Create app.py

app.py

@@ -0,0 +1,108 @@
+import os
+import streamlit as st
+
+# =============================
+# GLOBAL STATE
+# =============================
+if "sites" not in st.session_state:
+    st.session_state["sites"] = []
+if "active_site_idx" not in st.session_state:
+    st.session_state["active_site_idx"] = None
+
+
+# =============================
+# HELPERS
+# =============================
+
+def get_active_site():
+    """Return the active site dict"""
+    if st.session_state["active_site_idx"] is None:
+        return None
+    return st.session_state["sites"][st.session_state["active_site_idx"]]
+
+def save_active_site(site):
+    """Save updates to current site"""
+    if st.session_state["active_site_idx"] is not None:
+        st.session_state["sites"][st.session_state["active_site_idx"]] = site
+
+
+# =============================
+# FEATURE MODULES
+# =============================
+
+# 1. Soil Recognizer (CNN Image Model)
+def soil_recognizer_page():
+    st.header("🖼️ Soil Recognizer (CNN)")
+    # TODO: implement model load + inference
+    pass
+
+
+# 2. Soil Classifier (OCR + USCS + AASHTO)
+def soil_classifier_page():
+    st.header("📊 Soil Classifier (USCS + AASHTO)")
+    # TODO: implement OCR → auto-fill → chatbot style classification
+    pass
+
+
+# 3. Locator (Earth Engine + Maps)
+def locator_page():
+    st.header("🌍 Locator (Earth Engine Powered)")
+    # TODO: implement EE init + fetch flood, seismic, topo, soil
+    pass
+
+
+# 4. RAG Chatbot (FAISS + Groq)
+def rag_chatbot_page():
+    st.header("💬 Knowledge Assistant (RAG + Groq)")
+    # TODO: implement FAISS search + Groq LLM API
+    pass
+
+
+# 5. PDF Report Generator
+def report_page():
+    st.header("📑 Generate Report")
+    # TODO: compile site data → PDF download
+    pass
+
+
+# 6. Feedback Form
+def feedback_page():
+    st.header("📝 Feedback & Suggestions")
+    # TODO: implement form → send email (trendn.help@gmail.com)
+    pass
+
+
+# =============================
+# NAVIGATION
+# =============================
+
+PAGES = {
+    "Soil Recognizer": soil_recognizer_page,
+    "Soil Classifier": soil_classifier_page,
+    "Locator": locator_page,
+    "Knowledge Assistant": rag_chatbot_page,
+    "Report": report_page,
+    "Feedback": feedback_page,
+}
+
+def main():
+    st.sidebar.title("🌍 GeoMate V2")
+    choice = st.sidebar.radio("Navigate", list(PAGES.keys()))
+
+    # Site memory: add/manage multiple sites
+    if st.sidebar.button("➕ Add Site"):
+        st.session_state["sites"].append({})
+        st.session_state["active_site_idx"] = len(st.session_state["sites"]) - 1
+    if st.session_state["sites"]:
+        st.sidebar.write("Sites:")
+        for i, s in enumerate(st.session_state["sites"]):
+            label = f"Site {i+1}"
+            if st.sidebar.button(label, key=f"site_{i}"):
+                st.session_state["active_site_idx"] = i
+
+    # Run selected page
+    PAGES[choice]()
+
+
+if __name__ == "__main__":
+    main()