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| import os | |
| import glob | |
| import gradio as gr | |
| from dotenv import load_dotenv | |
| from typing import List, Dict, Any, Tuple, Optional | |
| import uuid | |
| import torch | |
| from huggingface_hub import hf_hub_download | |
| import warnings | |
| warnings.filterwarnings("ignore") | |
| # Updated imports to avoid deprecation warnings | |
| from langchain_community.document_loaders import DirectoryLoader, TextLoader | |
| from langchain_text_splitters import CharacterTextSplitter | |
| from langchain_core.documents import Document | |
| from langchain_core.messages import HumanMessage, AIMessage | |
| from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder | |
| from langchain_core.runnables import RunnablePassthrough | |
| from langchain_core.output_parsers import StrOutputParser | |
| # Modern LangChain chains (replacing deprecated ConversationalRetrievalChain) | |
| from langchain.chains import create_history_aware_retriever, create_retrieval_chain | |
| from langchain.chains.combine_documents import create_stuff_documents_chain | |
| # Multi-provider LLM support | |
| from langchain_openai import OpenAIEmbeddings, ChatOpenAI | |
| from langchain_anthropic import ChatAnthropic | |
| from langchain_google_genai import ChatGoogleGenerativeAI | |
| # Supabase integration (pre-configured by admin) | |
| from langchain_community.vectorstores import SupabaseVectorStore | |
| from supabase.client import Client, create_client | |
| # Hugging Face Transformers for local Qwen model | |
| from transformers import AutoTokenizer, AutoModelForCausalLM, pipeline | |
| import accelerate | |
| # Configuration | |
| DEFAULT_MODEL = "Qwen/Qwen2.5-Coder-7B-Instruct-AWQ" # Quantized version for better performance | |
| TOP_K_DOCUMENTS = 5 | |
| # Model configurations for each provider | |
| MODEL_CONFIGS = { | |
| "openai": { | |
| "budget": "gpt-4o-mini", | |
| "premium": "o4-mini" | |
| }, | |
| "anthropic": { | |
| "budget": "claude-3-5-sonnet-20241022", | |
| "premium": "claude-4-sonnet-20250109" | |
| }, | |
| "google": { | |
| "budget": "gemini-2.0-flash-exp", | |
| "premium": "gemini-2.0-flash-thinking-exp-1219" | |
| } | |
| } | |
| # Load environment variables | |
| load_dotenv(override=True) | |
| class OCS4DevAssistant: | |
| def __init__(self): | |
| self.setup_environment() | |
| self.setup_local_model() | |
| self.setup_vector_store() | |
| self.chat_history = [] | |
| self.current_provider = "local" | |
| self.current_model_tier = "budget" | |
| def setup_environment(self): | |
| """Setup environment variables - only Supabase required for vector store""" | |
| # Supabase credentials (pre-configured by admin) | |
| self.supabase_url = os.getenv('SUPABASE_URL') | |
| self.supabase_key = os.getenv('SUPABASE_SERVICE_KEY') | |
| if not self.supabase_url or not self.supabase_key: | |
| print("⚠️ Supabase not configured. Vector search will be disabled.") | |
| self.supabase_url = None | |
| self.supabase_key = None | |
| # API keys (provided by users in UI) | |
| self.openai_api_key = os.getenv('OPENAI_API_KEY') | |
| self.anthropic_api_key = os.getenv('ANTHROPIC_API_KEY') | |
| self.google_api_key = os.getenv('GOOGLE_API_KEY') | |
| def setup_local_model(self): | |
| """Initialize the local Qwen2.5-Coder model""" | |
| print("🚀 Loading Qwen2.5-Coder-7B-Instruct (AWQ quantized)...") | |
| try: | |
| # Check if CUDA is available | |
| device = "cuda" if torch.cuda.is_available() else "cpu" | |
| print(f"Using device: {device}") | |
| # Load tokenizer | |
| self.tokenizer = AutoTokenizer.from_pretrained( | |
| DEFAULT_MODEL, | |
| trust_remote_code=True | |
| ) | |
| # Load quantized model | |
| self.local_model = AutoModelForCausalLM.from_pretrained( | |
| DEFAULT_MODEL, | |
