> For the complete documentation index, see [llms.txt](https://betfin.gitbook.io/betfin-public/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://betfin.gitbook.io/betfin-public/smartcontracts-description/dynamic-staking/dynamic-staking-pool.md).

# Dynamic Staking Pool

The `DynamicStakingPool` smart contract is a versatile and secure solution for creating dynamic staking pools. This contract utilizes several OpenZeppelin libraries for added security and functionality, including `AccessControl`, `ERC20`, `Math`, and `ReentrancyGuard`.

### Features

* **Dynamic Profit Distribution**: Automatically distributes profits among stakers based on their stake in the pool.
* **Reentrancy Guard**: Protects against reentrancy attacks, ensuring the security of transactions.
* **Access Control**: Implements role-based access control, allowing only authorized addresses to perform certain actions.
* **Event Logging**: Logs significant actions and changes through events for transparency and tracking.

### Variables

* `duration`: Duration of the staking pool.
* `startCycle`: The start timestamp of the staking cycle.
* `totalStaked`: Total amount of tokens staked in the pool.
* `totalProfit`: Total profit earned by stakers.

### Functions

* `getStakersCount()`: Returns the number of stakers in the pool.
* `getStake(address staker)`: Returns the stake information for a specific staker.
* `isStaker(address staker)`: Checks if an address is a staker in the pool.
* `isFull()`: Checks if the pool has reached its maximum capacity.
* `getClaimed(address staker)`: Returns the amount of profit claimed by a staker.
* `stake(address staker, uint256 amount)`: Allows an authorized role to add a stake for a staker.
* `withdraw()`: Withdraws staked tokens and distributes profits at the end of the staking cycle.
* `profit(uint256 _profit)`: Records profit to be distributed among stakers.
* `loss(uint256 amount)`: Records a loss, reducing the real stake amount.
* `distributeProfit()`: Distributes profits among stakers based on their stake.