Add LlamaIndex integration for enhanced environmental knowledge retrieval and update requirements

app.py

@@ -9,11 +9,13 @@ import io
 import base64
 from dotenv import load_dotenv
 from mcpserver import MCPOrchestrator
+from llamaindex_rag import LlamaIndexEnvironmentalRAG
 
 load_dotenv() 
 # Initialize Anthropic client and MCP Orchestrator
 client = anthropic.Anthropic(api_key=os.environ.get("ANTHROPIC_API_KEY"))
 mcp = MCPOrchestrator(api_key=os.environ.get("ANTHROPIC_API_KEY"))
+llamaindex_rag = LlamaIndexEnvironmentalRAG()
 
 # ===== AUTONOMOUS AGENT SYSTEM =====
 class EcoAgent:
@@ -90,44 +92,14 @@ Provide a concise reasoning summary (3-4 sentences)."""
 
 # ===== RAG COMPONENT: RETRIEVAL AUGMENTED GENERATION =====
 def retrieve_environmental_knowledge(product_name: str, reasoning: str) -> str:
-    """RAG: Retrieve relevant environmental knowledge and context"""
+    """RAG: Retrieve relevant environmental knowledge using LlamaIndex semantic search"""
     
-    # Knowledge base (in production, this would be a vector database)
-    knowledge_base = {
-        "electronics": {
-            "keywords": ["phone", "laptop", "headphones", "computer", "tablet", "device", "earbuds", "speaker"],
-            "context": "E-waste is growing 5x faster than recycling. Contains rare earth metals (lithium, cobalt, neodymium). Manufacturing accounts for 80% of carbon footprint. Conflict minerals common. Planned obsolescence drives waste."
-        },
-        "plastics": {
-            "keywords": ["bottle", "plastic", "packaging", "container", "bag"],
-            "context": "Only 9% of plastic is recycled globally. Takes 450+ years to decompose. Microplastics enter food chain. 8M tons enter oceans yearly. Virgin plastic production = high carbon footprint."
-        },
-        "textiles": {
-            "keywords": ["shirt", "clothing", "fabric", "apparel", "shoes", "leather"],
-            "context": "Fashion industry = 10% global carbon emissions. Water intensive (2,700L per cotton shirt). Textile waste fills landfills. Synthetic fabrics shed microplastics. Dyeing causes water pollution."
-        },
-        "food": {
-            "keywords": ["beef", "meat", "food", "avocado", "coffee"],
-            "context": "Food system = 26% global emissions. Animal agriculture drives deforestation. Meat production = high water/land use. Food waste = 8% global emissions. Transportation impacts vary."
-        },
-        "vehicles": {
-            "keywords": ["car", "vehicle", "electric", "transport"],
-            "context": "Transportation = 27% US emissions. EV battery production energy-intensive. Lifetime emissions lower for EVs. Manufacturing accounts for 15-20% of vehicle emissions. Public transport most efficient."
-        }
-    }
-    
-    # Retrieve relevant context based on keywords
-    product_lower = product_name.lower()
-    retrieved_context = []
-    
-    for category, data in knowledge_base.items():
-        if any(keyword in product_lower for keyword in data["keywords"]):
-            retrieved_context.append(f"**{category.title()} Context:** {data['context']}")
+    print(f"🔍 LlamaIndex searching for: {product_name}")
     
-    if not retrieved_context:
-        retrieved_context.append("**General Context:** Consider full lifecycle: extraction, manufacturing, use, disposal.")
+    # Use LlamaIndex for advanced semantic search
+    knowledge = llamaindex_rag.retrieve_knowledge(product_name, top_k=2)
     
-    return "\n\n".join(retrieved_context)
+    return f"**LlamaIndex Retrieved Knowledge:**\n\n{knowledge}"
 
 # ===== IMPROVED MCP INTEGRATION: VISION ANALYSIS =====
 def analyze_image_with_mcp(image) -> tuple:
@@ -227,6 +199,7 @@ def mcp_lifecycle_assessment(product_name: str, product_data: Dict) -> Dict:
     except Exception as e:
         return {"status": "error", "error": str(e)}
 