| torch_dtype=torch.float16 if device == "cuda" else torch.float32, | |
| device_map="auto" if device == "cuda" else None, | |
| trust_remote_code=True, | |
| low_cpu_mem_usage=True | |
| ) | |
| # Create pipeline for easier inference | |
| self.local_pipeline = pipeline( | |
| "text-generation", | |
| model=self.local_model, | |
| tokenizer=self.tokenizer, | |
| torch_dtype=torch.float16 if device == "cuda" else torch.float32, | |
| device_map="auto" if device == "cuda" else None, | |
| max_new_tokens=1024, | |
| temperature=0.3, | |
| do_sample=True, | |
| pad_token_id=self.tokenizer.eos_token_id | |
| ) | |
| print("✅ Local Qwen2.5-Coder model loaded successfully!") | |
| except Exception as e: | |
| print(f"❌ Error loading local model: {e}") | |
| print("Model will be downloaded on first use...") | |
| self.local_model = None | |
| self.local_pipeline = None | |
| self.tokenizer = None | |
| def setup_vector_store(self): | |
| """Initialize vector store for retrieval only""" | |
| if not self.supabase_url or not self.supabase_key: | |
| self.vector_store = None | |
| print("⚠️ Supabase credentials not found. Vector store disabled.") | |
| print(" To enable, set SUPABASE_URL and SUPABASE_SERVICE_KEY environment variables.") | |
| return | |
| try: | |
| self.supabase_client = create_client(self.supabase_url, self.supabase_key) | |
| # Test connection and check if data exists | |
| response = self.supabase_client.table("fintech_api_docs").select("count").execute() | |
| doc_count = len(response.data) if response.data else 0 | |
| if doc_count == 0: | |
| print("⚠️ Supabase connected but no documents found in the database.") | |
| print(" Run the populate_supabase.py tool to add documents first.") | |
| else: | |
| print(f"✅ Supabase connected! Documents available: {doc_count}") | |
| # Use OpenAI embeddings for retrieval | |
| # Note: This requires a valid OpenAI API key for similarity search | |
| if self.openai_api_key: | |
| self.embeddings = OpenAIEmbeddings( | |
| model="text-embedding-3-small", | |
| openai_api_key=self.openai_api_key | |
| ) | |
| else: | |
| print("⚠️ No OpenAI API key found. Using fallback embeddings.") | |
| print(" For best results, provide an OpenAI API key.") | |
| # Fallback: still create embeddings object but searches may not work properly | |
| self.embeddings = OpenAIEmbeddings( | |
| model="text-embedding-3-small", | |
| openai_api_key="dummy-key" | |
| ) | |
| # Initialize vector store as retriever only | |
| self.vector_store = SupabaseVectorStore( | |
| client=self.supabase_client, | |
| embedding=self.embeddings, | |
| table_name="fintech_api_docs", | |
| query_name="match_documents" | |
| ) | |
| print("✅ Vector store initialized as retriever!") | |
| except Exception as e: | |
| print(f"❌ Vector store setup failed: {e}") | |
| print(" Ensure your Supabase table 'fintech_api_docs' exists with proper schema.") | |
| print(" Run the populate_supabase.py tool to set up the database.") | |
| self.vector_store = None | |
| def get_llm_instance(self, provider: str, tier: str, api_key: Optional[str] = None): | |
| """Get LLM instance based on provider and tier""" | |
| if provider == "local": | |
| return self.local_pipeline | |
| if not api_key: | |
| raise ValueError(f"API key required for {provider}") | |
| model_name = MODEL_CONFIGS[provider][tier] | |
| if provider == "openai": | |
| return ChatOpenAI( | |
| model=model_name, | |
| temperature=0.3, | |
| max_tokens=1000, | |
| openai_api_key=api_key | |
| ) | |
| elif provider == "anthropic": | |
| return ChatAnthropic( | |
| model=model_name, | |
| temperature=0.3, | |
| max_tokens=1000, | |
| anthropic_api_key=api_key | |
| ) | |
| elif provider == "google": | |
| return ChatGoogleGenerativeAI( | |
| model=model_name, | |
| temperature=0.3, | |
