Adapted interface

packages/contracts/src/governance/MainVotingPlugin.sol

@@ -5,7 +5,7 @@ import {IDAO, PluginUUPSUpgradeable} from "@aragon/osx/core/plugin/PluginUUPSUpg
 import {SafeCastUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/math/SafeCastUpgradeable.sol";
 import {PermissionManager} from "@aragon/osx/core/permission/PermissionManager.sol";
 import {RATIO_BASE, _applyRatioCeiled} from "@aragon/osx/plugins/utils/Ratio.sol";
-import {IMajorityVoting} from "@aragon/osx/plugins/governance/majority-voting/IMajorityVoting.sol";
+import {IMajorityVoting} from "./base/IMajorityVoting.sol";
 import {MajorityVotingBase} from "./base/MajorityVotingBase.sol";
 import {IMembers} from "../base/IMembers.sol";
 import {IEditors} from "../base/IEditors.sol";

packages/contracts/src/governance/base/IMajorityVoting.sol

@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+pragma solidity ^0.8.8;
+
+import {IDAO} from "@aragon/osx/core/dao/IDAO.sol";
+
+/// @title IMajorityVoting
+/// @author Aragon Association - 2022-2023
+/// @notice The interface of majority voting plugin.
+interface IMajorityVoting {
+    /// @notice Vote options that a voter can chose from.
+    /// @param None The default option state of a voter indicating the absence from the vote. This option neither influences support nor participation.
+    /// @param Abstain This option does not influence the support but counts towards participation.
+    /// @param Yes This option increases the support and counts towards participation.
+    /// @param No This option decreases the support and counts towards participation.
+    enum VoteOption {
+        None,
+        Abstain,
+        Yes,
+        No
+    }
+
+    /// @notice Emitted when a vote is cast by a voter.
+    /// @param proposalId The ID of the proposal.
+    /// @param voter The voter casting the vote.
+    /// @param voteOption The casted vote option.
+    /// @param votingPower The voting power behind this vote.
+    event VoteCast(
+        uint256 indexed proposalId,
+        address indexed voter,
+        VoteOption voteOption,
+        uint256 votingPower
+    );
+
+    /// @notice Returns the support threshold parameter stored in the voting settings.
+    /// @return The support threshold parameter.
+    function supportThreshold() external view returns (uint32);
+
+    /// @notice Checks if the support value defined as $$\texttt{support} = \frac{N_\text{yes}}{N_\text{yes}+N_\text{no}}$$ for a proposal vote is greater than the support threshold.
+    /// @param _proposalId The ID of the proposal.
+    /// @return Returns `true` if the  support is greater than the support threshold and `false` otherwise.
+    function isSupportThresholdReached(uint256 _proposalId) external view returns (bool);
+
+    /// @notice Checks if the worst-case support value defined as $$\texttt{worstCaseSupport} = \frac{N_\text{yes}}{ N_\text{total}-N_\text{abstain}}$$ for a proposal vote is greater than the support threshold.
+    /// @param _proposalId The ID of the proposal.
+    /// @return Returns `true` if the worst-case support is greater than the support threshold and `false` otherwise.
+    function isSupportThresholdReachedEarly(uint256 _proposalId) external view returns (bool);
+
+    /// @notice Checks if the participation value defined as $$\texttt{participation} = \frac{N_\text{yes}+N_\text{no}+N_\text{abstain}}{N_\text{total}}$$ for a proposal vote is greater or equal than the minimum participation value.
+    /// @param _proposalId The ID of the proposal.
+    /// @return Returns `true` if the participation is greater than the minimum participation and `false` otherwise.
+    function isMinParticipationReached(uint256 _proposalId) external view returns (bool);
+
+    /// @notice Checks if an account can participate on a proposal vote. This can be because the vote
+    /// - has not started,
+    /// - has ended,
+    /// - was executed, or
+    /// - the voter doesn't have voting powers.
+    /// @param _proposalId The proposal Id.
+    /// @param _account The account address to be checked.
+    /// @param  _voteOption Whether the voter abstains, supports or opposes the proposal.
+    /// @return Returns true if the account is allowed to vote.
+    /// @dev The function assumes the queried proposal exists.
+    function canVote(
+        uint256 _proposalId,
+        address _account,
+        VoteOption _voteOption
+    ) external view returns (bool);
+
+    /// @notice Checks if a proposal can be executed.
+    /// @param _proposalId The ID of the proposal to be checked.
+    /// @return True if the proposal can be executed, false otherwise.
+    function canExecute(uint256 _proposalId) external view returns (bool);
+
+    /// @notice Votes for a vote option and, optionally, executes the proposal.
+    /// @dev `_voteOption`, 1 -> abstain, 2 -> yes, 3 -> no
+    /// @param _proposalId The ID of the proposal.
+    /// @param _voteOption The chosen vote option.
+    /// @param _tryEarlyExecution If `true`,  early execution is tried after the vote cast. The call does not revert if early execution is not possible.
+    function vote(uint256 _proposalId, VoteOption _voteOption, bool _tryEarlyExecution) external;
+
+    /// @notice Executes a proposal.
+    /// @param _proposalId The ID of the proposal to be executed.
+    function execute(uint256 _proposalId) external;
+
+    /// @notice Returns whether the account has voted for the proposal.  Note, that this does not check if the account has voting power.
+    /// @param _proposalId The ID of the proposal.
+    /// @param _account The account address to be checked.
+    /// @return The vote option cast by a voter for a certain proposal.
+    function getVoteOption(
+        uint256 _proposalId,
+        address _account
+    ) external view returns (VoteOption);
+}

packages/contracts/src/governance/base/MajorityVotingBase.sol

@@ -11,7 +11,7 @@ import {ProposalUpgradeable} from "@aragon/osx/core/plugin/proposal/ProposalUpgr
 import {PluginUUPSUpgradeable} from "@aragon/osx/core/plugin/PluginUUPSUpgradeable.sol";
 import {IDAO} from "@aragon/osx/core/dao/IDAO.sol";
 import {RATIO_BASE, RatioOutOfBounds} from "@aragon/osx/plugins/utils/Ratio.sol";
-import {IMajorityVoting} from "@aragon/osx/plugins/governance/majority-voting/IMajorityVoting.sol";
+import {IMajorityVoting} from "./IMajorityVoting.sol";
 
 /// @title MajorityVotingBase
 /// @author Aragon X - 2022-2023