+# ===== PHASE 3: EXECUTION WITH CONTEXT ENGINEERING =====
 # ===== PHASE 3: EXECUTION WITH CONTEXT ENGINEERING =====
 def execute_assessment(agent: EcoAgent, product_name: str, vision_data: Dict = None) -> Dict:
     """PHASE 3: EXECUTION - Agent executes assessment with RAG and MCP"""
@@ -292,8 +265,16 @@ Using ALL the above context, provide a comprehensive assessment in this EXACT JS
 IMPORTANT:
 - name MUST be: {product_name}
 - eco_score: realistic number 1-10 for THIS SPECIFIC product
+- alternative: Recommend ONLY NEW sustainable products (NOT second-hand, vintage, used, refurbished, or pre-owned items). Focus on eco-friendly materials, sustainable manufacturing, certifications, or innovative green technologies
 - Be specific and accurate based on the context provided
-- Return ONLY valid JSON, no extra text."""
+- Return ONLY valid JSON, no extra text.
+
+Examples of good alternatives:
+- For shoes: "Vegan leather shoes made from recycled materials with score (8.5/10) - Zero animal products and 70% lower carbon footprint"
+- For electronics: "Energy Star certified laptop with modular design with score (7.8/10) - 50% longer lifespan and easy repair"
+- For clothing: "Organic cotton t-shirt with Fair Trade certification with score (8.2/10) - Pesticide-free farming and ethical production"
+
+DO NOT recommend: second-hand, vintage, used, refurbished, pre-owned, thrift store items."""
 
