package reward

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

	"github.com/filecoin-project/go-state-types/cbor"
{{range .versions}}
    {{if (le . 7)}}
	    builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
    {{end}}
{{end}}
    builtin{{.latestVersion}} "github.com/filecoin-project/go-state-types/builtin"

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

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

func Load(store adt.Store, act *types.Actor) (State, error) {
	if name, av, ok := actors.GetActorMetaByCode(act.Code); ok {
       if name != actors.RewardKey {
          return nil, xerrors.Errorf("actor code is not reward: %s", name)
       }

       switch av {
            {{range .versions}}
                {{if (ge . 8)}}
                case actorstypes.Version{{.}}:
                     return load{{.}}(store, act.Head)
                 {{end}}
            {{end}}
       }
	}

	switch act.Code {
{{range .versions}}
    {{if (le . 7)}}
        case builtin{{.}}.RewardActorCodeID:
            return load{{.}}(store, act.Head)
    {{end}}
{{end}}
	}

	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
}

func MakeState(store adt.Store, av actorstypes.Version, currRealizedPower abi.StoragePower) (State, error) {
	switch av {
{{range .versions}}
	case actorstypes.Version{{.}}:
		return make{{.}}(store, currRealizedPower)
{{end}}
}
	return nil, xerrors.Errorf("unknown actor version %d", av)
}

type State interface {
	cbor.Marshaler

    Code() cid.Cid
    ActorKey() string
    ActorVersion() actorstypes.Version

	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)
	GetState() interface{}
}

type AwardBlockRewardParams = reward0.AwardBlockRewardParams

func AllCodes() []cid.Cid {
	return []cid.Cid{ {{range .versions}}
        (&state{{.}}{}).Code(),
    {{- end}}
    }
}