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import os
import httpx
import re
import json
from fastapi import FastAPI, HTTPException, Depends
from dotenv import load_dotenv
from fastapi import FastAPI, HTTPException, Depends
from fastapi.security.api_key import APIKeyHeader
from fastapi.security import APIKeyHeader
from fastapi.middleware.cors import CORSMiddleware
from fastapi import Security
from google.cloud import firestore
from auth import INSTANCE_URL, get_token
from repository import Repository
from models import Cadastro, ChatRequest, ChatResponse, Convite, Instituicao, Login, StartSessionResponse, Voluntario, Evento
# Pipeline para extração da mensagem
def extract_json_objects(text):
objs = []
stack = 0
start = None
for i, char in enumerate(text):
if char == '{':
if stack == 0:
start = i
stack += 1
elif char == '}':
stack -= 1
if stack == 0 and start is not None:
objs.append(text[start:i+1])
return objs
def sanitize_content_field(s):
return re.sub(
r'"content":\s*".*?"(?=,\s*"name")',
'"content": null',
s,
flags=re.DOTALL
)
def parse_logs_to_json(text):
matches = extract_json_objects(text)
result = []
for item in matches:
try:
clean = sanitize_content_field(item)
result.append(json.loads(clean))
except json.JSONDecodeError:
try:
# fallback: tenta corrigir escapes básicos
clean = item.replace('\\"', '"')
clean = sanitize_content_field(clean)
result.append(json.loads(clean))
except Exception:
print("Falhou ao parsear:", item[:200])
return result
def join_messages(events):
parts = []
for item in events:
if item.get("event") == "message.delta":
delta = item.get("data", {}).get("delta", {})
contents = delta.get("content", [])
for c in contents:
if c.get("response_type") == "text":
parts.append(c.get("text", ""))
return "".join(parts)
load_dotenv()
app = FastAPI(
title="Hackaton Backend API",
description="API REST para integraçao Firestore e IBM watsonx Orchestrate.",
version="1.0.0",
docs_url="/docs",
redoc_url="/redoc",
openapi_url="/openapi.json",
)
app.add_middleware(
CORSMiddleware,
allow_origins=["*"],
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
# IBM Watsonx Orchestrate integration
@app.post("/api/v1/sessions", response_model=StartSessionResponse)
async def create_session():
"""Cria uma nova sessão (thread) no Watsonx Orchestrate."""
token = await get_token()
async with httpx.AsyncClient(timeout=60) as client:
res = await client.post(
f"{INSTANCE_URL}/v1/orchestrate/runs?stream=true&stream_timeout=120000&multiple_content=true",
headers={
"Authorization": f"Bearer {token}",
"IAM-API_KEY": os.getenv("WO_API_KEY"),
"accept": "application/json",
"Content-Type": "application/json",
},
json={
"message": {
"role": "user",
"content": "ola"
},
"agent_id": os.getenv("WO_AGENT_ID"),
},
)
if res.status_code != 200:
raise HTTPException(status_code=res.status_code, detail=res.text)
res = parse_logs_to_json(res.text)
thread_id = res[0].get("data").get("thread_id")
return {"session_id": thread_id}
@app.post("/api/v1/chat", response_model=ChatResponse)
async def chat(body: ChatRequest):
"""Envia uma mensagem para o agente e retorna a resposta."""
token = await get_token()
async with httpx.AsyncClient(timeout=120) as client:
res = await client.post(
f"{INSTANCE_URL}/v1/orchestrate/runs?stream=true&stream_timeout=120000&multiple_content=true",
headers={
"Authorization": f"Bearer {token}",
"IAM-API_KEY": os.getenv("WO_API_KEY"),
"accept": "application/json",
"Content-Type": "application/json",
},
json={
"message": {
"role": "user",
"content": body.message
},
"agent_id": os.getenv("WO_AGENT_ID"),
"thread_id": body.session_id, # Usa a thread_id da sessão
},
)
if res.status_code != 200:
raise HTTPException(status_code=res.status_code, detail=res.text)
res = parse_logs_to_json(res.text)
msg = join_messages(res)
# Retorna a thread_id atualizada
thread_id = res[0].get("data").get("thread_id") or body.session_id
return {"session_id": thread_id, "response": msg}
@app.delete("/api/v1/sessions/{session_id}")
async def close_session(session_id: str):
"""Encerra uma sessão."""
