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https://github.com/pyk/llamalocker

Lock your LLAMAs to claim share of yields
https://github.com/pyk/llamalocker

ethereum nft

Last synced: 10 days ago
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Lock your LLAMAs to claim share of yields

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README

          

# Llama Locker

Llama Locker allows users to lock their LLAMA tokens and earn a share of the
yield generated by the treasury over time. It manages epochs, reward token
distribution, and token locking/unlocking, ensuring fair and transparent reward
distribution.

## Lock Mechanism

- Locked NFTs cannot be withdrawn for 4 epochs (4 weeks) and are eligible to
receive a proportionate share of yields during this period.
- Unlike the CVX Lock style, which requires active kicking out of tokens after
the lock duration ends, LlamaLocker offers a more user-friendly approach.
- NFT owners can withdraw their NFTs in the epoch after the lock duration ends.
If not withdrawn, the NFTs will automatically re-lock for the subsequent lock
duration, streamlining the process and saving users on gas costs.

### Example of Lock Mechanism

1. Alice locks Llama #1 on January 28, 2024, at 22:49:42 GMT.
2. Llama #1 starts accruing yields from February 1, 2024, at 00:00:00 GMT (next epoch).
3. Withdrawal of Llama #1 is possible anytime from February 29, 2024, at 00:00:00 GMT to March 7, 2024, at 00:00:00 GMT (one-week epoch).
4. If Llama #1 remains unwithdrawn during this window, it will automatically re-lock starting March 7, 2024, at 00:00:00 GMT.

## Getting Started

Ensure you are using the latest version of Foundry:

```shell
foundryup
```

Install dependencies:

```shell
forge install
```

Run the tests:

```shell
forge test
```

Example output:

```
$ forge test
[⠊] Compiling...
[⠑] Compiling 1 files with Solc 0.8.23
[⠘] Solc 0.8.23 finished in 1.71s
Compiler run successful!

Ran 1 test for test/LlamaLocker.t.sol:LlamaLockerTest
[PASS] test_renounceOwnership_InvalidAction() (gas: 13389)
Suite result: ok. 1 passed; 0 failed; 0 skipped; finished in 1.44ms (93.38µs CPU time)

Ran 4 tests for test/AddRewardTokens.t.sol:AddRewardTokensTest
[PASS] test_addRewardTokens_InvalidRewardToken() (gas: 92195)
[PASS] test_addRewardTokens_InvalidRewardTokenCount() (gas: 13954)
[PASS] test_addRewardTokens_Unauthorized() (gas: 14191)
[PASS] test_addRewardTokens_Valid() (gas: 133255)
Suite result: ok. 4 passed; 0 failed; 0 skipped; finished in 1.60ms (179.63µs CPU time)

Ran 8 tests for test/Whitelist.t.sol:RewardDistributionTest
[PASS] test_disableWhitelist_InvalidAction() (gas: 20211)
[PASS] test_disableWhitelist_Unauthorized() (gas: 13655)
[PASS] test_disableWhitelist_Valid() (gas: 19409)
[PASS] test_lock_InvalidAction() (gas: 115192)
[PASS] test_lock_Valid() (gas: 225023)
[PASS] test_setRoot_InvalidAction() (gas: 15583)
[PASS] test_setRoot_Unauthorized() (gas: 13695)
[PASS] test_setRoot_Valid() (gas: 19625)
Suite result: ok. 8 passed; 0 failed; 0 skipped; finished in 1.65ms (751.29µs CPU time)

Ran 6 tests for test/LockMechanism.t.sol:LockMechanismTest
[PASS] test_lock_InvalidTokenCount() (gas: 11454)
[PASS] test_lock_Valid() (gas: 496076)
[PASS] test_unlock_InvalidLockOwner() (gas: 225991)
[PASS] test_unlock_InvalidTokenCount() (gas: 9265)
[PASS] test_unlock_InvalidUnlockWindow() (gas: 246840)
[PASS] test_unlock_ValidUnlockWindow() (gas: 222618)
Suite result: ok. 6 passed; 0 failed; 0 skipped; finished in 1.71ms (784.38µs CPU time)

Ran 5 tests for test/RewardDistribution.t.sol:RewardDistributionTest
[PASS] test_distributeRewardToken_Claimables() (gas: 1020171)
[PASS] test_distributeRewardToken_InvalidRewardAmount() (gas: 134541)
[PASS] test_distributeRewardToken_InvalidRewardToken() (gas: 17599)
[PASS] test_distributeRewardToken_InvalidTotalShares() (gas: 136631)
[PASS] test_distributeRewardToken_Unauthorized() (gas: 13900)
Suite result: ok. 5 passed; 0 failed; 0 skipped; finished in 2.06ms (1.10ms CPU time)

Ran 1 test for test/OffchainQuery.sol:LockMechanismTest
[PASS] test_getLocks() (gas: 11133290)
Suite result: ok. 1 passed; 0 failed; 0 skipped; finished in 11.34ms (9.86ms CPU time)

Ran 6 test suites in 161.35ms (19.81ms CPU time): 25 tests passed, 0 failed, 0 skipped (25 total tests)
```

