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airdrop.go
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airdrop.go
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package cmd
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"github.com/cosmos-gaminghub/nibiru/app"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/client/flags"
"github.com/cosmos/cosmos-sdk/codec"
"github.com/cosmos/cosmos-sdk/server"
sdk "github.com/cosmos/cosmos-sdk/types"
authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
"github.com/cosmos/cosmos-sdk/x/genutil"
genutiltypes "github.com/cosmos/cosmos-sdk/x/genutil/types"
stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
ibctransfertypes "github.com/cosmos/ibc-go/v2/modules/apps/transfer/types"
"github.com/spf13/cobra"
)
const (
MaxCap = 50000000000
TotalGameAirdropAmount = 1000000000000 // 0.5% * 200000000
DefaultDenom = "ugame"
)
type Snapshot struct {
TotalAtomAmount sdk.Int `json:"total_atom_amount"`
TotalGameAirdropAmount sdk.Int `json:"total_game_amount"`
NumberAccounts uint64 `json:"num_accounts"`
Accounts map[string]SnapshotAccount `json:"accounts"`
}
// SnapshotAccount provide fields of snapshot per account
type SnapshotAccount struct {
AtomAddress string `json:"atom_address"` // Atom Balance = AtomStakedBalance + AtomUnstakedBalance
AtomBalance sdk.Int `json:"atom_balance"`
AtomOwnershipPercent sdk.Dec `json:"atom_ownership_percent"`
AtomStakedBalance sdk.Int `json:"atom_staked_balance"`
AtomUnstakedBalance sdk.Int `json:"atom_unstaked_balance"` // AtomStakedPercent = AtomStakedBalance / AtomBalance
AtomStakedPercent sdk.Dec `json:"atom_staked_percent"`
GameBalance sdk.Int `json:"game_balance"`
Denominator sdk.Int `json:"denominator"`
}
type Account struct {
Address string `json:"address,omitempty"`
AccountNumber uint64 `json:"account_number,omitempty"`
Sequence uint64 `json:"sequence,omitempty"`
}
// ExportAirdropSnapshotCmd generates a snapshot.json from a provided cosmos-sdk v0.36 genesis export.
func ExportAirdropSnapshotCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "export-airdrop-snapshot [airdrop-to-denom] [first-input-snapshot-file] [second-input-snapshot-file] [output-snapshot-json]",
Short: "Export an airdrop snapshot from a provided cosmos-sdk v0.42 genesis export",
Long: `Export an airdrop snapshot from a provided cosmos-sdk v0.42 genesis export
Example:
nibirud export-airdrop-snapshot uatom cosmoshub4-2021-02-18.json cosmoshub4-2021-11-01.json snapshot.json
- Snapshot
file is at "./snapshot.json"
`,
Args: cobra.ExactArgs(4),
RunE: func(cmd *cobra.Command, args []string) error {
clientCtx := client.GetClientContextFromCmd(cmd)
serverCtx := server.GetServerContextFromCmd(cmd)
config := serverCtx.Config
config.SetRoot(clientCtx.HomeDir)
denom := args[0]
firstGenesisFile := args[1]
secondGenesisFile := args[2]
snapshotOutput := args[3]
var snapshot Snapshot
snapshot.Accounts = make(map[string]SnapshotAccount)
snapshot.TotalGameAirdropAmount = sdk.ZeroInt()
snapshot = exportSnapShotFromGenesisFile(clientCtx, firstGenesisFile, denom, snapshotOutput, snapshot)
snapshot = exportSnapShotFromGenesisFile(clientCtx, secondGenesisFile, denom, snapshotOutput, snapshot)
// export snapshot json
snapshotJSON, err := json.MarshalIndent(snapshot, "", " ")
if err != nil {
return fmt.Errorf("failed to marshal snapshot: %w", err)
}
err = ioutil.WriteFile(snapshotOutput, snapshotJSON, 0644)
return err
},
}
flags.AddQueryFlagsToCmd(cmd)
return cmd
}
// compare balance with max cap
func getMin(balance sdk.Dec) sdk.Dec {
if balance.GTE(sdk.NewDec(MaxCap)) {
atomSqrt, err := sdk.NewInt(MaxCap).ToDec().ApproxSqrt()
if err != nil {
panic(fmt.Sprintf("failed to root atom balance: %s", err))
}
return atomSqrt
} else {
atomSqrt, err := balance.ApproxSqrt()
if err != nil {
panic(fmt.Sprintf("failed to root atom balance: %s", err))
}
return atomSqrt
}
}
func getDenominator(snapshotAccs map[string]SnapshotAccount) sdk.Int {
denominator := sdk.ZeroInt()
