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genesis.go
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genesis.go
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package keeper
import (
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/functionx/fx-core/v6/x/crosschain/types"
)
// InitGenesis import module genesis
//
//gocyclo:ignore
func InitGenesis(ctx sdk.Context, k Keeper, state *types.GenesisState) {
if err := k.SetParams(ctx, &state.Params); err != nil {
panic(err)
}
// 0x24
k.SetLastObservedEventNonce(ctx, state.LastObservedEventNonce)
// 0x32
k.SetLastObservedBlockHeight(ctx, state.LastObservedBlockHeight.ExternalBlockHeight, state.LastObservedBlockHeight.BlockHeight)
// 0x38
k.SetProposalOracle(ctx, &state.ProposalOracle)
// 0x33
k.SetLastObservedOracleSet(ctx, &state.LastObservedOracleSet)
// 0x28
k.SetLastSlashedOracleSetNonce(ctx, state.LastSlashedOracleSetNonce)
// 0x30
k.SetLastSlashedBatchBlock(ctx, state.LastSlashedBatchBlock)
for _, oracle := range state.Oracles {
// 0x12
k.SetOracle(ctx, oracle)
// 0x14
k.SetOracleByBridger(ctx, oracle.GetBridger(), oracle.GetOracle())
// 0x13
k.SetOracleByExternalAddress(ctx, oracle.ExternalAddress, oracle.GetOracle())
}
// 0x39
k.CommonSetOracleTotalPower(ctx)
latestOracleSetNonce := uint64(0)
for i := 0; i < len(state.OracleSets); i++ {
set := state.OracleSets[i]
// 0x15 0x29
if set.Nonce > latestOracleSetNonce {
latestOracleSetNonce = set.Nonce
}
k.StoreOracleSet(ctx, &set)
}
k.SetLatestOracleSetNonce(ctx, latestOracleSetNonce)
for _, bridgeToken := range state.BridgeTokens {
// 0x26 0x27
k.AddBridgeToken(ctx, bridgeToken.Token, bridgeToken.Denom)
}
for i := 0; i < len(state.BatchConfirms); i++ {
confirm := state.BatchConfirms[i]
for _, oracle := range state.Oracles {
if confirm.BridgerAddress == oracle.BridgerAddress {
// 0x22
k.SetBatchConfirm(ctx, oracle.GetOracle(), &confirm)
}
}
}
for i := 0; i < len(state.OracleSetConfirms); i++ {
confirm := state.OracleSetConfirms[i]
for _, oracle := range state.Oracles {
if confirm.BridgerAddress == oracle.BridgerAddress {
// 0x16
k.SetOracleSetConfirm(ctx, oracle.GetOracle(), &confirm)
}
}
}
for i := 0; i < len(state.UnbatchedTransfers); i++ {
transfer := state.UnbatchedTransfers[i]
// 0x18
if err := k.AddUnbatchedTx(ctx, &transfer); err != nil {
panic(err)
}
}
for i := 0; i < len(state.Batches); i++ {
batch := state.Batches[i]
// 0x20 0x21
if err := k.StoreBatch(ctx, &batch); err != nil {
panic(err)
}
}
// reset attestations in state
for i := 0; i < len(state.Attestations); i++ {
att := state.Attestations[i]
claim, err := types.UnpackAttestationClaim(k.cdc, &att)
if err != nil {
panic("couldn't cast to claim")
}
// 0x17
k.SetAttestation(ctx, claim.GetEventNonce(), claim.ClaimHash(), &att)
}
// reset attestation state of specific validators
// this must be done after the above to be correct
for i := 0; i < len(state.Attestations); i++ {
att := state.Attestations[i]
claim, err := types.UnpackAttestationClaim(k.cdc, &att)
if err != nil {
panic("couldn't cast to claim")
}
// reconstruct the latest event nonce for every validator
// if somehow this genesis state is saved when all attestations
// have been cleaned up GetLastEventNonceByOracle handles that case
//
// if we where to save and load the last event nonce for every validator
// then we would need to carry that state forever across all chain restarts
// but since we've already had to handle the edge case of new validators joining
// while all attestations have already been cleaned up we can do this instead and
// not carry around every validators event nonce counter forever.
for _, vote := range att.Votes {
oracle := sdk.MustAccAddressFromBech32(vote)
last := k.GetLastEventNonceByOracle(ctx, oracle)
if claim.GetEventNonce() > last {
// 0x23
k.SetLastEventNonceByOracle(ctx, oracle, claim.GetEventNonce())
// 0x35
k.SetLastEventBlockHeightByOracle(ctx, oracle, claim.GetBlockHeight())
}
}
}
}
// ExportGenesis export module status
func ExportGenesis(ctx sdk.Context, k Keeper) *types.GenesisState {
state := &types.GenesisState{
Params: k.GetParams(ctx),
LastObservedEventNonce: k.GetLastObservedEventNonce(ctx),
LastObservedBlockHeight: k.GetLastObservedBlockHeight(ctx),
}
k.IterateOracle(ctx, func(oracle types.Oracle) bool {
state.Oracles = append(state.Oracles, oracle)
return false
})
k.IterateOracleSets(ctx, false, func(oracleSet *types.OracleSet) bool {
state.OracleSets = append(state.OracleSets, *oracleSet)
return false
})
k.IterateOutgoingTxBatches(ctx, func(batch *types.OutgoingTxBatch) bool {
state.Batches = append(state.Batches, *batch)
return false
})
k.IterateAttestations(ctx, func(attestation *types.Attestation) bool {
state.Attestations = append(state.Attestations, *attestation)
return false
})
k.IterateUnbatchedTransactions(ctx, "", func(tx *types.OutgoingTransferTx) bool {
state.UnbatchedTransfers = append(state.UnbatchedTransfers, *tx)
return false
})
for _, vs := range state.OracleSets {
k.IterateOracleSetConfirmByNonce(ctx, vs.Nonce, func(confirm *types.MsgOracleSetConfirm) bool {
state.OracleSetConfirms = append(state.OracleSetConfirms, *confirm)
return false
})
}
for _, batch := range state.Batches {
k.IterateBatchConfirmByNonceAndTokenContract(ctx, batch.BatchNonce, batch.TokenContract, func(confirm *types.MsgConfirmBatch) bool {
state.BatchConfirms = append(state.BatchConfirms, *confirm)
return false
})
}
k.IterateBridgeTokenToDenom(ctx, func(erc20ToDenom *types.BridgeToken) bool {
state.BridgeTokens = append(state.BridgeTokens, *erc20ToDenom)
return false
})
state.ProposalOracle, _ = k.GetProposalOracle(ctx)
if lastObserved := k.GetLastObservedOracleSet(ctx); lastObserved != nil {
state.LastObservedOracleSet = *lastObserved
}
state.LastSlashedBatchBlock = k.GetLastSlashedBatchBlock(ctx)
state.LastSlashedOracleSetNonce = k.GetLastSlashedOracleSetNonce(ctx)
return state
}