     try:
         message = client.messages.create(

llamaindex_rag.py

@@ -0,0 +1,675 @@
+"""
+LlamaIndex-powered RAG for Environmental Knowledge Retrieval
+Enhanced with 15 comprehensive product categories
+"""
+
+import os
+from llama_index.core import (
+    VectorStoreIndex,
+    Document,
+    Settings,
+    StorageContext,
+    load_index_from_storage
+)
+from llama_index.llms.anthropic import Anthropic
+from llama_index.embeddings.huggingface import HuggingFaceEmbedding
+from typing import List, Dict
+
+class LlamaIndexEnvironmentalRAG:
+    """Advanced RAG using LlamaIndex for environmental knowledge"""
+    
+    def __init__(self):
+        self.index = None
+        
+        # Configure LlamaIndex settings
+        Settings.llm = Anthropic(
+            model="claude-sonnet-4-20250514",
+            api_key=os.environ.get("ANTHROPIC_API_KEY")
+        )
+        Settings.embed_model = HuggingFaceEmbedding(
+            model_name="BAAI/bge-small-en-v1.5"
+        )
+        
+        self._initialize_index()
+    
+    def _initialize_index(self):
+        """Initialize or load vector index"""
+        persist_dir = "./storage"
+        
+        # Try to load existing index
+        if os.path.exists(persist_dir):
+            try:
+                storage_context = StorageContext.from_defaults(persist_dir=persist_dir)
+                self.index = load_index_from_storage(storage_context)
+                print("✅ Loaded existing LlamaIndex from storage")
+                return
+            except:
+                print("⚠️ Could not load existing index, creating new one...")
+        
+        # Create new index with 15-category environmental knowledge
+        documents = self._create_comprehensive_knowledge_base()
+        
+        print("🔄 Building LlamaIndex vector store...")
+        self.index = VectorStoreIndex.from_documents(documents)
+        
+        # Persist index
+        self.index.storage_context.persist(persist_dir=persist_dir)
+        print("✅ Created and persisted LlamaIndex with 15 categories")
+    
+    def _create_comprehensive_knowledge_base(self) -> List[Document]:
+        """Create comprehensive 15-category environmental knowledge base"""
+        
+        knowledge_docs = [
+            # Category 1: Electronics
+            Document(
+                text="""
+                Electronics and E-Waste Environmental Impact
+                
+                E-waste is the fastest-growing waste stream globally, expanding 5x faster than recycling capacity.
+                Electronic devices contain rare earth metals: lithium, cobalt, neodymium, tantalum, and gold.
+                Manufacturing accounts for 80% of total carbon footprint for most electronic devices.
+                Conflict minerals sourcing causes human rights violations and environmental destruction in mining regions.
+                Planned obsolescence deliberately shortens device lifespan, driving unnecessary waste.
+                
+                Product Examples: smartphones, laptops, headphones, tablets, computers, smart devices, earbuds, speakers, monitors, TVs, cameras
+                
+                Carbon Footprint Data:
+                - Smartphone: 70-80 kg CO2e (manufacturing phase)
+                - Laptop: 300-400 kg CO2e (full lifecycle)
+                - Wireless headphones: 15-20 kg CO2e
+                - Desktop computer: 500 kg CO2e
+                - Smart TV: 300 kg CO2e
+                
+                Environmental Issues:
+                - Toxic materials (lead, mercury, cadmium, brominated flame retardants)
+                - Energy-intensive mining operations causing habitat destruction
+                - Global recycling rate only 20%
+                - Average smartphone replaced every 2 years
+                - E-waste exports to developing countries
+                
+                Sustainable Alternatives:
+                - Refurbished devices (90% lower carbon footprint)
+                - Modular phones like Fairphone (easily repairable)
+                - Long-lasting, Right-to-Repair certified electronics
+                - Electronics leasing and take-back programs
+                - Energy Star certified devices
+                """,
+                metadata={"category": "electronics", "impact_level": "critical", "coverage": "comprehensive"}
+            ),
+            
+            # Category 2: Plastics
+            Document(
+                text="""
+                Plastics Environmental Impact and Pollution Crisis
+                
+                Only 9% of all plastic ever produced has been recycled globally - a recycling failure.
+                Plastics take 450+ years to decompose, breaking into harmful microplastics.
+                Microplastics have entered the entire food chain, found in human blood and organs.
+                8 million tons of plastic waste enter oceans every year, forming massive garbage patches.
+                Virgin plastic production from petroleum creates massive carbon emissions.
+                
+                Product Examples: water bottles, plastic bags, food containers, packaging materials, straws, cups, cutlery, wrap
+                
+                Carbon Footprint Data:
+                - Single plastic bottle: 82g CO2e
+                - Plastic grocery bag: 10g CO2e
+                - Plastic food container: 150g CO2e
+                - Styrofoam cup: 25g CO2e
+                - Plastic wrap (per meter): 5g CO2e
+                
+                Environmental Issues:
+                - Ocean pollution causing marine life deaths (1 million seabirds, 100,000 marine mammals annually)
+                - Microplastic contamination in drinking water (93% of bottled water contains microplastics)
+                - Non-biodegradable waste accumulating in landfills for centuries
+                - Petroleum extraction and refining for plastic production
+                - Toxic chemical leaching into soil and water
+                
+                Sustainable Alternatives:
+                - Reusable stainless steel bottles (saves 30kg CO2e per year)
+                - Glass containers (infinitely recyclable)
+                - Biodegradable materials (PLA from corn starch)
+                - Zero-waste refill programs
+                - Beeswax wraps instead of plastic wrap
+                """,
+                metadata={"category": "plastics", "impact_level": "critical", "urgency": "immediate"}
+            ),
+            
+            # Category 3: Textiles
+            Document(
+                text="""
+                Textiles and Fashion Industry Environmental Impact
+                
+                Fashion industry accounts for 10% of global carbon emissions, more than aviation and shipping combined.
+                Water intensive: 2,700 liters needed for one cotton t-shirt (drinking water for 1 person for 2.5 years).
+                Textile waste fills landfills with 92 million tons annually, most from fast fashion.
+                Synthetic fabrics like polyester shed microplastics into water with every wash.
+                Textile dyeing is the second-largest water polluter globally after agriculture.
+                
+                Product Examples: clothing, shirts, jeans, shoes, leather goods, fast fashion items, dresses, jackets, socks, sportswear
+                
+                Carbon Footprint Data:
+                - Cotton t-shirt: 7 kg CO2e
+                - Pair of jeans: 33 kg CO2e
+                - Running shoes/sneakers: 14 kg CO2e
+                - Leather shoes: 30 kg CO2e
+                - Winter coat: 50 kg CO2e
+                - Dress: 20 kg CO2e
+                
+                Environmental Issues:
+                - Fast fashion waste (average garment worn only 7 times before disposal)
+                - Water pollution from toxic dyes contaminating rivers
+                - Microplastic shedding from polyester (500,000 tons per year into oceans)
+                - Unethical labor practices in garment factories
+                - Cotton farming using 25% of world's pesticides
+                
+                Sustainable Alternatives:
+                - Organic cotton (40% lower carbon footprint, no pesticides)
+                - Recycled materials and upcycled fashion
+                - Second-hand and vintage clothing
+                - Slow fashion brands (Patagonia, Eileen Fisher)
+                - Clothing rental and sharing services
+                - Hemp and bamboo fabrics
+                """,
+                metadata={"category": "textiles", "impact_level": "high", "water_intensive": True}
+            ),
+            
+            # Category 4: Food & Agriculture
+            Document(
+                text="""
+                Food System and Agriculture Environmental Impact
+                
+                Food system accounts for 26% of global greenhouse gas emissions.
+                Animal agriculture drives 80% of Amazon rainforest deforestation.
+                Meat production requires massive water and land use compared to plant-based alternatives.
+                Food waste generates 8% of global emissions - if food waste were a country, it would be 3rd largest emitter.
+                Transportation impact varies dramatically by product type and distance (food miles).
+                
+                Product Examples: beef, meat products, dairy, cheese, chicken, fish, coffee, avocados, processed foods, vegetables
+                
+                Carbon Footprint Data:
+                - Beef (1kg): 60 kg CO2e
+                - Lamb (1kg): 24 kg CO2e
+                - Cheese (1kg): 21 kg CO2e
+                - Pork (1kg): 7 kg CO2e
+                - Chicken (1kg): 6 kg CO2e
+                - Plant-based burger: 2 kg CO2e
+                - Coffee (1kg beans): 15 kg CO2e
+                - Avocado (1kg): 0.8 kg CO2e
+                
+                Environmental Issues:
+                - Methane emissions from cattle (28x more potent than CO2)
+                - Deforestation for agriculture and grazing land
+                - Water scarcity in agricultural regions
+                - Pesticide and fertilizer pollution
+                - Food miles and cold chain transportation
+                - Fishing industry overfishing and bycatch
+                
+                Sustainable Alternatives:
+                - Plant-based proteins (90% lower carbon footprint than beef)
+                - Local and seasonal produce (reduces transport emissions)
+                - Regenerative agriculture practices
+                - Reduced food waste through meal planning
+                - Sustainable fishing certifications (MSC, ASC)
+                - Organic farming methods
+                """,
+                metadata={"category": "food", "impact_level": "critical", "deforestation_driver": True}
+            ),
+            
+            # Category 5: Vehicles & Transportation
+            Document(
+                text="""
+                Vehicles and Transportation Environmental Impact
+                
+                Transportation accounts for 27% of US greenhouse gas emissions, 14% globally.
