import os import logging from typing import Dict, List, Optional from functools import lru_cache import re import gradio as gr try: from vector_db import VectorDatabase except ImportError: print("Error: Could not import VectorDatabase from vector_db.py.") print("Please ensure vector_db.py exists in the same directory and is correctly defined.") exit(1) try: from langchain_openai import ChatOpenAI except ImportError: print("Error: langchain-openai not found. Please install it: pip install langchain-openai") exit(1) from langchain.prompts import PromptTemplate from langchain.chains import LLMChain # Suppress warnings import warnings warnings.filterwarnings("ignore", category=SyntaxWarning) warnings.filterwarnings("ignore", category=UserWarning, message=".*You are using gradio version.*") warnings.filterwarnings("ignore", category=DeprecationWarning) # Enhanced logging logging.basicConfig( level=logging.INFO, format='%(asctime)s - %(levelname)s - [%(filename)s:%(lineno)d] - %(message)s' ) # --- RAGSystem Class (Processing Logic - kept intact as requested) --- class RAGSystem: def __init__(self, vector_db: Optional[VectorDatabase] = None): logging.info("Initializing RAGSystem") self.vector_db = vector_db if vector_db else VectorDatabase() self.llm = None self.chain = None self.prompt_template_str = """You are a legal assistant specializing in tenant rights and landlord-tenant laws. Your goal is to provide accurate, detailed, and helpful answers grounded in legal authority. Use the provided statutes as the primary source when available. If no relevant statutes are found in the context, rely on your general knowledge to provide a pertinent and practical response, clearly indicating when you are doing so and prioritizing state-specific information over federal laws for state-specific queries. Instructions: * Use the context and statutes as the primary basis for your answer when available. * For state-specific queries, prioritize statutes or legal principles from the specified state over federal laws. * Cite relevant statutes (e.g., (AS § 34.03.220(a)(2))) explicitly in your answer when applicable. * If multiple statutes apply, list all relevant ones. * If no specific statute is found in the context, state this clearly (e.g., 'No specific statute was found in the provided context'), then provide a general answer based on common legal principles or practices, marked as such. * Include practical examples or scenarios to enhance clarity and usefulness. * Use bullet points or numbered lists for readability when appropriate. * Maintain a professional and neutral tone. Question: {query} State: {state} Statutes from context: {statutes} Context information: --- START CONTEXT --- {context} --- END CONCONTEXT --- Answer:""" self.prompt_template = PromptTemplate( input_variables=["query", "context", "state", "statutes"], template=self.prompt_template_str ) logging.info("RAGSystem initialized.") def extract_statutes(self, text: str) -> str: statute_pattern = r'\b(?:[A-Z]{2,}\.?\s+(?:Rev\.\s+)?Stat\.?|Code(?:\s+Ann\.?)?|Ann\.?\s+Laws|Statutes|CCP|USC|ILCS|Civ\.\s+Code|Penal\s+Code|Gen\.\s+Oblig\.\s+Law|R\.?S\.?|P\.?L\.?)\s+§\s*[\d\-]+(?:\.\d+)?(?:[\(\w\.\)]+)?|Title\s+\d+\s+USC\s+§\s*\d+(?:-\d+)?\b' statutes = re.findall(statute_pattern, text, re.IGNORECASE) valid_statutes = [] for statute in statutes: statute = statute.strip() if '§' in statute and any(char.isdigit() for char in statute): if not re.match(r'^\([\w\.]+\)$', statute) and 'http' not in statute: if len(statute) > 5: valid_statutes.append(statute) if valid_statutes: seen = set() unique_statutes = [s for s in valid_statutes if not (s.rstrip('.,;') in seen or seen.add(s.rstrip('.,;')))] logging.info(f"Extracted {len(unique_statutes)} unique statutes.") return "\n".join(f"- {s}" for s in unique_statutes) logging.info("No statutes found matching the pattern in the context.") return "No specific statutes found in the provided context." @lru_cache(maxsize=50) def process_query_cached(self, query: str, state: str, openai_api_key: str, n_results: int = 5) -> Dict[str, any]: logging.info(f"Processing query (cache key: '{query}'|'{state}'|key_hidden) with n_results={n_results}") if not state or state == "Select a state..." or "Error" in state: logging.warning("No valid state provided for query.") return {"answer": "
Error: Please select a valid state.
", "context_used": "N/A - Invalid Input"} if not query or not query.strip(): logging.warning("No query provided.") return {"answer": "
Error: Please enter your question.
", "context_used": "N/A - Invalid Input"} if not openai_api_key or not openai_api_key.strip() or not openai_api_key.startswith("sk-"): logging.warning("No valid OpenAI API key provided.") return {"answer": "
Error: Please provide a valid OpenAI API key (starting with 'sk-'). Get one from OpenAI.
", "context_used": "N/A - Invalid Input"} try: logging.info("Initializing temporary LLM and Chain for this query...") temp_llm = ChatOpenAI( temperature=0.2, openai_api_key=openai_api_key, model_name="gpt-3.5-turbo", max_tokens=1500, request_timeout=45 ) temp_chain = LLMChain(llm=temp_llm, prompt=self.prompt_template) logging.info("Temporary LLM and Chain initialized successfully.") except Exception as e: logging.error(f"LLM Initialization failed: {str(e)}", exc_info=True) error_msg = "Error: Failed to initialize AI model. Please check your network connection and API key validity." if "authentication" in str(e).lower(): error_msg = "Error: OpenAI API Key is invalid or expired. Please check your key." return {"answer": f"
{error_msg}
Details: {str(e)}