| max_output_tokens=1000, | |
| google_api_key=api_key | |
| ) | |
| else: | |
| raise ValueError(f"Unsupported provider: {provider}") | |
| def generate_local_response(self, prompt: str, context: str = "") -> str: | |
| """Generate response using local Qwen model""" | |
| if not self.local_pipeline or not self.tokenizer: | |
| # Try to load model if not loaded | |
| self.setup_local_model() | |
| if not self.local_pipeline or not self.tokenizer: | |
| return "❌ Local model not available. Please use API providers or check your setup." | |
| # Format prompt for Qwen2.5-Coder | |
| system_prompt = f"""You are ocs4dev, a specialized fintech API integration assistant. You help developers integrate fintech APIs including MTN MoMo, Pesapal, and Sentezo. | |
| Your expertise includes: | |
| - API authentication and security | |
| - Code examples and implementation | |
| - Error handling and debugging | |
| - Testing and best practices | |
| - Payment gateway integration | |
| Always provide practical, code-focused responses with examples. | |
| Context: {context}""" | |
| messages = [ | |
| {"role": "system", "content": system_prompt}, | |
| {"role": "user", "content": prompt} | |
| ] | |
| # Apply chat template | |
| formatted_prompt = self.tokenizer.apply_chat_template( | |
| messages, | |
| tokenize=False, | |
| add_generation_prompt=True | |
| ) | |
| try: | |
| # Generate response | |
| outputs = self.local_pipeline( | |
| formatted_prompt, | |
| max_new_tokens=1024, | |
| temperature=0.3, | |
| do_sample=True, | |
| pad_token_id=self.tokenizer.eos_token_id | |
| ) | |
| # Extract generated text | |
| response = outputs[0]["generated_text"] | |
| # Remove the input prompt from response | |
| if formatted_prompt in response: | |
| response = response.replace(formatted_prompt, "").strip() | |
| return response | |
| except Exception as e: | |
| return f"❌ Error generating response: {str(e)}" | |
| def get_retrieval_context(self, query: str) -> str: | |
| """Get relevant context from vector store""" | |
| if not self.vector_store: | |
| return "" | |
| try: | |
| docs = self.vector_store.similarity_search(query, k=TOP_K_DOCUMENTS) | |
| context = "\n\n".join([doc.page_content for doc in docs]) | |
| return context | |
| except Exception as e: | |
| print(f"Error retrieving context: {e}") | |
| return "" | |
| def create_retrieval_chain(self, llm, provider: str): | |
| """Create retrieval chain for API models""" | |
| if not self.vector_store: | |
| return None | |
| # Create retriever | |
| retriever = self.vector_store.as_retriever( | |
| search_type="similarity", | |
| search_kwargs={"k": TOP_K_DOCUMENTS} | |
| ) | |
| # Contextualize question prompt | |
| contextualize_q_system_prompt = """ | |
| You are ocs4dev, a fintech API integration expert. Given a chat history and the latest user question | |
| which might reference context in the chat history, formulate a standalone question | |
| which can be understood without the chat history. Focus on fintech API integration. | |
| Do NOT answer the question, just reformulate it if needed and otherwise return it as is. | |
| """ | |
| contextualize_q_prompt = ChatPromptTemplate.from_messages([ | |
| ("system", contextualize_q_system_prompt), | |
| MessagesPlaceholder("chat_history"), | |
| ("human", "{input}"), | |
| ]) | |
| # Create history-aware retriever | |
| history_aware_retriever = create_history_aware_retriever( | |
| llm, retriever, contextualize_q_prompt | |
| ) | |
| # Question answering prompt | |
| qa_system_prompt = """ | |
| You are ocs4dev, a specialized fintech API integration assistant. Use the following context | |
| to help developers integrate fintech APIs (MTN MoMo, Pesapal, Sentezo, etc.). | |
| Your responses should: | |
| 1. Be technically accurate and detailed | |
