85 lines
2.9 KiB
Go
85 lines
2.9 KiB
Go
package polycat
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import (
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"context"
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"math/big"
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"git.lehouerou.net/laurent/evm"
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"git.lehouerou.net/laurent/evm/polycat/contracts"
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"github.com/ethereum/go-ethereum/accounts/abi/bind"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/pkg/errors"
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"github.com/shopspring/decimal"
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)
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const (
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Masterchefv2Address = "0x4ce9Ae2f5983e19AebF5b8Bae4460f2B9EcE811a"
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)
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type Masterchefv2Service struct {
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client evm.Client
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contract *contracts.MasterChefv2
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}
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func NewMasterchefv2Service(c evm.Client) (*Masterchefv2Service, error) {
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contract, err := contracts.NewMasterChefv2(common.HexToAddress(Masterchefv2Address), c)
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if err != nil {
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return nil, errors.Wrap(err, "init contract")
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}
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return &Masterchefv2Service{
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contract: contract,
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client: c,
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}, nil
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}
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func (s *Masterchefv2Service) PoolInfo(pid int) (*PoolInfo, error) {
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pi, err := s.contract.PoolInfo(&bind.CallOpts{}, big.NewInt(int64(pid)))
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if err != nil {
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return nil, errors.Wrap(err, "gettting pool info")
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}
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ui, err := s.contract.UserInfo(&bind.CallOpts{}, big.NewInt(int64(pid)), s.client.PublicAddress())
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if err != nil {
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return nil, errors.Wrap(err, "getting user info")
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}
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pair, err := NewCatPair(s.client, pi.LpToken)
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if err != nil {
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return nil, errors.Wrap(err, "getting pair contract")
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}
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return &PoolInfo{
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LpToken: pair,
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Balance: pair.ValueFromBigInt(ui.Amount),
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TotalDeposited: pair.ValueFromBigInt(pi.TotalDeposited),
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}, nil
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}
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func (s *Masterchefv2Service) HarvestAll(ctx context.Context, opts ...evm.ExecutionOption) (evm.Transaction, error) {
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return s.client.Execute(ctx, func(ctx context.Context, options *evm.TransactOpts) (*types.Transaction, error) {
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return s.contract.HarvestAll(options.TransactOpts)
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}, opts...)
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}
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func (s *Masterchefv2Service) PendingRewards(pids []int) (decimal.Decimal, error) {
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var tot decimal.Decimal
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for _, pid := range pids {
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pr, err := s.contract.PendingPaw(&bind.CallOpts{}, big.NewInt(int64(pid)), s.client.PublicAddress())
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if err != nil {
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return decimal.Zero, errors.Wrapf(err, "getting pending reward for pid %d", pid)
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}
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tot = tot.Add(decimal.NewFromBigInt(pr, -18))
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}
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return tot, nil
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}
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func (s *Masterchefv2Service) Deposit(ctx context.Context, pid int, amount decimal.Decimal, opts ...evm.ExecutionOption) (evm.Transaction, error) {
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return s.client.Execute(ctx, func(ctx context.Context, options *evm.TransactOpts) (*types.Transaction, error) {
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return s.contract.Deposit(options.TransactOpts, big.NewInt(int64(pid)), amount.Shift(18).BigInt(), false)
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}, opts...)
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}
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func (s *Masterchefv2Service) Withdraw(ctx context.Context, pid int, amount decimal.Decimal, opts ...evm.ExecutionOption) (evm.Transaction, error) {
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return s.client.Execute(ctx, func(ctx context.Context, options *evm.TransactOpts) (*types.Transaction, error) {
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return s.contract.Withdraw(options.TransactOpts, big.NewInt(int64(pid)), amount.Shift(18).BigInt(), false)
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}, opts...)
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}
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