feat(contracts): supporting community specific scores

contracts/GitcoinPassportDecoder.sol

@@ -456,6 +456,30 @@ contract GitcoinPassportDecoder is
     return score;
   }
 
+  /**
+   * @dev Retrieves the user's Score attestation for a given community via the GitcoinResolver and returns it as a 4 digit number
+   * @param user The ETH address of the recipient
+   */
+  function getScore(
+    uint32 communityId,
+    address user
+  ) public view returns (uint256) {
+    IGitcoinResolver.CachedScore memory cachedScore = gitcoinResolver
+      .getCachedScore(communityId, user);
+
+    if (cachedScore.time != 0) {
+      // Check for expiration time
+      if (_isCachedScoreExpired(cachedScore)) {
+        revert AttestationExpired(cachedScore.time);
+      }
+
+      // Return the score value
+      return cachedScore.score;
+    } else {
+      revert AttestationNotFound();
+    }
+  }
+
   /**
    * @dev Determines if a user is a human based on their score being above a certain threshold and valid within the max score age
    * @param user The ETH address of the recipient

contracts/GitcoinResolver.sol

@@ -51,6 +51,11 @@ contract GitcoinResolver is
   // Mapping of active passport score schemas - used when storing scores to state
   bytes32 public scoreSchema;
 
+  uint32 public defaultCommunityId;
+
+  // Mapping of communityId => address => score
+  mapping(uint32 => mapping(address => CachedScore)) public communityScores;
+
   /**
    * @dev Creates a new resolver.
    * @notice Initializer function responsible for setting up the contract's initial state.
@@ -96,6 +101,10 @@ contract GitcoinResolver is
     _unpause();
   }
 
+  function setDefaultCommunityId(uint32 communityId) external onlyOwner {
+    defaultCommunityId = communityId;
+  }
+
   /**
    * @dev Set supported score schemas.
    * @param _schema The score schema uid
@@ -133,11 +142,11 @@ contract GitcoinResolver is
       revert InvalidAttester();
     }
 
-    userAttestations[attestation.recipient][attestation.schema] = attestation
-      .uid;
-
     if (scoreSchema == attestation.schema) {
       _setScore(attestation);
+    } else {
+      userAttestations[attestation.recipient][attestation.schema] = attestation
+        .uid;
     }
     return true;
   }
@@ -148,7 +157,7 @@ contract GitcoinResolver is
    */
   function _setScore(Attestation calldata attestation) private {
     // Decode the score attestion output
-    (uint256 score, , uint8 digits) = abi.decode(
+    (uint256 score, uint32 communityId, uint8 digits) = abi.decode(
       attestation.data,
       (uint256, uint32, uint8)
     );
@@ -159,33 +168,59 @@ contract GitcoinResolver is
       score *= 10 ** (4 - digits);
     }
 
-    scores[attestation.recipient] = CachedScore(
+    CachedScore memory cachedScore = CachedScore(
       uint32(score),
       attestation.time,
       attestation.expirationTime
     );
+
+    if (communityId == defaultCommunityId || defaultCommunityId == 0) {
+      scores[attestation.recipient] = cachedScore;
+      userAttestations[attestation.recipient][attestation.schema] = attestation
+        .uid;
+    } else {
+      communityScores[communityId][attestation.recipient] = cachedScore;
+    }
   }
 
   /**
    * @dev Removes the score data from the state for the specified recipient.
-   * @param recipient The recipient of the score which needs to be removed.
+   * @param attestation The attestation to be removed.
    */
-  function _removeScore(address recipient) private {
-    delete scores[recipient];
+  function _removeScore(Attestation calldata attestation) private {
+    // Decode the score attestion output
+    (, uint32 communityId, ) = abi.decode(
+      attestation.data,
+      (uint256, uint32, uint8)
+    );
+
+    if (communityId == defaultCommunityId || defaultCommunityId == 0) {
+      delete scores[attestation.recipient];
+      delete userAttestations[attestation.recipient][attestation.schema];
+    } else {
+      delete communityScores[communityId][attestation.recipient];
+    }
   }
 
-  /**
-   *
-   * @param user The ETH address of the recipient
-   * @return The `CachedScore` for the given ETH address.
-   * A non-zero value in the `time` (issuance time) indicates that a valid score has been retreived.
-   */
+  /// @inheritdoc IGitcoinResolver
   function getCachedScore(
     address user
   ) external view returns (CachedScore memory) {
     return scores[user];
   }
 