for _, acc := range snapshotAccs {
allAtoms := acc.AtomBalance.ToDec()
denominator = denominator.Add(getMin(allAtoms).RoundInt())
}
return denominator
}
func exportSnapShotFromGenesisFile(clientCtx client.Context, genesisFile string, denom string, snapshotOutput string, snapshot Snapshot) Snapshot {
appState, _, _ := genutiltypes.GenesisStateFromGenFile(genesisFile)
bankGenState := banktypes.GetGenesisStateFromAppState(clientCtx.Codec, appState)
stakingGenState := stakingtypes.GetGenesisStateFromAppState(clientCtx.Codec, appState)
authGenState := authtypes.GetGenesisStateFromAppState(clientCtx.Codec, appState)
snapshotAccs := make(map[string]SnapshotAccount)
for _, account := range authGenState.GetAccounts() {
if account.TypeUrl == "/cosmos.auth.v1beta1.BaseAccount" {
_, ok := account.GetCachedValue().(authtypes.GenesisAccount)
if ok {
var byteAccounts []byte
// Reason is prefix is nibiru --> getAddress will be empty
// Marshal construct and convert to new struct to get address
byteAccounts, err := codec.NewLegacyAmino().MarshalJSON(account.GetCachedValue())
if err != nil {
fmt.Printf("No account found for bank balance %s \n", string(byteAccounts))
fmt.Println(err.Error())
continue
}
var accountAfter Account
if err := codec.NewLegacyAmino().UnmarshalJSON(byteAccounts, &accountAfter); err != nil {
continue
}
snapshotAccs[accountAfter.Address] = SnapshotAccount{
AtomAddress: accountAfter.Address,
AtomBalance: sdk.ZeroInt(),
AtomUnstakedBalance: sdk.ZeroInt(),
AtomStakedBalance: sdk.ZeroInt(),
}
}
}
}
// Produce the map of address to total atom balance, both staked and unstaked
for _, account := range bankGenState.Balances {
acc, ok := snapshotAccs[account.Address]
if !ok {
fmt.Printf("No account found for bank balance %s \n", account.Address)
continue
}
balance := account.Coins.AmountOf(denom)
acc.AtomBalance = acc.AtomBalance.Add(balance)
acc.AtomUnstakedBalance = acc.AtomUnstakedBalance.Add(balance)
snapshotAccs[account.Address] = acc
}
for _, unbonding := range stakingGenState.UnbondingDelegations {
address := unbonding.DelegatorAddress
acc, ok := snapshotAccs[address]
if !ok {
fmt.Printf("No account found for unbonding %s \n", address)
continue
}
unbondingAtoms := sdk.NewInt(0)
for _, entry := range unbonding.Entries {
unbondingAtoms = unbondingAtoms.Add(entry.Balance)
}
acc.AtomBalance = acc.AtomBalance.Add(unbondingAtoms)
acc.AtomUnstakedBalance = acc.AtomUnstakedBalance.Add(unbondingAtoms)
snapshotAccs[address] = acc
}
// Make a map from validator operator address to the v42 validator type
validators := make(map[string]stakingtypes.Validator)
for _, validator := range stakingGenState.Validators {
validators[validator.OperatorAddress] = validator
}
for _, delegation := range stakingGenState.Delegations {
address := delegation.DelegatorAddress
acc, ok := snapshotAccs[address]
if !ok {
fmt.Printf("No account found for delegation address %s \n", address)
continue
}
val := validators[delegation.ValidatorAddress]
stakedAtoms := delegation.Shares.MulInt(val.Tokens).Quo(val.DelegatorShares).RoundInt()
acc.AtomBalance = acc.AtomBalance.Add(stakedAtoms)
acc.AtomStakedBalance = acc.AtomStakedBalance.Add(stakedAtoms)
snapshotAccs[address] = acc
}
denominator := getDenominator(snapshotAccs)
totalBalance := sdk.ZeroInt()
totalAtomBalance := sdk.NewInt(0)
for address, acc := range snapshotAccs {
allAtoms := acc.AtomBalance.ToDec()
allAtomSqrt := getMin(allAtoms).RoundInt()
if denominator.IsZero() {
acc.AtomOwnershipPercent = sdk.NewInt(0).ToDec()
} else {
acc.AtomOwnershipPercent = allAtomSqrt.ToDec().QuoInt(denominator)
}
if allAtoms.IsZero() {
acc.AtomStakedPercent = sdk.ZeroDec()
acc.GameBalance = sdk.ZeroInt()
snapshotAccs[address] = acc
continue
}
stakedAtoms := acc.AtomStakedBalance.ToDec()
stakedPercent := stakedAtoms.Quo(allAtoms)
acc.AtomStakedPercent = stakedPercent
acc.GameBalance = acc.AtomOwnershipPercent.MulInt(sdk.NewInt(TotalGameAirdropAmount)).RoundInt()
totalBalance = totalBalance.Add(acc.GameBalance)
