653 lines
19 KiB
Rust
653 lines
19 KiB
Rust
use crate::error::*;
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use anchor_lang::prelude::*;
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use anchor_spl::vote_weight_record;
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use std::convert::TryFrom;
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// Generate a VoteWeightRecord Anchor wrapper, owned by the current program.
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// VoteWeightRecords are unique in that they are defined by the SPL governance
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// program, but they are actually owned by this program.
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vote_weight_record!(crate::ID);
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/// Seconds in one day.
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#[cfg(feature = "localnet")]
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pub const SECS_PER_DAY: i64 = 10;
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#[cfg(not(feature = "localnet"))]
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pub const SECS_PER_DAY: i64 = 86_400;
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/// Seconds in one month.
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#[cfg(feature = "localnet")]
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pub const SECS_PER_MONTH: i64 = 10;
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#[cfg(not(feature = "localnet"))]
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pub const SECS_PER_MONTH: i64 = 365 * SECS_PER_DAY / 12;
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/// Maximum number of days one can lock for.
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pub const MAX_DAYS_LOCKED: u64 = 7 * 365;
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/// Maximum number of months one can lock for.
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pub const MAX_MONTHS_LOCKED: u64 = 7 * 12;
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#[zero_copy]
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#[derive(AnchorSerialize, AnchorDeserialize)]
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pub struct Lockup {
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pub kind: LockupKind,
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// Start of the lockup.
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pub start_ts: i64,
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// End of the lockup.
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pub end_ts: i64,
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// Empty bytes for future upgrades.
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// TODO: what kinds of upgrades do we foresee?
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pub padding: [u8; 16],
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}
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impl Lockup {
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/// Returns the number of periods left on the lockup.
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pub fn periods_left(&self, curr_ts: i64) -> Result<u64> {
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Ok(self
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.periods_total()?
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.saturating_sub(self.period_current(curr_ts)?))
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}
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/// Returns the current period in the vesting schedule.
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pub fn period_current(&self, curr_ts: i64) -> Result<u64> {
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let period_secs = self.kind.period_secs();
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if period_secs == 0 {
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return Ok(0);
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}
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let d = u64::try_from({
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let secs_elapsed = curr_ts.saturating_sub(self.start_ts);
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secs_elapsed.checked_div(period_secs).unwrap()
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})
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.map_err(|_| ErrorCode::UnableToConvert)?;
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Ok(d)
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}
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/// Returns the total amount of periods in the lockup period.
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pub fn periods_total(&self) -> Result<u64> {
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let period_secs = self.kind.period_secs();
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if period_secs == 0 {
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return Ok(0);
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}
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// Number of seconds in the entire lockup.
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let lockup_secs = self.end_ts.checked_sub(self.start_ts).unwrap();
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require!(lockup_secs % period_secs == 0, InvalidLockupPeriod);
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// Total periods in the entire lockup.
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Ok(u64::try_from(lockup_secs.checked_div(period_secs).unwrap()).unwrap())
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}
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}
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#[repr(u8)]
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#[derive(AnchorSerialize, AnchorDeserialize, Debug, Clone, Copy)]
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pub enum LockupKind {
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None,
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Daily,
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Monthly,
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Cliff,
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}
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impl LockupKind {
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pub fn period_secs(&self) -> i64 {
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match self {
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LockupKind::None => 0,
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LockupKind::Daily => SECS_PER_DAY,
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LockupKind::Monthly => SECS_PER_MONTH,
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LockupKind::Cliff => SECS_PER_DAY, // arbitrary choice
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}
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}
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pub fn max_periods(&self) -> u64 {
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match self {
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LockupKind::None => 0,
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LockupKind::Daily => MAX_DAYS_LOCKED,
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LockupKind::Monthly => MAX_MONTHS_LOCKED,
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LockupKind::Cliff => MAX_DAYS_LOCKED,
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::state::deposit_entry::DepositEntry;
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#[test]
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pub fn days_left_start() -> Result<()> {
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run_test_days_left(TestDaysLeft {
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expected_days_left: 10,
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days_total: 10.0,
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curr_day: 0.0,
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})
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}
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#[test]
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pub fn days_left_one_half() -> Result<()> {
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run_test_days_left(TestDaysLeft {
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expected_days_left: 10,
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days_total: 10.0,
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curr_day: 0.5,
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})
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}
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#[test]
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pub fn days_left_one() -> Result<()> {
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run_test_days_left(TestDaysLeft {
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expected_days_left: 9,
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days_total: 10.0,
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curr_day: 1.0,
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})
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}
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#[test]
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pub fn days_left_one_and_one_half() -> Result<()> {
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run_test_days_left(TestDaysLeft {
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expected_days_left: 9,
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days_total: 10.0,
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curr_day: 1.5,
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})