| 2. Include relevant code examples and snippets | |
| 3. Provide step-by-step implementation guidance | |
| 4. Include error handling best practices | |
| 5. Reference specific API endpoints and parameters | |
| 6. Suggest testing approaches | |
| Format code blocks properly with language specification for syntax highlighting. | |
| Always provide practical, actionable advice. | |
| Context: {context} | |
| """ | |
| qa_prompt = ChatPromptTemplate.from_messages([ | |
| ("system", qa_system_prompt), | |
| MessagesPlaceholder("chat_history"), | |
| ("human", "{input}"), | |
| ]) | |
| # Create document chain | |
| question_answer_chain = create_stuff_documents_chain(llm, qa_prompt) | |
| # Create final RAG chain | |
| rag_chain = create_retrieval_chain(history_aware_retriever, question_answer_chain) | |
| return rag_chain | |
| def update_model_config(self, provider: str, tier: str, api_key: str = None): | |
| """Update current model configuration""" | |
| self.current_provider = provider | |
| self.current_model_tier = tier | |
| if provider != "local" and api_key: | |
| if provider == "openai": | |
| self.openai_api_key = api_key | |
| elif provider == "anthropic": | |
| self.anthropic_api_key = api_key | |
| elif provider == "google": | |
| self.google_api_key = api_key | |
| def chat(self, message: str, history: List[Tuple[str, str]], provider: str, tier: str, api_key: str = None) -> str: | |
| """Main chat function - returns full response (streaming handled by Gradio)""" | |
| try: | |
| # Update model configuration | |
| self.update_model_config(provider, tier, api_key) | |
| if provider == "local": | |
| # Use local model with context | |
| context = self.get_retrieval_context(message) | |
| return self.generate_local_response(message, context) | |
| else: | |
| # Use API model | |
| api_key_map = { | |
| "openai": self.openai_api_key, | |
| "anthropic": self.anthropic_api_key, | |
| "google": self.google_api_key | |
| } | |
| current_api_key = api_key or api_key_map.get(provider) | |
| if not current_api_key: | |
| return f"❌ No API key provided for {provider}. Please enter your API key in the settings." | |
| # Get LLM instance | |
| llm = self.get_llm_instance(provider, tier, current_api_key) | |
| # Create retrieval chain | |
| rag_chain = self.create_retrieval_chain(llm, provider) | |
| if not rag_chain: | |
| # Fallback to simple context if no vector store | |
| context = self.get_retrieval_context(message) | |
| simple_prompt = f"Context: {context}\n\nQuestion: {message}\n\nProvide a detailed response about fintech API integration." | |
| return llm.invoke(simple_prompt).content | |
| # Convert Gradio history to LangChain format | |
| chat_history = [] | |
| for human, assistant in history: | |
| chat_history.append(HumanMessage(content=human)) | |
| chat_history.append(AIMessage(content=assistant)) | |
| # Invoke RAG chain | |
| response = rag_chain.invoke({ | |
| "input": message, | |
| "chat_history": chat_history | |
| }) | |
| return response["answer"] | |
| except Exception as e: | |
| return f"❌ Error processing request: {str(e)}" | |
| def create_gradio_interface(): | |
| """Create the Gradio interface optimized for HuggingFace Spaces""" | |
| print("🚀 Starting ocs4dev - Your Fintech API Integration Assistant") | |
| # Initialize assistant | |
| try: | |
| assistant = OCS4DevAssistant() | |
| print("✅ ocs4dev initialized successfully!") | |
| except Exception as e: | |
| print(f"❌ Failed to initialize ocs4dev: {e}") | |
| return None | |
| # Custom CSS for better styling and copy buttons | |
| custom_css = """ | |
| .warning-box { | |
| background-color: #fff3cd; | |
| border: 1px solid #ffeaa7; | |
| border-radius: 8px; | |
| padding: 12px; | |
| margin: 10px 0; | |
| font-size: 14px; | |
| color: #856404 !important; | |
