# IApproveAndCall

### Functions <a href="#functions" id="functions"></a>

#### getApprovalType <a href="#getapprovaltype" id="getapprovaltype"></a>

*Lens to be called off-chain to determine which (if any) of the relevant approval functions should be called*

```solidity
function getApprovalType(address token, uint256 amount) external returns (ApprovalType);
```

**Parameters**

| Name     | Type      | Description           |
| -------- | --------- | --------------------- |
| `token`  | `address` | The token to approve  |
| `amount` | `uint256` | The amount to approve |

**Returns**

| Name     | Type           | Description                |
| -------- | -------------- | -------------------------- |
| `<none>` | `ApprovalType` | The required approval type |

#### approveMax <a href="#approvemax" id="approvemax"></a>

Approves a token for the maximum possible amount

```solidity
function approveMax(address token) external payable;
```

**Parameters**

| Name    | Type      | Description          |
| ------- | --------- | -------------------- |
| `token` | `address` | The token to approve |

#### approveMaxMinusOne <a href="#approvemaxminusone" id="approvemaxminusone"></a>

Approves a token for the maximum possible amount minus one

```solidity
function approveMaxMinusOne(address token) external payable;
```

**Parameters**

| Name    | Type      | Description          |
| ------- | --------- | -------------------- |
| `token` | `address` | The token to approve |

#### approveZeroThenMax <a href="#approvezerothenmax" id="approvezerothenmax"></a>

Approves a token for zero, then the maximum possible amount

```solidity
function approveZeroThenMax(address token) external payable;
```

**Parameters**

| Name    | Type      | Description          |
| ------- | --------- | -------------------- |
| `token` | `address` | The token to approve |

#### approveZeroThenMaxMinusOne <a href="#approvezerothenmaxminusone" id="approvezerothenmaxminusone"></a>

Approves a token for zero, then the maximum possible amount minus one

```solidity
function approveZeroThenMaxMinusOne(address token) external payable;
```

**Parameters**

| Name    | Type      | Description          |
| ------- | --------- | -------------------- |
| `token` | `address` | The token to approve |

#### callPositionManager <a href="#callpositionmanager" id="callpositionmanager"></a>

Calls the position manager with arbitrary calldata

```solidity
function callPositionManager(bytes memory data) external payable returns (bytes memory result);
```

**Parameters**

| Name   | Type    | Description                                    |
| ------ | ------- | ---------------------------------------------- |
| `data` | `bytes` | Calldata to pass along to the position manager |

**Returns**

| Name     | Type    | Description              |
| -------- | ------- | ------------------------ |
| `result` | `bytes` | The result from the call |

#### mint <a href="#mint" id="mint"></a>

Calls the position manager's mint function

```solidity
function mint(MintParams calldata params) external payable returns (bytes memory result);
```

**Parameters**

| Name     | Type         | Description                                    |
| -------- | ------------ | ---------------------------------------------- |
| `params` | `MintParams` | Calldata to pass along to the position manager |

**Returns**

| Name     | Type    | Description              |
| -------- | ------- | ------------------------ |
| `result` | `bytes` | The result from the call |

#### increaseLiquidity <a href="#increaseliquidity" id="increaseliquidity"></a>

Calls the position manager's increaseLiquidity function

```solidity
function increaseLiquidity(IncreaseLiquidityParams calldata params) external payable returns (bytes memory result);
```

**Parameters**

| Name     | Type                      | Description                                    |
| -------- | ------------------------- | ---------------------------------------------- |
| `params` | `IncreaseLiquidityParams` | Calldata to pass along to the position manager |

**Returns**

| Name     | Type    | Description              |
| -------- | ------- | ------------------------ |
| `result` | `bytes` | The result from the call |

### Structs <a href="#structs" id="structs"></a>

#### MintParams <a href="#mintparams" id="mintparams"></a>

```solidity
struct MintParams {
    address token0;
    address token1;
    uint24 fee;
    int24 tickLower;
    int24 tickUpper;
    uint256 amount0Min;
    uint256 amount1Min;
    address recipient;
}
```

#### IncreaseLiquidityParams <a href="#increaseliquidityparams" id="increaseliquidityparams"></a>

```solidity
struct IncreaseLiquidityParams {
    address token0;
    address token1;
    uint256 tokenId;
    uint256 amount0Min;
    uint256 amount1Min;
}
```

### Enums <a href="#enums" id="enums"></a>

#### ApprovalType <a href="#approvaltype" id="approvaltype"></a>

```solidity
enum ApprovalType {
    NOT_REQUIRED,
    MAX,
    MAX_MINUS_ONE,
    ZERO_THEN_MAX,
    ZERO_THEN_MAX_MINUS_ONE
}
```