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icqcallbacks_community_pool_ica_balance.go
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icqcallbacks_community_pool_ica_balance.go
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package keeper
import (
sdkmath "cosmossdk.io/math"
sdk "github.com/cosmos/cosmos-sdk/types"
proto "github.com/cosmos/gogoproto/proto"
errorsmod "cosmossdk.io/errors"
"github.com/Stride-Labs/stride/v18/utils"
icqkeeper "github.com/Stride-Labs/stride/v18/x/interchainquery/keeper"
icqtypes "github.com/Stride-Labs/stride/v18/x/interchainquery/types"
"github.com/Stride-Labs/stride/v18/x/stakeibc/types"
)
// CommunityPoolBalanceCallback is a callback handler for CommunityPoolBalance queries.
// The query response will return the balance for a specific denom in the deposit or return ica
// If the address queried was the deposit ICA address, call TransferCommunityPoolDepositToHolding
// If the address queried was the return ICA address, call FundCommunityPool
// Note: for now, to get proofs in your ICQs, you need to query the entire store on the host zone! e.g. "store/bank/key"
func CommunityPoolIcaBalanceCallback(k Keeper, ctx sdk.Context, args []byte, query icqtypes.Query) error {
k.Logger(ctx).Info(utils.LogICQCallbackWithHostZone(query.ChainId, ICQCallbackID_CommunityPoolIcaBalance,
"Starting community pool balance callback, QueryId: %vs, QueryType: %s, Connection: %s",
query.Id, query.QueryType, query.ConnectionId))
// Confirm host exists
chainId := query.ChainId
hostZone, found := k.GetHostZone(ctx, chainId)
if !found {
return errorsmod.Wrapf(types.ErrHostZoneNotFound, "no registered zone for queried chain ID (%s)", chainId)
}
// Unmarshal the query response args to determine the balance, denom, and icaType
// get amount from the query response, get denom and icaType from marshalled callback data
amount, err := icqkeeper.UnmarshalAmountFromBalanceQuery(k.cdc, args)
if err != nil {
return errorsmod.Wrap(err, "unable to determine amount from query response")
}
// Unmarshal the callback data containing the denom being queried
var callbackData types.CommunityPoolBalanceQueryCallback
if err := proto.Unmarshal(query.CallbackData, &callbackData); err != nil {
return errorsmod.Wrapf(err, "unable to unmarshal community pool balance query callback data")
}
icaType := callbackData.IcaType
denom := callbackData.Denom
k.Logger(ctx).Info(utils.LogICQCallbackWithHostZone(chainId, ICQCallbackID_CommunityPoolIcaBalance,
"Query response - Community Pool Balance: %+v %s %s", amount, icaType.String(), denom))
// Confirm the balance is greater than zero for now...
// ...perhaps use a positive threshold in the future to avoid work when transfer would be small
if amount.LTE(sdkmath.ZeroInt()) {
k.Logger(ctx).Info(utils.LogICQCallbackWithHostZone(chainId, ICQCallbackID_CommunityPoolIcaBalance,
"No need to transfer tokens -- not enough found %v %s", amount, denom))
return nil
}
token := sdk.NewCoin(denom, amount)
// Based on the account type, we kick off the relevant ICA (transfer or fund)
// If either of the ICAs fails midway through it's invocation, we swallow the
// error and revert any partial state so that the query response submission can finish
if icaType == types.ICAAccountType_COMMUNITY_POOL_DEPOSIT {
// Send ICA msg to kick off transfer from deposit ICA to stake holding address
err := utils.ApplyFuncIfNoError(ctx, func(c sdk.Context) error {
return k.TransferCommunityPoolDepositToHolding(ctx, hostZone, token)
})
if err != nil {
k.Logger(ctx).Error(utils.LogICQCallbackWithHostZone(chainId, ICQCallbackID_CommunityPoolIcaBalance,
"Initiating transfer to holding address failed: %s", err.Error()))
}
} else if icaType == types.ICAAccountType_COMMUNITY_POOL_RETURN {
// Send ICA msg to FundCommunityPool with token found in return ICA
err := utils.ApplyFuncIfNoError(ctx, func(c sdk.Context) error {
return k.FundCommunityPool(ctx, hostZone, token)
})
if err != nil {
k.Logger(ctx).Error(utils.LogICQCallbackWithHostZone(chainId, ICQCallbackID_CommunityPoolIcaBalance,
"Initiating community pool fund failed: %s", err.Error()))
}
}
return nil
}