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# FILE: web/backend/python/ewaste_analyzer.py

import sys
import json
from datetime import datetime

# --- FULL DATABASE AND MULTIPLIERS (FROM YOUR JS UTILITY) ---
device_database = {
    'smartphones': {
        'brands': {
            'Apple': {
                'models': {
                    'iPhone 15 Pro Max': {'basePrice': 800, 'releaseYear': 2023},
                    'iPhone 15 Pro': {'basePrice': 700, 'releaseYear': 2023},
                    'iPhone 15': {'basePrice': 500, 'releaseYear': 2023},
                    'iPhone 14 Pro Max': {'basePrice': 650, 'releaseYear': 2022},
                    'iPhone 14 Pro': {'basePrice': 550, 'releaseYear': 2022},
                    'iPhone 14': {'basePrice': 400, 'releaseYear': 2022},
                    'iPhone 13 Pro Max': {'basePrice': 500, 'releaseYear': 2021},
                    'iPhone 13 Pro': {'basePrice': 450, 'releaseYear': 2021},
                    'iPhone 13': {'basePrice': 350, 'releaseYear': 2021},
                    'iPhone 12 Pro Max': {'basePrice': 400, 'releaseYear': 2020},
                    'iPhone 12 Pro': {'basePrice': 350, 'releaseYear': 2020},
                    'iPhone 12': {'basePrice': 280, 'releaseYear': 2020},
                    'iPhone 11 Pro Max': {'basePrice': 300, 'releaseYear': 2019},
                    'iPhone 11 Pro': {'basePrice': 250, 'releaseYear': 2019},
                    'iPhone 11': {'basePrice': 200, 'releaseYear': 2019},
                    'iPhone XS Max': {'basePrice': 200, 'releaseYear': 2018},
                    'iPhone XS': {'basePrice': 180, 'releaseYear': 2018},
                    'iPhone XR': {'basePrice': 150, 'releaseYear': 2018},
                    'iPhone X': {'basePrice': 120, 'releaseYear': 2017},
                    'iPhone 8 Plus': {'basePrice': 100, 'releaseYear': 2017},
                    'iPhone 8': {'basePrice': 80, 'releaseYear': 2017},
                    'iPhone 7 Plus': {'basePrice': 70, 'releaseYear': 2016},
                    'iPhone 7': {'basePrice': 50, 'releaseYear': 2016}
                }
            },
            'Samsung': {
                'models': {
                    'Galaxy S24 Ultra': {'basePrice': 600, 'releaseYear': 2024},
                    'Galaxy S24+': {'basePrice': 500, 'releaseYear': 2024},
                    'Galaxy S24': {'basePrice': 400, 'releaseYear': 2024},
                    'Galaxy S23 Ultra': {'basePrice': 500, 'releaseYear': 2023},
                    'Galaxy S23+': {'basePrice': 400, 'releaseYear': 2023},
                    'Galaxy S23': {'basePrice': 320, 'releaseYear': 2023},
                    'Galaxy S22 Ultra': {'basePrice': 400, 'releaseYear': 2022},
                    'Galaxy S22+': {'basePrice': 320, 'releaseYear': 2022},
                    'Galaxy S22': {'basePrice': 250, 'releaseYear': 2022},
                    'Galaxy S21 Ultra': {'basePrice': 350, 'releaseYear': 2021},
                    'Galaxy S21+': {'basePrice': 280, 'releaseYear': 2021},
                    'Galaxy S21': {'basePrice': 220, 'releaseYear': 2021},
                    'Galaxy Note 20 Ultra': {'basePrice': 300, 'releaseYear': 2020},
                    'Galaxy Note 20': {'basePrice': 250, 'releaseYear': 2020},
                    'Galaxy S20 Ultra': {'basePrice': 280, 'releaseYear': 2020},
                    'Galaxy S20+': {'basePrice': 220, 'releaseYear': 2020},
                    'Galaxy S20': {'basePrice': 180, 'releaseYear': 2020},
                    'Galaxy Note 10+': {'basePrice': 200, 'releaseYear': 2019},
                    'Galaxy Note 10': {'basePrice': 170, 'releaseYear': 2019},
                    'Galaxy S10+': {'basePrice': 150, 'releaseYear': 2019},
                    'Galaxy S10': {'basePrice': 120, 'releaseYear': 2019}
                }
            },
            'Google': {
                'models': {
                    'Pixel 8 Pro': {'basePrice': 450, 'releaseYear': 2023},
                    'Pixel 8': {'basePrice': 350, 'releaseYear': 2023},
                    'Pixel 7 Pro': {'basePrice': 350, 'releaseYear': 2022},
                    'Pixel 7': {'basePrice': 280, 'releaseYear': 2022},
                    'Pixel 6 Pro': {'basePrice': 280, 'releaseYear': 2021},
                    'Pixel 6': {'basePrice': 220, 'releaseYear': 2021},
                    'Pixel 5': {'basePrice': 150, 'releaseYear': 2020},
                    'Pixel 4 XL': {'basePrice': 120, 'releaseYear': 2019},
                    'Pixel 4': {'basePrice': 100, 'releaseYear': 2019}
                }
            },
            'OnePlus': {
                'models': {
                    'OnePlus 12': {'basePrice': 400, 'releaseYear': 2024},
                    'OnePlus 11': {'basePrice': 320, 'releaseYear': 2023},
                    'OnePlus 10 Pro': {'basePrice': 280, 'releaseYear': 2022},
                    'OnePlus 9 Pro': {'basePrice': 220, 'releaseYear': 2021},
                    'OnePlus 9': {'basePrice': 180, 'releaseYear': 2021},
                    'OnePlus 8 Pro': {'basePrice': 150, 'releaseYear': 2020},
                    'OnePlus 8': {'basePrice': 120, 'releaseYear': 2020}
                }
            }
        }
    },
    'laptops': {
        'brands': {
            'Apple': {
                'models': {
                    'MacBook Pro 16" M3': {'basePrice': 1800, 'releaseYear': 2023},
