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config.go
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config.go
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// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package genesis
import (
"encoding/hex"
"encoding/json"
"fmt"
"io/ioutil"
"path/filepath"
"github.com/ava-labs/avalanchego/ids"
"github.com/ava-labs/avalanchego/utils/constants"
"github.com/ava-labs/avalanchego/utils/formatting"
"github.com/ava-labs/avalanchego/utils/wrappers"
safemath "github.com/ava-labs/avalanchego/utils/math"
)
type LockedAmount struct {
Amount uint64 `json:"amount"`
Locktime uint64 `json:"locktime"`
}
type Allocation struct {
ETHAddr ids.ShortID `json:"ethAddr"`
AVAXAddr ids.ShortID `json:"avaxAddr"`
InitialAmount uint64 `json:"initialAmount"`
UnlockSchedule []LockedAmount `json:"unlockSchedule"`
}
func (a Allocation) Unparse(networkID uint32) (UnparsedAllocation, error) {
ua := UnparsedAllocation{
InitialAmount: a.InitialAmount,
UnlockSchedule: a.UnlockSchedule,
ETHAddr: "0x" + hex.EncodeToString(a.ETHAddr.Bytes()),
}
avaxAddr, err := formatting.FormatAddress(
"X",
constants.GetHRP(networkID),
a.AVAXAddr.Bytes(),
)
ua.AVAXAddr = avaxAddr
return ua, err
}
type Staker struct {
NodeID ids.ShortID `json:"nodeID"`
RewardAddress ids.ShortID `json:"rewardAddress"`
DelegationFee uint32 `json:"delegationFee"`
}
func (s Staker) Unparse(networkID uint32) (UnparsedStaker, error) {
avaxAddr, err := formatting.FormatAddress(
"X",
constants.GetHRP(networkID),
s.RewardAddress.Bytes(),
)
return UnparsedStaker{
NodeID: s.NodeID.PrefixedString(constants.NodeIDPrefix),
RewardAddress: avaxAddr,
DelegationFee: s.DelegationFee,
}, err
}
// Config contains the genesis addresses used to construct a genesis
type Config struct {
NetworkID uint32 `json:"networkID"`
Allocations []Allocation `json:"allocations"`
StartTime uint64 `json:"startTime"`
InitialStakeDuration uint64 `json:"initialStakeDuration"`
InitialStakeDurationOffset uint64 `json:"initialStakeDurationOffset"`
InitialStakedFunds []ids.ShortID `json:"initialStakedFunds"`
InitialStakers []Staker `json:"initialStakers"`
CChainGenesis string `json:"cChainGenesis"`
Message string `json:"message"`
}
func (c Config) Unparse() (UnparsedConfig, error) {
uc := UnparsedConfig{
NetworkID: c.NetworkID,
Allocations: make([]UnparsedAllocation, len(c.Allocations)),
StartTime: c.StartTime,
InitialStakeDuration: c.InitialStakeDuration,
InitialStakeDurationOffset: c.InitialStakeDurationOffset,
InitialStakedFunds: make([]string, len(c.InitialStakedFunds)),
InitialStakers: make([]UnparsedStaker, len(c.InitialStakers)),
CChainGenesis: c.CChainGenesis,
Message: c.Message,
}
for i, a := range c.Allocations {
ua, err := a.Unparse(uc.NetworkID)
if err != nil {
return uc, err
}
uc.Allocations[i] = ua
}
for i, isa := range c.InitialStakedFunds {
avaxAddr, err := formatting.FormatAddress(
"X",
constants.GetHRP(uc.NetworkID),
isa.Bytes(),
)
if err != nil {
return uc, err
}
uc.InitialStakedFunds[i] = avaxAddr
}
for i, is := range c.InitialStakers {
uis, err := is.Unparse(c.NetworkID)
if err != nil {
return uc, err
}
uc.InitialStakers[i] = uis
}
return uc, nil
}
func (c *Config) InitialSupply() (uint64, error) {
initialSupply := uint64(0)
for _, allocation := range c.Allocations {
newInitialSupply, err := safemath.Add64(initialSupply, allocation.InitialAmount)
if err != nil {
return 0, err
}
for _, unlock := range allocation.UnlockSchedule {
newInitialSupply, err = safemath.Add64(newInitialSupply, unlock.Amount)
if err != nil {
return 0, err
}
}
initialSupply = newInitialSupply
}
return initialSupply, nil
}
var (
// MainnetConfig is the config that should be used to generate the mainnet
// genesis.
MainnetConfig Config
// FujiConfig is the config that should be used to generate the fuji
// genesis.
FujiConfig Config
// LocalConfig is the config that should be used to generate a local
// genesis.
LocalConfig Config
)
func init() {
unparsedMainnetConfig := UnparsedConfig{}
unparsedFujiConfig := UnparsedConfig{}
unparsedLocalConfig := UnparsedConfig{}
errs := wrappers.Errs{}
errs.Add(
json.Unmarshal([]byte(mainnetGenesisConfigJSON), &unparsedMainnetConfig),
json.Unmarshal([]byte(fujiGenesisConfigJSON), &unparsedFujiConfig),
json.Unmarshal([]byte(localGenesisConfigJSON), &unparsedLocalConfig),
)
if errs.Errored() {
panic(errs.Err)
}
mainnetConfig, err := unparsedMainnetConfig.Parse()
errs.Add(err)
MainnetConfig = mainnetConfig
fujiConfig, err := unparsedFujiConfig.Parse()
errs.Add(err)
FujiConfig = fujiConfig
localConfig, err := unparsedLocalConfig.Parse()
errs.Add(err)
LocalConfig = localConfig
if errs.Errored() {
panic(errs.Err)
}
}
func GetConfig(networkID uint32) *Config {
switch networkID {
case constants.MainnetID:
return &MainnetConfig
case constants.FujiID:
return &FujiConfig
case constants.LocalID:
return &LocalConfig
default:
tempConfig := LocalConfig
tempConfig.NetworkID = networkID
return &tempConfig
}
}
// GetConfigFile loads a *Config from a provided
// filepath.
func GetConfigFile(fp string) (*Config, error) {
b, err := ioutil.ReadFile(filepath.Clean(fp))
if err != nil {
return nil, fmt.Errorf("unable to load file %s: %w", fp, err)
}
var unparsedConfig UnparsedConfig
if err := json.Unmarshal(b, &unparsedConfig); err != nil {
return nil, fmt.Errorf("could not unmarshal JSON: %w", err)
}
config, err := unparsedConfig.Parse()
if err != nil {
return nil, fmt.Errorf("unable to parse config: %w", err)
}
return &config, nil
}