import gradio as gr

def detect_lie(text):
    if not text.strip():
        return "⚠️ Please enter a statement."

    text_lower = text.lower()
    words = text.split()

    result = "✅ Truthful"
    confidence = 90
    explanation = "The statement appears clear and neutral."
    color = "#22c55e"

    if len(words) > 25:
        result = "⚠️ Suspicious"
        confidence = 65
        explanation = "Too many details may indicate over-explanation."
        color = "#f59e0b"

    elif "honestly" in text_lower or "trust me" in text_lower:
        result = "⚠️ Suspicious"
        confidence = 70
        explanation = "Over-justification phrases detected."
        color = "#f59e0b"

    elif any(word in text_lower for word in ["never", "no", "not", "nothing"]):
        result = "❌ Likely Lie"
        confidence = 80
        explanation = "Negative wording may indicate denial or deception."
        color = "#ef4444"

    return f"""
    <div style="background:{color}; padding:15px; border-radius:10px; color:white;">
        <h2>{result}</h2>
        <p><b>Confidence:</b> {confidence}%</p>
        <p><b>Explanation:</b> {explanation}</p>
    </div>
    """

demo = gr.Interface(
    fn=detect_lie,
    inputs=gr.Textbox(lines=4, placeholder="Enter your statement..."),
    outputs=gr.HTML(),
    title="🕵️ AI Lie Detector",
    description="Detect whether a statement is truthful, suspicious, or a lie."
)

if __name__ == "__main__":
    demo.launch(server_name="0.0.0.0", server_port=7860)