0g-chain/x/community/migrations/v2/store.go
Nick DeLuca 102cc0fff3
Community Pool Staking Rewards Implementation & Improvements (#1742)
* add new field upgrade_time_set_staking_rewards_per_second with intention
of integrating into the disable inflation logic to set an initial
staking reward time

* when the disable inflation upgrade time occurs, set the staking rewards
per second to the value specified by the new
upgrade_time_set_staking_rewards_per_second.  This will allow a decoupled
implementation between the ugprade switching logic, and the core
functionality of paying staking rewards from the pool

* add staking rewards state to community keeper and community module
genesis that is required to calculate and track staking reward payouts
accross blocks

* add implementation of staking reward payouts

* remove unused error

* touch up tests and add a test case that fully tests behavior when pool
is drained

* add function comments

* refactor and pull out main calculation to private pure function with
no dependence on keeper

* zero out default parameters -- these are too chain specific to have
useful defaults

* small touch ups on comments, test cases

* use correct Int from sdkmath, not old sdk types; update protonet genesis
for new parmater

* fix copy pasta comment

* use bond denom from staking keeper instead of referncing ukava directly

* add staking reward state for valid genesis

* update kvtool genesis for new params and rewards state
2023-10-03 08:41:54 -07:00

40 lines
760 B
Go

package v2
import (
"time"
storetypes "github.com/cosmos/cosmos-sdk/store/types"
sdkmath "cosmossdk.io/math"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/kava-labs/kava/x/community/types"
)
const (
ModuleName = "mint"
)
// Migrate migrates the x/community module state from the consensus version 1 to
// version 2. Specifically, sets new parameters in the module state.
func Migrate(
ctx sdk.Context,
store storetypes.KVStore,
cdc codec.BinaryCodec,
) error {
params := types.NewParams(
time.Time{},
sdkmath.LegacyNewDec(0),
sdkmath.LegacyNewDec(0),
)
if err := params.Validate(); err != nil {
return err
}
bz := cdc.MustMarshal(&params)
store.Set(types.ParamsKey, bz)
return nil
}