Add GetParticipantListExtended to contract/elector package

contract/elector/elector.go

@@ -0,0 +1,83 @@
+package elector
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/tonkeeper/tongo/tlb"
+	"github.com/tonkeeper/tongo/ton"
+	"github.com/tonkeeper/tongo/utils"
+)
+
+type executor interface {
+	RunSmcMethodByID(context.Context, ton.AccountID, int, tlb.VmStack) (uint32, tlb.VmStack, error)
+}
+
+type Validator struct {
+	Stake     int64
+	MaxFactor int64
+	Address   ton.AccountID
+	AdnlAddr  string
+}
+
+type ParticipantList struct {
+	ElectAt    int64
+	ElectClose int64
+	MinStake   int64
+	TotalStake int64
+	Validators []Validator
+}
+
+// participantList describes a result type of participant_list_extended method.
+// https://github.com/ton-blockchain/governance-contract/blob/master/elector-code.fc#L1461
+type participantList struct {
+	ElectAt    int64
+	ElectClose int64
+	MinStake   int64
+	TotalStake int64
+	Validators []struct {
+		ID        tlb.Bits256
+		Validator struct {
+			Stake     uint32
+			MaxFactor uint32
+			Address   tlb.Bits256
+			AdnlAddr  tlb.Bits256
+		}
+	}
+}
+
+func GetParticipantListExtended(ctx context.Context, electorAddr ton.AccountID, e executor) (*ParticipantList, error) {
+	stack := tlb.VmStack{}
+	status, result, err := e.RunSmcMethodByID(ctx, electorAddr, utils.MethodIdFromName("participant_list_extended"), stack)
+	if err != nil {
+		return nil, err
+	}
+	if status != 0 {
+		return nil, fmt.Errorf("emulator status: %d", status)
+	}
+	var list participantList
+	if err = result.Unmarshal(&list); err != nil {
+		return nil, err
+	}
+	validators := make([]Validator, 0, len(list.Validators))
+	for _, v := range list.Validators {
+		accountID := ton.AccountID{
+			Workchain: -1,
+			Address:   v.Validator.Address,
+		}
+		v.Validator.AdnlAddr.Hex()
+		validators = append(validators, Validator{
+			Stake:     int64(v.Validator.Stake),
+			MaxFactor: int64(v.Validator.MaxFactor),
+			Address:   accountID,
+			AdnlAddr:  v.Validator.AdnlAddr.Hex(),
+		})
+	}
+	return &ParticipantList{
+		ElectAt:    list.ElectAt,
+		ElectClose: list.ElectClose,
+		MinStake:   list.MinStake,
+		TotalStake: list.TotalStake,
+		Validators: validators,
+	}, nil
+}