# Utils

This contract can check asset details and swap estimates of KLAYswap service

## Address

* Cypress : [0x7A74B3be679E194E1D6A0C29A343ef8D2a5AC876](https://scope.klaytn.com/account/0x7A74B3be679E194E1D6A0C29A343ef8D2a5AC876?tabId=contractCode)

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{% tab title="Read-Only Functions" %}

## Read-Only Functions

**getPoolData**

```solidity
function getPoolData(address lp) public view returns (
        uint miningRate,
        uint rateDecimals,
        address tokenA,
        uint reserveA,
        address tokenB,
        uint reserveB,
        uint airdropCount,
        address[] memory airdropTokens,
        uint[] memory airdropSettings 
    )
```

* Amount of TokenA held by LP
* Airdrop only between startBlock and endBlock of blocks in the network
* Parameters
  * `miningRate` : KSP distribution ratio numerator value
  * `rateDecimals` : KSP distribution ratio denominator
    * 예) Daily KSP distribution ratio
      * miningRate - 130323276365080043, rateDecimals - 10000000000000000
      * 130323276365080043 / 10000000000000000 = 13.03...%
  * `tokenA` : LP tokenA
  * `reserveA` : Amount of tokenA held by LP
  * `tokenB` : LP tokenB
  * `reserveB` : Amount of tokenB held by LP
  * `airdropCount` : Number of airdrop plans in progress at LP
  * `airdropTokens` : Airdrop token address array
  * `airdropSettings` : Airdrop info array
    * \[0]: blockAmount, \[1]: startBlock, \[2]: endBlock
* `airdropSettings` Data format
  * 예) TokenA, TokenB Airdrop   
    * airdropTokens = \[ TokenA address, TokenB address]
    * airdropSettings = \[ TokenA blockAmount, TokenA startBlock, TokenA endBlock, TokenB blockAmount, TokenB startBlock, TokenB endBlock ]

**getPendingReward**

```solidity
function getPendingReward(address lp, address user) public view returns ( 
    uint kspReward, 
    uint airdropCount, 
    address[] memory airdropTokens, 
    uint[] memory airdropRewards 
)
```

* User's claimable reward information
* Parameters
  * `kspReward` : Claimable KSP
  * `airdropCount` : Number of airdrop plans the LP has
  * `airdropTokens` : Airdrop token address array
  * `airdropRewards` : Arrangement of Airdrop token amount Information claimable
* `airdrop` data format
  * 예) TokenA, TokenB Airdrop 
    * airdropTokens = \[ TokenA address, TokenB address]
    * airdropSettings = \[ TokenA reward, TokenB reward ]

**estimateSwap**

```solidity
function estimateSwap(
    address tokenIn, 
    address tokenOut, 
    uint amountIn, 
    address[] memory path
) public view returns (uint amountOut)
```

* KLAYswap swap estimate lookup function
* Input Parameters
  * `tokenIn` : Token address to be exchanged
  * `tokenOut` : Token address to receive
  * `amountIn` : Token amount to be exchanged
  * `path` : exchange route
* example
  * KLAY -> KSP
    * tokenIn = KLAY token address
    * tokenOut = KSP token address
    * amountIn = 1e18 ( = 1 KLAY )
    * path = \[]
  * KLAY -> ORC -> KSP
    * tokenIn = KLAY token address
    * tokenOut = KSP token address
    * amountIn = 1e18 ( = 1 KLAY )
    * path = \["{ORC token Address}"]
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