// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

import './Controllable.sol';
import './Validator.sol';

/**
 * @title ControllableWithApi
 */

contract ControllableWithApi is Controllable, Validator {
  bytes32 private _API_ROLE;

  function __ControllableWithApi_init(
    string memory name,
    string memory version,
    address apiAddress
  ) internal onlyInitializing {
    __ControllableWithApi_init_unchained(name, version, apiAddress);
  }

  function __ControllableWithApi_init_unchained(
    string memory name,
    string memory version,
    address apiAddress
  ) internal onlyInitializing {
    __Controllable_init();
    __Validator_init(name, version);
    _grantRole(_API_ROLE, apiAddress);
  }

  /**
    * @dev Only allow access from the API_ROLE
    */
  modifier onlyApi() {
    require(isApi(_msgSender()), 'ControllableWithApi: Restricted to API');
    _;
  }

  /**
    * @dev Verify account has API_ROLE
    * @param account - The account address to verify
    */
  function isApi(address account) public view returns (bool) {
    return hasRole(_API_ROLE, account);
  }

  /**
    * @dev Validate action by sig
    * @param account - Suposed signer
    * @param action - Action to perform
    * @param details - Extra details of the action (to explain the signature)
    * @param dbRef - Database reference
    * @param signatureExpiry - Signatura expiration timestamp
    * @param v - Split signature.v
    * @param r - Split signature.r
    * @param s - Split signature.s
    */
  function validateAction(
    address account,
    string calldata action,
    string calldata details,
    string calldata dbRef,
    uint256 signatureExpiry,
    uint8 v,
    bytes32 r,
    bytes32 s
  ) external view virtual onlyApi returns (bool success) {
    // Blockchain
    if (_validateString(action, _ACTION_ADD_BLOCKCHAIN)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Add blockchain
    else if (_validateString(action, _ACTION_VALIDATE_BLOCKCHAIN) && isAdmin(account)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Validate blockchain
    else if (_validateString(action, _ACTION_UPDATE_BLOCKCHAIN) && isAdmin(account)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Update blockchain
    else if (_validateString(action, _ACTION_DELETE_BLOCKCHAIN) && isAdmin(account)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Delete blockchain
    // RPC
    else if (_validateString(action, _ACTION_ADD_RPC)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Add blockchain
    else if (_validateString(action, _ACTION_VALIDATE_RPC) && isAdmin(account)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Validate RPC
    else if (_validateString(action, _ACTION_UPDATE_RPC) && isAdmin(account)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Update RPC
    else if (_validateString(action, _ACTION_DELETE_RPC) && isAdmin(account)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Delete RPC
    // Faucet
    else if (_validateString(action, _ACTION_ADD_FAUCET)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Add blockchain
    else if (_validateString(action, _ACTION_VALIDATE_FAUCET) && isAdmin(account)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Validate Faucet
    else if (_validateString(action, _ACTION_UPDATE_FAUCET) && isAdmin(account)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Update Faucet
    else if (_validateString(action, _ACTION_DELETE_FAUCET) && isAdmin(account)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Delete Faucet
    // Token
    else if (_validateString(action, _ACTION_ADD_TOKEN)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Add blockchain
    else if (_validateString(action, _ACTION_VALIDATE_TOKEN) && isAdmin(account)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Validate Token
    else if (_validateString(action, _ACTION_UPDATE_TOKEN) && isAdmin(account)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Update Token
    else if (_validateString(action, _ACTION_DELETE_TOKEN) && isAdmin(account)) return _validateAction(account, action, details, dbRef, signatureExpiry, v, r, s); // Delete Token
    else return false;
  }

  uint256[50] private __gap;
}