import gradio as gr
from datetime import datetime
import dateutil.relativedelta
from gradio.themes import Soft

# Custom theme for modern look
custom_theme = Soft(
    primary_hue="blue",
    secondary_hue="purple",
    radius_size="lg",
).set(
    body_background_fill="*linear-gradient(135deg, #1e3a8a, #6b21a8)",
    button_primary_background_fill="*linear-gradient(45deg, #3b82f6, #8b5cf6)",
    button_primary_background_fill_hover="*linear-gradient(45deg, #2563eb, #7c3aed)",
    block_background_fill="rgba(255, 255, 255, 0.1)",
    block_border_color="rgba(255, 255, 255, 0.2)",
    block_shadow="0 4px 6px rgba(0, 0, 0, 0.1)",
)

# Custom CSS for additional styling
custom_css = """
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap');

.gradio-container {
    font-family: 'Poppins', sans-serif !important;
}

h1 {
    color: white;
    text-align: center;
    font-size: 3rem;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.subtitle {
    color: #d1d5db;
    text-align: center;
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

#birthdate-input input {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 1.1rem;
    padding: 0.75rem;
    transition: border-color 0.3s ease;
}

#birthdate-input input:focus {
    border-color: #3b82f6;
    outline: none;
}

#submit-button {
    transition: transform 0.2s ease;
}

#submit-button:hover {
    transform: scale(1.05);
}

#result-output {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 1.5rem;
    color: white;
    font-size: 1.2rem;
    text-align: center;
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.footer {
    color: #9ca3af;
    text-align: center;
    margin-top: 2rem;
    font-size: 0.9rem;
}
"""

def calculate_age(birthdate):
    try:
        birth_date = datetime.strptime(birthdate, "%Y-%m-%d")
        today = datetime.now()
        if birth_date > today:
            return "🚫 Error: Birthdate cannot be in the future!"
        delta = dateutil.relativedelta.relativedelta(today, birth_date)
        years = delta.years
        months = delta.months
        days = delta.days
        return f"🎉 Your age is: **{years} years**, **{months} months**, and **{days} days**! 🎂"
    except ValueError:
        return "🚫 Error: Please enter a valid date in YYYY-MM-DD format (e.g., 1990-01-01)."

# Gradio interface
with gr.Blocks(theme=custom_theme, css=custom_css) as demo:
    gr.Markdown("# Age Calculator 🌟")
    gr.Markdown("### Discover your age in years, months, and days with style! ✨", elem_classes=["subtitle"])
    with gr.Row():
        with gr.Column(scale=1):
            birthdate = gr.Textbox(
                label="📅 Enter Your Birthdate (YYYY-MM-DD)",
                placeholder="e.g., 1990-01-01",
                elem_id="birthdate-input"
            )
            submit_btn = gr.Button("🔍 Calculate Age", variant="primary", elem_id="submit-button")
            output = gr.Markdown(label="Result", elem_id="result-output")
            submit_btn.click(
                fn=calculate_age,
                inputs=birthdate,
                outputs=output
            )
    gr.Markdown("---")
    gr.Markdown("Developed with ❤️ for a modern world", elem_classes=["footer"])

if __name__ == "__main__":
    demo.launch()