                    'MacBook Pro 14" M3': {'basePrice': 1400, 'releaseYear': 2023},
                    'MacBook Air M3': {'basePrice': 900, 'releaseYear': 2024},
                    'MacBook Pro 16" M2': {'basePrice': 1500, 'releaseYear': 2022},
                    'MacBook Pro 14" M2': {'basePrice': 1200, 'releaseYear': 2022},
                    'MacBook Air M2': {'basePrice': 800, 'releaseYear': 2022},
                    'MacBook Pro 16" M1': {'basePrice': 1200, 'releaseYear': 2021},
                    'MacBook Pro 14" M1': {'basePrice': 1000, 'releaseYear': 2021},
                    'MacBook Air M1': {'basePrice': 650, 'releaseYear': 2020},
                    'MacBook Pro 16" Intel': {'basePrice': 800, 'releaseYear': 2019},
                    'MacBook Pro 13" Intel': {'basePrice': 600, 'releaseYear': 2020},
                    'MacBook Air Intel': {'basePrice': 400, 'releaseYear': 2020}
                }
            },
            'Dell': {
                'models': {
                    'XPS 15 (2024)': {'basePrice': 1000, 'releaseYear': 2024},
                    'XPS 13 (2024)': {'basePrice': 800, 'releaseYear': 2024},
                    'XPS 15 (2023)': {'basePrice': 900, 'releaseYear': 2023},
                    'XPS 13 (2023)': {'basePrice': 700, 'releaseYear': 2023},
                    'XPS 15 (2022)': {'basePrice': 800, 'releaseYear': 2022},
                    'XPS 13 (2022)': {'basePrice': 600, 'releaseYear': 2022},
                    'Inspiron 15 7000': {'basePrice': 400, 'releaseYear': 2023},
                    'Inspiron 14 5000': {'basePrice': 300, 'releaseYear': 2023},
                    'Latitude 7420': {'basePrice': 500, 'releaseYear': 2021},
                    'Latitude 5520': {'basePrice': 350, 'releaseYear': 2021}
                }
            },
            'HP': {
                'models': {
                    'Spectre x360 16': {'basePrice': 900, 'releaseYear': 2023},
                    'Spectre x360 14': {'basePrice': 700, 'releaseYear': 2023},
                    'EliteBook 850 G9': {'basePrice': 600, 'releaseYear': 2022},
                    'Pavilion 15': {'basePrice': 350, 'releaseYear': 2023},
                    'Envy 13': {'basePrice': 450, 'releaseYear': 2022},
                    'ProBook 450 G9': {'basePrice': 400, 'releaseYear': 2022}
                }
            },
            'Lenovo': {
                'models': {
                    'ThinkPad X1 Carbon Gen 11': {'basePrice': 1000, 'releaseYear': 2023},
                    'ThinkPad X1 Carbon Gen 10': {'basePrice': 850, 'releaseYear': 2022},
                    'ThinkPad T14 Gen 4': {'basePrice': 600, 'releaseYear': 2023},
                    'ThinkPad T14 Gen 3': {'basePrice': 500, 'releaseYear': 2022},
                    'IdeaPad 5 Pro': {'basePrice': 400, 'releaseYear': 2023},
                    'Legion 5 Pro': {'basePrice': 800, 'releaseYear': 2023},
                    'Yoga 9i': {'basePrice': 700, 'releaseYear': 2023}
                }
            },
            'ASUS': {
                'models': {
                    'ZenBook Pro 16X': {'basePrice': 1200, 'releaseYear': 2023},
                    'ZenBook 14': {'basePrice': 600, 'releaseYear': 2023},
                    'ROG Zephyrus G15': {'basePrice': 900, 'releaseYear': 2023},
                    'VivoBook S15': {'basePrice': 400, 'releaseYear': 2023},
                    'TUF Gaming A15': {'basePrice': 500, 'releaseYear': 2023}
                }
            }
        }
    },
    'tablets': {
        'brands': {
            'Apple': {
                'models': {
                    'iPad Pro 12.9" M4': {'basePrice': 800, 'releaseYear': 2024},
                    'iPad Pro 11" M4': {'basePrice': 650, 'releaseYear': 2024},
                    'iPad Air M2': {'basePrice': 450, 'releaseYear': 2024},
                    'iPad Pro 12.9" M2': {'basePrice': 700, 'releaseYear': 2022},
                    'iPad Pro 11" M2': {'basePrice': 550, 'releaseYear': 2022},
                    'iPad Air M1': {'basePrice': 400, 'releaseYear': 2022},
                    'iPad 10th Gen': {'basePrice': 250, 'releaseYear': 2022},
                    'iPad 9th Gen': {'basePrice': 200, 'releaseYear': 2021},
                    'iPad mini 6': {'basePrice': 350, 'releaseYear': 2021}
                }
            },
            'Samsung': {
                'models': {
                    'Galaxy Tab S9 Ultra': {'basePrice': 700, 'releaseYear': 2023},
                    'Galaxy Tab S9+': {'basePrice': 550, 'releaseYear': 2023},
                    'Galaxy Tab S9': {'basePrice': 450, 'releaseYear': 2023},
                    'Galaxy Tab S8 Ultra': {'basePrice': 600, 'releaseYear': 2022},
                    'Galaxy Tab S8+': {'basePrice': 450, 'releaseYear': 2022},
                    'Galaxy Tab S8': {'basePrice': 350, 'releaseYear': 2022},
                    'Galaxy Tab A8': {'basePrice': 150, 'releaseYear': 2022}
                }
            },
            'Microsoft': {
                'models': {
                    'Surface Pro 10': {'basePrice': 800, 'releaseYear': 2024},
                    'Surface Pro 9': {'basePrice': 650, 'releaseYear': 2022},
                    'Surface Pro 8': {'basePrice': 550, 'releaseYear': 2021},
                    'Surface Go 4': {'basePrice': 300, 'releaseYear': 2023},
                    'Surface Go 3': {'basePrice': 250, 'releaseYear': 2021}
                }
            }
        }
    }
}

