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proposal.go
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proposal.go
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package keeper
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
fxtypes "github.com/functionx/fx-core/v3/types"
"github.com/functionx/fx-core/v3/x/crosschain/types"
)
type proposalServer interface {
UpdateChainOraclesProposal(ctx sdk.Context, proposal *types.UpdateChainOraclesProposal) error
}
var _ proposalServer = Keeper{}
func (k Keeper) UpdateChainOraclesProposal(ctx sdk.Context, proposal *types.UpdateChainOraclesProposal) error {
k.Logger(ctx).Info("handle update chain oracles proposal", "proposal", proposal.String())
if len(proposal.Oracles) > types.MaxOracleSize {
return sdkerrors.Wrapf(types.ErrInvalid,
fmt.Sprintf("oracle length must be less than or equal: %d", types.MaxOracleSize))
}
newOracleMap := make(map[string]bool, len(proposal.Oracles))
for _, oracle := range proposal.Oracles {
newOracleMap[oracle] = true
}
var unbondedOracleList []types.Oracle
totalPower, deleteTotalPower := sdk.ZeroInt(), sdk.ZeroInt()
allOracles := k.GetAllOracles(ctx, false)
proposalOracle, _ := k.GetProposalOracle(ctx)
oldOracleMap := make(map[string]bool, len(proposal.Oracles))
for _, oracle := range proposalOracle.Oracles {
oldOracleMap[oracle] = true
}
for _, oracle := range allOracles {
if oracle.Online {
totalPower = totalPower.Add(oracle.GetPower())
}
// oracle in new proposal
if _, ok := newOracleMap[oracle.OracleAddress]; ok {
continue
}
// oracle not in new proposal and oracle in old proposal
if _, ok := oldOracleMap[oracle.OracleAddress]; ok {
unbondedOracleList = append(unbondedOracleList, oracle)
if oracle.Online {
deleteTotalPower = deleteTotalPower.Add(oracle.GetPower())
}
}
}
maxChangePowerThreshold := types.AttestationProposalOracleChangePowerThreshold.Mul(totalPower).Quo(sdk.NewInt(100))
k.Logger(ctx).Info("update chain oracles proposal",
"maxChangePowerThreshold", maxChangePowerThreshold.String(), "deleteTotalPower", deleteTotalPower.String())
if deleteTotalPower.GT(sdk.ZeroInt()) && deleteTotalPower.GTE(maxChangePowerThreshold) {
return sdkerrors.Wrapf(types.ErrInvalid, "max change power, "+
"maxChangePowerThreshold: %s, deleteTotalPower: %s", maxChangePowerThreshold.String(), deleteTotalPower.String())
}
// update proposal oracle
k.SetProposalOracle(ctx, &types.ProposalOracle{Oracles: proposal.Oracles})
for _, unbondedOracle := range unbondedOracleList {
if err := k.UnbondedOracleFromProposal(ctx, unbondedOracle); err != nil {
return err
}
}
return nil
}
func (k Keeper) UnbondedOracleFromProposal(ctx sdk.Context, oracle types.Oracle) error {
delegateAddr := oracle.GetDelegateAddress(k.moduleName)
valAddr := oracle.GetValidator()
getOracleDelegateToken, err := k.GetOracleDelegateToken(ctx, delegateAddr, valAddr)
if err != nil {
return err
}
msgUndelegate := stakingtypes.NewMsgUndelegate(delegateAddr, valAddr, sdk.NewCoin(fxtypes.DefaultDenom, getOracleDelegateToken))
if _, err = k.stakingMsgServer.Undelegate(sdk.WrapSDKContext(ctx), msgUndelegate); err != nil {
return err
}
oracle.Online = false
k.SetOracle(ctx, oracle)
return nil
}