# Staking Pools

The new ScadsPool is a new $SCADS staking contract built based on the manual Staking and designed to work with Scads MasterChef v1 to provide "stake $SCADS, earn multiple rewards($SCADS, $SNACKS...)".

### Do I need to migrate? 

If you are currently using old MasterChef, you will need to migrate to the new contract.

### No compounding

No need compounding yet because Scads V1 has only manual staking pools.

### Fees 

{% hint style="info" %}
Pools don't set any type of fees yet in Scads V1. 
{% endhint %}

### Overview

#### Deposit

If you are currently using the `enterStaking(uint256 _amount)` on the current Scads MasterChef. You need to migrate to `deposit(uint256 _amount).`

#### Staking Balance and Fees

```
struct UserInfo {
    uint256 amount; // How many staked tokens the user has provided
    uint256 rewardDebt; // Reward debt of zoinks. See explanation below.
    uint256 rewardDebtSnacks; // Reward debt of snacks. See explanation below.
    uint lastWithdrawDate; // Last Withdraw Time
}
```

#### Pending Rewards 

```
/*
* @notice View function to see pending reward on frontend.
* @param _user: user address
* @return Pending reward for a given user
*/
function pendingReward(address _user) external view returns (uint256) {
  return userInfo[_user].rewardDebt;
}
```

#### Withdraw

If you are using the `leaveStaking(uint256 _amount)` method on the current Scads MasterChef. You need to migrate to `withdraw(uint256 _shares)`.

```
/*
 * @notice Withdraw staked tokens and collect reward tokens
 * @param _amount: amount to withdraw (in rewardToken)
 */
function withdraw(uint256 _amount) external nonReentrant {
    UserInfo storage user = userInfo[msg.sender];
    require(user.amount >= _amount, "Amount to withdraw too high");
   
    if (_amount > 0) {
        user.amount = user.amount.sub(_amount);
        totalStakedZoinks = totalStakedZoinks.sub(_amount);

        if (user.lastWithdrawDate == 0 || (user.lastWithdrawDate + 1 days > block.timestamp)) {
            stakedToken.safeTransfer(seniorageAddress, _amount.div(2));
            stakedToken.safeTransfer(address(msg.sender), _amount.div(2));
        emit Withdraw(msg.sender, _amount.div(2));
        emit Withdraw(seniorageAddress, _amount.div(2));
        } else {
            stakedToken.safeTransfer(address(msg.sender), _amount);
    emit Withdraw(msg.sender, _amount);
        }
        user.lastWithdrawDate = block.timestamp;
    }

    rewardTransfer();
}
```

#### How to calculate the total rewards distributed to the new Scads pool?

The multiple reward is generated irregularly whenever Scads Inflation and $SNACS buy/buyback in Scads V1. So it's impossible to calculate the correct rewards amount in advance. Please check below to discover more details of how to provide/calculate rewards.

{% content-ref url="/pages/Zi8njJagIheYtm0tRZPV" %}
[Pools](/zoinkswap/products/pools.md)
{% endcontent-ref %}

### **Mainnet Contract Address**

{% hint style="info" %}
Pool Contract is not deployed on mainnet yet in Scads V1.
{% endhint %}

**Contract name:** Scads Pool\
**Contract address:** 

View the Scads: ScadsPool Contract on BscScan.

### **Testnet Environment**

You can use the following testnet environment to test the integration of your project with the new Scads Pool. If you have any questions, please contact us.

**Dummy Tokens:**

* $SCADS: `0xAeD1DeC6F344d70240BCC02514B599eA68f35582`\
  (mintable by using `mint(address _to, uint256 _amount) public`)
* $WBNB: `0xae13d989daC2f0dEbFf460aC112a837C89BAa7cd`

#### Factory and Router

* Factory V1: `0xc4FF830D46414bD3Aeb0Dd0942Ce044a860555c7`
* Router V1: `0x8e0A7Fde7E549Ea689c27A79d26798Cf8F27C8e8`

#### MasterChef

* v1: `0x97B631AcBAC4C38Bb0AA18691ea60dB2754609FB`
  * pid0: Manual SCADS
  * pid4: Dummy Pool for MasterChef v1

#### SCADS Pool

`0x3a88e377a53310d829262F8b747a82512B74EA47`

#### SNACKS Pool

0xc474FF61B82416d06B0535F5DB5ecAeFC64fca97


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