app.py

import streamlit as st
import os
import sys
from datetime import datetime

# 1. Page Configuration
st.set_page_config(
    page_title="Pristine Space Isolation Test", 
    page_icon="⚡", 
    layout="wide",
    initial_sidebar_state="collapsed"
)

# 2. Custom CSS for Premium Dashboard Styling
st.markdown("""
    <style>
        .main {
            background-color: #f8f9fa;
        }
        .metric-card {
            background-color: #ffffff;
            padding: 20px;
            border-radius: 12px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            border: 1px solid #e9ecef;
            margin-bottom: 15px;
        }
        .status-badge {
            background-color: #d4edda;
            color: #155724;
            padding: 4px 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            display: inline-block;
        }
        .stJson {
            background-color: #1e1e1e !important;
            border-radius: 8px;
            padding: 10px;
        }
    </style>
""", unsafe_allow_html=True)

# 3. Header / Top Banner Section
with st.container():
    # Removed "spec=" keyword completely to prevent syntax parser crashes
    	col_title, col_status = st.columns(2)

with col_title:
        st.title("⚡ Pristine Isolated Deployment")
        st.markdown(
            "<p style='color: #6c757d; font-size: 1.1rem; margin-top: -10px;'> "
            "Automated infrastructure verification and runtime health dashboard."
            "</p>", 
            unsafe_allow_html=True
        )
with col_status:
        st.markdown("<div style='text-align: right; margin-top: 25px;'>", unsafe_allow_html=True)
        st.markdown('<span class="status-badge">● System Synchronized</span>', unsafe_allow_html=True) if hasattr(st, "status") else st.markdown('<span class="status-badge">● System Synchronized</span>', unsafe_allow_html=True)
        st.markdown(f"<p style='color: #6c757d; font-size: 0.8rem; margin-top: 5px;'>Checked: {datetime.now().strftime('%H:%M:%S UTC')}</p>", unsafe_allow_html=True)
        st.markdown("</div>", unsafe_allow_html=True)

st.divider()

# 4. High-Level Telemetry Cards
col_m1, col_m2, col_m3, col_m4 = st.columns(4)
with col_m1:
    st.metric(label="Network Proxy Routing", value="Active / Healthy", delta="100% Up")
with col_m2:
    st.metric(label="Target Binding Port", value=os.environ.get("PORT", "7860"))
with col_m3:
    st.metric(label="Docker Layer Isolated", value="True", delta="Secured")
with col_m4:
    st.metric(label="Workspace Files", value=f"{len(os.listdir('.'))} Objects")

st.markdown("<br>", unsafe_allow_html=True)

# 5. Technical Diagnostic Grid
st.subheader("🛠️ Deep-System Architecture Snapshots")

col_left, col_right = st.columns(2)

with col_left:
    st.markdown('<div class="metric-card">', unsafe_allow_html=True)
    st.markdown("#### 📂 File System Topography")
    st.caption("Verifying ephemeral volume mounting and working directory alignment.")
    
    tab1, tab2 = st.tabs(["📋 Root Array", "📍 Active Path"])
    with tab1:
        st.json(os.listdir('.'))
    with tab2:
        st.code(os.getcwd(), language="bash")
    st.markdown('</div>', unsafe_allow_html=True)

with col_right:
    st.markdown('<div class="metric-card">', unsafe_allow_html=True)
    st.markdown("#### 🌐 Network & Runtime Blueprint")
    st.caption("Ensuring downstream reverse-proxy handshakes match core container specifications.")
    
    st.markdown("**Python Core Engine Specification:**")
    st.code(sys.version, language="python")
    
    st.markdown("**Environment Matrix Snippet:**")
    st.json({
        "PORT_BIND": os.environ.get("PORT", "7860"),
        "PYTHON_EXECUTABLE": sys.executable,
        "SAFE_MODE": "ENABLED"
    })
    st.markdown('</div>', unsafe_allow_html=True)

# 6. Bottom Success Alert
st.success("🎉 **Deployment Validation Confirmed:** Your GitHub Actions pipeline, Docker layer, and cloud edge routing are beautifully synchronized.")