snapshotAccount, ok := snapshot.Accounts[address]
if !ok {
snapshot.Accounts[address] = acc
totalAtomBalance = totalAtomBalance.Add(acc.AtomBalance)
} else {
if snapshotAccount.GameBalance.IsNil() {
snapshotAccount.GameBalance = sdk.ZeroInt()
}
snapshotAccount.GameBalance = snapshotAccount.GameBalance.Add(acc.GameBalance)
snapshotAccount.AtomBalance = snapshotAccount.AtomBalance.Add(acc.AtomBalance)
snapshotAccount.AtomUnstakedBalance = snapshotAccount.AtomUnstakedBalance.Add(acc.AtomUnstakedBalance)
snapshot.Accounts[address] = snapshotAccount
totalAtomBalance = totalAtomBalance.Add(acc.AtomBalance)
}
}
snapshot.TotalAtomAmount = totalAtomBalance
snapshot.TotalGameAirdropAmount = snapshot.TotalGameAirdropAmount.Add(totalBalance)
snapshot.NumberAccounts = snapshot.NumberAccounts + uint64(len(snapshot.Accounts))
fmt.Printf("Complete read genesis file %s \n", genesisFile)
fmt.Printf("# accounts: %d\n", len(snapshotAccs))
fmt.Printf("atomTotalSupply: %s\n", totalAtomBalance.String())
fmt.Printf("gameTotalSupply: %s\n", totalBalance.String())
return snapshot
}
func ImportGenesisAccountsFromSnapshotCmd(defaultNodeHome string) *cobra.Command {
cmd := &cobra.Command{
Use: "import-genesis-accounts-from-snapshot [input-snapshot-file] [input-games-file] --name=<denom-name>",
Short: "Import genesis accounts from snapshot.json and games.json",
Long: `Import genesis accounts from snapshot.json and games.json
Example:
nibirud import-genesis-accounts-from-snapshot snapshot.json games.json
- Check input genesis:
file is at ~/.nibirud/config/genesis.json
`,
Args: cobra.ExactArgs(2),
RunE: func(cmd *cobra.Command, args []string) error {
clientCtx := client.GetClientContextFromCmd(cmd)
serverCtx := server.GetServerContextFromCmd(cmd)
config := serverCtx.Config
config.SetRoot(clientCtx.HomeDir)
genFile := config.GenesisFile()
appState, genDoc, err := genutiltypes.GenesisStateFromGenFile(genFile)
if err != nil {
return fmt.Errorf("failed to unmarshal genesis state: %w", err)
}
authGenState := authtypes.GetGenesisStateFromAppState(clientCtx.Codec, appState)
accs, err := authtypes.UnpackAccounts(authGenState.Accounts)
if err != nil {
return fmt.Errorf("failed to get accounts from any: %w", err)
}
// Read snapshot file
snapshotInput := args[0]
snapshotJSON, err := os.Open(snapshotInput)
if err != nil {
return err
}
defer snapshotJSON.Close()
byteValue, _ := ioutil.ReadAll(snapshotJSON)
snapshot := Snapshot{}
err = json.Unmarshal(byteValue, &snapshot)
if err != nil {
return err
}
// Read ions file
gameInput := args[1]
gameJSON, err := os.Open(gameInput)
if err != nil {
return err
}
defer gameJSON.Close()
byteValue2, _ := ioutil.ReadAll(gameJSON)
var gameAmts map[string]int64
err = json.Unmarshal(byteValue2, &gameAmts)
if err != nil {
return err
}
nonAirdropAccs := make(map[string]sdk.Coins)
for addr, amt := range gameAmts {
// set atom bech32 prefixes
bech32Addr, err := app.ConvertBech32(addr)
if err != nil {
return err
}
address, err := sdk.AccAddressFromBech32(bech32Addr)
if err != nil {
return err
}
if val, ok := nonAirdropAccs[address.String()]; ok {
nonAirdropAccs[address.String()] = val.Add(sdk.NewCoin(DefaultDenom, sdk.NewInt(amt)))
} else {
nonAirdropAccs[address.String()] = sdk.NewCoins(sdk.NewCoin(DefaultDenom, sdk.NewInt(amt)))
}
}
// for each account in the snapshot
bankGenState := banktypes.GetGenesisStateFromAppState(clientCtx.Codec, appState)
liquidBalances := bankGenState.Balances
supply := bankGenState.Supply
for _, acc := range snapshot.Accounts {
// read address from snapshot
bech32Addr, err := app.ConvertBech32(acc.AtomAddress)
if err != nil {
return err
}
address, err := sdk.AccAddressFromBech32(bech32Addr)
if err != nil {
return err
}
// initial liquid amounts
// We consistently round down to the nearest ugame
liquidCoins := sdk.NewCoins(sdk.NewCoin(DefaultDenom, acc.GameBalance))
if coins, ok := nonAirdropAccs[address.String()]; ok {
liquidCoins = liquidCoins.Add(coins...)