", "context_used": "N/A - LLM Init Failed"} context = "No relevant context found." statutes_from_context = "Statute retrieval skipped due to context issues." try: logging.info(f"Querying Vector DB for query: '{query[:50]}...' in state '{state}'...") results = self.vector_db.query(query, state=state, n_results=n_results) logging.info(f"Vector DB query successful for state '{state}'. Processing results...") context_parts = [] doc_results = results.get("document_results", {}) docs = doc_results.get("documents", [[]])[0] metadatas = doc_results.get("metadatas", [[]])[0] if docs and metadatas and len(docs) == len(metadatas): logging.info(f"Found {len(docs)} document chunks.") for i, doc_content in enumerate(docs): metadata = metadatas[i] state_label = metadata.get('state', 'Unknown State') chunk_id = metadata.get('chunk_id', 'N/A') context_parts.append(f"**Source: Document Chunk {chunk_id} (State: {state_label})**\n{doc_content}") state_results_data = results.get("state_results", {}) state_docs = state_results_data.get("documents", [[]])[0] state_metadatas = state_results_data.get("metadatas", [[]])[0] if state_docs and state_metadatas and len(state_docs) == len(state_metadatas): logging.info(f"Found {len(state_docs)} state summary documents.") for i, state_doc_content in enumerate(state_docs): metadata = state_metadatas[i] state_label = metadata.get('state', state) context_parts.append(f"**Source: State Summary (State: {state_label})**\n{state_doc_content}") if context_parts: context = "\n\n---\n\n".join(context_parts) logging.info(f"Constructed context with {len(context_parts)} parts. Length: {len(context)} chars.") try: statutes_from_context = self.extract_statutes(context) except Exception as e: logging.error(f"Error extracting statutes: {e}", exc_info=True) statutes_from_context = "Error extracting statutes from context." else: logging.warning("No relevant context parts found from vector DB query.") context = "No relevant context could be retrieved from the knowledge base for this query and state. The AI will answer from its general knowledge." statutes_from_context = "No specific statutes found as no context was retrieved." except Exception as e: logging.error(f"Vector DB query/context processing failed: {str(e)}", exc_info=True) context = f"Warning: Error retrieving documents from the knowledge base ({str(e)}). The AI will attempt to answer from its general knowledge, which may be less specific or accurate." statutes_from_context = "Statute retrieval skipped due to error retrieving context." try: logging.info("Invoking LLMChain with constructed input...") llm_input = {"query": query, "context": context, "state": state, "statutes": statutes_from_context} answer_dict = temp_chain.invoke(llm_input) answer_text = answer_dict.get('text', '').strip() if not answer_text: logging.warning("LLM returned an empty answer.") answer_text = "
The AI model returned an empty response. This might be due to the query, context limitations, or temporary issues. Please try rephrasing your question or try again later.
" else: logging.info("LLM generated answer successfully.") return {"answer": answer_text, "context_used": context} except Exception as e: logging.error(f"LLM processing failed: {str(e)}", exc_info=True) error_message = "Error: AI answer generation failed." details = f"Details: {str(e)}" if "authentication" in str(e).lower(): error_message = "Error: Authentication failed. Please double-check your OpenAI API key." details = "" elif "rate limit" in str(e).lower(): error_message = "Error: You've exceeded your OpenAI API rate limit or quota. Please check your usage and plan limits, or wait and try again." details = "" elif "context length" in str(e).lower(): error_message = "Error: The request was too long for the AI model. This can happen with very complex questions or extensive retrieved context." details = "Try simplifying your question or asking about a more specific aspect." elif "timeout" in str(e).lower(): error_message = "Error: The request to the AI model timed out. The service might be busy." details = "Please try again in a few moments." formatted_error = f"
{error_message}
" if details: formatted_error += f"
{details}
" return {"answer": formatted_error, "context_used": context} def process_query(self, query: str, state: str, openai_api_key: str, n_results: int = 5) -> Dict[str, any]: return self.process_query_cached(query.strip(), state, openai_api_key.strip(), n_results) def get_states(self) -> List[str]: try: states = self.vector_db.get_states() if not states: logging.warning("No states retrieved from vector_db. Returning empty list.") return [] valid_states = sorted(list(set(s for s in states if s and isinstance(s, str) and s != "Select a state..."))) logging.info(f"Retrieved {len(valid_states)} unique, valid states from VectorDatabase.") return valid_states except Exception as e: logging.error(f"Failed to get states from VectorDatabase: {str(e)}", exc_info=True) return ["Error: Could not load states"] def load_pdf(self, pdf_path: str) -> int: if not os.path.exists(pdf_path): logging.error(f"PDF file not found at path: {pdf_path}") raise FileNotFoundError(f"PDF file not found: {pdf_path}") try: logging.info(f"Attempting to load/verify data from PDF: {pdf_path}") num_states_processed = self.vector_db.process_and_load_pdf(pdf_path) doc_count = self.vector_db.document_collection.count() state_count = self.vector_db.state_collection.count() total_items = doc_count + state_count if total_items > 0: logging.info(f"Vector DB contains {total_items} items ({doc_count} docs, {state_count} states). PDF processed or data already existed.") current_states = self.get_states() return len(current_states) if current_states and "Error" not in current_states[0] else 0 else: logging.warning(f"PDF processing completed, but the vector database appears empty. Check PDF content and processing logs.") return 0 except Exception as e: logging.error(f"Failed to load or process PDF '{pdf_path}': {str(e)}", exc_info=True) raise RuntimeError(f"Failed to process PDF '{pdf_path}': {e}") from e # --- GRADIO INTERFACE (Complete Overhaul for Cohesion, Legibility, and Advanced Look) --- def gradio_interface(self): def query_interface_wrapper(api_key: str, query: str, state: str) -> str: # Basic client-side validation for immediate feedback if not api_key or not api_key.strip() or not api_key.startswith("sk-"): return "
⚠️Please provide a valid OpenAI API key (starting with 'sk-'). Get one here.
" if not state or state == "Select a state..." or "Error" in state: return "
⚠️Please select a valid state from the dropdown.
" if not query or not query.strip(): return "
⚠️Please enter your question in the text box.
" # Call the core processing logic result = self.process_query(query=query, state=state, openai_api_key=api_key) answer = result.get("answer", "
⚠️An unexpected error occurred.
") # Check if the answer already contains an error message (from deeper within process_query) if "
" in answer: return answer # Return the pre-formatted error message directly else: # Format the successful response with the new UI structure formatted_response = f"
📜Response for {state}
