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// Copyright (C) 2019-2023 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 datatest
import (
"context"
"fmt"
"github.com/algorand/go-algorand/agreement"
"github.com/algorand/go-algorand/config"
"github.com/algorand/go-algorand/crypto"
"github.com/algorand/go-algorand/data"
"github.com/algorand/go-algorand/data/basics"
"github.com/algorand/go-algorand/data/bookkeeping"
"github.com/algorand/go-algorand/data/committee"
"github.com/algorand/go-algorand/protocol"
)
// This file is a copy of node/impls.go.
type entryValidatorImpl struct {
l *data.Ledger
}
type validatedBlock struct {
blk *bookkeeping.Block
}
// Validate implements BlockValidator.Validate.
func (i entryValidatorImpl) Validate(ctx context.Context, e bookkeeping.Block) (agreement.ValidatedBlock, error) {
ve := validatedBlock{
blk: &e,
}
return ve, nil
}
type entryFactoryImpl struct {
l *data.Ledger
}
// AssembleBlock implements Ledger.AssembleBlock.
func (i entryFactoryImpl) AssembleBlock(round basics.Round) (agreement.ValidatedBlock, error) {
prev, err := i.l.BlockHdr(round - 1)
if err != nil {
return nil, fmt.Errorf("could not make proposals: could not read block from ledger at round %v: %v", round, err)
}
b := bookkeeping.MakeBlock(prev)
b.RewardsState = prev.RewardsState
return validatedBlock{blk: &b}, nil
}
// WithSeed implements the agreement.ValidatedBlock interface.
func (ve validatedBlock) WithSeed(s committee.Seed) agreement.ValidatedBlock {
newblock := ve.blk.WithSeed(s)
return validatedBlock{blk: &newblock}
}
// Block implements the agreement.ValidatedBlock interface.
func (ve validatedBlock) Block() bookkeeping.Block {
return *ve.blk
}
type ledgerImpl struct {
l *data.Ledger
}
// NextRound implements Ledger.NextRound.
func (i ledgerImpl) NextRound() basics.Round {
return i.l.NextRound()
}
func (i ledgerImpl) Seed(r basics.Round) (committee.Seed, error) {
block, err := i.l.BlockHdr(r)
if err != nil {
return committee.Seed{}, err
}
return block.Seed, nil
}
func (i ledgerImpl) LookupDigest(r basics.Round) (crypto.Digest, error) {
blockhdr, err := i.l.BlockHdr(r)
if err != nil {
return crypto.Digest{}, err
}
return crypto.Digest(blockhdr.Hash()), nil
}
// Lookup implements Ledger.LookupAgreement.
func (i ledgerImpl) LookupAgreement(r basics.Round, addr basics.Address) (basics.OnlineAccountData, error) {
a, err := i.l.LookupAgreement(r, addr)
return a, err
}
// Circulation implements Ledger.Circulation.
func (i ledgerImpl) Circulation(r basics.Round, voteRnd basics.Round) (basics.MicroAlgos, error) {
return i.l.Circulation(r, voteRnd)
}
// Wait implements Ledger.Wait.
func (i ledgerImpl) Wait(r basics.Round) chan struct{} {
return i.l.Wait(r)
}
// EnsureValidatedBlock implements Ledger.EnsureValidatedBlock.
func (i ledgerImpl) EnsureValidatedBlock(e agreement.ValidatedBlock, c agreement.Certificate) {
i.l.EnsureBlock(e.(validatedBlock).blk, c)
}
// EnsureBlock implements Ledger.EnsureBlock.
func (i ledgerImpl) EnsureBlock(e bookkeeping.Block, c agreement.Certificate) {
i.l.EnsureBlock(&e, c)
}
// ConsensusParams implements Ledger.ConsensusParams.
func (i ledgerImpl) ConsensusParams(r basics.Round) (config.ConsensusParams, error) {
return i.l.ConsensusParams(r)
}
// ConsensusParams implements Ledger.ConsensusVersion.
func (i ledgerImpl) ConsensusVersion(r basics.Round) (protocol.ConsensusVersion, error) {
return i.l.ConsensusVersion(r)
}
// EnsureDigest implements Ledger.EnsureDigest.
func (i ledgerImpl) EnsureDigest(cert agreement.Certificate, verifier *agreement.AsyncVoteVerifier) {
r := cert.Round
consistencyCheck := func() bool {
if r < i.NextRound() {
b, err := i.l.Block(r)
if err != nil {
panic(err)
}
if b.Digest() != cert.Proposal.BlockDigest {
err := fmt.Errorf("testLedger.EnsureDigest called with conflicting entries in round %v", r)
panic(err)
}
return true
}
return false
}
if consistencyCheck() {
return
}
}
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