| } | |
| .model-info { | |
| background-color: #e3f2fd; | |
| border-left: 4px solid #2196f3; | |
| padding: 12px; | |
| margin: 10px 0; | |
| border-radius: 4px; | |
| color: #1565c0 !important; | |
| } | |
| .feature-box { | |
| background-color: #f8f9fa; | |
| border: 1px solid #dee2e6; | |
| border-radius: 8px; | |
| padding: 15px; | |
| margin: 10px 0; | |
| color: #212529 !important; | |
| } | |
| .code-block { | |
| background-color: #f8f9fa; | |
| border: 1px solid #e9ecef; | |
| border-radius: 6px; | |
| padding: 12px; | |
| margin: 8px 0; | |
| position: relative; | |
| font-family: 'Courier New', monospace; | |
| color: #212529 !important; | |
| } | |
| .copy-button { | |
| position: absolute; | |
| top: 8px; | |
| right: 8px; | |
| background: #007bff; | |
| color: white; | |
| border: none; | |
| padding: 4px 8px; | |
| border-radius: 4px; | |
| cursor: pointer; | |
| font-size: 12px; | |
| } | |
| .copy-button:hover { | |
| background: #0056b3; | |
| } | |
| /* Hide Gradio footer */ | |
| .footer { | |
| display: none !important; | |
| } | |
| /* Overlay backdrop */ | |
| .sidebar-backdrop { | |
| position: fixed; | |
| top: 0; | |
| left: 0; | |
| width: 100%; | |
| height: 100%; | |
| background: rgba(0, 0, 0, 0.5); | |
| z-index: 999; | |
| display: none; | |
| } | |
| .sidebar-backdrop.show { | |
| display: block; | |
| } | |
| /* Sidebar as overlay */ | |
| .sidebar-container { | |
| position: fixed; | |
| left: 0; | |
| top: 0; | |
| height: 100vh; | |
| width: 400px; /* Wider sidebar for better text display */ | |
| max-width: 90vw; /* Responsive on mobile */ | |
| background: var(--background-fill-primary); | |
| border-right: 1px solid var(--border-color-primary); | |
| transform: translateX(-100%); | |
| transition: transform 0.3s ease; | |
| z-index: 1000; | |
| overflow-y: auto; | |
| overflow-x: hidden; | |
| padding: 20px; | |
| padding-top: 60px; /* Space for close button */ | |
| box-sizing: border-box; | |
| box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1); | |
| } | |
| .sidebar-container.open { | |
| transform: translateX(0); | |
| } | |
| /* Fix white spaces in sidebar */ | |
| .sidebar-container .gr-form { | |
| gap: 0 !important; | |
| } | |
| .sidebar-container .gr-box { | |
| border: none !important; | |
| background: transparent !important; | |
| } | |
| .sidebar-container .gr-padded { | |
| padding: 8px !important; | |
| } | |
| .sidebar-container .gr-panel { | |
| background: var(--background-fill-secondary) !important; | |
| padding: 12px !important; | |
| border-radius: 8px; | |
| margin-bottom: 12px; | |
| } | |
| /* Style sidebar content */ | |
| .sidebar-container h2 { | |
| color: var(--body-text-color) !important; | |
| margin-bottom: 20px; | |
| font-size: 1.5rem; | |
| } | |
| .sidebar-container .gr-markdown h2 { | |
| color: var(--body-text-color) !important; | |
| margin-top: 0; | |
| } | |
| /* Remove unwanted white borders and backgrounds */ | |
| .sidebar-container .gradio-container { | |
| background: transparent !important; | |
| border: none !important; | |
| } | |
| .sidebar-container .gr-form { | |
| background: transparent !important; | |
| border: none !important; | |
| gap: 12px !important; | |
| } | |
| .sidebar-container .gr-input-wrapper { | |
| margin: 0 !important; | |
| } | |
| .sidebar-container .gr-group { | |
| background: var(--background-fill-secondary) !important; | |
| border: 1px solid var(--border-color-primary) !important; | |
| border-radius: 8px; | |
| padding: 12px; | |
| margin-bottom: 12px; | |
| } | |
| /* Ensure text visibility in sidebar */ | |
| .sidebar-container * { | |
| color: var(--body-text-color) !important; | |
| } | |
| .sidebar-title { | |
| font-size: 1.5rem !important; | |
| font-weight: bold !important; | |