+  /// @inheritdoc IGitcoinResolver
+  function getCachedScore(
+    uint32 communityId,
+    address user
+  ) external view returns (CachedScore memory) {
+    if (communityId == defaultCommunityId || defaultCommunityId == 0) {
+      return scores[user];
+    } else {
+      return communityScores[communityId][user];
+    }
+  }
+
   /**
    * @dev Processes multiple attestations and verifies whether they are valid.
    * @param attestations The new attestations.
@@ -244,18 +279,16 @@ contract GitcoinResolver is
    * @return true indicating if the pre-revocation have been performed and the revocation process should continue
    */
   function _revoke(Attestation calldata attestation) internal returns (bool) {
-    userAttestations[attestation.recipient][attestation.schema] = 0;
-    _removeScore(attestation.recipient);
+    if (attestation.schema == scoreSchema) {
+      _removeScore(attestation);
+    } else {
+      userAttestations[attestation.recipient][attestation.schema] = 0;
+    }
 
     return true;
   }
 
-  /**
-   *
-   * @param user The ETH address of the recipient
-   * @param schema THE UID of the chema
-   * @return The attestation UID or 0x0 if not found
-   */
+  /// @inheritdoc IGitcoinResolver
   function getUserAttestation(
     address user,
     bytes32 schema

contracts/IGitcoinPassportDecoder.sol

@@ -23,5 +23,7 @@ interface IGitcoinPassportDecoder {
 
   function getScore(address user) external view returns (uint256);
 
+  function getScore(uint32 communityId, address user) external view returns (uint256);
+
   function isHuman(address user) external view returns (bool);
 }

contracts/IGitcoinResolver.sol

@@ -14,25 +14,31 @@ interface IGitcoinResolver {
     uint64 expirationTime; // This makes sense because we want to make sure the stamp is not expired, and also do not want to load the attestation
   }
 
-  /**
-   *
-   * @param user The ETH address of the recipient
-   * @param schema THE UID of the chema
-   * @return The attestation UID or 0x0 if not found
-   */
+  /// @param user The ETH address of the recipient
+  /// @param schema THE UID of the chema
+  /// @return The attestation UID or 0x0 if not found
+  /// @dev Returns the latest user attestation for a given schema
+  /// @dev Not supported for community-specific attestations
   function getUserAttestation(
     address user,
     bytes32 schema
   ) external view returns (bytes32);
 
-  /**
-   *
-   * @param user The ETH address of the recipient
-   * @return The `CachedScore` for the given ETH address.
-   * A non-zero value in the `issuanceDate` indicates that a valid score has been retreived.
-   */
+  /// @notice Get the cached score for a user in a the default community
+  /// @param user The ETH address of the recipient
+  /// @return The `CachedScore` for the given ETH address.
+  /// @dev A non-zero value in the `issuanceDate` indicates that a valid score has been retreived.
+  function getCachedScore(
+    address user
+  ) external view returns (CachedScore memory);
 
+  /// @notice Get the cached score for a user in a specific community
+  /// @param communityId The ID of the community
+  /// @param user The ETH address of the recipient
+  /// @return The `CachedScore` for the given ETH address.
+  /// @dev A non-zero value in the `issuanceDate` indicates that a valid score has been retreived.
   function getCachedScore(
+    uint32 communityId,
     address user
   ) external view returns (CachedScore memory);
 }

contracts/mocks/GitcoinResolverUpdate.sol

@@ -1,3 +1,4 @@
+
 // SPDX-License-Identifier: GPL
 pragma solidity ^0.8.9;
 
@@ -31,6 +32,8 @@ contract GitcoinResolverUpdate is
   error NotAllowlisted();
   error InvalidAttester();
 
+  event ScoreSchemaSet(bytes32 schema);
+
   // Mapping of addresses to schemas to an attestation UID
   mapping(address => mapping(bytes32 => bytes32)) public userAttestations;
 
@@ -49,7 +52,12 @@ contract GitcoinResolverUpdate is
   // Mapping of active passport score schemas - used when storing scores to state
   bytes32 public scoreSchema;
 
-  uint256 public aNewPublicVariable;
+  uint32 public defaultCommunityId;
+
+  // Mapping of communityId => address => score
+  mapping(uint32 => mapping(address => CachedScore)) public communityScores;
+
+  uint256 aNewVariable;
 
   /**
    * @dev Creates a new resolver.
@@ -96,6 +104,19 @@ contract GitcoinResolverUpdate is
     _unpause();
   }
 
