] -= (pstFee + pstAmt)
return txntest.Group(&optInTxn, &paySibTxn)
}
// makeAppCallTxn currently only works for the boxes app
func (g *generator) makeAppCallTxn(sender basics.Address, round, intra, appIndex uint64) txn.Transaction {
callTxn := g.makeTestTxn(sender, round, intra)
callTxn.Type = protocol.ApplicationCallTx
callTxn.ApplicationID = basics.AppIndex(appIndex)
callTxn.OnCompletion = txn.NoOpOC // redundant for clarity
callTxn.ApplicationArgs = [][]byte{
{0xe1, 0xf9, 0x3f, 0x1d}, // the method selector for getting a box
}
callTxn.Boxes = []txn.BoxRef{
{Name: crypto.Digest(sender).ToSlice()},
}
// TODO: should check for min balance
appCallTxFee := g.params.MinTxnFee
senderIndex := accountToIndex(sender)
g.balances[senderIndex] -= appCallTxFee
return callTxn.Txn()
}
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