token = await get_token()
async with httpx.AsyncClient() as client:
res = await client.delete(
f"{INSTANCE_URL}/v1/chat/sessions/{session_id}",
headers={"Authorization": f"Bearer {token}"},
)
return {"closed": session_id, "status": res.status_code}
# Handle database operations
repository = Repository()
API_KEY = os.getenv("API_KEY")
api_key_header = APIKeyHeader(name="X-API-Key")
def verificar_chave(key: str = Security(api_key_header)):
if key != API_KEY:
raise HTTPException(status_code=403, detail="Chave inválida")
@app.get("/api/v1/collections/{collection_name}", dependencies=[Depends(verificar_chave)])
def get_collection(collection_name: str):
data = repository.get_collection(collection_name)
return data
@app.get("/api/v1/collections/{collection_name}/{doc_id}", dependencies=[Depends(verificar_chave)])
def get_document(collection_name: str, doc_id: str):
data = repository.get_document(collection_name, doc_id)
return data
@app.post("/api/v1/convites", dependencies=[Depends(verificar_chave)], status_code=201)
def criar_convite(c: Convite):
data = {
"uid_voluntario": c.uid_voluntario,
"nome_instituicao": c.nome_instituicao,
"titulo_evento": c.titulo_evento,
"horario_evento": c.horario_evento.isoformat(),
"criado_em": firestore.SERVER_TIMESTAMP,
"status": "pendente" # campo útil para o agente filtrar depois
}
repository.set_document("convites", data)
return {
"message": "Convite criado com sucesso"
}
@app.put("/api/v1/convites/{doc_id}", dependencies=[Depends(verificar_chave)])
def update_convite_status(doc_id: str, status: str):
status_validos = ["pendente", "aceito", "recusado"]
if status not in status_validos:
raise HTTPException(status_code=400, detail=f"Status inválido. Use: {', '.join(status_validos)}")
repository.update_document("convites", {"status": status}, doc_id)
return {
"message": "Status do convite atualizado com sucesso"
}
@app.post("/api/v1/login", dependencies=[Depends(verificar_chave)])
def login(login: Login):
user = [u for u in repository.get_collection('usuarios') if u["email"] == login.email]
if(user == []):
raise HTTPException(status_code=404, detail="Usuário não encontrado")
user = user[0]
if(user['password'] != login.password):
raise HTTPException(status_code=401, detail="Senha inválida")
return {
"id": user['id'],
"email": user['email'],
"tipo": user['tipo']
}
@app.post("/api/v1/cadastro", dependencies=[Depends(verificar_chave)])
def cadastro(cad: Cadastro):
data = {
"nome": cad.nome,
"email": cad.email,
"password": cad.password,
"tipo": cad.tipo,
"criadoEm": firestore.SERVER_TIMESTAMP
}
repository.set_document("usuarios", data)
if cad.tipo == "voluntario":
vol = {
"nome": cad.nome,
"logradouro": '',
"cidade": '',
"uf": '',
"cep": '',
"contato": '',
"habilidades": '',
"disponibilidade": ''
}
repository.set_document("voluntarios", vol)
else:
inst = {
"nome": cad.nome,
"setor": '',
"logradouro": '',
"numero": '',
"cidade": '',
"uf": '',
"cep": '',
"contato": ''
}
repository.set_document("instituicoes", inst)
return {
"message": "Novo usuário adicionado com sucesso"
}
@app.post("/api/v1/voluntarios", dependencies=[Depends(verificar_chave)], status_code=201)
def set_voluntario(v: Voluntario):
data = {
"nome": v.nome,
"logradouro": v.logradouro,
"cidade": v.cidade,
"uf": v.uf,
"cep": v.cep,
"contato": v.contato,
"habilidades": v.habilidades,
"disponibilidade": v.disponibilidade
}
repository.set_document("voluntarios", data)
return {
"message": "Novo voluntario adicionado com sucesso"
}
@app.get("/api/v1/voluntarios/buscarId", dependencies=[Depends(verificar_chave)])
def buscar_id_por_nome(nome: str):
voluntarios = repository.get_collection("voluntarios")
for v in voluntarios:
if v.get("nome") == nome:
return {"id": v.get("id")}
raise HTTPException(status_code=404, detail="Voluntário não encontrado")
@app.put("/api/v1/voluntarios/{doc_id}", dependencies=[Depends(verificar_chave)])
def update_voluntario(v: Voluntario, doc_id: str):
data = {
"nome": v.nome,
"logradouro": v.logradouro,
"cidade": v.cidade,
"uf": v.uf,
"cep": v.cep,
"contato": v.contato,
"habilidades": v.habilidades,
"disponibilidade": v.disponibilidade
}
repository.update_document("voluntarios", data, doc_id)
return {
"message": "Voluntario atualizado com sucesso"
}
@app.delete("/api/v1/voluntarios/{doc_id}", dependencies=[Depends(verificar_chave)])
def delete_voluntario(doc_id: str):
repository.delete_document(doc_id)
return {
"message": "Voluntario apagado com sucesso"
}
@app.post("/api/v1/instituicoes", dependencies=[Depends(verificar_chave)], status_code=201)
def set_instituicao(i: Instituicao):
data = {
"nome": i.nome,
"setor": i.setor,
"logradouro": i.logradouro,
"numero": i.numero,
"cidade": i.cidade,
"uf": i.uf,
"cep": i.cep,
"contato": i.contato
}
repository.set_document("instituicoes", data)
return {
"message": "Nova instituição adicionado com sucesso"
}
@app.get("/api/v1/instituicoes/buscarId", dependencies=[Depends(verificar_chave)])
def buscar_id_por_nome(nome: str):
voluntarios = repository.get_collection("instituicoes")
for v in voluntarios:
if v.get("nome") == nome:
return {"id": v.get("id")}
raise HTTPException(status_code=404, detail="Voluntário não encontrado")
@app.put("/api/v1/instituicoes/{doc_id}", dependencies=[Depends(verificar_chave)])
def update_instituicao(i: Instituicao, doc_id: str):
data = {
"nome": i.nome,
"setor": i.setor,
"logradouro": i.logradouro,
"numero": i.numero,
"cidade": i.cidade,
"uf": i.uf,
"cep": i.cep,
"contato": i.contato
}
repository.update_document("instituicoes", data, doc_id)
return {
"message": "Instituicão atualizada com sucesso"
}
@app.delete("/api/v1/instituicoes/{doc_id}", dependencies=[Depends(verificar_chave)])
def delete_instituicao(doc_id: str):
repository.delete_document(doc_id)
return {
"message": "Instituicao apagada com sucesso"
}