import requests
from bs4 import BeautifulSoup
import streamlit as st

# CSS for UI
def load_css():
    st.markdown("""
    <style>
    body {
        font-family: Arial, sans-serif;
        background-color: #f8f9fa;
    }
    .search-bar {
        width: 50%;
        margin: 20px auto;
        display: flex;
        align-items: center;
        border: 1px solid #dfe1e5;
        border-radius: 24px;
        padding: 10px;
        background-color: #fff;
        box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.1);
    }
    .search-bar input {
        flex: 1;
        border: none;
        outline: none;
        font-size: 16px;
        padding: 5px;
    }
    .search-bar button {
        background: none;
        border: none;
        color: #4285f4;
        font-size: 18px;
        cursor: pointer;
    }
    .search-result {
        margin: 20px auto;
        width: 80%;
        padding: 15px;
        border: 1px solid #dfe1e5;
        border-radius: 8px;
        background-color: #fff;
        box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.1);
    }
    .search-result h3 {
        margin: 0;
        color: #1a0dab;
        font-size: 18px;
    }
    .search-result p {
        margin: 5px 0;
        color: #545454;
        font-size: 14px;
    }
    </style>
    """, unsafe_allow_html=True)

# Function to perform a Google search
def search_google(query, proxy=None):
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36'
    }
    url = f'https://www.google.com/search?q={query.replace(" ", "+")}&hl=en'
    proxies = {"http": proxy, "https": proxy} if proxy else None
    response = requests.get(url, headers=headers, proxies=proxies, timeout=10)
    if "detected unusual traffic" in response.text.lower():
        return None, True
    return response.text, False

# Function to parse Google search results
def parse_search_results(html_content):
    soup = BeautifulSoup(html_content, 'html.parser')
    results = []
    for g in soup.find_all('div', class_='tF2Cxc'):
        title = g.find('h3').text if g.find('h3') else "No title"
        link = g.find('a')['href'] if g.find('a') else "No link"
        snippet = g.find('span', class_='aCOpRe').text if g.find('span', class_='aCOpRe') else "No snippet"
        results.append({'title': title, 'link': link, 'snippet': snippet})
    return results

# Streamlit App
def main():
    st.set_page_config(page_title="Google Search Clone with Secure Navigation", layout="centered")
    load_css()
    
    st.markdown('<div class="search-bar">', unsafe_allow_html=True)
    query = st.text_input("Enter your search query:", label_visibility="collapsed")
    search_button = st.button("Search")
    st.markdown('</div>', unsafe_allow_html=True)

    if search_button and query.strip():
        with st.spinner("Searching..."):
            html_content, captcha_detected = search_google(query)
            
            if captcha_detected:
                st.error("CAPTCHA detected. Please try again later or reduce search frequency.")
                return
            
            if html_content:
                search_results = parse_search_results(html_content)
                for result in search_results:
                    st.markdown(f"""
                    <div class="search-result">
                        <h3><a href="{result['link']}" target="_blank">{result['title']}</a></h3>
                        <p>{result['snippet']}</p>
                        <a href="/safe_preview?url={result['link']}" target="_self">Secure Preview</a>
                    </div>
                    """, unsafe_allow_html=True)

    # Display website securely
    if "safe_preview" in st.query_params:
        url = st.query_params.get("url", [None])[0]
        if url:
            try:
                response = requests.get(url, timeout=10)
                if response.status_code == 200:
                    st.write(f"### Preview of: {url}")
                    st.code(response.text[:2000], language='html')  # Display HTML preview
                else:
                    st.error(f"Failed to fetch the website. Status code: {response.status_code}")
            except Exception as e:
                st.error(f"Error fetching the website: {str(e)}")

if __name__ == "__main__":
    main()