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proposal_handler.go
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proposal_handler.go
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package entity
import (
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
govtypes "github.com/cosmos/cosmos-sdk/x/gov/types"
"github.com/ixofoundation/ixo-blockchain/v2/x/entity/keeper"
"github.com/ixofoundation/ixo-blockchain/v2/x/entity/types"
nft "github.com/ixofoundation/ixo-blockchain/v2/x/entity/types/contracts"
)
const (
EntityNftContractName = "entity_nft"
EntityNftContractSymbol = "entity"
)
// NewParamChangeProposalHandler creates a new governance Handler for a ParamChangeProposal
func NewEntityParamChangeProposalHandler(k keeper.Keeper) govtypes.Handler {
return func(ctx sdk.Context, content govtypes.Content) error {
switch c := content.(type) {
case *types.InitializeNftContract:
return handleTokenParameterChangeProposal(ctx, k, c)
default:
return sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unrecognized param proposal content type: %T", c)
}
}
}
func handleTokenParameterChangeProposal(ctx sdk.Context, k keeper.Keeper, p *types.InitializeNftContract) error {
var xx types.Params
k.ParamSpace.GetParamSetIfExists(ctx, &xx)
adminAddr := authtypes.NewModuleAddress(types.NftModuleAddress())
senderAddr, err := sdk.AccAddressFromBech32(p.NftMinterAddress)
if err != nil {
return err
}
initiateNftContractMsg := nft.InitiateNftContract{
Name: EntityNftContractName,
Symbol: EntityNftContractSymbol,
Minter: adminAddr.String(),
}
encodedInitiateNftContractMsg, err := nft.Marshal(initiateNftContractMsg)
if err != nil {
return err
}
contractAddr, _, err := k.WasmKeeper.Instantiate(ctx, p.NftContractCodeId, senderAddr, adminAddr, encodedInitiateNftContractMsg, "initiate_entity_nft_contract", sdk.NewCoins(sdk.NewCoin("uixo", sdk.ZeroInt())))
if err != nil {
// return nil as still want proposal to pass even though contractCode doest'n exist yet (for entity module bootstrap purposes)
// if error it means proposal is just like empty proposal, look into returning error in future
return nil
}
xx.NftContractAddress = contractAddr.String()
xx.NftContractMinter = initiateNftContractMsg.Minter
k.ParamSpace.SetParamSet(ctx, &xx)
return nil
}