condition_multipliers = {
    'Like New': 0.9, 'Excellent': 0.8, 'Good': 0.65,
    'Fair': 0.45, 'Poor': 0.25, 'For Parts': 0.15
}

storage_multipliers = {
    '16GB': 0.7, '32GB': 0.8, '64GB': 0.9, '128GB': 1.0,
    '256GB': 1.15, '512GB': 1.3, '1TB': 1.5, '2TB': 1.8
}

def calculate_price(device_type, brand, model, condition, storage, accessories):
    device = device_database.get(device_type, {}).get('brands', {}).get(brand, {}).get('models', {}).get(model)
    if not device:
        raise ValueError(f"Device not found in database: {brand} {model}")

    base_price = device['basePrice']
    current_year = datetime.now().year
    device_age = current_year - device['releaseYear']

    if device_age <= 3:
      age_multiplier = max(0.4, 1 - (device_age * 0.1))
    else:
      age_multiplier = max(0.2, 0.7 - ((device_age - 3) * 0.05))

    condition_multiplier = condition_multipliers.get(condition, 0.5)
    storage_multiplier = storage_multipliers.get(storage, 1.0)
    
    estimated_value = base_price * age_multiplier * condition_multiplier * storage_multiplier
    
    accessory_bonus = 0
    if 'Original Box' in accessories: accessory_bonus += estimated_value * 0.05
    if 'Charger' in accessories: accessory_bonus += estimated_value * 0.03
    if 'Cables' in accessories: accessory_bonus += estimated_value * 0.02
    if 'Manual' in accessories: accessory_bonus += estimated_value * 0.01
    if 'Case/Cover' in accessories: accessory_bonus += estimated_value * 0.02
    estimated_value += accessory_bonus
    
    return {
        'minPrice': round(estimated_value * 0.85),
        'maxPrice': round(estimated_value * 1.15),
        'estimatedValue': round(estimated_value)
    }

def get_full_analysis(form_data):
    price_result = calculate_price(
        form_data.get('deviceType'),
        form_data.get('brand'),
        form_data.get('model'),
        form_data.get('condition'),
        form_data.get('storage', '128GB'),
        form_data.get('accessories', [])
    )
    return {"priceAnalysis": price_result}

if __name__ == "__main__":
    try:
        form_data = json.load(sys.stdin)
        analysis_data = get_full_analysis(form_data)
        print(json.dumps(analysis_data))
    except Exception as e:
        print(json.dumps({"error": str(e)}), file=sys.stderr)
        sys.exit(1)