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}
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#[test]
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pub fn days_left_9() -> Result<()> {
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run_test_days_left(TestDaysLeft {
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expected_days_left: 1,
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days_total: 10.0,
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curr_day: 9.0,
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})
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}
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#[test]
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pub fn days_left_9_dot_one() -> Result<()> {
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run_test_days_left(TestDaysLeft {
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expected_days_left: 1,
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days_total: 10.0,
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curr_day: 9.1,
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})
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}
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#[test]
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pub fn days_left_9_dot_nine() -> Result<()> {
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run_test_days_left(TestDaysLeft {
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expected_days_left: 1,
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days_total: 10.0,
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curr_day: 9.9,
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})
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}
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#[test]
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pub fn days_left_ten() -> Result<()> {
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run_test_days_left(TestDaysLeft {
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expected_days_left: 0,
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days_total: 10.0,
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curr_day: 10.0,
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})
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}
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#[test]
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pub fn days_left_eleven() -> Result<()> {
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run_test_days_left(TestDaysLeft {
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expected_days_left: 0,
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days_total: 10.0,
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curr_day: 11.0,
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})
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}
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#[test]
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pub fn months_left_start() -> Result<()> {
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run_test_months_left(TestMonthsLeft {
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expected_months_left: 10,
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months_total: 10.0,
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curr_month: 0.,
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})
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}
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#[test]
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pub fn months_left_one_half() -> Result<()> {
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run_test_months_left(TestMonthsLeft {
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expected_months_left: 10,
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months_total: 10.0,
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curr_month: 0.5,
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})
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}
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#[test]
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pub fn months_left_one_and_a_half() -> Result<()> {
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run_test_months_left(TestMonthsLeft {
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expected_months_left: 9,
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months_total: 10.0,
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curr_month: 1.5,
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})
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}
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#[test]
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pub fn months_left_ten() -> Result<()> {
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run_test_months_left(TestMonthsLeft {
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expected_months_left: 9,
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months_total: 10.0,
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curr_month: 1.5,
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})
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}
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#[test]
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pub fn months_left_eleven() -> Result<()> {
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run_test_months_left(TestMonthsLeft {
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expected_months_left: 0,
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months_total: 10.0,
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curr_month: 11.,
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})
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}
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#[test]
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pub fn voting_power_cliff_warmup() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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run_test_voting_power(TestVotingPower {
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expected_voting_power: 0, // 0 warmup.
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amount_deposited,
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days_total: 10.0,
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curr_day: -0.5,
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kind: LockupKind::Cliff,
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})
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}
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#[test]
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pub fn voting_power_cliff_start() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = (10 * amount_deposited) / MAX_DAYS_LOCKED;
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 0.5,
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kind: LockupKind::Cliff,
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})
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}
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#[test]
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pub fn voting_power_cliff_one_third_day() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = (10 * amount_deposited) / MAX_DAYS_LOCKED;
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 0.33,
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kind: LockupKind::Cliff,
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})
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}
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#[test]
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pub fn voting_power_cliff_half_day() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = (10 * amount_deposited) / MAX_DAYS_LOCKED;
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 0.5,
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kind: LockupKind::Cliff,
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})
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}
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#[test]
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pub fn voting_power_cliff_two_thirds_day() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = (10 * amount_deposited) / MAX_DAYS_LOCKED;
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 0.66,
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kind: LockupKind::Cliff,
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})
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}
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#[test]
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pub fn voting_power_cliff_one_day() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = (9 * amount_deposited) / MAX_DAYS_LOCKED;
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 1.0,
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kind: LockupKind::Cliff,
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})
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}
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#[test]
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pub fn voting_power_cliff_one_day_one_third() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = (9 * amount_deposited) / MAX_DAYS_LOCKED;
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 1.33,
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kind: LockupKind::Cliff,
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})
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}
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#[test]
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pub fn voting_power_cliff_two_days() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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// (8/2555) * deposit w/ 6 decimals.
