mirror of
https://github.com/0glabs/0g-chain.git
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199 lines
8.9 KiB
Go
199 lines
8.9 KiB
Go
package keeper
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import (
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"time"
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errorsmod "cosmossdk.io/errors"
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sdk "github.com/cosmos/cosmos-sdk/types"
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authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
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vestingtypes "github.com/cosmos/cosmos-sdk/x/auth/vesting/types"
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"github.com/0glabs/0g-chain/x/incentive/types"
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// validatorvesting "github.com/0glabs/0g-chain/x/validator-vesting"
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)
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const (
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// BeginningOfMonth harvest rewards that are claimed after the 15th at 14:00UTC of the month always vest on the first of the month
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BeginningOfMonth = 1
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// MidMonth harvest rewards that are claimed before the 15th at 14:00UTC of the month always vest on the 15 of the month
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MidMonth = 15
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// PaymentHour harvest rewards always vest at 14:00UTC
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PaymentHour = 14
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)
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// SendTimeLockedCoinsToAccount sends time-locked coins from the input module account to the recipient. If the recipients account is not a vesting account and the input length is greater than zero, the recipient account is converted to a periodic vesting account and the coins are added to the vesting balance as a vesting period with the input length.
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func (k Keeper) SendTimeLockedCoinsToAccount(ctx sdk.Context, senderModule string, recipientAddr sdk.AccAddress, amt sdk.Coins, length int64) error {
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macc := k.accountKeeper.GetModuleAccount(ctx, senderModule)
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maccCoins := k.bankKeeper.GetAllBalances(ctx, macc.GetAddress())
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if !maccCoins.IsAllGTE(amt) {
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return errorsmod.Wrapf(types.ErrInsufficientModAccountBalance, "%s", senderModule)
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}
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// 0. Get the account from the account keeper and do a type switch, error if it's a validator vesting account or module account (can make this work for validator vesting later if necessary)
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acc := k.accountKeeper.GetAccount(ctx, recipientAddr)
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if acc == nil {
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return errorsmod.Wrapf(types.ErrAccountNotFound, recipientAddr.String())
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}
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if length == 0 {
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return k.bankKeeper.SendCoinsFromModuleToAccount(ctx, senderModule, recipientAddr, amt)
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}
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switch acc.(type) {
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case *vestingtypes.ContinuousVestingAccount, authtypes.ModuleAccountI:
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return errorsmod.Wrapf(types.ErrInvalidAccountType, "%T", acc)
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case *vestingtypes.PeriodicVestingAccount:
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return k.SendTimeLockedCoinsToPeriodicVestingAccount(ctx, senderModule, recipientAddr, amt, length)
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case *authtypes.BaseAccount:
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return k.SendTimeLockedCoinsToBaseAccount(ctx, senderModule, recipientAddr, amt, length)
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default:
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return errorsmod.Wrapf(types.ErrInvalidAccountType, "%T", acc)
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}
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}
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// SendTimeLockedCoinsToPeriodicVestingAccount sends time-locked coins from the input module account to the recipient
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func (k Keeper) SendTimeLockedCoinsToPeriodicVestingAccount(ctx sdk.Context, senderModule string, recipientAddr sdk.AccAddress, amt sdk.Coins, length int64) error {
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err := k.bankKeeper.SendCoinsFromModuleToAccount(ctx, senderModule, recipientAddr, amt)
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if err != nil {
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return err
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}
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k.addCoinsToVestingSchedule(ctx, recipientAddr, amt, length)
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return nil
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}
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// SendTimeLockedCoinsToBaseAccount sends time-locked coins from the input module account to the recipient, converting the recipient account to a vesting account
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func (k Keeper) SendTimeLockedCoinsToBaseAccount(ctx sdk.Context, senderModule string, recipientAddr sdk.AccAddress, amt sdk.Coins, length int64) error {
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err := k.bankKeeper.SendCoinsFromModuleToAccount(ctx, senderModule, recipientAddr, amt)
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if err != nil {
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return err
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}
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acc := k.accountKeeper.GetAccount(ctx, recipientAddr)
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// transition the account to a periodic vesting account:
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bacc := authtypes.NewBaseAccount(acc.GetAddress(), acc.GetPubKey(), acc.GetAccountNumber(), acc.GetSequence())
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newPeriods := vestingtypes.Periods{types.NewPeriod(amt, length)}
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bva := vestingtypes.NewBaseVestingAccount(bacc, amt, ctx.BlockTime().Unix()+length)
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pva := vestingtypes.NewPeriodicVestingAccountRaw(bva, ctx.BlockTime().Unix(), newPeriods)
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k.accountKeeper.SetAccount(ctx, pva)
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return nil
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}
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// GetPeriodLength returns the length of the lockup period based on the input blocktime and multiplier lockup.
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// Note that pay dates are always the 1st or 15th of the month at 14:00UTC.