+                EV battery production is energy-intensive but lifetime emissions are 50-70% lower than ICE vehicles.
+                Manufacturing accounts for 15-20% of total vehicle lifetime emissions.
+                Public transportation is the most efficient option per passenger mile.
+                Aviation contributes 2.5% of global CO2 emissions but growing rapidly.
+                
+                Product Examples: cars, electric vehicles, bikes, e-bikes, scooters, motorcycles, buses, trains
+                
+                Carbon Footprint Data:
+                - ICE Car (lifetime 150,000 miles): 35,000 kg CO2e
+                - Electric Car (lifetime, grid mix): 24,000 kg CO2e
+                - Electric Car (renewable energy): 15,000 kg CO2e
+                - E-bike (lifetime): 500 kg CO2e
+                - Bicycle (manufacturing): 50 kg CO2e
+                - Motorcycle (lifetime): 20,000 kg CO2e
+                
+                Environmental Issues:
+                - Fossil fuel dependence and air pollution
+                - Lithium and cobalt mining for EV batteries
+                - Urban air quality deterioration
+                - Infrastructure emissions (roads, parking)
+                - Resource depletion for manufacturing
+                
+                Sustainable Alternatives:
+                - Electric vehicles powered by renewable energy
+                - Bicycles and e-bikes for short trips
+                - Public transportation (bus, train, metro)
+                - Car-sharing and ride-sharing services
+                - Walking for ultra-short distances
+                - Hybrid vehicles as transition technology
+                """,
+                metadata={"category": "vehicles", "impact_level": "high", "ev_better": True}
+            ),
+            
+            # Category 6: Home & Furniture
+            Document(
+                text="""
+                Home Furniture and Appliances Environmental Impact
+                
+                Furniture production drives deforestation, especially for tropical hardwoods.
+                VOC emissions from paints, finishes, and adhesives harm indoor air quality.
+                Fast furniture culture creates massive landfill waste (similar to fast fashion).
+                Appliances contain refrigerants that are potent greenhouse gases (HFCs).
+                Average sofa produces 90kg CO2e during manufacturing.
+                
+                Product Examples: sofas, tables, chairs, mattresses, beds, desks, shelves, cabinets, refrigerators, washing machines
+                
+                Carbon Footprint Data:
+                - Sofa: 90 kg CO2e
+                - Wooden table: 40 kg CO2e
+                - Mattress: 100 kg CO2e
+                - Office chair: 30 kg CO2e
+                - Refrigerator: 200 kg CO2e
+                - Washing machine: 150 kg CO2e
+                
+                Environmental Issues:
+                - Deforestation for lumber (illegal logging in rainforests)
+                - Formaldehyde and VOC off-gassing
+                - Landfill waste from disposable furniture
+                - HFC refrigerants (1,000-3,000x more potent than CO2)
+                - Energy consumption of appliances
+                
+                Sustainable Alternatives:
+                - Certified sustainable wood (FSC, SFI)
+                - Second-hand and vintage furniture
+                - Energy Star rated appliances
+                - Natural latex mattresses
+                - Modular and repairable furniture
+                - Low-VOC paints and finishes
+                """,
+                metadata={"category": "home_furniture", "impact_level": "moderate", "voc_emissions": True}
+            ),
+            
+            # Category 7: Personal Care & Cosmetics
+            Document(
+                text="""
+                Personal Care and Cosmetics Industry Environmental Impact
+                
+                Beauty industry produces 120 billion packaging units per year, mostly plastic.
+                Microplastics in products (microbeads) enter oceans and food chain.
+                Palm oil in cosmetics drives rainforest deforestation in Southeast Asia.
+                Chemical pollution from production affects waterways globally.
+                Single-use packaging dominates the industry.
+                
+                Product Examples: shampoo, soap, cosmetics, makeup, skincare, deodorant, toothpaste, lotion, perfume, sunscreen
+                
+                Carbon Footprint Data:
+                - Shampoo bottle: 200g CO2e
+                - Makeup palette: 150g CO2e
+                - Deodorant: 100g CO2e
+                - Toothpaste tube: 80g CO2e
+                - Perfume: 300g CO2e
+                - Sunscreen: 180g CO2e
+                
+                Environmental Issues:
+                - 120 billion plastic packaging units annually
+                - Microbeads in scrubs (banned in many countries)
+                - Palm oil plantations replacing rainforests
+                - Chemical runoff polluting waterways
+                - Animal testing in some markets
+                - Single-use sample sachets
+                
+                Sustainable Alternatives:
+                - Solid bars (shampoo, soap) with no packaging
+                - Refillable containers and bulk buying
+                - Natural and organic ingredients
+                - Cruelty-free and vegan products
+                - Biodegradable packaging