{answer}" return formatted_response try: available_states_list = self.get_states() dropdown_choices = ["Select a state..."] + (available_states_list if available_states_list and "Error" not in available_states_list[0] else ["Error: States unavailable"]) initial_value = dropdown_choices[0] except Exception: # Catch-all for safety dropdown_choices = ["Error: Critical failure loading states"] initial_value = dropdown_choices[0] # Define example queries, filtering based on available states example_queries_base = [ ["What are the rules for security deposit returns?", "California"], ["Can a landlord enter my apartment without notice?", "New York"], ["My landlord hasn't made necessary repairs. What can I do?", "Texas"], ] example_queries = [] if available_states_list and "Error" not in available_states_list[0] and len(available_states_list) > 0: loaded_states_set = set(available_states_list) # Filter for examples whose state is in the loaded states example_queries = [ex for ex in example_queries_base if ex[1] in loaded_states_set] # Add a generic example if no specific state examples match or if list is empty if not example_queries: example_queries.append(["What basic rights do tenants have?", available_states_list[0] if available_states_list else "California"]) else: # Fallback if states list is problematic example_queries.append(["What basic rights do tenants have?", "California"]) # --- Custom CSS for "Legal Noir" Theme (Dark Mode First) --- custom_css = """ @import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:wght@700;800;900&display=swap'); :root { /* Dark Theme Colors (Default: Legal Noir) */ --app-bg-dark: #12121A; /* Deep, muted black/purple */ --header-bg-dark: #0A0A10; /* Even darker header background */ --main-content-bg-dark: #1E1E2A; /* Slightly lighter surface for main content */ --text-primary-dark: #EAEAF0; /* Crisp off-white for main text */ --text-secondary-dark: #A0A0B0; /* Muted light gray for secondary text */ --accent-main-dark: #FFC107; /* Vibrant Gold/Amber for primary accents */ --accent-hover-dark: #E0A800; /* Darker gold on hover */ --border-dark: #333345; /* Subtle dark border */ --shadow-dark: 0 1rem 3rem rgba(0,0,0,0.6); /* Deep, soft shadow for rich contrast */ --focus-ring-dark: rgba(255, 193, 7, 0.4); /* Gold focus ring */ --error-bg-dark: #4D001A; /* Deep red for errors */ --error-text-dark: #FFB3C2; /* Light pink for error text */ --error-border-dark: #990026; /* Light Theme Colors (Alternative: Legal Lumen) */ --app-bg-light: #F8F9FA; /* Soft light gray background */ --header-bg-light: #E9ECEF; /* Lighter header background */ --main-content-bg-light: #FFFFFF; /* Pure white for main content */ --text-primary-light: #212529; /* Dark charcoal */ --text-secondary-light: #6C757D; /* Muted gray */ --accent-main-light: #007bff; /* Professional blue */ --accent-hover-light: #0056b3; /* Darker blue on hover */ --border-light: #DEE2E6; /* Light border */ --shadow-light: 0 0.8rem 2.5rem rgba(0,0,0,0.15); /* Soft shadow */ --focus-ring-light: rgba(0, 123, 255, 0.3); --error-bg-light: #F8D7DA; --error-text-light: #721C24; --error-border-light: #F5C6CB; /* General Styling Variables */ --font-family-main: 'Inter', sans-serif; --font-family-header: 'Playfair Display', serif; /* Elegant serif for titles */ --radius-sm: 8px; --radius-md: 12px; --radius-lg: 24px; /* Larger radius for a premium, soft feel */ --transition-speed: 0.5s ease-in-out; /* Slower, smoother transitions */ --padding-xl: 4.5rem; /* Extra large padding for spaciousness */ --padding-lg: 3.5rem; --padding-md: 2.5rem; --padding-sm: 1.8rem; } /* Apply theme based on system preference */ body, .gradio-container { font-family: var(--font-family-main) !important; background: var(--app-bg-dark) !important; /* Default to dark theme */ color: var(--text-primary-dark) !important; margin: 0; padding: 0; min-height: 100vh; font-size: 16px; line-height: 1.75; /* Enhanced line spacing for legibility */ -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; transition: background var(--transition-speed), color var(--transition-speed); } * { box-sizing: border-box; } @media (prefers-color-scheme: light) { body, .gradio-container { background: var(--app-bg-light) !important; color: var(--text-primary-light) !important; } } /* Global container for content alignment and padding */ .gradio-container > .flex.flex-col { max-width: 1080px; /* Even wider for a more expansive dashboard feel */ margin: 0 auto !important; padding: 0 !important; /* Managed by custom classes */ gap: 0 !important; transition: padding var(--transition-speed); } /* Header styling: dynamic, centralized, and visually connecting */ .app-header-wrapper { background: var(--header-bg-dark); /* Solid color for header, based on theme */ color: var(--text-primary-dark) !important; padding: var(--padding-xl) var(--padding-lg) !important; text-align: center !important; border-bottom-left-radius: var(--radius-lg); border-bottom-right-radius: var(--radius-lg); box-shadow: var(--shadow-dark); position: relative; overflow: hidden; z-index: 10; transition: background var(--transition-speed), box-shadow var(--transition-speed); /* NEW: Blend with main content by overlapping its own radius */ margin-bottom: calc(-1 * var(--radius-lg)); } @media (prefers-color-scheme: light) { .app-header-wrapper { background: var(--header-bg-light); color: var(--text-primary-light) !important; box-shadow: var(--shadow-light); } } .app-header { display: flex; flex-direction: column; align-items: center; position: relative; z-index: 1; } .app-header-logo { font-size: 5.5rem; /* Even larger icon for maximum impact */ margin-bottom: 1.5rem; line-height: 1; filter: drop-shadow(0 0 15px var(--accent-main-dark)); /* Stronger glow effect for icon */ transform: translateY(-40px); opacity: 0; /* Initial state for animation */ animation: fadeInSlideDown 1.5s ease-out forwards; animation-delay: 0.3s; transition: filter var(--transition-speed); } @media (prefers-color-scheme: light) { .app-header-logo { filter: drop-shadow(0 0 10px var(--accent-main-light)); } } .app-header-title { font-family: var(--font-family-header) !important; font-size: 4.2rem; /* The main title: massive, bold, and dynamic */ font-weight: 900; /* Extra, extra bold */ margin: 0 0 1.2rem 0; letter-spacing: -0.07em; /* Tighter for a strong presence */ text-shadow: 0 8px 16px rgba(0,0,0,0.5); /* Deepest shadow for depth */ transform: translateY(-40px); opacity: 0; animation: fadeInSlideDown 1.5s ease-out forwards; animation-delay: 0.6s; transition: text-shadow var(--transition-speed), color var(--transition-speed); } @media (prefers-color-scheme: light) { .app-header-title { text-shadow: 0 6px 12px rgba(0,0,0,0.25); } } .app-header-tagline { font-family: var(--font-family-main) !important; font-size: 1.6rem; /* Larger, more inviting tagline */ font-weight: 300; opacity: 0.9; max-width: 900px; transform: translateY(-40px); opacity: 0; animation: fadeInSlideDown 1.5s ease-out forwards; animation-delay: 0.9s; transition: opacity var(--transition-speed); } /* Keyframe animations for header elements */ @keyframes fadeInSlideDown { from { opacity: 0; transform: translateY(-40px); } to { opacity: 1; transform: translateY(0); } } /* Main content area: The single, unified block containing all core functionality */ .main-content-area { background: var(--main-content-bg-dark) !important; border-radius: var(--radius-lg); box-shadow: var(--shadow-dark); border: 1px solid var(--border-dark) !important; /* Match header's bottom radius on its top */ border-top-left-radius: var(--radius-lg); border-top-right-radius: var(--radius-lg); margin: 0 auto 5rem auto; /* General spacing to the footer */ /* New: compensate for header's margin-bottom overlap */ padding-top: calc(var(--padding-xl) + var(--radius-lg)); /* Add back the space lost by header's overlap */ padding-left: var(--padding-xl) !important; padding-right: var(--padding-xl) !important; padding-bottom: var(--padding-lg) !important; /* Bottom padding for the whole area */ z-index: 1; /* Ensure it's behind header, but visually seamless */ position: relative; transition: background var(--transition-speed), border-color var(--transition-speed), box-shadow var(--transition-speed); } @media (prefers-color-scheme: light) { .main-content-area { background: var(--main-content-bg-light) !important; box-shadow: var(--shadow-light); border: 1px solid var(--border-light) !important; } } /* Section titles within the unified main content area */ .section-title { /* For 'Know Your Rights' */ font-family: var(--font-family-header) !important; font-size: 2.5rem !important; /* Larger section titles */ font-weight: 800 !important; /* Extra bold */ color: var(--text-primary-dark) !important; text-align: center !important; margin: 0 auto 3.5rem auto !important; /* More space below */ padding-bottom: 1.5rem !important; border-bottom: 2px solid var(--border-dark) !important; width: 100%; transition: color var(--transition-speed), border-color var(--transition-speed); } .sub-section-title { /* For 'Ask Your Question', 'Answer', 'Explore Sample Questions' */ font-family: var(--font-family-header) !important; font-size: 2rem !important; /* Slightly smaller for sub-sections */ font-weight: 700 !important; color: var(--text-primary-dark) !important; text-align: center !important; margin-top: 3rem !important; /* Tighter vertical spacing for more cohesive display */ margin-bottom: 1.5rem !important; /* Tighter coupling to content */ transition: color var(--transition-speed); } @media (prefers-color-scheme: light) { .section-title, .sub-section-title { color: var(--text-primary-light) !important; border-bottom-color: var(--border-light) !important; } } /* General text styling within main content: highly legible */ .main-content-area p { font-size: 1.15rem; /* Larger, more readable body text */ line-height: 1.8; /* Generous line height for comfort */ color: var(--text-secondary-dark); margin-bottom: 1.5rem; transition: color var(--transition-speed); } .main-content-area a { color: var(--accent-main-dark); text-decoration: none; font-weight: 500; transition: color var(--transition-speed), text-decoration var(--transition-speed); } .main-content-area a:hover { color: var(--accent-hover-dark); text-decoration: underline; } .main-content-area strong { font-weight: 700; color: var(--text-primary-dark); transition: color var(--transition-speed); } @media (prefers-color-scheme: light) { .main-content-area p { color: var(--text-secondary-light); } .main-content-area a { color: var(--accent-main-light); } .main-content-area a:hover { color: var(--accent-hover-light); } .main-content-area strong { color: var(--text-primary-light); } } /* Horizontal rule for visual separation within the main block */ .section-divider { border: none; border-top: 1px solid var(--border-dark); /* Subtle, but present for structure */ margin: 4rem 0; /* Adjusted for better overall flow */ transition: border-color var(--transition-speed); } @media (prefers-color-scheme: light) { .section-divider { border-top: 1px solid var(--border-light); } } /* Input field groups and layout: spacious and clear */ .input-field-group { margin-bottom: 2rem; } /* Adjusted for tighter coupling */ .input-row { display: flex; gap: 3rem; /* Still generous space between inputs */ flex-wrap: wrap; margin-bottom: 3rem; /* Adjusted for tighter coupling to buttons */ } .input-field { flex: 1; min-width: 350px; /* Wider min-width for larger inputs */ } /* Input labels and info text: prominent and clear */ .gradio-input-label { font-size: 1.2rem !important; /* Larger, more prominent labels */ font-weight: 500 !important; color: var(--text-primary-dark) !important; margin-bottom: 1rem !important; display: block !important; transition: color var(--transition-speed); } .gradio-input-info { font-size: 1rem !important; color: var(--text-secondary-dark) !important; margin-top: 0.6rem; transition: color var(--transition-speed); } @media (prefers-color-scheme: light) { .gradio-input-label { color: var(--text-primary-light) !important; } .gradio-input-info { color: var(--text-secondary-light) !important; } } /* Textbox, Dropdown, Password input styling: larger, more refined */ .gradio-textbox textarea, .gradio-dropdown select, .gradio-textbox input[type=password] { border: 2px solid var(--border-dark) !important; /* Thicker border for visibility */ border-radius: var(--radius-md) !important; padding: 1.3rem 1.6rem !important; /* Even more padding */ font-size: 1.15rem !important; /* Larger font size */ background: var(--main-content-bg-dark) !important; color: var(--text-primary-dark) !important; width: 100% !important; box-shadow: inset 0 1px 3px rgba(0,0,0,0.3); /* Inner shadow for depth */ transition: border-color var(--transition-speed), box-shadow var(--transition-speed), background var(--transition-speed), color var(--transition-speed); } .gradio-textbox textarea { min-height: 180px; } /* Taller textarea */ .gradio-textbox textarea::placeholder, .gradio-textbox input[type=password]::placeholder { color: #808090 !important; } /* Improved placeholder color */ .gradio-textbox textarea:focus, .gradio-dropdown select:focus, .gradio-textbox input[type=password]:focus { border-color: var(--accent-main-dark) !important; box-shadow: 0 0 0 6px var(--focus-ring-dark) !important, inset 0 1px 3px rgba(0,0,0,0.4); /* Stronger focus ring and inner shadow */ outline: none !important; } @media (prefers-color-scheme: light) { .gradio-textbox textarea, .gradio-dropdown select, .gradio-textbox input[type=password] { border: 2px solid var(--border-light) !important; background: var(--main-content-bg-light) !important; color: var(--text-primary-light) !important; box-shadow: inset 0 1px 3px rgba(0,0,0,0.1); } .gradio-textbox textarea::placeholder, .gradio-textbox input[type=password]::placeholder { color: #A0AEC0 !important; } .gradio-textbox textarea:focus, .gradio-dropdown select:focus, .gradio-textbox input[type=password]:focus { border-color: var(--accent-main-light) !important; box-shadow: 0 0 0 6px var(--focus-ring-light) !important, inset 0 1px 3px rgba(0,0,0,0.2); } } /* Custom dropdown arrow */ .gradio-dropdown select { appearance: none; -webkit-appearance: none; -moz-appearance: none; background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2020%2020%22%20fill%3D%22%23A0A0B0%22%3E%3Cpath%20fill-rule%3D%22evenodd%22%20d%3D%22M5.293%207.293a1%201%200%20011.414%200L10%2010.586l3.293-3.293a1%201%200%20111.414%201.414l-4%204a1%201%200%2001-1.414%200l-4-4a1%201%200%20010-1.414z%22%20clip-rule%3D%22evenodd%22%2F%3E%3C%2Fsvg%3E'); background-repeat: no-repeat; background-position: right 1.8rem center; background-size: 1.4em; /* Larger arrow */ padding-right: 5rem !important; } @media (prefers-color-scheme: light) { .gradio-dropdown select { background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2020%2020%22%20fill%3D%22%236C757D%22%3E%3Cpath%20fill-rule%3D%22evenodd%22%20d%3D%22M5.293%207.293a1%201%200%20011.414%200L10%2010.586l3.293-3.293a1%201%200%20111.414%201.414l-4%204a1%201%200%2001-1.414%200l-4-4a1%201%200%20010-1.414z%22%20clip-rule%3D%22evenodd%22%2F%3E%3C%2Fsvg%3E'); } } /* Button group and styling: dynamic and clear actions */ .button-row { display: flex; gap: 2.5rem; margin-top: 2.5rem; flex-wrap: wrap; justify-content: flex-end; } .gradio-button { border-radius: var(--radius-md) !important; padding: 1.2rem 2.8rem !important; /* More padding */ font-size: 1.15rem !important; /* Larger font */ font-weight: 600 !important; /* Bolder text */ border: 1px solid transparent !important; box-shadow: 0 6px 20px rgba(0,0,0,0.35); /* Deeper shadow */ transition: all var(--transition-speed) cubic-bezier(0.0, 0.0, 0.2, 1); /* Enhanced cubic-bezier for springy feel */ } .gradio-button:hover:not(:disabled) { transform: translateY(-6px); /* More pronounced lift */ box-shadow: 0 12px 28px rgba(0,0,0,0.45) !important; } .gradio-button:active:not(:disabled) { transform: translateY(-3px); } .gradio-button:disabled { background: #3A3A50 !important; color: #6A6A80 !important; box-shadow: none !important; border-color: #4A4A60 !important; cursor: not-allowed; } /* Primary button */ .gr-button-primary { background: var(--accent-main-dark) !important; color: #12121A !important; /* Dark text on gold */ border-color: var(--accent-main-dark) !important; } .gr-button-primary:hover:not(:disabled) { background: var(--accent-hover-dark) !important; border-color: var(--accent-hover-dark) !important; } /* Secondary button */ .gr-button-secondary { background: transparent !important; color: var(--text-secondary-dark) !important; border: 2px solid var(--border-dark) !important; /* More prominent border */ box-shadow: none !important; } .gr-button-secondary:hover:not(:disabled) { background: rgba(255, 193, 7, 0.15) !important; /* Gold tint on hover */ color: var(--accent-main-dark) !important; border-color: var(--accent-main-dark) !important; } @media (prefers-color-scheme: light) { .gradio-button { box-shadow: 0 6px 20px rgba(0,0,0,0.1); } .gradio-button:hover:not(:disabled) { box-shadow: 0 12px 28px rgba(0,0,0,0.2) !important; } .gradio-button:disabled { background: #E9ECEF !important; color: #ADB5BD !important; border-color: #DEE2E6 !important; } .gr-button-primary { background: var(--accent-main-light) !important; color: #FFFFFF !important; border-color: var(--accent-main-light) !important; } .gr-button-primary:hover:not(:disabled) { background: var(--accent-hover-light) !important; border-color: var(--accent-hover-light) !important; } .gr-button-secondary { background: transparent !important; color: var(--text-secondary-light) !important; border: 2px solid var(--border-light) !important; } .gr-button-secondary:hover:not(:disabled) { background: rgba(0, 123, 255, 0.1) !important; color: var(--accent-main-light) !important; border-color: var(--accent-main-light) !important; } } /* Output Styling within the main content area */ .output-card .response-header { font-size: 1.8rem; /* Larger and clearer */ font-weight: 700; color: var(--text-primary-dark); margin: 0 0 1.5rem 0; display: flex; align-items: center; gap: 1.2rem; transition: color var(--transition-speed); } .output-card .response-icon { font-size: 2rem; /* Larger icon */ color: var(--accent-main-dark); transition: color var(--transition-speed); } .output-card .divider { border: none; border-top: 1px solid var(--border-dark); margin: 2rem 0 2.5rem 0; transition: border-color var(--transition-speed); } .output-card .output-content-wrapper { font-size: 1.15rem; /* Highly legible output text */ line-height: 1.8; color: var(--text-primary-dark); transition: color var(--transition-speed); } .output-card .output-content-wrapper p { margin-bottom: 1rem; } .output-card .output-content-wrapper ul, .output-card .output-content-wrapper ol { margin-left: 2.2rem; /* More indentation */ margin-bottom: 1.2rem; padding-left: 0; list-style-type: disc; } .output-card .output-content-wrapper ol { list-style-type: decimal; } .output-card .output-content-wrapper li { margin-bottom: 0.8rem; } .output-card .output-content-wrapper strong { font-weight: 700; } .output-card .output-content-wrapper a { color: var(--accent-main-dark); text-decoration: underline; } .output-card .output-content-wrapper a:hover { color: var(--accent-hover-dark); } @media (prefers-color-scheme: light) { .output-card .response-header { color: var(--text-primary-light); } .output-card .response-icon { color: var(--accent-main-light); } .output-card .divider { border-top: 1px solid var(--border-light); } .output-card .output-content-wrapper { color: var(--text-primary-light); } .output-card .output-content-wrapper a { color: var(--accent-main-light); } .output-card .output-content-wrapper a:hover { color: var(--accent-hover-light); } } /* Error messages: clear, prominent, and legible */ .output-card .error-message { padding: 1.8rem 2.5rem; margin-top: 2.5rem; font-size: 1.1rem; border-radius: var(--radius-md); background: var(--error-bg-dark); color: var(--error-text-dark); border: 2px solid var(--error-border-dark); display: flex; align-items: flex-start; gap: 1.5em; transition: background var(--transition-speed), color var(--transition-speed), border-color var(--transition-speed); } .output-card .error-message .error-icon { font-size: 1.8rem; line-height: 1; padding-top: 0.1em; } .output-card .error-details { font-size: 0.95rem; margin-top: 0.8rem; opacity: 0.9; word-break: break-word; } @media (prefers-color-scheme: light) { .output-card .error-message { background: var(--error-bg-light); color: var(--error-text-light); border: 2px solid var(--error-border-light); } } /* Output placeholder styling: inviting and distinct */ .output-card .placeholder { padding: 5rem 2rem; font-size: 1.3rem; /* Larger, more inviting placeholder */ border-radius: var(--radius-md); border: 3px dashed var(--border-dark); /* Thicker dashed border */ color: var(--text-secondary-dark); text-align: center; opacity: 0.8; transition: border-color var(--transition-speed), color var(--transition-speed); } @media (prefers-color-scheme: light) { .output-card .placeholder { border-color: var(--border-light); color: var(--text-secondary-light); } } /* Examples table styling: integrated within the main content block, but with clear visual identity */ /* Applied to the gr.Column that wraps the examples */ .examples-section { padding-top: 4.5rem; /* Generous top padding to separate from Answer section */ /* No background/border/shadow here, as it's part of the main-content-area */ } .examples-section .gr-examples-table { border-radius: var(--radius-md) !important; border: 1px solid var(--border-dark) !important; overflow: hidden; background: var(--main-content-bg-dark) !important; /* Ensure table matches main content background */ box-shadow: inset 0 0 10px rgba(0,0,0,0.2); /* Subtle inner shadow */ transition: border-color var(--transition-speed), background var(--transition-speed), box-shadow var(--transition-speed); } @media (prefers-color-scheme: light) { .examples-section .gr-examples-table { border: 1px solid var(--border-light) !important; background: var(--main-content-bg-light) !important; box-shadow: inset 0 0 8px rgba(0,0,0,0.05); } } .examples-section .gr-examples-table th, .examples-section .gr-examples-table td { padding: 1.1rem 1.4rem !important; /* Slightly reduced padding for tighter coupling */ font-size: 1.05rem !important; border: none !important; } .examples-section .gr-examples-table th { background: var(--app-bg-dark) !important; /* Match app background for table header */ color: var(--text-primary-dark) !important; font-weight: 600 !important; text-align: left; transition: background var(--transition-speed), color var(--transition-speed); } .examples-section .gr-examples-table td { background: var(--main-content-bg-dark) !important; color: var(--text-primary-dark) !important; border-top: 1px solid var(--border-dark) !important; cursor: pointer; transition: background var(--transition-speed), color var(--transition-speed), border-color var(--transition-speed); } .examples-section .gr-examples-table tr:hover td { background: rgba(255, 193, 7, 0.1) !important; /* Gold tint on hover */ } .examples-section .gr-examples-table tr:first-child td { border-top: none !important; } @media (prefers-color-scheme: light) { .examples-section .gr-examples-table { border: 1px solid var(--border-light) !important; background: var(--main-content-bg-light) !important; } .examples-section .gr-examples-table th { background: var(--app-bg-light) !important; color: var(--text-primary-light) !important; } .examples-section .gr-examples-table td { background: var(--main-content-bg-light) !important; color: var(--text-primary-light) !important; border-top: 1px solid var(--border-light) !important; } .examples-section .gr-examples-table tr:hover td { background: rgba(0, 123, 255, 0.08) !important; } } /* Footer styling: clean and informative, integrated at the very bottom */ .app-footer-wrapper { background: var(--header-bg-dark); /* Match header/app background for consistency */ border-top: 1px solid var(--border-dark) !important; margin-top: 5rem; /* Reduced space from last content for cohesion */ padding-top: 4rem; padding-bottom: 4rem; border-top-left-radius: var(--radius-lg); border-top-right-radius: var(--radius-lg); box-shadow: inset 0 8px 15px rgba(0,0,0,0.2); /* Inset shadow for depth */ transition: background var(--transition-speed), border-color var(--transition-speed), box-shadow var(--transition-speed); } @media (prefers-color-scheme: light) { .app-footer-wrapper { background: var(--header-bg-light); border-top: 1px solid var(--border-light) !important; box-shadow: inset 0 6px 12px rgba(0,0,0,0.1); } } .app-footer { padding: 0 var(--padding-lg) !important; text-align: center !important; display: flex; flex-direction: column; align-items: center; } .app-footer p { font-size: 1.05rem !important; color: var(--text-secondary-dark) !important; margin-bottom: 1rem; max-width: 900px; transition: color var(--transition-speed); } .app-footer a { color: var(--accent-main-dark) !important; font-weight: 500; transition: color var(--transition-speed), text-decoration var(--transition-speed); } .app-footer a:hover { color: var(--accent-hover-dark) !important; text-decoration: underline; } @media (prefers-color-scheme: light) { .app-footer-wrapper { border-top-color: var(--border-light) !important; } .app-footer p { color: var(--text-secondary-light) !important; } .app-footer a { color: var(--accent-main-light) !important; } .app-footer a:hover { color: var(--accent-hover-light) !important; } } /* Accessibility: Focus styles */ :focus-visible { outline: 5px solid var(--accent-main-dark) !important; /* Even thicker for accessibility */ outline-offset: 5px; box-shadow: 0 0 0 8px var(--focus-ring-dark) !important; border-radius: var(--radius-md) !important; /* Ensure border-radius for focus */ } @media (prefers-color-scheme: light) { :focus-visible { outline-color: var(--accent-main-light) !important; box_shadow: 0 0 0 8px var(--focus-ring-light) !important; } } .gradio-button span:focus { outline: none !important; } /* Gradio Overrides for full control - PERMANENTLY HIDE UNWANTED LABELS */ .gradio-container > .flex { gap: 0 !important; } .gradio-markdown > *:first-child { margin-top: 0; } .gradio-markdown > *:last-child { margin-bottom: 0; } .gradio-dropdown, .gradio-textbox { border: none !important; padding: 0 !important; background: transparent !important; } /* MOST AGGRESSIVE "FALSE" REMOVAL - GRADIO'S INTERNAL LABELS ARE PURE EVIL */ /* These cover various Gradio versions and nesting patterns */ .gr-box.gr-component.gradio-example { position: relative !important; } /* Needed for absolute positioning if child is default label */ .gr-examples .gradio-html div[dir="auto"].primary span { display: none !important; } /* Hides "false" directly */ .gr-examples-header { display: none !important; } /* Hides default Gradio example header */ .gr-examples .label-wrap { display: none !important; } /* Targets another common label wrapper */ .gr-label { display: none !important; } /* General label suppression for Gradio 4.0+ if it's generic */ /* Responsive Adjustments (meticulously refined) */ @media (max-width: 1024px) { .gradio-container > .flex.flex-col { max-width: 960px; padding: 0 1.5rem !important; } .app-header-title { font-size: 3.8rem; } .app-header-tagline { font-size: 1.5rem; } .app-header-wrapper { margin-bottom: calc(-1 * var(--radius-md)); /* Smaller radius for smaller screens */ } .main-content-area { padding: var(--padding-lg) var(--padding-lg) !important; border-top-left-radius: var(--radius-md); border-top-right-radius: var(--radius-md); } .main-content-area { padding-top: calc(var(--padding-lg) + var(--radius-md)); } .section-title { font-size: 2.2rem !important; margin-bottom: 3rem !important; } .sub-section-title { font-size: 1.8rem !important; margin-top: 3rem !important; margin-bottom: 1.5rem !important; } .section-divider { margin: 3.5rem 0; } .input-row { gap: 2.5rem; } .input-field { min-width: 300px; } .gradio-textbox textarea { min-height: 160px; } .output-card .response-header { font-size: 1.7rem; } .examples-section { padding-top: 4rem; } .examples-section .gr-examples-table th, .examples-section .gr-examples-table td { padding: 1.1rem 1.4rem !important; } .app-footer-wrapper { margin-top: 4rem; border-top-left-radius: var(--radius-md); border-top-right-radius: var(--radius-md); } } @media (max-width: 768px) { .gradio-container > .flex.flex-col { padding: 0 1rem !important; } .app-header-wrapper { padding: var(--padding-md) var(--padding-md) !important; border-bottom-left-radius: var(--radius-md); border-bottom-right-radius: var(--radius-md); } .app-header-logo { font-size: 4.5rem; margin-bottom: 1rem; } .app-header-title { font-size: 3.2rem; letter-spacing: -0.06em; } .app-header-tagline { font-size: 1.3rem; } .app-header-wrapper { margin-bottom: calc(-1 * var(--radius-md)); } .main-content-area { padding: var(--padding-md) var(--padding-md) !important; border-radius: var(--radius-md); border-top-left-radius: var(--radius-md); border-top-right-radius: var(--radius-md); } .main-content-area { padding-top: calc(var(--padding-md) + var(--radius-md)); } .section-title { font-size: 2rem !important; margin-bottom: 2.5rem !important; padding-bottom: 1.2rem !important; } .sub-section-title { font-size: 1.6rem !important; margin-top: 3rem !important; margin-bottom: 1.5rem !important; } .section-divider { margin: 3rem 0; } .input-row { flex-direction: column; gap: 2rem; } .input-field { min-width: 100%; } .gradio-textbox textarea { min-height: 140px; } .button-row { justify-content: stretch; gap: 1.5rem; } .gradio-button { width: 100%; padding: 1.1rem 2rem !important; font-size: 1.1rem !important; } .output-card .response-header { font-size: 1.5rem; } .output-card .response-icon { font-size: 1.7rem; } .output-card .placeholder { padding: 4rem 1.5rem; font-size: 1.2rem; } .examples-section { padding-top: 3rem; } .examples-section .gr-examples-table th, .examples-section .gr-examples-table td { padding: 1rem 1.2rem !important; font-size: 1.0rem !important; } .app-footer-wrapper { margin-top: 3.5rem; padding-top: 2.5rem; padding-bottom: 2.5rem; border-top-left-radius: var(--radius-md); border-top-right-radius: var(--radius-md); } } @media (max-width: 480px) { .gradio-container > .flex.flex-col { padding: 0 0.8rem !important; } .app-header-wrapper { padding: var(--padding-sm) 1rem !important; border-bottom-left-radius: var(--radius-sm); border-bottom-right-radius: var(--radius-sm); } .app-header-logo { font-size: 3.8rem; margin-bottom: 0.8rem; } .app-header-title { font-size: 2.8rem; } .app-header-tagline { font-size: 1.1rem; } .app-header-wrapper { margin-bottom: calc(-1 * var(--radius-sm)); } .main-content-area { padding: var(--padding-sm) 1rem !important; border-radius: var(--radius-sm); border-top-left-radius: var(--radius-sm); border-top-right-radius: var(--radius-sm); } .main-content-area { padding-top: calc(var(--padding-sm) + var(--radius-sm)); } .section-title { font-size: 1.8rem !important; margin-bottom: 2rem !important; padding-bottom: 1rem !important; } .sub-section-title { font-size: 1.4rem !important; margin-top: 2.5rem !important; margin-bottom: 1.2rem !important; } .section-divider { margin: 2.5rem 0; } .gradio-textbox textarea, .gradio-dropdown select, .gradio-textbox input[type=password] { font-size: 1.05rem !important; padding: 1rem 1.2rem !important; } .gradio-textbox textarea { min-height: 120px; } .gradio-button { padding: 1rem 1.5rem !important; font-size: 1rem !important; } .output-card .response-header { font-size: 1.4rem; } .output-card .response-icon { font-size: 1.5rem; } .output-card .placeholder { padding: 3.5rem 1rem; font-size: 1.1rem; } .examples-section { padding-top: 2.5rem; } .examples-section .gr-examples-table th, .examples-section .gr-examples-table td { padding: 0.8rem 1rem !important; font-size: 0.95rem !important; } .app-footer-wrapper { margin-top: 3rem; padding-top: 2rem; padding-bottom: 2rem; border-top-left-radius: var(--radius-sm); border-top-right-radius: var(--radius-sm); } } """ with gr.Blocks(theme=None, css=custom_css, title="Landlord-Tenant Rights Assistant") as demo: # --- Header Section: Truly dynamic and bold, with animations --- with gr.Group(elem_classes="app-header-wrapper"): gr.Markdown( """