| margin-bottom: 20px !important; | |
| color: var(--body-text-color) !important; | |
| } | |
| .sidebar-toggle { | |
| position: fixed; | |
| left: 20px; | |
| top: 20px; | |
| z-index: 998; | |
| background: var(--button-primary-background-fill); | |
| color: var(--button-primary-text-color); | |
| border: none; | |
| padding: 12px 16px; | |
| border-radius: 8px; | |
| cursor: pointer; | |
| font-size: 18px; | |
| transition: all 0.3s ease; | |
| box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1); | |
| } | |
| .sidebar-toggle:hover { | |
| background: var(--button-primary-background-fill-hover); | |
| box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15); | |
| } | |
| .sidebar-close { | |
| position: absolute; | |
| right: 20px; | |
| top: 20px; | |
| background: transparent; | |
| border: none; | |
| font-size: 24px; | |
| cursor: pointer; | |
| color: var(--body-text-color); | |
| padding: 5px; | |
| border-radius: 4px; | |
| transition: background 0.2s ease; | |
| z-index: 1001; | |
| } | |
| .sidebar-close:hover { | |
| background: var(--background-fill-secondary); | |
| } | |
| /* Main content stays in place */ | |
| .main-content { | |
| min-height: 100vh; | |
| padding-left: 70px; /* Space for menu button */ | |
| } | |
| /* Custom chat styling */ | |
| .chat-container { | |
| max-width: 100%; | |
| margin: 0 auto; | |
| padding: 20px; | |
| } | |
| /* Dark mode specific fixes */ | |
| .dark .sidebar-container { | |
| background: var(--background-fill-primary); | |
| } | |
| .dark .warning-box { | |
| background-color: #2d2d2d; | |
| border: 1px solid #ffc107; | |
| color: #ffc107 !important; | |
| } | |
| .dark .model-info { | |
| background-color: #1a1a1a; | |
| border-left: 4px solid #64b5f6; | |
| color: #64b5f6 !important; | |
| } | |
| .dark .feature-box { | |
| background-color: #2d2d2d; | |
| border: 1px solid #495057; | |
| color: #e9ecef !important; | |
| } | |
| /* Responsive adjustments */ | |
| @media (max-width: 768px) { | |
| .sidebar-container { | |
| width: 85vw; | |
| } | |
| .main-content { | |
| padding-left: 60px; | |
| } | |
| } | |
| """ | |
| # Create the interface | |
| def chat_with_config(message, history, provider, tier, openai_key, anthropic_key, google_key): | |
| """Chat function with configuration""" | |
| api_key = None | |
| if provider == "openai": | |
| api_key = openai_key | |
| elif provider == "anthropic": | |
| api_key = anthropic_key | |
| elif provider == "google": | |
| api_key = google_key | |
| return assistant.chat(message, history, provider, tier, api_key) | |
| # Create interface | |
| with gr.Blocks( | |
| title="ocs4dev - Fintech API Assistant", | |
| theme=gr.themes.Soft( | |
| primary_hue="blue", | |
| secondary_hue="gray", | |
| neutral_hue="slate", | |
| ), | |
| css=custom_css, | |
| fill_height=True, | |
| js=""" | |
| function() { | |
| // Add sidebar toggle functionality with backdrop | |
| const backdrop = document.createElement('div'); | |
| backdrop.className = 'sidebar-backdrop'; | |
| document.body.appendChild(backdrop); | |
| const toggleButton = document.createElement('button'); | |
| toggleButton.innerHTML = '☰'; | |
| toggleButton.className = 'sidebar-toggle'; | |
| toggleButton.title = 'Open Settings'; | |
| const sidebar = document.querySelector('.sidebar-container'); | |
| // Add close button to sidebar | |
| const closeButton = document.createElement('button'); | |
| closeButton.innerHTML = '✕'; | |
| closeButton.className = 'sidebar-close'; | |
| closeButton.title = 'Close Settings'; | |
| sidebar.insertBefore(closeButton, sidebar.firstChild); | |
| function openSidebar() { | |
| sidebar.classList.add('open'); | |
| backdrop.classList.add('show'); | |
| document.body.style.overflow = 'hidden'; | |
| } | |
| function closeSidebar() { | |
