package reward

import (
	"github.com/filecoin-project/go-state-types/abi"
	reward0 "github.com/filecoin-project/specs-actors/actors/builtin/reward"
	"github.com/ipfs/go-cid"
	"golang.org/x/xerrors"

	"github.com/filecoin-project/go-state-types/cbor"
{{range .versions}}
	builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
{{end}}

	"github.com/filecoin-project/lotus/chain/actors/adt"
	"github.com/filecoin-project/lotus/chain/actors/builtin"
	"github.com/filecoin-project/lotus/chain/types"
)

func init() {
{{range .versions}}
	builtin.RegisterActorState(builtin{{.}}.RewardActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
		return load{{.}}(store, root)
	})
{{end}}}

var (
	Address = builtin{{.latestVersion}}.RewardActorAddr
	Methods = builtin{{.latestVersion}}.MethodsReward
)

func Load(store adt.Store, act *types.Actor) (State, error) {
	switch act.Code {
{{range .versions}}
	case builtin{{.}}.RewardActorCodeID:
		return load{{.}}(store, act.Head)
{{end}}
	}
	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
}

type State interface {
	cbor.Marshaler

	ThisEpochBaselinePower() (abi.StoragePower, error)
	ThisEpochReward() (abi.StoragePower, error)
	ThisEpochRewardSmoothed() (builtin.FilterEstimate, error)

	EffectiveBaselinePower() (abi.StoragePower, error)
	EffectiveNetworkTime() (abi.ChainEpoch, error)

	TotalStoragePowerReward() (abi.TokenAmount, error)

	CumsumBaseline() (abi.StoragePower, error)
	CumsumRealized() (abi.StoragePower, error)

	InitialPledgeForPower(abi.StoragePower, abi.TokenAmount, *builtin.FilterEstimate, abi.TokenAmount) (abi.TokenAmount, error)
	PreCommitDepositForPower(builtin.FilterEstimate, abi.StoragePower) (abi.TokenAmount, error)
}

type AwardBlockRewardParams = reward0.AwardBlockRewardParams