export.go

package app

import (
	"encoding/json"

	tmtypes "github.com/tendermint/tendermint/types"
)

// ExportAppStateAndValidators exports the state of the application for a genesis
// file.
func (app *NewApp) ExportAppStateAndValidators(
	forZeroHeight bool, jailWhiteList []string,
) (appState json.RawMessage, validators []tmtypes.GenesisValidator, err error) {
	return []byte{}, []tmtypes.GenesisValidator{}, nil
	// // as if they could withdraw from the start of the next block
	// ctx := app.NewContext(true, abci.Header{Height: app.LastBlockHeight()})

	// if forZeroHeight {
	// 	app.prepForZeroHeightGenesis(ctx, jailWhiteList)
	// }

	// genState := app.mm.ExportGenesis(ctx)
	// appState, err = codec.MarshalJSONIndent(app.cdc, genState)
	// if err != nil {
	// 	return nil, nil, err
	// }

	// validators = staking.WriteValidators(ctx, app.stakingKeeper)
	// return appState, validators, nil
}

// // prepare for fresh start at zero height
// // NOTE zero height genesis is a temporary feature which will be deprecated
// //      in favour of export at a block height
// func (app *NewApp) prepForZeroHeightGenesis(ctx sdk.Context, jailWhiteList []string) {
// 	applyWhiteList := false

// 	//Check if there is a whitelist
// 	if len(jailWhiteList) > 0 {
// 		applyWhiteList = true
// 	}

// 	whiteListMap := make(map[string]bool)

// 	for _, addr := range jailWhiteList {
// 		_, err := sdk.ValAddressFromBech32(addr)
// 		if err != nil {
// 			log.Fatal(err)
// 		}
// 		whiteListMap[addr] = true
// 	}

// 	/* Handle fee distribution state. */

// 	// withdraw all validator commission
// 	app.stakingKeeper.IterateValidators(ctx, func(_ int64, val staking.ValidatorI) (stop bool) {
// 		_, err := app.distrKeeper.WithdrawValidatorCommission(ctx, val.GetOperator())
// 		if err != nil {
// 			log.Fatal(err)
// 		}
// 		return false
// 	})

// 	// withdraw all delegator rewards
// 	dels := app.stakingKeeper.GetAllDelegations(ctx)
// 	for _, delegation := range dels {
// 		_, err := app.distrKeeper.WithdrawDelegationRewards(ctx, delegation.DelegatorAddress, delegation.ValidatorAddress)
// 		if err != nil {
// 			log.Fatal(err)
// 		}
// 	}

// 	// clear validator slash events
// 	app.distrKeeper.DeleteAllValidatorSlashEvents(ctx)

// 	// clear validator historical rewards
// 	app.distrKeeper.DeleteAllValidatorHistoricalRewards(ctx)

// 	// set context height to zero
// 	height := ctx.BlockHeight()
// 	ctx = ctx.WithBlockHeight(0)

// 	// reinitialize all validators
// 	app.stakingKeeper.IterateValidators(ctx, func(_ int64, val staking.ValidatorI) (stop bool) {

// 		// donate any unwithdrawn outstanding reward fraction tokens to the community pool
// 		scraps := app.distrKeeper.GetValidatorOutstandingRewards(ctx, val.GetOperator())
// 		feePool := app.distrKeeper.GetFeePool(ctx)
// 		feePool.CommunityPool = feePool.CommunityPool.Add(scraps...)
// 		app.distrKeeper.SetFeePool(ctx, feePool)

// 		app.distrKeeper.Hooks().AfterValidatorCreated(ctx, val.GetOperator())
// 		return false
// 	})

// 	// reinitialize all delegations
// 	for _, del := range dels {
// 		app.distrKeeper.Hooks().BeforeDelegationCreated(ctx, del.DelegatorAddress, del.ValidatorAddress)
// 		app.distrKeeper.Hooks().AfterDelegationModified(ctx, del.DelegatorAddress, del.ValidatorAddress)
// 	}

// 	// reset context height
// 	ctx = ctx.WithBlockHeight(height)

// 	/* Handle staking state. */

// 	// iterate through redelegations, reset creation height
// 	app.stakingKeeper.IterateRedelegations(ctx, func(_ int64, red staking.Redelegation) (stop bool) {
// 		for i := range red.Entries {
// 			red.Entries[i].CreationHeight = 0
// 		}
// 		app.stakingKeeper.SetRedelegation(ctx, red)
// 		return false
// 	})

// 	// iterate through unbonding delegations, reset creation height
// 	app.stakingKeeper.IterateUnbondingDelegations(ctx, func(_ int64, ubd staking.UnbondingDelegation) (stop bool) {
// 		for i := range ubd.Entries {
// 			ubd.Entries[i].CreationHeight = 0
// 		}
// 		app.stakingKeeper.SetUnbondingDelegation(ctx, ubd)
// 		return false
// 	})

// 	// Iterate through validators by power descending, reset bond heights, and
// 	// update bond intra-tx counters.
// 	store := ctx.KVStore(app.keys[staking.StoreKey])
// 	iter := sdk.KVStoreReversePrefixIterator(store, staking.ValidatorsKey)
// 	counter := int16(0)

// 	for ; iter.Valid(); iter.Next() {
// 		addr := sdk.ValAddress(iter.Key()[1:])
// 		validator, found := app.stakingKeeper.GetValidator(ctx, addr)
// 		if !found {
// 			panic("expected validator, not found")
// 		}

// 		validator.UnbondingHeight = 0
// 		if applyWhiteList && !whiteListMap[addr.String()] {
// 			validator.Jailed = true
// 		}

// 		app.stakingKeeper.SetValidator(ctx, validator)
// 		counter++
// 	}

// 	iter.Close()

// 	_ = app.stakingKeeper.ApplyAndReturnValidatorSetUpdates(ctx)

// 	/* Handle slashing state. */

// 	// reset start height on signing infos
// 	app.slashingKeeper.IterateValidatorSigningInfos(
// 		ctx,
// 		func(addr sdk.ConsAddress, info slashing.ValidatorSigningInfo) (stop bool) {
// 			info.StartHeight = 0
// 			app.slashingKeeper.SetValidatorSigningInfo(ctx, addr, info)
// 			return false
// 		},
// 	)
// }