+                - Zero-waste brands (Lush, Ethique)
+                """,
+                metadata={"category": "personal_care", "impact_level": "moderate", "plastic_intensive": True}
+            ),
+            
+            # Category 8: Cleaning Products
+            Document(
+                text="""
+                Cleaning Products Environmental Impact
+                
+                Household cleaners release volatile organic compounds (VOCs) affecting air quality.
+                Phosphates in detergents cause water eutrophication and algal blooms.
+                Plastic bottles account for 8 billion units per year in cleaning products alone.
+                Chemical production for cleaners is energy-intensive with toxic byproducts.
+                Concentrated formulas can reduce emissions by 50% through smaller packaging.
+                
+                Product Examples: laundry detergent, dish soap, surface cleaners, bleach, disinfectant, glass cleaner, floor cleaner
+                
+                Carbon Footprint Data:
+                - Laundry detergent (3L): 500g CO2e
+                - Dish soap: 200g CO2e
+                - All-purpose cleaner: 300g CO2e
+                - Bleach: 400g CO2e
+                - Glass cleaner: 150g CO2e
+                
+                Environmental Issues:
+                - VOC emissions affecting indoor and outdoor air quality
+                - Phosphate pollution causing dead zones in waterways
+                - Plastic bottle waste (mostly non-recycled)
+                - Toxic chemical production processes
+                - Antimicrobial resistance from overuse of disinfectants
+                
+                Sustainable Alternatives:
+                - Concentrated formulas (use less packaging)
+                - Refill stations and bulk buying
+                - DIY cleaners (vinegar, baking soda, castile soap)
+                - Plant-based ingredients
+                - Recyclable or compostable packaging
+                - Seventh Generation, Method brands
+                """,
+                metadata={"category": "cleaning_products", "impact_level": "moderate", "water_pollution": True}
+            ),
+            
+            # Category 9: Toys & Games
+            Document(
+                text="""
+                Toys and Gaming Environmental Impact
+                
+                80% of toys are made from plastic, contributing to waste crisis.
+                Average child in US receives 70 new toys per year.
+                Short toy lifespan due to trends and breakage creates high waste.
+                Gaming consoles and electronics become e-waste quickly.
+                Sports equipment often made from single materials difficult to recycle.
+                
+                Product Examples: action figures, dolls, LEGO, puzzles, board games, video game consoles, sports equipment
+                
+                Carbon Footprint Data:
+                - Plastic toy (average): 200g CO2e
+                - LEGO set (1kg): 2 kg CO2e
+                - Board game: 500g CO2e
+                - Gaming console: 50 kg CO2e
+                - Sports ball: 300g CO2e
+                - Bicycle toy: 1 kg CO2e
+                
+                Environmental Issues:
+                - Plastic waste accumulation (90% of toys)
+                - Trend-driven consumption (movie tie-ins)
+                - E-waste from electronic toys and consoles
+                - Toxic materials (phthalates, BPA)
+                - Difficult disassembly for recycling
+                
+                Sustainable Alternatives:
+                - Wooden toys from sustainable sources
+                - Second-hand and toy libraries
+                - Durable, timeless designs
+                - LEGO take-back programs
+                - Games-as-a-service (digital instead of physical)
+                - Sports equipment made from recycled materials
+                """,
+                metadata={"category": "toys_games", "impact_level": "moderate", "plastic_dominant": True}
+            ),
+            
+            # Category 10: Paper Products & Books
+            Document(
+                text="""
+                Paper Products and Publishing Environmental Impact
+                
+                Paper production accounts for 26% of landfill waste globally.
+                Deforestation for virgin pulp affects biodiversity and carbon sinks.
+                Recycled paper uses 70% less energy than virgin paper production.
+                Printing and transportation add significant emissions.
+                Digital alternatives can reduce carbon footprint by 90%.
+                
+                Product Examples: books, notebooks, paper, cardboard packaging, magazines, newspapers, tissue, office supplies
+                
+                Carbon Footprint Data:
+                - Paperback book: 1 kg CO2e
+                - Notebook (100 pages): 500g CO2e
+                - Cardboard box: 300g CO2e
+                - Magazine: 200g CO2e
+                - Tissue box: 150g CO2e
+                - Office paper (ream): 5 kg CO2e
+                
+                Environmental Issues:
+                - Deforestation (42% of wood harvest for paper)
+                - Energy-intensive pulping and bleaching
+                - Chemical pollution from paper mills
+                - Landfill waste (recyclable but often discarded)
+                - Ink production environmental impact
+                
+                Sustainable Alternatives:
+                - Recycled paper (70% less energy)
+                - Digital books and documents (e-readers)
+                - FSC-certified paper products
+                - Reduced printing (cloud storage)
+                - Reusable notebooks (Rocketbook)
+                - Hemp and bamboo paper
+                """,
+                metadata={"category": "paper_products", "impact_level": "moderate", "deforestation_link": True}
+            ),
+            
+            # Category 11: Beverages
+            Document(
+                text="""
+                Beverage Industry Environmental Impact
+                
+                Beverage packaging is major waste source globally.
+                Aluminum cans: 170g CO2e each to produce.
+                Glass bottles are heavy, requiring more transport fuel.
+                Coffee pods generate 11 billion units of waste annually.
+                Single-use plastic bottles dominate the market.
+                
+                Product Examples: coffee, tea, soda, beer, wine, juice, bottled water, energy drinks, sports drinks
+                
+                Carbon Footprint Data:
+                - Aluminum can: 170g CO2e
+                - Glass bottle: 200g CO2e
+                - Plastic bottle: 82g CO2e
+                - Coffee pod (single): 50g CO2e
+                - Tetra Pak carton: 100g CO2e
+                - Beer bottle: 300g CO2e
+                
+                Environmental Issues:
+                - Packaging waste (major contributor)
+                - Water extraction affecting local communities
+                - Transportation emissions (heavy liquids)
+                - Single-use culture dominance
+                - Coffee pod waste (non-recyclable)
+                
+                Sustainable Alternatives:
+                - Tap water in reusable bottles
+                - Bulk beverages (kegs, large containers)
+                - Recyclable aluminum (infinitely recyclable)
+                - Loose-leaf tea instead of pods
+                - Local products (reduced transport)
+                - SodaStream for homemade carbonation
+                """,
+                metadata={"category": "beverages", "impact_level": "moderate", "packaging_intensive": True}
+            ),
+            
+            # Category 12: Healthcare & Medical
+            Document(
+                text="""
+                Healthcare and Medical Products Environmental Impact
+                
+                Healthcare sector contributes 4.4% of global greenhouse gas emissions.
+                Pharmaceutical production is highly chemical and energy-intensive.
+                Single-use medical plastics create massive waste streams.
+                Proper disposal critical as pharmaceuticals pollute water systems.
+                Blister packs and medical packaging often non-recyclable.
+                
+                Product Examples: medications, pills, supplements, bandages, medical devices, prescriptions, vitamins, first aid supplies
+                
+                Carbon Footprint Data:
+                - Pharmaceutical production (per kg): 50 kg CO2e
+                - Blister pack medication: 100g CO2e
+                - Supplement bottle: 200g CO2e
+                - Medical device (average): 5 kg CO2e
+                - Bandage box: 50g CO2e
+                
+                Environmental Issues:
+                - Pharmaceutical pollution in waterways
+                - Single-use medical plastic waste
+                - Chemical-intensive production
+                - Antimicrobial resistance from improper disposal
+                - Non-recyclable packaging (blister packs)
+                
+                Sustainable Alternatives:
+                - Proper medication disposal programs
+                - Reusable medical equipment where safe
+                - Bulk medication packaging
+                - Generic medications (less packaging)
+                - Biodegradable bandages
+                - Pharmaceutical take-back programs
+                """,
+                metadata={"category": "healthcare", "impact_level": "moderate", "chemical_intensive": True}
+            ),
+            
+            # Category 13: Energy Products
+            Document(
+                text="""
+                Energy Products and Batteries Environmental Impact
+                
+                Battery production involves rare earth mining with massive environmental footprint.
+                Lithium extraction is extremely water-intensive (500,000L per ton).
+                E-waste from chargers and power banks accumulates rapidly.
+                LED bulbs save 75% energy compared to incandescent but contain electronics.
+                Solar panels offset their carbon footprint in 2-4 years of operation.
+                
+                Product Examples: batteries, chargers, light bulbs, solar panels, power banks, extension cords, LED lights
+                
+                Carbon Footprint Data:
+                - AA battery (alkaline): 20g CO2e
+                - Lithium-ion battery (phone): 50g CO2e
+                - Phone charger: 100g CO2e
+                - LED bulb: 50g CO2e
+                - Solar panel (per kW): 500 kg CO2e (offset in 2-4 years)
+                - Power bank: 200g CO2e
+                
+                Environmental Issues:
+                - Rare earth mining (cobalt, lithium)
+                - Water-intensive lithium extraction
+                - E-waste from disposable chargers
+                - Toxic materials in batteries
