# IAlgebraPoolEvents

## Events

### Initialize

`Initialize(uint160,int24)`

Emitted exactly once by a pool when #initialize is first called on the pool

| Name  | Type    | Description                                                                          |
| ----- | ------- | ------------------------------------------------------------------------------------ |
| price | uint160 | The initial sqrt price of the pool, as a Q64.96                                      |
| tick  | int24   | The initial tick of the pool, i.e. log base 1.0001 of the starting price of the pool |

### Mint

`Mint(address,address,int24,int24,uint128,uint256,uint256)`

Emitted when liquidity is minted for a given position

| Name            | Type    | Description                                                     |
| --------------- | ------- | --------------------------------------------------------------- |
| sender          | address | The address that minted the liquidity                           |
| owner           | address | The owner of the position and recipient of any minted liquidity |
| bottomTick      | int24   | The lower tick of the position                                  |
| topTick         | int24   | The upper tick of the position                                  |
| liquidityAmount | uint128 | The amount of liquidity minted to the position range            |
| amount0         | uint256 | How much token0 was required for the minted liquidity           |
| amount1         | uint256 | How much token1 was required for the minted liquidity           |

### Collect

`Collect(address,address,int24,int24,uint128,uint128)`

Emitted when fees are collected by the owner of a position

| Name       | Type    | Description                                            |
| ---------- | ------- | ------------------------------------------------------ |
| owner      | address | The owner of the position for which fees are collected |
| recipient  | address | The address that received fees                         |
| bottomTick | int24   | The lower tick of the position                         |
| topTick    | int24   | The upper tick of the position                         |
| amount0    | uint128 | The amount of token0 fees collected                    |
| amount1    | uint128 | The amount of token1 fees collected                    |

### Burn

`Burn(address,int24,int24,uint128,uint256,uint256)`

Emitted when a position's liquidity is removed

| Name            | Type    | Description                                              |
| --------------- | ------- | -------------------------------------------------------- |
| owner           | address | The owner of the position for which liquidity is removed |
| bottomTick      | int24   | The lower tick of the position                           |
| topTick         | int24   | The upper tick of the position                           |
| liquidityAmount | uint128 | The amount of liquidity to remove                        |
| amount0         | uint256 | The amount of token0 withdrawn                           |
| amount1         | uint256 | The amount of token1 withdrawn                           |

### Swap

`Swap(address,address,int256,int256,uint160,uint128,int24)`

Emitted by the pool for any swaps between token0 and token1

| Name      | Type    | Description                                                              |
| --------- | ------- | ------------------------------------------------------------------------ |
| sender    | address | The address that initiated the swap call, and that received the callback |
| recipient | address | The address that received the output of the swap                         |
| amount0   | int256  | The delta of the token0 balance of the pool                              |
| amount1   | int256  | The delta of the token1 balance of the pool                              |
| price     | uint160 | The sqrt(price) of the pool after the swap, as a Q64.96                  |
| liquidity | uint128 | The liquidity of the pool after the swap                                 |
| tick      | int24   | The log base 1.0001 of price of the pool after the swap                  |

### Flash

`Flash(address,address,uint256,uint256,uint256,uint256)`

Emitted by the pool for any flashes of token0/token1

| Name      | Type    | Description                                                                        |
| --------- | ------- | ---------------------------------------------------------------------------------- |
| sender    | address | The address that initiated the swap call, and that received the callback           |
| recipient | address | The address that received the tokens from flash                                    |
| amount0   | uint256 | The amount of token0 that was flashed                                              |
| amount1   | uint256 | The amount of token1 that was flashed                                              |
| paid0     | uint256 | The amount of token0 paid for the flash, which can exceed the amount0 plus the fee |
| paid1     | uint256 | The amount of token1 paid for the flash, which can exceed the amount1 plus the fee |

### CommunityFee

`CommunityFee(uint8,uint8)`

Emitted when the community fee is changed by the pool

| Name             | Type  | Description                                           |
| ---------------- | ----- | ----------------------------------------------------- |
| communityFee0New | uint8 | The updated value of the token0 community fee percent |
| communityFee1New | uint8 | The updated value of the token1 community fee percent |

### Incentive

`Incentive(address)`

Emitted when new activeIncentive is set

| Name               | Type    | Description                                                                |
| ------------------ | ------- | -------------------------------------------------------------------------- |
| virtualPoolAddress | address | The address of a virtual pool associated with the current active incentive |

### Fee

`Fee(uint16)`

Emitted when the fee changes

| Name | Type   | Description                |
| ---- | ------ | -------------------------- |
| fee  | uint16 | The value of the token fee |

### LiquidityCooldown

`LiquidityCooldown(uint32)`

Emitted when the LiquidityCooldown changes

| Name              | Type   | Description                               |
| ----------------- | ------ | ----------------------------------------- |
| liquidityCooldown | uint32 | The value of locktime for added liquidity |

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