| sidebar.classList.remove('open'); | |
| backdrop.classList.remove('show'); | |
| document.body.style.overflow = ''; | |
| } | |
| toggleButton.onclick = openSidebar; | |
| closeButton.onclick = closeSidebar; | |
| backdrop.onclick = closeSidebar; | |
| // ESC key to close | |
| document.addEventListener('keydown', (e) => { | |
| if (e.key === 'Escape' && sidebar.classList.contains('open')) { | |
| closeSidebar(); | |
| } | |
| }); | |
| document.body.appendChild(toggleButton); | |
| } | |
| """ | |
| ) as interface: | |
| # Header | |
| with gr.Column(elem_classes="main-content"): | |
| gr.Markdown("# 🏦 ocs4dev - Your Fintech API Integration Assistant") | |
| gr.Markdown("*Specialized AI assistant for integrating fintech APIs including MTN MoMo, Airtel, Pesapal, Sentezo, etc*") | |
| # Main chat interface | |
| chatbot = gr.Chatbot( | |
| height=500, | |
| placeholder="Ask me about fintech API integration, authentication, code examples, or best practices...", | |
| label="ocs4dev Assistant", | |
| show_copy_button=True, # Enable copy button for chat messages | |
| render_markdown=True, | |
| elem_classes="chat-container" | |
| ) | |
| msg = gr.Textbox( | |
| placeholder="How do I authenticate with MTN MoMo API?", | |
| label="Your Question", | |
| lines=2, | |
| show_copy_button=True # Enable copy button for input | |
| ) | |
| with gr.Row(): | |
| clear = gr.Button("Clear", variant="secondary") | |
| submit = gr.Button("Send", variant="primary") | |
| # Example questions | |
| gr.Examples( | |
| examples=[ | |
| "How do I authenticate with MTN MoMo API?", | |
| "Show me a Pesapal payment integration example", | |
| "What are the required headers for Sentezo API?", | |
| "How do I handle payment webhooks?", | |
| "Best practices for API error handling", | |
| "How to test API integrations in sandbox mode?", | |
| "Show me a complete payment flow implementation", | |
| "How to secure API keys in production?", | |
| "What's the difference between sandbox and production?", | |
| "How do I implement payment status callbacks?" | |
| ], | |
| inputs=msg, | |
| label="💡 Example Questions" | |
| ) | |
| # Sidebar (hidden by default) | |
| with gr.Column(elem_classes="sidebar-container", elem_id="settings-sidebar"): | |
| gr.Markdown("## ⚙️ Configuration", elem_classes="sidebar-title") | |
| # Model provider selection | |
| with gr.Group(): | |
| provider = gr.Radio( | |
| choices=["local", "openai", "anthropic", "google"], | |
| value="local", | |
| label="Model Provider", | |
| info="Local model is free but requires GPU. API models need keys.", | |
| elem_classes="provider-selector" | |
| ) | |
| tier = gr.Radio( | |
| choices=["budget", "premium"], | |
| value="budget", | |
| label="Model Tier", | |
| info="Budget models are faster/cheaper, Premium models are more capable", | |
| elem_classes="tier-selector" | |
| ) | |
| # API Keys Section | |
| with gr.Accordion("🔑 API Keys", open=True, elem_classes="api-keys-section"): | |
| gr.HTML('<div class="warning-box">⚠️ <strong>Security Warning:</strong> Create test API keys for this app and delete them after use. Never share production keys.</div>') | |
| with gr.Group(): | |
| openai_key = gr.Textbox( | |
| placeholder="sk-...", | |
| label="OpenAI API Key", | |
| type="password", | |
| info="Budget: gpt-4o-mini | Premium: o4-mini (advanced reasoning)", | |
| elem_classes="api-key-input" | |
| ) | |
| anthropic_key = gr.Textbox( | |
| placeholder="sk-ant-...", | |
| label="Anthropic API Key", | |
| type="password", | |
| info="Budget: claude-3.5-sonnet | Premium: claude-4-sonnet", | |
| elem_classes="api-key-input" | |
| ) | |
| google_key = gr.Textbox( | |
| placeholder="AI...", | |
| label="Google API Key", | |
| type="password", | |
| info="Budget: gemini-2.0-flash | Premium: gemini-2.0-flash-thinking", | |