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// Months lockup cannot be negative
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func (k Keeper) GetPeriodLength(blockTime time.Time, monthsLockup int64) int64 {
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if monthsLockup < 0 {
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panic("months lockup must be non negative")
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}
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if monthsLockup == 0 {
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return 0
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}
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currentDay := blockTime.Day()
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payDay := BeginningOfMonth
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monthOffset := int64(1)
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if currentDay < MidMonth || (currentDay == MidMonth && blockTime.Hour() < PaymentHour) {
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payDay = MidMonth
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monthOffset = int64(0)
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}
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periodEndDate := time.Date(blockTime.Year(), blockTime.Month(), payDay, PaymentHour, 0, 0, 0, time.UTC).AddDate(0, int(monthsLockup+monthOffset), 0)
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return periodEndDate.Unix() - blockTime.Unix()
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}
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// addCoinsToVestingSchedule adds coins to the input account's vesting schedule where length is the amount of time (from the current block time), in seconds, that the coins will be vesting for
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// the input address must be a periodic vesting account
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func (k Keeper) addCoinsToVestingSchedule(ctx sdk.Context, addr sdk.AccAddress, amt sdk.Coins, length int64) {
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acc := k.accountKeeper.GetAccount(ctx, addr)
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vacc := acc.(*vestingtypes.PeriodicVestingAccount)
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// Add the new vesting coins to OriginalVesting
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vacc.OriginalVesting = vacc.OriginalVesting.Add(amt...)
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// update vesting periods
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// EndTime = 100
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// BlockTime = 110
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// length == 6
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if vacc.EndTime < ctx.BlockTime().Unix() {
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// edge case one - the vesting account's end time is in the past (ie, all previous vesting periods have completed)
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// append a new period to the vesting account, update the end time, update the account in the store and return
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newPeriodLength := (ctx.BlockTime().Unix() - vacc.EndTime) + length // 110 - 100 + 6 = 16
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newPeriod := types.NewPeriod(amt, newPeriodLength)
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vacc.VestingPeriods = append(vacc.VestingPeriods, newPeriod)
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vacc.EndTime = ctx.BlockTime().Unix() + length
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k.accountKeeper.SetAccount(ctx, vacc)
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return
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}
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// StartTime = 110
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// BlockTime = 100
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// length = 6
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if vacc.StartTime > ctx.BlockTime().Unix() {
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// edge case two - the vesting account's start time is in the future (all periods have not started)
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// update the start time to now and adjust the period lengths in place - a new period will be inserted in the next code block
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updatedPeriods := vestingtypes.Periods{}
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for i, period := range vacc.VestingPeriods {
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updatedPeriod := period
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if i == 0 {
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updatedPeriod = types.NewPeriod(period.Amount, (vacc.StartTime-ctx.BlockTime().Unix())+period.Length) // 110 - 100 + 6 = 16
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}
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updatedPeriods = append(updatedPeriods, updatedPeriod)
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}
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vacc.VestingPeriods = updatedPeriods
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vacc.StartTime = ctx.BlockTime().Unix()
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}
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// logic for inserting a new vesting period into the existing vesting schedule
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remainingLength := vacc.EndTime - ctx.BlockTime().Unix()
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elapsedTime := ctx.BlockTime().Unix() - vacc.StartTime
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proposedEndTime := ctx.BlockTime().Unix() + length
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if remainingLength < length {
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// in the case that the proposed length is longer than the remaining length of all vesting periods, create a new period with length equal to the difference between the proposed length and the previous total length
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newPeriodLength := length - remainingLength
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newPeriod := types.NewPeriod(amt, newPeriodLength)
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vacc.VestingPeriods = append(vacc.VestingPeriods, newPeriod)
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// update the end time so that the sum of all period lengths equals endTime - startTime
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vacc.EndTime = proposedEndTime
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} else {
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// In the case that the proposed length is less than or equal to the sum of all previous period lengths, insert the period and update other periods as necessary.
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// EXAMPLE (l is length, a is amount)
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// Original Periods: {[l: 1 a: 1], [l: 2, a: 1], [l:8, a:3], [l: 5, a: 3]}
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// Period we want to insert [l: 5, a: x]
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// Expected result:
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// {[l: 1, a: 1], [l:2, a: 1], [l:2, a:x], [l:6, a:3], [l:5, a:3]}
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// StartTime = 100
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// Periods = [5,5,5,5]
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// EndTime = 120
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// BlockTime = 101
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// length = 2
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// for period in Periods:
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// iteration 1:
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// lengthCounter = 5
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// if 5 < 101 - 100 + 2 - no
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// if 5 = 3 - no
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// else
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// newperiod = 2 - 0
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newPeriods := vestingtypes.Periods{}
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lengthCounter := int64(0)
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appendRemaining := false
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for _, period := range vacc.VestingPeriods {
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if appendRemaining {
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newPeriods = append(newPeriods, period)
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continue
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}
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lengthCounter += period.Length
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if lengthCounter < elapsedTime+length { // 1
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newPeriods = append(newPeriods, period)
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} else if lengthCounter == elapsedTime+length {
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newPeriod := types.NewPeriod(period.Amount.Add(amt...), period.Length)
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newPeriods = append(newPeriods, newPeriod)
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appendRemaining = true
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} else {
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newPeriod := types.NewPeriod(amt, elapsedTime+length-types.GetTotalVestingPeriodLength(newPeriods))
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previousPeriod := types.NewPeriod(period.Amount, period.Length-newPeriod.Length)
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newPeriods = append(newPeriods, newPeriod, previousPeriod)
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appendRemaining = true
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}
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}
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vacc.VestingPeriods = newPeriods
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}
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k.accountKeeper.SetAccount(ctx, vacc)
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}
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