class DataScientist:
    """
    ✨ Class: DataScientist ✨

    A class representing a brief introduction about me as a data scientist.
    """

    def __init__(self):
        self.name: str = "Thiago Roldan"
        self.languages: list[str] = [
            "Python", "R", "SQL"
        ]
        self.tools: list[str] = [
            "JetBrains Tools", "Jupyter Notebook", "Insomnia"
        ]
        self.specialties: list[str] = [
            "Data Science", "Machine Learning", "Software Engineering"
        ]
        self.technologies: dict[str, list[str]] = {
            "Back-End": [
                "Flask 🧪", "Django 🕊️", "FastAPI ⚡"
            ],
            "DevOps": [
                "AWS ☁️", "Docker 🐳", "Kubernetes ☸️"
            ],
            "Databases": [
                "MySQL 🐬", "PostgreSQL 🐘", "DynamoDB 🛠️", "MongoDB 🍃"
            ],
            "Machine Learning": [
                "scikit-learn 🤖", "TensorFlow 🔗", "PyTorch 🔥", "XGBoost 🌟", "Keras 🧠"
            ],
            "Data Viz": [
                "Pandas 🐼", "NumPy 🔢", "Matplotlib 📊", "Seaborn 🌊", "Plotly 📈"
            ],
        }

        self.current_focus: str = (
            "Improving my skills in Data Science "
            "and Machine Learning."
        )
        self.fun_fact: str = (
            "I love solving puzzles and creating challenges—"
            "that's how I keep learning! 💡"
        )

    def get_technologies_as_string(self) -> str:
        """
        Converts the technologies dictionary into a formatted string.
        """
        return "\n".join(
            f"  {category}: {', '.join(techs)}"
            for category, techs in self.technologies.items()
        )

    def __str__(self) -> str:
        """
        Returns a string representation of the DataScientist instance.
        """
        tech_lines = self.get_technologies_as_string()
        return (
            f"👋 Hi, I'm {self.name}!\n"
            f"🌟 Current Focus: {self.current_focus}\n"
            f"🎯 Specialties: {', '.join(self.specialties)}\n\n"
            f"💻 Programming Languages: {', '.join(self.languages)}\n"
            f"🛠️ Tools: {', '.join(self.tools)}\n\n"
            f"🔧 Technologies I work with:\n{tech_lines}\n\n"
            f"🎉 Fun Fact: {self.fun_fact}\n\n"
        )

if __name__ == "__main__":
    me = DataScientist()
    print(me)