// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

import {ICreatorCommands} from "../../interfaces/ICreatorCommands.sol";

/// @title SaleCommandHelper
/// @notice Helper library for creating commands for the sale contract
/// @author @iainnash / @tbtstl
library SaleCommandHelper {
    /// @notice Sets the size of commands and initializes command array. Empty entries are skipped by the resolver.
    /// @dev Beware: this removes all previous command entries from memory
    /// @param commandSet command set struct storage.
    /// @param size size to set for the new struct
    function setSize(ICreatorCommands.CommandSet memory commandSet, uint256 size) internal pure {
        commandSet.commands = new ICreatorCommands.Command[](size);
    }

    /// @notice Creates a command to mint a token
    /// @param commandSet The command set to add the command to
    /// @param to The address to mint to
    /// @param tokenId The token ID to mint
    /// @param quantity The quantity of tokens to mint
    function mint(ICreatorCommands.CommandSet memory commandSet, address to, uint256 tokenId, uint256 quantity) internal pure {
        unchecked {
            commandSet.commands[commandSet.at++] = ICreatorCommands.Command({
                method: ICreatorCommands.CreatorActions.MINT,
                args: abi.encode(to, tokenId, quantity)
            });
        }
    }

    /// @notice Creates a command to transfer ETH
    /// @param commandSet The command set to add the command to
    /// @param to The address to transfer to
    /// @param amount The amount of ETH to transfer
    function transfer(ICreatorCommands.CommandSet memory commandSet, address to, uint256 amount) internal pure {
        unchecked {
            commandSet.commands[commandSet.at++] = ICreatorCommands.Command({method: ICreatorCommands.CreatorActions.SEND_ETH, args: abi.encode(to, amount)});
        }
    }
}