# Ticket: Need a Multicall Contract for Arbitrary Contract Functions

## Environment

1. 模擬 transaction: https://dashboard.tenderly.co/
2. 鏈：Arbitrum
3. ABI: https://github.com/david30907d/all-weather-scaffold/blob/master/packages/react-app/src/contracts/external_contracts.js#LL5361C1-L5361C1

<!-- 1. Function: `claimPendleReward()`:
* Param:
1. address pendleContract: `0x0000000001e4ef00d069e71d6ba041b0a16f7ea0`
2. address glpMarketAddress: `0x7d49e5adc0eaad9c027857767638613253ef125f`
3. address gdaiMarketAddress: `0xa0192f6567f8f5dc38c53323235fd08b318d2dca`
* From (my wallet address): `0x7ee54ab0f204bb3a83df90fdd824d8b4abe93222`
* Multicall Version:
* Byte: `["0x683b70420000000000000000000000000000000001e4ef00d069e71d6ba041b0a16f7ea00000000000000000000000007d49e5adc0eaad9c027857767638613253ef125f000000000000000000000000a0192f6567f8f5dc38c53323235fd08b318d2dca"]` -->

## 失敗案例（Withdraw from Radiant's Lending Pool）:
* 直接執行 Radiant 的 withdraw(成功）：
* Contract Address: `0xF4B1486DD74D07706052A33d31d7c0AAFD0659E1`
* Function: `withdraw`
* Param:
* asset: `0x2f2a2543b76a4166549f7aab2e75bef0aefc5b0f`
* amount: `115792089237316195423570985008687907853269984665640564039457584007913129639935` (這數字是`0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff` 的 uint256)
* to: `0x43cd745bd5fbfc8cfd79ebc855f949abc79a1e0c`
* From: `0x43cd745bd5fbfc8cfd79ebc855f949abc79a1e0c`
* Use [MakerDAO's Multicall Contract](https://github.com/Impermanent-Loss-Protocol/contracts/blob/dev/contracts/Multicall2.sol#L20) with Delegate Call (transaction 有完成但是錢沒有真的領出來, 只會浪費 gas 啥都領不到):
* Contract: `0xE5C1DB3d984458863aADbCF2b9684bA3a15123B7`
* Function: `aggregate`
* Param: Aggregate吃一個 tuple, 裡面放一堆你想 multicall 的 obj

        [
            {
                "target": "0xF4B1486DD74D07706052A33d31d7c0AAFD0659E1",
                "callData": "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"
            }
        ]

* 如何生成 calldata? 可以用 ethers 加上這份 [ABI](https://github.com/david30907d/all-weather-scaffold/blob/master/packages/react-app/src/contracts/external_contracts.js#LL5361C1-L5361C1) 去生

            writeContracts.RadiantLendingPool.interface.encodeFunctionData(
                    "withdraw(address,uint256,address)",
                    ["0x2f2a2543b76a4166549f7aab2e75bef0aefc5b0f", BigNumber.from("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), "0x43cd745bd5fbfc8cfd79ebc855f949abc79a1e0c"],
                )

* 直接寫個合約在裡面使用 Function Call(會被 revert)
* [github](https://github.com/Impermanent-Loss-Protocol/contracts/blob/dev/contracts/ArbitrumClaimableReward.sol#L20)
* Contract: `0xa4344cd2362425ce474cb3be5ac2a674608e5a36`
* Function: `withdrawRadiantLending`
* Params:
* radiantContract: `0x76ba3eC5f5adBf1C58c91e86502232317EeA72dE`
* radiantLendingContract: `0xF4B1486DD74D07706052A33d31d7c0AAFD0659E1`
* assets: `["0x2f2a2543B76A4166549F7aaB2e75Bef0aefC5B0f", "0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9"]`
* amount: `115792089237316195423570985008687907853269984665640564039457584007913129639935`
* to: `0x43cd745Bd5FbFc8CfD79ebC855f949abc79a1E0C`