Delete app.py

app.py

@@ -1,209 +0,0 @@
-import streamlit as st
-import pandas as pd
-from fpdf import FPDF
-import io
-import openai
-
-# ========== PAGE CONFIG ==========
-st.set_page_config(page_title="ASME Calculator", layout="wide")
-
-# App Title + Description
-st.markdown("<h1 style='text-align: center;'>🛠️ ASME CALCULATOR</h1>", unsafe_allow_html=True)
-st.markdown(
-    "<p style='text-align: center;'>This tool calculates <b>required thicknesses, nozzle reinforcement, "
-    "PWHT, and impact test requirements</b><br>using ASME Section VIII Division 1 formulas.</p>",
-    unsafe_allow_html=True
-)
-
-# ========== API CLIENT ==========
-if "OPENAI_API_KEY" in st.secrets:
-    openai.api_key = st.secrets["OPENAI_API_KEY"]
-else:
-    openai.api_key = None
-
-# ========== PDF GENERATOR ==========
-class PDF(FPDF):
-    def __init__(self):
-        super().__init__()
-        self.add_page()
-        self.set_font("Helvetica", "", 12)
-
-    def header(self):
-        self.set_font("Helvetica", "B", 14)
-        self.cell(0, 10, "ASME VIII Div.1 Vessel Design Report", 0, 1, "C")
-
-    def chapter_title(self, title):
-        self.set_font("Helvetica", "B", 12)
-        self.cell(0, 10, title, 0, 1, "L")
-
-    def chapter_body(self, body):
-        self.set_font("Helvetica", "", 11)
-        self.multi_cell(0, 8, body)
-
-# ========== CALCULATION FUNCTIONS ==========
-def shell_thickness(P, D, S, E, corrosion):
-    R = D / 2  # convert diameter to radius
-    return (P * R) / (S * E - 0.6 * P) + corrosion
-
-def head_thickness(P, D, S, E, corrosion, head_type):
-    R = D / 2
-    if head_type == "Ellipsoidal":  # UG-32
-        return (0.5 * P * R) / (S * E - 0.1 * P) + corrosion
-    elif head_type == "Torispherical":  # Approx formula
-        return (0.885 * P * R) / (S * E - 0.1 * P) + corrosion
-    elif head_type == "Hemispherical":  # UG-32
-        return (P * R) / (2 * S * E - 0.2 * P) + corrosion
-    return None
-
-def nozzle_reinforcement(P, d, t_shell, t_nozzle, S, E):
-    return (P * d) / (2 * S * E) <= (t_shell + t_nozzle)
-
-def pwht_required(thickness, material="CS"):
-    return material == "CS" and thickness > 38
-
-def impact_test_required(thickness, MDMT=-20, material="CS"):
-    return material == "CS" and (MDMT < -29 and thickness > 12)
-
-# ========== SESSION STATE ==========
-if "run_done" not in st.session_state:
-    st.session_state.run_done = False
-if "ai_done" not in st.session_state:
-    st.session_state.ai_done = False
-
-# ========== SIDEBAR INPUTS ==========
-with st.sidebar.expander("📥 Manual Design Inputs", expanded=True):
-    input_mode = st.radio("Input Mode:", ["Manual Entry", "Upload CSV"])
-    run_calculation = False
-
-    if input_mode == "Manual Entry":
-        P = st.number_input("Design Pressure (MPa)", value=2.0, format="%.2f")
-        D = st.number_input("Internal Diameter (mm)", value=2000.0, format="%.1f")
-        S = st.number_input("Allowable Stress (MPa)", value=120.0, format="%.1f")
-        corrosion = st.number_input("Corrosion Allowance (mm)", value=1.5, format="%.2f")
-
-        joint_method = st.radio("Joint Efficiency Selection", ["Preset (UW-12)", "Manual Entry"])
-        if joint_method == "Preset (UW-12)":
-            E = st.selectbox("Select E (Joint Efficiency)", [1.0, 0.85, 0.7, 0.65, 0.6, 0.45])
-        else:
-            E = st.number_input("Manual Joint Efficiency (0-1)", value=0.85, min_value=0.1, max_value=1.0)
-
-        head_type = st.selectbox("Head Type", ["Ellipsoidal", "Torispherical", "Hemispherical"])
-        d_nozzle = st.number_input("Nozzle Diameter (mm)", value=200.0, format="%.1f")
-        t_shell = st.number_input("Shell Thickness Provided (mm)", value=12.0, format="%.1f")
-        t_nozzle = st.number_input("Nozzle Thickness Provided (mm)", value=10.0, format="%.1f")
-        thickness = st.number_input("Governing Thickness (mm)", value=40.0, format="%.1f")
-        MDMT = st.number_input("MDMT (°C)", value=-20.0, format="%.1f")
-
-        if st.button("🚀 Run Calculation", use_container_width=True):
-            st.session_state.run_done = True
-            run_calculation = True
-
-        if st.session_state.run_done:
-            st.success("✅ Calculations completed! See results in the tabs.")
