CoverLetter.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.25;

/// @title CoverLEtter - A Solidity-encoded developer introduction and motivation letter
contract CoverLetter {
    address public immutable author;
    string public constant GITHUB = "https://github.com/diego-g";
    string public constant ENS = "diego-g.eth";

    enum Status { Drafted, Published }
    Status public profileStatus;

    event ProfilePublished(address indexed author);

    error AlreadyPublished();

    constructor() {
        author = msg.sender;
        profileStatus = Status.Drafted;
    }

    function publishProfile() external {
        if (msg.sender != author) revert AlreadyPublished();
        profileStatus = Status.Published;
        emit ProfilePublished(author);
    }

    function getSummary() external pure returns (string memory) {
        return string.concat(
            "Hi, I'm Diego.\n\n",
            "I'm a smart contract engineer with a deep interest in the Ethereum ecosystem, rollups, and protocol design.\n",
            "I work primarily in Solidity, Foundry, and enjoy writing gas-efficient, secure, and auditable code.\n\n",
            "My recent focus includes crosschain interop, L2 architecture, and developer tooling.\n\n",
            "Open-source, rigor, and clean design are core to my philosophy.\n\n",
            "GitHub: ", GITHUB, "\n",
            "ENS: ", ENS, "\n"
        );
    }

    function values() external pure returns (string memory) {
        return "Security, simplicity, composability, and open-source collaboration.";
    }

    function favoriteOpcode() external pure returns (bytes1) {
        return 0x42; // TIMESTAMP — or 'The Answer to Life, the Universe, and Everything'
    }
}