Fantom-foundation/go-lachesis

package app

import (
    "math/big"

    "github.com/Fantom-foundation/go-lachesis/evmcore"
    "github.com/Fantom-foundation/go-lachesis/inter/sfctype"
    "github.com/Fantom-foundation/go-lachesis/lachesis"
)

// ApplyGenesis writes initial state.
func (s *Store) ApplyGenesis(net *lachesis.Config) (evmBlock *evmcore.EvmBlock, err error) {
    evmBlock, err = evmcore.ApplyGenesis(s.table.Evm, net)
    if err != nil {
        return
    }

    // calc total pre-minted supply
    totalSupply := big.NewInt(0)
    for _, account := range net.Genesis.Alloc.Accounts {
        totalSupply.Add(totalSupply, account.Balance)
    }
    s.SetTotalSupply(totalSupply)

    validatorsArr := []sfctype.SfcStakerAndID{}
    for _, validator := range net.Genesis.Alloc.Validators {
        staker := &sfctype.SfcStaker{
            Address:      validator.Address,
            CreatedEpoch: 0,
            CreatedTime:  net.Genesis.Time,
            StakeAmount:  validator.Stake,
            DelegatedMe:  big.NewInt(0),
        }
        s.SetSfcStaker(validator.ID, staker)
        validatorsArr = append(validatorsArr, sfctype.SfcStakerAndID{
            StakerID: validator.ID,
            Staker:   staker,
        })
    }
    s.SetEpochValidators(1, validatorsArr)

    return
}