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hooks.go
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hooks.go
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package paramHub
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/gov"
"github.com/cosmos/cosmos-sdk/x/paramHub/types"
"github.com/tendermint/go-amino"
)
//--------------------- FeeChangeHooks -----------------
type FeeChangeHooks struct {
cdc *amino.Codec
}
func NewFeeChangeHooks(cdc *amino.Codec) FeeChangeHooks {
return FeeChangeHooks{cdc}
}
var _ gov.GovHooks = FeeChangeHooks{}
func (hooks FeeChangeHooks) OnProposalSubmitted(ctx sdk.Context, proposal gov.Proposal) error {
if proposal.GetProposalType() != gov.ProposalTypeFeeChange {
panic(fmt.Sprintf("received wrong type of proposal %x", proposal.GetProposalType()))
}
feeParams := types.FeeChangeParams{}
err := hooks.cdc.UnmarshalJSON([]byte(proposal.GetDescription()), &feeParams)
if err != nil {
return fmt.Errorf("unmarshal feeParam error, err=%s", err.Error())
}
return feeParams.Check()
}
//--------------------- CSCParamsChangeHook -----------------
type CSCParamsChangeHooks struct {
cdc *amino.Codec
}
func NewCSCParamsChangeHook(cdc *amino.Codec) CSCParamsChangeHooks {
return CSCParamsChangeHooks{cdc}
}
var _ gov.GovHooks = CSCParamsChangeHooks{}
func (hooks CSCParamsChangeHooks) OnProposalSubmitted(ctx sdk.Context, proposal gov.Proposal) error {
if proposal.GetProposalType() != gov.ProposalTypeCSCParamsChange {
panic(fmt.Sprintf("received wrong type of proposal %x", proposal.GetProposalType()))
}
var changeParam types.CSCParamChange
strProposal := proposal.GetDescription()
err := hooks.cdc.UnmarshalJSON([]byte(strProposal), &changeParam)
if err != nil {
return fmt.Errorf("get broken data when unmarshal CSCParamChange msg. proposalId %d, err %v", proposal.GetProposalID(), err)
}
return changeParam.Check()
}
//--------------------- SCParamsChangeHook -----------------
type SCParamsChangeHooks struct {
cdc *amino.Codec
}
func NewSCParamsChangeHook(cdc *amino.Codec) SCParamsChangeHooks {
return SCParamsChangeHooks{cdc}
}
var _ gov.GovHooks = SCParamsChangeHooks{}
func (hooks SCParamsChangeHooks) OnProposalSubmitted(ctx sdk.Context, proposal gov.Proposal) error {
if proposal.GetProposalType() != gov.ProposalTypeSCParamsChange {
panic(fmt.Sprintf("received wrong type of proposal %x", proposal.GetProposalType()))
}
var changeParam types.SCChangeParams
strProposal := proposal.GetDescription()
err := hooks.cdc.UnmarshalJSON([]byte(strProposal), &changeParam)
if err != nil {
return fmt.Errorf("get broken data when unmarshal SCParamsChange msg. proposalId %d, err %v", proposal.GetProposalID(), err)
}
return changeParam.Check()
}
//--------------------- BCParamsChangeHook -----------------
type BCParamsChangeHooks struct {
cdc *amino.Codec
}
func NewBCParamsChangeHook(cdc *amino.Codec) BCParamsChangeHooks {
return BCParamsChangeHooks{cdc}
}
var _ gov.GovHooks = BCParamsChangeHooks{}
func (hooks BCParamsChangeHooks) OnProposalSubmitted(ctx sdk.Context, proposal gov.Proposal) error {
// enable after BEP159
if !sdk.IsUpgrade(sdk.BEP159) {
return nil
}
if proposal.GetProposalType() != gov.ProposalTypeParameterChange {
panic(fmt.Sprintf("received wrong type of proposal %x", proposal.GetProposalType()))
}
var changeParam types.BCChangeParams
strProposal := proposal.GetDescription()
err := hooks.cdc.UnmarshalJSON([]byte(strProposal), &changeParam)
if err != nil {
return fmt.Errorf("get broken data when unmarshal BCParamsChange msg. proposalId %d, err %v", proposal.GetProposalID(), err)
}
return changeParam.Check()
}