// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity =0.7.6;

import '@aetherswap/periphery/contracts/interfaces/INonfungiblePositionManager.sol';
import '@aetherswap/core-contracts/contracts/interfaces/IAetherFactory.sol';
import '@aetherswap/core-contracts/contracts/interfaces/IAetherPool.sol';

import '@aetherswap/periphery/contracts/libraries/PoolAddress.sol';

/// @notice Encapsulates the logic for getting info about a NFT token ID
library NFTPositionInfo {
    /// @param factory The address of the Aether Factory used in computing the pool address
    /// @param nonfungiblePositionManager The address of the nonfungible position manager to query
    /// @param tokenId The unique identifier of an Aether LP token
    /// @return pool The address of the Aether pool
    /// @return tickLower The lower tick of the Aether position
    /// @return tickUpper The upper tick of the Aether position
    /// @return liquidity The amount of liquidity staked
    function getPositionInfo(
        IAetherFactory factory,
        INonfungiblePositionManager nonfungiblePositionManager,
        uint256 tokenId
    ) internal view returns (IAetherPool pool, int24 tickLower, int24 tickUpper, uint128 liquidity) {
        address token0;
        address token1;
        uint24 fee;
        (, , token0, token1, fee, tickLower, tickUpper, liquidity, , , , ) = nonfungiblePositionManager.positions(
            tokenId
        );

        pool = IAetherPool(
            PoolAddress.computeAddress(
                address(factory),
                PoolAddress.PoolKey({token0: token0, token1: token1, fee: fee})
            )
        );
    }
}