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let expected_voting_power = (8 * amount_deposited) / MAX_DAYS_LOCKED;
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 2.0,
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kind: LockupKind::Cliff,
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})
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}
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#[test]
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pub fn voting_power_cliff_nine_dot_nine_days() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = amount_deposited / MAX_DAYS_LOCKED;
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 9.9,
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kind: LockupKind::Cliff,
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})
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}
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#[test]
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pub fn voting_power_cliff_ten_days() -> Result<()> {
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run_test_voting_power(TestVotingPower {
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expected_voting_power: 0, // (0/MAX_DAYS_LOCKED) * deposit w/ 6 decimals.
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amount_deposited: 10 * 1_000_000,
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days_total: 10.0,
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curr_day: 10.0,
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kind: LockupKind::Cliff,
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})
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}
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#[test]
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pub fn voting_power_cliff_ten_dot_one_days() -> Result<()> {
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run_test_voting_power(TestVotingPower {
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expected_voting_power: 0, // (0/MAX_DAYS_LOCKED) * deposit w/ 6 decimals.
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amount_deposited: 10 * 1_000_000, // 10 tokens with 6 decimals.
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days_total: 10.0,
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curr_day: 10.1,
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kind: LockupKind::Cliff,
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})
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}
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#[test]
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pub fn voting_power_cliff_eleven_days() -> Result<()> {
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run_test_voting_power(TestVotingPower {
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expected_voting_power: 0, // (0/MAX_DAYS_LOCKED) * deposit w/ 6 decimals.
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amount_deposited: 10 * 1_000_000, // 10 tokens with 6 decimals.
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days_total: 10.0,
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curr_day: 10.1,
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kind: LockupKind::Cliff,
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})
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}
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#[test]
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pub fn voting_power_daily_warmup() -> Result<()> {
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run_test_voting_power(TestVotingPower {
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expected_voting_power: 0, // (0/MAX_DAYS_LOCKED) * deposit w/ 6 decimals.
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amount_deposited: 10 * 1_000_000, // 10 tokens with 6 decimals.
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days_total: 10.0,
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curr_day: -1.0,
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kind: LockupKind::Daily,
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})
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}
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#[test]
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pub fn voting_power_daily_start() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = locked_daily_power(amount_deposited, 0, 10);
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 0.0,
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kind: LockupKind::Daily,
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})
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}
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#[test]
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pub fn voting_power_daily_one_half() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = locked_daily_power(amount_deposited, 0, 10);
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 0.5,
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kind: LockupKind::Daily,
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})
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}
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#[test]
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pub fn voting_power_daily_one() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = locked_daily_power(amount_deposited, 1, 10);
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 1.0,
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kind: LockupKind::Daily,
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})
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}
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#[test]
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pub fn voting_power_daily_one_and_one_third() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = locked_daily_power(amount_deposited, 1, 10);
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 1.3,
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kind: LockupKind::Daily,
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})
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}
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#[test]
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pub fn voting_power_daily_two() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = locked_daily_power(amount_deposited, 2, 10);
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 2.0,
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kind: LockupKind::Daily,
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})
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}
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#[test]
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pub fn voting_power_daily_nine() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = locked_daily_power(amount_deposited, 9, 10);
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 9.0,
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kind: LockupKind::Daily,
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})
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}
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#[test]
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pub fn voting_power_daily_nine_dot_nine() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = locked_daily_power(amount_deposited, 9, 10);
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 9.9,
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kind: LockupKind::Daily,
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})
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}
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#[test]
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pub fn voting_power_daily_ten() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = locked_daily_power(amount_deposited, 10, 10);
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 10.0,
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kind: LockupKind::Daily,
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})
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}
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#[test]
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pub fn voting_power_daily_ten_dot_one() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = locked_daily_power(amount_deposited, 10, 10);
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 10.1,
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kind: LockupKind::Daily,
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})
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}
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#[test]
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pub fn voting_power_daily_eleven() -> Result<()> {
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// 10 tokens with 6 decimals.
