import streamlit as st

st.set_page_config(page_title="Mechanical Engineer Certification Guide", layout="centered")

st.title("🎓 Certification Guide for Mechanical Engineers - GCC Region")

# Dropdown for selecting career path
career_path = st.selectbox(
    "Select your preferred Mechanical Engineering field:",
    (
        "--- Select ---",
        "QA/QC (Quality Assurance / Control)",
        "Design Engineering",
        "Project Management",
        "Health and Safety (HSE)",
        "Maintenance Engineering",
        "General Management / Planning"
    )
)

# Data: Certifications, Salaries, Region Demand, Top Companies
data = {
    "QA/QC (Quality Assurance / Control)": {
        "certifications": [
            "CSWIP (Welding Inspector)",
            "BGAS (Painting Inspector)",
            "ASNT NDT Level II / III",
            "API 510 / 570 / 653 (Pressure Vessel, Piping, Tank Inspection)"
        ],
        "salary": {
            "Fresher": "4,000 – 6,000 SAR",
            "Mid-Level (3–7 yrs)": "7,000 – 12,000 SAR",
            "Experienced (8+ yrs)": "13,000 – 20,000+ SAR"
        },
        "regions": ["Jubail", "Yanbu", "Riyadh", "Abu Dhabi", "Doha"],
        "companies": ["Saudi Aramco", "SABIC", "SWCC", "Bechtel", "Technip Energies", "Samsung Engineering"]
    },
    "Design Engineering": {
        "certifications": [
            "Certified SolidWorks Professional (CSWP)",
            "Autodesk Certified Professional (AutoCAD / Revit)",
            "Creo Certification",
            "Piping Design Certification (SP3D / PDMS)",
            "FEA / CFD Simulation Courses (ANSYS)"
        ],
        "salary": {
            "Fresher": "4,000 – 7,000 SAR",
            "Mid-Level (3–7 yrs)": "8,000 – 14,000 SAR",
            "Experienced (8+ yrs)": "15,000 – 22,000+ SAR"
        },
        "regions": ["Dubai", "Riyadh", "Doha", "Dammam", "Muscat"],
        "companies": ["Worley", "KBR", "Jacobs", "Fluor", "NES Fircroft", "Saipem"]
    },
    "Project Management": {
        "certifications": [
            "PMP (Project Management Professional)",
            "CAPM (Certified Associate in Project Management)",
            "PRINCE2 Foundation/Practitioner",
            "Primavera P6 Certification"
        ],
        "salary": {
            "Fresher": "5,000 – 8,000 SAR",
            "Mid-Level (3–7 yrs)": "10,000 – 18,000 SAR",
            "Experienced (8+ yrs)": "20,000 – 30,000+ SAR"
        },
        "regions": ["Riyadh", "Dubai", "Abu Dhabi", "Jeddah", "Kuwait City"],
        "companies": ["Saudi Aramco", "Bechtel", "Fluor", "Parsons", "AECOM", "McDermott"]
    },
    "Health and Safety (HSE)": {
        "certifications": [
            "NEBOSH IGC (International General Certificate)",
            "IOSH Managing Safely",
            "OSHA 30 Hours",
            "First Aid & Fire Safety Training"
        ],
        "salary": {
            "Fresher": "4,000 – 6,000 SAR",
            "Mid-Level (3–7 yrs)": "7,000 – 11,000 SAR",
            "Experienced (8+ yrs)": "12,000 – 18,000+ SAR"
        },
        "regions": ["Jubail", "Ruwais", "Doha", "Abu Dhabi", "Dammam"],
        "companies": ["Hyundai Engineering", "SNC-Lavalin", "ENI", "ARAMCO", "NPCC", "L&T"]
    },
    "Maintenance Engineering": {
        "certifications": [
            "CMRP (Certified Maintenance & Reliability Professional)",
            "SAP PM Training (Plant Maintenance)",
            "RCM (Reliability-Centered Maintenance)",
            "Predictive Maintenance Training (Vibration, Thermography)"
        ],
        "salary": {
            "Fresher": "4,000 – 7,000 SAR",
            "Mid-Level (3–7 yrs)": "8,000 – 13,000 SAR",
            "Experienced (8+ yrs)": "14,000 – 20,000+ SAR"
        },
        "regions": ["Jubail", "Yanbu", "Riyadh", "Muscat", "Doha"],
        "companies": ["SABIC", "Ma'aden", "SWCC", "Marafiq", "Aramco", "Petro Rabigh"]
    },
    "General Management / Planning": {
        "certifications": [
            "MBA (Operations / Engineering Management)",
            "Lean Six Sigma Green Belt / Black Belt",
            "ERP (SAP, Oracle EAM)",
            "Strategic Planning & Leadership Courses"
        ],
        "salary": {
            "Fresher": "5,000 – 7,000 SAR",
            "Mid-Level (3–7 yrs)": "10,000 – 16,000 SAR",
            "Experienced (8+ yrs)": "18,000 – 28,000+ SAR"
        },
        "regions": ["Riyadh", "Dubai", "Abu Dhabi", "Jeddah", "Manama"],
        "companies": ["ARAMCO", "SABIC", "Alfanar", "Zamil", "Olayan", "Nesma & Partners"]
    }
}

# Display content only after valid selection
if career_path != "--- Select ---":
    selected = data[career_path]

    st.subheader("🌍 In-demand Certifications:")
    for cert in selected["certifications"]:
        st.markdown(f"- ✅ {cert}")

    st.subheader("💰 Estimated Monthly Salary in KSA (SAR)")
    st.write("Note: Actual salary may vary depending on company, city, and qualification.")
    st.markdown(f"- **Fresher**: {selected['salary']['Fresher']}")
    st.markdown(f"- **Mid-Level (3–7 yrs)**: {selected['salary']['Mid-Level (3–7 yrs)']}")
    st.markdown(f"- **Experienced (8+ yrs)**: {selected['salary']['Experienced (8+ yrs)']}")

    st.subheader("📍 GCC Regions with High Demand:")
    st.write(", ".join(selected["regions"]))

    st.subheader("🏢 Top Companies in KSA / GCC Hiring in This Field:")
    for company in selected["companies"]:
        st.markdown(f"- 🏢 {company}")