Create PiCoinValueSetter.sol

blockchain_integration/pi_network/features/pi-coin-value-setter/PiCoinValueSetter.sol

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+pragma solidity ^0.8.0;
+
+contract PiCoinValueSetter {
+    // Set the target value of Pi Coin
+    uint256 public targetValue = 314159000000000000000; // $314.159
+
+    // Set the mainnet launch timestamp
+    uint256 public mainnetLaunchTimestamp;
+
+    // Event emitted when the mainnet is launched
+    event MainnetLaunched();
+
+    // Function to set the value of Pi Coin when the mainnet is launched
+    function setPiCoinValue() public {
+        // Check if the mainnet has been launched
+        require(mainnetLaunchTimestamp != 0, "Mainnet has not been launched");
+
+        // Set the value of Pi Coin to the target value
+        PiCoin piCoin = PiCoin(address);
+        piCoin.setValue(targetValue);
+
+        // Emit the MainnetLaunched event
+        emit MainnetLaunched();
+    }
+
+    // Function to set the mainnet launch timestamp
+    function setMainnetLaunchTimestamp(uint256 _timestamp) public {
+        mainnetLaunchTimestamp = _timestamp;
+    }
+}