+  function setDefaultCommunityId(uint32 communityId) external onlyOwner {
+    defaultCommunityId = communityId;
+  }
+
+  /**
+   * @dev Set supported score schemas.
+   * @param _schema The score schema uid
+   */
+  function setScoreSchema(bytes32 _schema) external onlyOwner {
+    scoreSchema = _schema;
+    emit ScoreSchemaSet(_schema);
+  }
+
   // solhint-disable-next-line no-empty-blocks
   function _authorizeUpgrade(address) internal override onlyOwner {}
 
@@ -124,9 +145,12 @@ contract GitcoinResolverUpdate is
       revert InvalidAttester();
     }
 
-    userAttestations[attestation.recipient][attestation.schema] = attestation
-      .uid;
-
+    if (scoreSchema == attestation.schema) {
+      _setScore(attestation);
+    } else {
+      userAttestations[attestation.recipient][attestation.schema] = attestation
+        .uid;
+    }
     return true;
   }
 
@@ -136,7 +160,7 @@ contract GitcoinResolverUpdate is
    */
   function _setScore(Attestation calldata attestation) private {
     // Decode the score attestion output
-    (uint256 score, , uint8 digits) = abi.decode(
+    (uint256 score, uint32 communityId, uint8 digits) = abi.decode(
       attestation.data,
       (uint256, uint32, uint8)
     );
@@ -147,22 +171,59 @@ contract GitcoinResolverUpdate is
       score *= 10 ** (4 - digits);
     }
 
-    scores[attestation.recipient] = CachedScore(
+    CachedScore memory cachedScore = CachedScore(
       uint32(score),
       attestation.time,
       attestation.expirationTime
     );
+
+    if (communityId == defaultCommunityId) {
+      scores[attestation.recipient] = cachedScore;
+      userAttestations[attestation.recipient][attestation.schema] = attestation
+        .uid;
+    } else {
+      communityScores[communityId][attestation.recipient] = cachedScore;
+    }
   }
 
   /**
-   * @dev Returns the cached score for a given address.
+   * @dev Removes the score data from the state for the specified recipient.
+   * @param attestation The attestation to be removed.
    */
+  function _removeScore(Attestation calldata attestation) private {
+    // Decode the score attestion output
+    (, uint32 communityId, ) = abi.decode(
+      attestation.data,
+      (uint256, uint32, uint8)
+    );
+
+    if (communityId == defaultCommunityId) {
+      delete scores[attestation.recipient];
+      delete userAttestations[attestation.recipient][attestation.schema];
+    } else {
+      delete communityScores[communityId][attestation.recipient];
+    }
+  }
+
+  /// @inheritdoc IGitcoinResolver
   function getCachedScore(
     address user
   ) external view returns (CachedScore memory) {
     return scores[user];
   }
 
+  /// @inheritdoc IGitcoinResolver
+  function getCachedScore(
+    uint32 communityId,
+    address user
+  ) external view returns (CachedScore memory) {
+    if (communityId == defaultCommunityId) {
+      return scores[user];
+    } else {
+      return communityScores[communityId][user];
+    }
+  }
+
   /**
    * @dev Processes multiple attestations and verifies whether they are valid.
    * @param attestations The new attestations.
@@ -215,12 +276,22 @@ contract GitcoinResolverUpdate is
     return true;
   }
 
+  /**
+   * @dev Processes an revocation request
+   * @param attestation The new attestation request.
+   * @return true indicating if the pre-revocation have been performed and the revocation process should continue
+   */
   function _revoke(Attestation calldata attestation) internal returns (bool) {
-    userAttestations[attestation.recipient][attestation.schema] = 0;
+    if (attestation.schema == scoreSchema) {
+      _removeScore(attestation);
+    } else {
+      userAttestations[attestation.recipient][attestation.schema] = 0;
+    }
 
     return true;
   }
 
+  /// @inheritdoc IGitcoinResolver
   function getUserAttestation(
     address user,
     bytes32 schema

contracts/mocks/MockResolver.sol

@@ -63,6 +63,13 @@ contract MockResolver is IGitcoinResolver, ISchemaResolver {
     return scores[user];
   }
 
+  function getCachedScore(
+    uint32 communityId,
+    address user
+  ) external view returns (CachedScore memory) {
+    return scores[user];
+  }
+
   /**
    * @dev Processes multiple attestations and verifies whether they are valid.
    * @param attestations The new attestations.