## Generate Merkle Tree

Install dependencies:

```sh
pnpm install
```

Update the `whitelist.txt` file.

Then get the merkle tree root and proofs via the following command:

```sh
pnpm run gen:merkle
```

Check the proof inside `merkle-proofs.json`.

## Front End Integration

There are two main actions for users:

1. **Lock NFT:** Users can lock their NFT via `lock(proofs, tokenIds)`
for whitelisted user and `lock(tokenIds)` for public.
2. **Unlock NFT:** Users can unlock their NFT via `unlock`.

Additional information:

- Claimable rewards are available via `claimables(account)`.
- Claimed rewards are available via `getClaimedRewards(account)`.
- Lock information can be retrieved via `locks(nftId)`.

To compute the next unlock for the specified NFT, use the following formula:

```shell
lockedDuration = currentTimestamp - lockedAt
lockedDurationInEpoch = lockedDuration / EPOCH_DURATION
modulo = lockedDurationInEpoch % LOCK_DURATION_IN_EPOCH
unlockNextEpoch = LOCK_DURATION_IN_EPOCH - modulo
unlockStart = currentTimestamp + (unlockNextEpoch * EPOCH_DURATION)
unlockEnd = unlockStart + EPOCH_DURATION
```

`unlockStart` and `unlockEnd` define a time window in Unix timestamp when users can unlock their locked NFTs.

Admin actions:

- Admin can add a new reward token via `addRewardToken`.
- Admin can distribute weekly rewards via `distributeRewardToken`.
- Admin need to approve the LlamaLocker contract before executing `distributeRewardToken`.
- Admin can set new merkle tree root via `setRoot(root)` (for rolling whitelist)
- Admin can disable the whitelist via `disableWhitelist()` (for public launch)

## Gas Report

```
| src/LlamaLocker.sol:LlamaLocker contract | | | | | |
|------------------------------------------|-----------------|---------|---------|---------|---------|
| Deployment Cost | Deployment Size | | | | |
| 2020278 | 9131 | | | | |
| Function Name | min | avg | median | max | # calls |
| addRewardTokens | 24227 | 78136 | 84896 | 139290 | 10 |
| claim | 162883 | 162883 | 162883 | 162883 | 1 |
| claimable | 2401 | 3067 | 2401 | 4401 | 12 |
| disableWhitelist | 23478 | 28734 | 29335 | 29335 | 16 |
| distributeRewardToken | 24051 | 45139 | 28627 | 81528 | 7 |
| getLocks | 8018452 | 8018452 | 8018452 | 8018452 | 1 |
| getLocksByOwner | 1364152 | 1364152 | 1364152 | 1364152 | 2 |
| getRewardTokenCount | 370 | 370 | 370 | 370 | 1 |
| lock(bytes32[],uint256[]) | 26080 | 95257 | 95257 | 164435 | 2 |
| lock(uint256[]) | 24103 | 147342 | 160540 | 183588 | 12 |
| renounceOwnership | 23504 | 23504 | 23504 | 23504 | 1 |
| root | 350 | 350 | 350 | 350 | 1 |
| setRoot | 24077 | 26788 | 26180 | 30107 | 3 |
| unlock | 21914 | 33682 | 28960 | 78956 | 9 |
| whitelistDisabled | 378 | 378 | 378 | 378 | 1 |
```

Assuming gas fee is 10gwei:

- Deployment: 0,00000001 * 2020278 = 0,02020278 ETH
- `claim`: 0,00000001 * 162883 = 0,00162883 ETH
- `lock(bytes32[],uint256[])` (lock for whitelisted addy): 0,00000001 * 95257 = 0,00095257 ETH
- `lock(uint256[])`: 0,00000001 * 147342 = 0,00147342 ETH
- `unlock`: 0,00000001 * 33682 = 0,00033682 ETH