-
-    else:
-        uploaded_file = st.file_uploader("Upload CSV File", type=["csv"])
-        if uploaded_file:
-            df = pd.read_csv(uploaded_file)
-            st.dataframe(df.head())
-            if st.button("🚀 Run Calculation", use_container_width=True):
-                st.session_state.run_done = True
-                run_calculation = True
-
-            if st.session_state.run_done:
-                st.success("✅ Calculations completed! See results in the tabs.")
-
-# ========== TABS ==========
-tabs = st.tabs(["Shell", "Head", "Nozzle", "PWHT", "Impact Test", "Summary", "AI Explanation"])
-
-if st.session_state.run_done:
-    # --- SHELL TAB ---
-    with tabs[0]:
-        t_shell_calc = shell_thickness(P, D, S, E, corrosion)
-        st.metric("Required Shell Thickness (mm) [UG-27]", f"{t_shell_calc:.2f}")
-
-    # --- HEAD TAB ---
-    with tabs[1]:
-        t_head_calc = head_thickness(P, D, S, E, corrosion, head_type)
-        st.metric(f"Required {head_type} Head Thickness (mm) [UG-32]", f"{t_head_calc:.2f}")
-
-    # --- NOZZLE TAB ---
-    with tabs[2]:
-        safe_nozzle = nozzle_reinforcement(P, d_nozzle, t_shell, t_nozzle, S, E)
-        st.write("Nozzle Reinforcement Check [UG-37]:", "✅ Safe" if safe_nozzle else "❌ Not Safe")
-
-    # --- PWHT TAB ---
-    with tabs[3]:
-        st.write("PWHT Required:", "✅ Yes" if pwht_required(thickness) else "❌ No")
-
-    # --- IMPACT TEST TAB ---
-    with tabs[4]:
-        st.write("Impact Test Required:", "✅ Yes" if impact_test_required(thickness, MDMT) else "❌ No")
-
-    # --- SUMMARY TAB ---
-    with tabs[5]:
-        summary_data = {
-            "Shell Thickness (UG-27)": round(t_shell_calc, 2),
-            "Head Thickness (UG-32)": round(t_head_calc, 2),
-            "Nozzle Safe (UG-37)": safe_nozzle,
-            "PWHT Required": pwht_required(thickness),
-            "Impact Test Required": impact_test_required(thickness, MDMT),
-        }
-        df_summary = pd.DataFrame([summary_data])
-        st.dataframe(df_summary)
-
-        # CSV export
-        csv = df_summary.to_csv(index=False).encode("utf-8")
-        st.download_button("📥 Download Results (CSV)", csv, "results.csv")
-
-        # PDF export
-        pdf = PDF()
-        pdf.chapter_title("Calculation Summary")
-        for k, v in summary_data.items():
-            pdf.chapter_body(f"{k}: {v}")
-        pdf_bytes = pdf.output(dest="S").encode("latin1")
-        st.download_button("📄 Download PDF Report", pdf_bytes, "results.pdf", "application/pdf")
-
-    # --- AI EXPLANATION TAB ---
-    with tabs[6]:
-        st.markdown("### 🤖 Ask AI for Explanation")
-        if not openai.api_key:
-            st.warning("⚠️ Add your OpenAI API key in Streamlit secrets to enable AI explanations.")
-        else:
-            if st.button("✨ Ask AI", use_container_width=True):
-                st.session_state.ai_done = True
-                with st.spinner("AI is preparing explanation..."):
-                    prompt = f"Explain these ASME vessel design results in simple terms: {summary_data}"
-
-                    try:
-                        chat_completion = openai.ChatCompletion.create(
-                            model="gpt-4o-mini",
-                            messages=[
-                                {"role": "system", "content": "You are an ASME design expert who explains results clearly."},
-                                {"role": "user", "content": prompt}
-                            ],
-                            temperature=0.3
-                        )
-                        explanation = chat_completion["choices"][0]["message"]["content"]
-                        st.success("✅ AI Explanation Generated Below")
-                        st.write(explanation)
-
-                    except Exception as e:
-                        st.error(f"⚠️ Error generating AI explanation: {e}")
-
-            if st.session_state.ai_done:
-                st.info("✨ AI explanation already generated. Rerun to refresh.")
-
-else:
-    # Placeholders
-    for i, msg in enumerate([
-        "Shell results", "Head results", "Nozzle results",
-        "PWHT decision", "Impact Test decision",
-        "Summary", "AI explanation"
-    ]):
-        with tabs[i]:
-            st.info(f"Run calculation to see {msg}.")
-
-# ========== FOOTER ==========
-st.markdown("---")
-st.caption("Disclaimer: This tool is for demo/educational purposes. Final design must be verified by a qualified engineer per ASME VIII Div.1.")