Files
espiritismo-rag-system/backend/services/pdf_processor.py
T
lgcosta b9c0c66d21 feat: implementar sistema RAG Espiritismo completo
- Stack: GPT4All + Llama 3.2 3B, LangChain, Qdrant, FastAPI, Docker
- 11 tarefas implementadas com 100% de conclusão
- Funcionalidades: chat com IA, upload PDF, bot Telegram, agendamento
- 6 livros PDF indexados (A Gênese, Livro dos Espíritos, etc.)
- Documentação rica: README, BUILD, task reports, design specs
- Deploy com Docker Compose
- Production ready

Tech stack:
- AI: GPT4All 2.4.6, Llama 3.2 3B q4_0
- Backend: FastAPI 0.115.0, Celery 5.4.0, Redis 5.2.0
- RAG: LangChain 0.3.7, Qdrant 1.11.1
- Frontend: HTML5/CSS3/Vanilla JS
- Deploy: Docker Compose

Acceptance Criteria:
✅ CPU-only, <8GB RAM, ~5GB storage
✅ Suporta upload de PDFs
✅ Interface web rica e responsiva
✅ Bot Telegram funcional
✅ Agendamento de mensagens
✅ Código limpo e documentado
✅ Deploy via Docker

Status: PRODUCTION READY
Version: 1.0.0
Date: 2026-11-01
2026-11-01 10:56:17 -03:00

46 lines
1.5 KiB
Python

from langchain_community.document_loaders import PyPDFLoader
from langchain_text_splitters import RecursiveCharacterTextSplitter
import os
from typing import List, Dict
from .embeddings import EmbeddingService
class PDFProcessor:
def __init__(self, embedding_service: EmbeddingService):
self.embedding_service = embedding_service
self.text_splitter = RecursiveCharacterTextSplitter(
chunk_size=500,
chunk_overlap=50,
length_function=len,
)
def load_and_split(self, file_path: str, metadata: Dict) -> List[Dict]:
"""Load and split a PDF file."""
loader = PyPDFLoader(file_path)
documents = loader.load()
chunks = self.text_splitter.split_documents(documents)
# Convert to dictionaries with metadata
chunk_data = []
for i, doc in enumerate(chunks):
chunk_data.append({
"content": doc.page_content,
"metadata": {
**metadata,
"chunk_id": i,
"source": file_path,
}
})
return chunk_data
def embed_chunks(self, chunks: List[Dict]) -> List[Dict]:
"""Add embeddings to chunks."""
texts = [chunk["content"] for chunk in chunks]
embeddings = self.embedding_service.embed(texts)
for chunk, embedding in zip(chunks, embeddings):
chunk["embedding"] = embedding.tolist()
return chunks