+                - Energy use in production
+                
+                Sustainable Alternatives:
+                - Rechargeable batteries (500+ cycles)
+                - Solar chargers for small devices
+                - LED bulbs (10x longer lasting)
+                - Energy efficient appliances
+                - Solar panels for home energy
+                - Battery recycling programs
+                """,
+                metadata={"category": "energy_products", "impact_level": "high", "mining_intensive": True}
+            ),
+            
+            # Category 14: Pet Products
+            Document(
+                text="""
+                Pet Products Industry Environmental Impact
+                
+                Pet food industry generates 64 million tons CO2e per year globally.
+                Meat-based pet food has similar footprint to meat for humans.
+                Plastic pet toys are non-recyclable and short-lived.
+                Cat litter production involves destructive clay mining.
+                Pet waste contributes to methane emissions in landfills.
+                
+                Product Examples: dog food, cat food, pet toys, cat litter, pet beds, collars, leashes, treats
+                
+                Carbon Footprint Data:
+                - Dry dog food (10kg): 20 kg CO2e
+                - Wet cat food (12 cans): 10 kg CO2e
+                - Plastic pet toy: 300g CO2e
+                - Clay cat litter (20kg): 15 kg CO2e
+                - Pet bed: 5 kg CO2e
+                - Dog leash: 500g CO2e
+                
+                Environmental Issues:
+                - Meat-based food = high carbon footprint
+                - Plastic toy waste
+                - Clay mining for litter
+                - Pet waste methane emissions
+                - Overfishing for fish-based food
+                
+                Sustainable Alternatives:
+                - Insect-based or plant-based pet food
+                - Biodegradable poop bags
+                - Natural wood or paper cat litter
+                - Durable, natural material toys
+                - Composting pet waste properly
+                - Recycled material pet beds
+                """,
+                metadata={"category": "pet_products", "impact_level": "moderate", "meat_based": True}
+            ),
+            
+            # Category 15: Construction Materials
+            Document(
+                text="""
+                Construction Materials Environmental Impact
+                
+                Cement production alone accounts for 8% of global CO2 emissions.
+                Steel production contributes 7% of global greenhouse gas emissions.
+                Deforestation for lumber affects biodiversity and carbon sequestration.
+                Paint releases volatile organic compounds (VOCs) harming air quality.
+                Construction and demolition waste makes up 40% of landfill content.
+                
+                Product Examples: cement, concrete, steel beams, lumber, paint, insulation, drywall, tiles, bricks
+                
+                Carbon Footprint Data:
+                - Cement (per ton): 900 kg CO2e
+                - Concrete (per ton): 410 kg CO2e
+                - Steel (per ton): 1,850 kg CO2e
+                - Lumber (per m³): 100 kg CO2e
+                - Paint (per gallon): 5 kg CO2e
+                - Insulation (per m²): 10 kg CO2e
+                
+                Environmental Issues:
+                - Cement calcination releases massive CO2
+                - Steel blast furnaces use coal
+                - Illegal logging and deforestation
+                - Paint VOC off-gassing
+                - Construction waste (40% of landfills)
+                - Mining for aggregates
+                
+                Sustainable Alternatives:
+                - Green cement (fly ash, slag cement)
+                - Recycled steel (60% less emissions)
+                - Certified sustainable lumber (FSC)
+                - Low-VOC and zero-VOC paints
+                - Recycled insulation materials
+                - Modular construction (less waste)
+                - Hempcrete and bamboo materials
+                """,
+                metadata={"category": "construction", "impact_level": "critical", "industrial_scale": True}
+            )
+        ]
+        
+        return knowledge_docs
+    
+    def retrieve_knowledge(self, product_name: str, top_k: int = 2) -> str:
+        """Retrieve relevant environmental knowledge using semantic search"""
+        
+        if not self.index:
+            return "Knowledge base not available"
+        
+        # Create query engine
+        query_engine = self.index.as_query_engine(
+            similarity_top_k=top_k,
+            response_mode="compact"
+        )
+        
+        # Query for product-specific knowledge
+        query = f"Environmental impact, carbon footprint, issues, and sustainable alternatives for: {product_name}"
+        
+        response = query_engine.query(query)
+        
+        return str(response)
+    
+    def add_document(self, text: str, metadata: Dict = None):
+        """Add new environmental document to index"""
+        doc = Document(text=text, metadata=metadata or {})
+        self.index.insert(doc)
+        self.index.storage_context.persist()
+        print(f"✅ Added new document to LlamaIndex")

requirements.txt

@@ -2,4 +2,7 @@ gradio
 anthropic
 requests
 Pillow
-python-dotenv
+python-dotenv
+llama-index
+llama-index-llms-anthropic
+llama-index-embeddings-huggingface