// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.27;

// modules
import {
    OwnableUpgradeable
} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import {
    LSP8IdentifiableDigitalAssetInitAbstract
} from "../../LSP8IdentifiableDigitalAssetInitAbstract.sol";
import {
    AccessControlExtendedInitAbstract
} from "../AccessControlExtended/AccessControlExtendedInitAbstract.sol";

// interfaces
import {ILSP8Mintable} from "./ILSP8Mintable.sol";

// errors
import {LSP8MintDisabled} from "./LSP8MintableErrors.sol";

/// @title LSP8MintableInitAbstract
/// @dev Abstract contract implementing a mintable LSP8 token extension, allowing the owner to mint any address granted the `MINTER_ROLE` to mint new tokens until minting is disabled.
/// Inherits from LSP8IdentifiableDigitalAssetInitAbstract to provide core token functionality.
abstract contract LSP8MintableInitAbstract is
    ILSP8Mintable,
    LSP8IdentifiableDigitalAssetInitAbstract,
    AccessControlExtendedInitAbstract
{
    /// @notice Indicates whether minting is currently enabled.
    bool public isMintable;

    /// @dev keccak256("MINTER_ROLE")
    bytes32 public constant MINTER_ROLE =
        0x9f2df0fed2c77648de5860a4cc508cd0818c85b8b8a1ab4ceeef8d981c8956a6;

    /// @notice Initializes the LSP8Mintable contract with base token params and minting status.
    /// @dev Initializes the LSP8IdentifiableDigitalAsset base and sets the initial minting status.
    /// @param name_ The name of the token.
    /// @param symbol_ The symbol of the token.
    /// @param newOwner_ The owner of the contract.
    /// @param lsp4TokenType_ The token type (see LSP4).
    /// @param lsp8TokenIdFormat_ The format of tokenIds (= NFTs) that this contract will create.
    /// @param mintable_ True to enable minting after deployment, false to disable it forever.
    /// @custom:info If `mintable_` is set to `true` then it can be disabled using `disableMinting()` function later on.
    function __LSP8Mintable_init(
        string memory name_,
        string memory symbol_,
        address newOwner_,
        uint256 lsp4TokenType_,
        uint256 lsp8TokenIdFormat_,
        bool mintable_
    ) internal virtual onlyInitializing {
        LSP8IdentifiableDigitalAssetInitAbstract._initialize(
            name_,
            symbol_,
            newOwner_,
            lsp4TokenType_,
            lsp8TokenIdFormat_
        );
        __AccessControlExtended_init();
        __LSP8Mintable_init_unchained(mintable_);
    }

    /// @notice Unchained initializer for the minting status.
    /// @dev Sets the initial minting status.
    /// @param mintable_ True to enable minting after deployment, false to disable it forever.
    function __LSP8Mintable_init_unchained(
        bool mintable_
    ) internal virtual onlyInitializing {
        isMintable = mintable_;
        emit MintingStatusChanged({enabled: mintable_});

        if (mintable_) {
            _grantRole(MINTER_ROLE, owner());
        }
    }

    /// @inheritdoc ILSP8Mintable
    /// @custom:warning Once this function is called, any address holding the `MINTER_ROLE` will be inoperable.
    /// @custom:info The list of addresses holding the `MINTER_ROLE` remains populated after the minting feature is switched off.
    function disableMinting() public virtual override onlyOwner {
        require(isMintable, LSP8MintDisabled());
        isMintable = false;
        emit MintingStatusChanged({enabled: false});
    }

    /// @inheritdoc ILSP8Mintable
    function mint(
        address to,
        bytes32 tokenId,
        bool force,
        bytes memory data
    ) public virtual override onlyRole(MINTER_ROLE) {
        _mint(to, tokenId, force, data);
    }

    function supportsInterface(
        bytes4 interfaceId
    )
        public
        view
        virtual
        override(
            AccessControlExtendedInitAbstract,
            LSP8IdentifiableDigitalAssetInitAbstract
        )
        returns (bool)
    {
        return
            AccessControlExtendedInitAbstract.supportsInterface(interfaceId) ||
            LSP8IdentifiableDigitalAssetInitAbstract.supportsInterface(
                interfaceId
            );
    }

    /// @notice Internal function to mint tokens, overridden to enforce minting status.
    /// @dev Checks if minting is enabled, reverting with LSP8MintDisabled if not. Calls the parent _mint function from LSP8IdentifiableDigitalAssetInitAbstract.
    /// @param to The address to receive the minted token.
    /// @param tokenId The unique identifier for the token to mint.
    /// @param force When true, allows minting to any address; when false, requires `to` to support LSP1 UniversalReceiver.
    /// @param data Additional data included in the Transfer event and sent to `to`'s UniversalReceiver hook, if applicable.
    function _mint(
        address to,
        bytes32 tokenId,
        bool force,
        bytes memory data
    ) internal virtual override {
        require(isMintable, LSP8MintDisabled());

        super._mint(to, tokenId, force, data);
    }

    function _transferOwnership(
        address newOwner
    )
        internal
        virtual
        override(AccessControlExtendedInitAbstract, OwnableUpgradeable)
    {
        // restore default admin hierarchy so a previously-installed custom admin
        // cannot grant MINTER_ROLE to new accounts post-transfer
        _setRoleAdmin(MINTER_ROLE, DEFAULT_ADMIN_ROLE);
        super._transferOwnership(newOwner);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     *
     * @custom:info The size of the `__gap` array is calculated so that the amount of storage used by the contract
     * always adds up to the same number (in this case 50 storage slots).
     */
    uint256[49] private __gap;
}