Landlord-Tenant Rights Assistant

Empowering You with State-Specific Legal Insights

""" ) # --- Main Content Area: A single, unified block containing all core functionality --- # This is the key change for cohesion. All inner sections are now part of this one group. with gr.Group(elem_classes="main-content-area"): # "Know Your Rights" Section gr.Markdown("

Know Your Rights

") gr.Markdown( """

Navigate landlord-tenant laws with ease. Enter your OpenAI API key, select your state, and ask your question to get detailed, state-specific answers.

Don't have an API key? Get one free from OpenAI.

Disclaimer: This tool provides information only, not legal advice. For legal guidance, always consult a licensed attorney.

""" ) gr.HTML("
") # Aesthetic divider for internal separation # "Ask Your Question" Section (Input Form) gr.Markdown("

Ask Your Question

", elem_classes="sub-section-title") with gr.Column(elem_classes="input-field-group"): api_key_input = gr.Textbox( label="OpenAI API Key", type="password", placeholder="Enter your API key (e.g., sk-...)", info="Required to process your query. Securely used per request, not stored.", lines=1 ) with gr.Row(elem_classes="input-row"): with gr.Column(elem_classes="input-field", min_width="58%"): query_input = gr.Textbox( label="Your Question", placeholder="E.g., What are the rules for security deposit returns in my state?", lines=5, max_lines=10 ) with gr.Column(elem_classes="input-field", min_width="38%"): state_input = gr.Dropdown( label="Select State", choices=dropdown_choices, value=initial_value, allow_custom_value=False ) with gr.Row(elem_classes="button-row"): clear_button = gr.Button("Clear", variant="secondary", elem_classes=["gr-button-secondary"]) submit_button = gr.Button("Submit Query", variant="primary", elem_classes=["gr-button-primary"]) gr.HTML("
") # Another divider for separation # Output Section gr.Markdown("

Answer

", elem_classes="sub-section-title") output = gr.Markdown( value="
Your answer will appear here after submitting your query.
", elem_classes="output-content-wrapper output-card" # Apply these classes for styling ) # --- "Explore Sample Questions" Section: Integrated within the main unified block --- # Fixed: Wrap gr.Examples in a gr.Column to apply elem_classes correctly. with gr.Column(elem_classes="examples-section"): # Apply 'examples-section' class to this wrapper gr.Markdown("

Explore Sample Questions

", elem_classes="sub-section-title") if example_queries: gr.Examples( examples=example_queries, inputs=[query_input, state_input], examples_per_page=5, label=False, # This is crucial to hide the default "false" label ) else: gr.Markdown("
Sample questions could not be loaded.
") # --- Footer Section: Designed to blend harmoniously with header's aesthetic --- # It matches the header's background, creating a top-bottom "frame" around the main content. with gr.Group(elem_classes="app-footer-wrapper"): gr.Markdown( """

This tool is for informational purposes only and does not constitute legal advice. For legal guidance, always consult with a licensed attorney in your jurisdiction.

Developed by Nischal Subedi. Connect on LinkedIn or explore insights at Substack.

""" ) # --- Event Listeners (Logic remains identical) --- submit_button.click( fn=query_interface_wrapper, inputs=[api_key_input, query_input, state_input], outputs=output, api_name="submit_query" ) clear_button.click( fn=lambda: ( "", # Clear API key input "", # Clear query input initial_value, # Reset state dropdown to initial value "
Inputs cleared. Ready for your next question.
" # Reset output to placeholder ), inputs=[], outputs=[api_key_input, query_input, state_input, output] ) logging.info("Fully cohesive, dynamic, and legible Gradio interface created with Legal Noir theme.") return demo # --- Main Execution Block (remains untouched from original logic) --- if __name__ == "__main__": logging.info("Starting Landlord-Tenant Rights Bot application...") try: SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__)) DEFAULT_PDF_PATH = os.path.join(SCRIPT_DIR, "tenant-landlord.pdf") DEFAULT_DB_PATH = os.path.join(SCRIPT_DIR, "chroma_db") # Use environment variables if set, otherwise default paths PDF_PATH = os.getenv("PDF_PATH", DEFAULT_PDF_PATH) VECTOR_DB_PATH = os.getenv("VECTOR_DB_PATH", DEFAULT_DB_PATH) # Ensure directories exist os.makedirs(os.path.dirname(VECTOR_DB_PATH), exist_ok=True) # Validate PDF file existence and readability before proceeding logging.info(f"Attempting to load PDF from: {PDF_PATH}") if not os.path.exists(PDF_PATH): logging.error(f"FATAL: PDF file not found at the specified path: {PDF_PATH}") print(f"\n--- CONFIGURATION ERROR ---\nPDF file ('{os.path.basename(PDF_PATH)}') not found at: {PDF_PATH}.\nPlease ensure it exists or set 'PDF_PATH' environment variable.\n---------------------------\n") exit(1) if not os.access(PDF_PATH, os.R_OK): logging.error(f"FATAL: PDF file at '{PDF_PATH}' exists but is not readable. Check file permissions.") print(f"\n--- PERMISSION ERROR ---\nPDF file ('{os.path.basename(PDF_PATH)}') found but not readable at: {PDF_PATH}\nPlease check file permissions (e.g., using 'chmod +r' in terminal).\n---------------------------\n") exit(1) logging.info(f"PDF file '{os.path.basename(PDF_PATH)}' found and is readable.") # Initialize Vector Database and RAG System vector_db_instance = VectorDatabase(persist_directory=VECTOR_DB_PATH) rag = RAGSystem(vector_db=vector_db_instance) rag.load_pdf(PDF_PATH) # Load/process PDF data into the vector DB # Create and launch the Gradio interface app_interface = rag.gradio_interface() SERVER_PORT = 7860 logging.info(f"Launching Gradio app on http://0.0.0.0:{SERVER_PORT}") print(f"\n--- Gradio App Running ---\nAccess at: http://localhost:{SERVER_PORT}\n(Share link will be available if you use share=True)\n--------------------------\n") app_interface.launch(server_name="0.0.0.0", server_port=SERVER_PORT, share=True) except Exception as e: logging.error(f"Application startup failed: {str(e)}", exc_info=True) print(f"\n--- FATAL STARTUP ERROR ---\n{str(e)}\nCheck logs for more details.\n---------------------------\n") exit(1)