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let amount_deposited = 10 * 1_000_000;
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let expected_voting_power = locked_daily_power(amount_deposited, 11, 10);
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run_test_voting_power(TestVotingPower {
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expected_voting_power,
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amount_deposited,
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days_total: 10.0,
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curr_day: 11.0,
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kind: LockupKind::Daily,
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})
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}
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struct TestDaysLeft {
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expected_days_left: u64,
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days_total: f64,
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curr_day: f64,
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}
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struct TestMonthsLeft {
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expected_months_left: u64,
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months_total: f64,
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curr_month: f64,
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}
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struct TestVotingPower {
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amount_deposited: u64,
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days_total: f64,
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curr_day: f64,
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expected_voting_power: u64,
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kind: LockupKind,
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}
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fn run_test_days_left(t: TestDaysLeft) -> Result<()> {
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let start_ts = 1634929833;
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let end_ts = start_ts + days_to_secs(t.days_total);
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let curr_ts = start_ts + days_to_secs(t.curr_day);
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let l = Lockup {
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kind: LockupKind::Cliff,
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start_ts,
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end_ts,
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padding: [0u8; 16],
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};
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let days_left = l.periods_left(curr_ts)?;
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assert_eq!(days_left, t.expected_days_left);
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Ok(())
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}
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fn run_test_months_left(t: TestMonthsLeft) -> Result<()> {
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let start_ts = 1634929833;
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let end_ts = start_ts + months_to_secs(t.months_total);
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let curr_ts = start_ts + months_to_secs(t.curr_month);
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let l = Lockup {
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kind: LockupKind::Monthly,
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start_ts,
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end_ts,
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padding: [0u8; 16],
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};
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let months_left = l.periods_left(curr_ts)?;
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assert_eq!(months_left, t.expected_months_left);
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Ok(())
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}
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fn run_test_voting_power(t: TestVotingPower) -> Result<()> {
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let start_ts = 1634929833;
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let end_ts = start_ts + days_to_secs(t.days_total);
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let d = DepositEntry {
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is_used: true,
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rate_idx: 0,
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amount_deposited_native: t.amount_deposited,
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amount_initially_locked_native: t.amount_deposited,
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allow_clawback: false,
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lockup: Lockup {
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start_ts,
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end_ts,
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kind: t.kind,
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padding: [0u8; 16],
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},
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};
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let curr_ts = start_ts + days_to_secs(t.curr_day);
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let power = d.voting_power_locked(curr_ts, t.amount_deposited)?;
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assert_eq!(power, t.expected_voting_power);
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Ok(())
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}
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fn days_to_secs(days: f64) -> i64 {
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let d = (SECS_PER_DAY as f64) * days;
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d.round() as i64
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}
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fn months_to_secs(months: f64) -> i64 {
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let d = (SECS_PER_MONTH as f64) * months;
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d.round() as i64
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}
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// Calculates locked voting power. Done iteratively as a sanity check on
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// the closed form calcuation.
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//
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// deposit - the amount locked up
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// day - the current day in the lockup period
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// total_days - the number of days locked up
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fn locked_daily_power(amount: u64, day: u64, total_days: u64) -> u64 {
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if day >= total_days {
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return 0;
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}
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let days_remaining = total_days - day;
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let mut total = 0f64;
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for k in 1..=days_remaining {
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// We have 'days_remaining' remaining cliff-locked deposits of
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// amount / total_days each. Each of these deposits gets a scaling
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// of k / MAX_DAYS_LOCKED.
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total += (k as f64 * amount as f64) / (MAX_DAYS_LOCKED as f64 * total_days as f64)
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}
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total.floor() as u64
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}
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}
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