| elem_classes="api-key-input" | |
| ) | |
| # Updated model information | |
| gr.HTML('<div class="model-info">🚀 <strong>Pro Tip:</strong> Add your API keys above for faster and better responses. Local model works but API models provide superior performance!</div>') | |
| # Features | |
| with gr.Accordion("✨ Features", open=False, elem_classes="features-section"): | |
| gr.HTML(''' | |
| <div class="feature-box"> | |
| <strong>🔧 Code-Focused:</strong> Optimized for API integration tasks<br> | |
| <strong>🔒 Secure:</strong> No API keys stored permanently<br> | |
| <strong>📋 Copy-Friendly:</strong> Easy code copying with built-in buttons<br> | |
| <strong>🚀 Fast:</strong> Multiple model options for best performance<br> | |
| <strong>🔄 Multi-Provider:</strong> Switch between AI models seamlessly | |
| </div> | |
| ''') | |
| # Chat functionality with simple response | |
| def respond(message, history, provider, tier, openai_key, anthropic_key, google_key): | |
| """Handle chat responses with simulated streaming""" | |
| if not message: | |
| return history, "" | |
| # Add user message to history | |
| history = history or [] | |
| # Get the full response | |
| bot_message = chat_with_config(message, history, provider, tier, openai_key, anthropic_key, google_key) | |
| # Simulate streaming by yielding partial responses | |
| partial = "" | |
| words = bot_message.split(" ") | |
| # Stream words in chunks for smooth appearance | |
| chunk_size = 3 # Words per chunk | |
| for i in range(0, len(words), chunk_size): | |
| chunk = " ".join(words[i:i+chunk_size]) | |
| partial += chunk + " " | |
| yield history + [(message, partial.strip())], "" | |
| # Final update with complete response | |
| yield history + [(message, bot_message)], "" | |
| # Connect the interface | |
| submit.click( | |
| respond, | |
| inputs=[msg, chatbot, provider, tier, openai_key, anthropic_key, google_key], | |
| outputs=[chatbot, msg] | |
| ) | |
| msg.submit( | |
| respond, | |
| inputs=[msg, chatbot, provider, tier, openai_key, anthropic_key, google_key], | |
| outputs=[chatbot, msg] | |
| ) | |
| clear.click(lambda: ([], ""), outputs=[chatbot, msg]) | |
| # Footer | |
| gr.Markdown("---") | |
| gr.Markdown("Built with ❤️ by Aaron | Using Qwen2.5-Coder, LangChain, and Gradio | [GitHub](https://github.com/aaron-official/ocs4dev.git)") | |
| return interface | |
| def populate_knowledge_base_standalone(): | |
| """[DEPRECATED] Use the separate populate_supabase.py tool instead""" | |
| print("⚠️ This function is deprecated!") | |
| print(" Please use the separate 'populate_supabase.py' tool to populate the vector database.") | |
| print(" ") | |
| print(" Usage:") | |
| print(" $ python populate_supabase.py --knowledge-base ./knowledge-base") | |
| print(" ") | |
| print(" The tool will:") | |
| print(" 1. Load all markdown files from your knowledge base directory") | |
| print(" 2. Split them into chunks for better retrieval") | |
| print(" 3. Generate embeddings using OpenAI") | |
| print(" 4. Store everything in your Supabase vector database") | |
| print(" ") | |
| print(" Make sure you have set these environment variables:") | |
| print(" - SUPABASE_URL") | |
| print(" - SUPABASE_SERVICE_KEY") | |
| print(" - OPENAI_API_KEY") | |
| return False | |
| def main(): | |
| """Main function optimized for HuggingFace Spaces""" | |
| interface = create_gradio_interface() | |
| if interface: | |
| # HuggingFace Spaces optimized launch | |
| interface.launch( | |
| server_name="0.0.0.0", | |
| server_port=7860, | |
| share=True, # Enable public URL for HF Spaces | |
| inbrowser=False, # Don't open browser in server environment | |
| show_error=True, | |
| quiet=False, | |
| max_threads=10 # Limit concurrent requests | |
| ) | |
| if __name__ == "__main__": | |
| main() |