delete(nonAirdropAccs, address.String())
}
liquidBalances = append(liquidBalances, banktypes.Balance{
Address: address.String(),
Coins: liquidCoins,
})
supply = supply.Add(liquidCoins...)
// Add the new account to the set of genesis accounts
baseAccount := authtypes.NewBaseAccount(address, nil, 0, 0)
if err := baseAccount.Validate(); err != nil {
return fmt.Errorf("failed to validate new genesis account: %w", err)
}
accs = append(accs, baseAccount)
}
// distribute remaining game to accounts not in fairdrop
for addr, coin := range nonAirdropAccs {
// read address from snapshot
address, err := sdk.AccAddressFromBech32(addr)
if err != nil {
return err
}
liquidBalances = append(liquidBalances, banktypes.Balance{
Address: address.String(),
Coins: coin,
})
supply = supply.Add(coin...)
// Add the new account to the set of genesis accounts
baseAccount := authtypes.NewBaseAccount(address, nil, 0, 0)
if err := baseAccount.Validate(); err != nil {
return fmt.Errorf("failed to validate new genesis account: %w", err)
}
accs = append(accs, baseAccount)
}
// auth module genesis
accs = authtypes.SanitizeGenesisAccounts(accs)
genAccs, err := authtypes.PackAccounts(accs)
if err != nil {
return fmt.Errorf("failed to convert accounts into any's: %w", err)
}
authGenState.Accounts = genAccs
authGenStateBz, err := clientCtx.Codec.MarshalJSON(&authGenState)
if err != nil {
return fmt.Errorf("failed to marshal auth genesis state: %w", err)
}
appState[authtypes.ModuleName] = authGenStateBz
// bank module genesis
bankGenState.Balances = banktypes.SanitizeGenesisBalances(liquidBalances)
bankGenState.Supply = supply
bankGenStateBz, err := clientCtx.Codec.MarshalJSON(bankGenState)
if err != nil {
return fmt.Errorf("failed to marshal bank genesis state: %w", err)
}
appState[banktypes.ModuleName] = bankGenStateBz
byteIBCTransfer, err := appState[ibctransfertypes.ModuleName].MarshalJSON()
if err != nil {
return fmt.Errorf("Error marshal ibc transfer: %w", err)
}
var ibcGenState ibctransfertypes.GenesisState
err = ibctransfertypes.ModuleCdc.UnmarshalJSON(byteIBCTransfer, &ibcGenState)
if err != nil {
return fmt.Errorf("Error unmarshal ibc transfer: %w", err)
}
ibcGenStateBz, err := clientCtx.Codec.MarshalJSON(&ibcGenState)
if err != nil {
return fmt.Errorf("failed to marshal ibc genesis state: %w", err)
}
appState[ibctransfertypes.ModuleName] = ibcGenStateBz
appStateJSON, err := json.Marshal(appState)
if err != nil {
return fmt.Errorf("failed to marshal application genesis state: %w", err)
}
genDoc.AppState = appStateJSON
err = genutil.ExportGenesisFile(genDoc, genFile)
return err
},
}
cmd.Flags().String(flags.FlagHome, defaultNodeHome, "The application home directory")
flags.AddQueryFlagsToCmd(cmd)
return cmd
}