import streamlit as st
import requests
import os

# Set your Groq API key (use Hugging Face secrets for deployment)
GROQ_API_KEY = os.getenv("GROQ_API_KEY")
GROQ_API_URL = "https://api.groq.com/openai/v1/chat/completions"

st.set_page_config(page_title="EngGloss - Engineering Term Explainer", page_icon="📘")
st.title("📘 EngGloss: Engineering Term Explainer")
st.write("Enter a technical term to get a beginner-friendly explanation.")

term = st.text_input("🔍 Enter an engineering term:", placeholder="e.g., Bernoulli's Principle")

if st.button("Explain"):
    if not term.strip():
        st.warning("Please enter a term.")
    else:
        with st.spinner("Generating explanation..."):
            prompt = f"""
You are EngGloss, an expert engineering tutor who explains technical concepts in a beginner-friendly and structured way.

Your task is to explain a single engineering term to a student or non-expert. Follow this exact format and keep the response concise and clear:

🔍 Term: {term}

📘 Simple Explanation: Provide a brief explanation using plain language. Avoid jargon or complex phrases. Aim for clarity and simplicity.

🧠 Real-World Analogy: Use a relatable analogy from everyday life to help illustrate the concept intuitively.

📐 Typical Formula: If the term is associated with a formula, show the most common version. Briefly explain what each variable means. If no formula exists, say: "There is no standard formula associated with this term."

🏗️ Engineering Applications: List 2–3 branches of engineering where this term is often applied (e.g., civil, mechanical, electrical). Use bullet points.

Respond in markdown format. Keep the tone helpful and clear, like you’re explaining to a college freshman.
"""
            headers = {
                "Authorization": f"Bearer {GROQ_API_KEY}",
                "Content-Type": "application/json"
            }

            data = {
                "model": "mixtral-8x7b-32768",
                "messages": [
                    {"role": "system", "content": "You are EngGloss, an expert engineering tutor."},
                    {"role": "user", "content": prompt}
                ],
                "temperature": 0.7
            }

            response = requests.post(GROQ_API_URL, headers=headers, json=data)

            if response.status_code == 200:
                result = response.json()
                explanation = result["choices"][0]["message"]["content"]
                st.markdown(explanation)
            else:
                st.error("Failed to get a response from Groq API.")
                st.code(response.text)