feat: initial changes based on teleswap contracts

contracts/common/libraries/TypedMemView.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity >=0.8.0 <0.8.4;
+pragma solidity 0.8.4;
 
 /** @author Summa (https://summa.one) */
 

contracts/common/relay/BitcoinRelayProxy.sol

@@ -1,14 +1,13 @@
 // SPDX-License-Identifier: MIT
-pragma solidity >=0.8.0 <0.8.4;
+pragma solidity 0.8.4;
 
-import "@openzeppelin/contracts/proxy/transparent/TransparentUpgradeableProxy.sol";
+import "@openzeppelin/contracts/proxy/ERC1967/ERC1967Proxy.sol";
 
-contract BitcoinRelayProxy is TransparentUpgradeableProxy {
+contract BitcoinRelayProxy is ERC1967Proxy {
 
     constructor(
         address _logic,
-        address admin_,
         bytes memory _data
-    ) payable TransparentUpgradeableProxy(_logic, admin_, _data) {}
+    ) payable ERC1967Proxy(_logic, _data) {}
 
 }

contracts/common/relay/interfaces/IBitcoinRelay.sol

@@ -1,178 +1,36 @@
 // SPDX-License-Identifier: MIT
-pragma solidity >=0.8.0 <0.8.4;
+pragma solidity 0.8.4;
 
 interface IBitcoinRelay {
-    // Structures
-
-    /// @notice Structure for recording block header
-    /// @param selfHash Hash of block header
-    /// @param parentHash Hash of parent header
-    /// @param merkleRoot Merkle root of transactions in the header
-    /// @param relayer Address of Relayer who submitted the block header
-    /// @param gasPrice Gas price of block header submission transaction
-    struct blockHeader {
-        bytes32 selfHash;
-        bytes32 parentHash;
-        bytes32 merkleRoot;
-        address relayer;
-        uint gasPrice;
-    }
-
     // Events
 
-    /// @notice Emits when a block header is added
-    /// @param height of submitted header
-    /// @param selfHash Hash of submitted header
-    /// @param parentHash of submitted header
-    /// @param relayer Address of Relayer who submitted the block header
-    event BlockAdded(
-        uint indexed height,
-        bytes32 selfHash,
-        bytes32 indexed parentHash,
-        address indexed relayer
-    );
-
-    /// @notice Emits when a block header gets finalized
-    /// @param height of the header
-    /// @param selfHash Hash of the header
-    /// @param parentHash of the header
-    /// @param relayer Address of Relayer who submitted the block header
-    /// @param rewardAmountTNT Amount of reward that the Relayer receives in target blockchain native token
-    /// @param rewardAmountTDT Amount of reward that the Relayer receives in TeleportDAO token
-    event BlockFinalized(
-        uint indexed height,
-        bytes32 selfHash,
-        bytes32 parentHash,
-        address indexed relayer,
-        uint rewardAmountTNT,
-        uint rewardAmountTDT
-    );
-
-    /// @notice Emits when inclusion of a tx is queried
-    /// @param txId of queried transaction
-    /// @param blockHeight of the block that includes the tx
-    /// @param paidFee Amount of fee that user paid to Relay
-    event NewQuery(
-        bytes32 txId,
-        uint blockHeight,
-        uint paidFee
-    );
-
-    event NewRewardAmountInTDT (
-        uint oldRewardAmountInTDT, 
-        uint newRewardAmountInTDT
-    );
-
     event NewFinalizationParameter (
-        uint oldFinalizationParameter, 
+        uint oldFinalizationParameter,
         uint newFinalizationParameter
     );
 
-    event NewRelayerPercentageFee (
-        uint oldRelayerPercentageFee, 
-        uint newRelayerPercentageFee
-    );
-
-    event NewTeleportDAOToken(
-        address oldTeleportDAOToken, 
-        address newTeleportDAOToken
-    );
-
-    event NewEpochLength(
-        uint oldEpochLength, 
-        uint newEpochLength
-    );
-
-    event NewBaseQueries(
-        uint oldBaseQueries, 
-        uint newBaseQueries
-    );
-
-    event NewSubmissionGasUsed(
-        uint oldSubmissionGasUsed, 
-        uint newSubmissionGasUsed
-    );
-
     // Read-only functions
 
-    function relayGenesisHash() external view returns (bytes32);
-
     function initialHeight() external view returns(uint);
 
     function lastSubmittedHeight() external view returns(uint);
 
     function finalizationParameter() external view returns(uint);
 
-    function TeleportDAOToken() external view returns(address);
-
-    function relayerPercentageFee() external view returns(uint);
-
-    function epochLength() external view returns(uint);
-
-    function lastEpochQueries() external view returns(uint);
-
-    function currentEpochQueries() external view returns(uint);
-
-    function baseQueries() external view returns(uint);
-
-    function submissionGasUsed() external view returns(uint);
-
-    function getBlockHeaderHash(uint height, uint index) external view returns(bytes32);
-
-    function getBlockHeaderFee(uint _height, uint _index) external view returns(uint);
-
-    function getNumberOfSubmittedHeaders(uint height) external view returns (uint);
-
-    function availableTDT() external view returns(uint);
-
-    function availableTNT() external view returns(uint);
-
-    function findHeight(bytes32 _hash) external view returns (uint256);
-
-    function rewardAmountInTDT() external view returns (uint);
+    function btcLightClient() external view returns(address);
 
     // State-changing functions
 
     function pauseRelay() external;
 
     function unpauseRelay() external;
 
-    function setRewardAmountInTDT(uint _rewardAmountInTDT) external;
-
     function setFinalizationParameter(uint _finalizationParameter) external;
 
-    function setRelayerPercentageFee(uint _relayerPercentageFee) external;
-
-    function setTeleportDAOToken(address _TeleportDAOToken) external;
-
-    function setEpochLength(uint _epochLength) external;
-
-    function setBaseQueries(uint _baseQueries) external;
-
-    function setSubmissionGasUsed(uint _submissionGasUsed) external;
-
     function checkTxProof(
         bytes32 txid,
         uint blockHeight,
         bytes calldata intermediateNodes,
         uint index
-    ) external payable returns (bool);
-
-    function getBlockHeaderHashContract(uint _height, uint _index) external payable returns (bytes32);
-
-    function addHeaders(bytes calldata _anchor, bytes calldata _headers) external returns (bool);
-
-    function addHeadersWithRetarget(
-        bytes calldata _oldPeriodStartHeader,
-        bytes calldata _oldPeriodEndHeader,
-        bytes calldata _headers
-    ) external returns (bool);
-
-    function ownerAddHeaders(bytes calldata _anchor, bytes calldata _headers) external returns (bool);
-
-    function ownerAddHeadersWithRetarget(
-        bytes calldata _oldPeriodStartHeader,
-        bytes calldata _oldPeriodEndHeader,
-        bytes calldata _headers
-    ) external returns (bool);
+    ) external view returns (bool);
 }

contracts/common/types/ScriptTypesEnum.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity >=0.8.0 <0.8.4;
+pragma solidity 0.8.4;
 
     enum ScriptTypes {
         P2PK, // 32 bytes