app.py

import yaml
import os
import base64
from smolagents import GradioUI, CodeAgent, HfApiModel

# Get current directory path
CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))

from tools.web_search import DuckDuckGoSearchTool as WebSearch
from tools.visit_webpage import VisitWebpageTool as VisitWebpage
from tools.suggest_menu import SimpleTool as SuggestMenu
from tools.catering_service_tool import SimpleTool as CateringServiceTool
from tools.superhero_party_theme_generator import SuperheroPartyThemeTool as SuperheroPartyThemeGenerator
from tools.final_answer import FinalAnswerTool as FinalAnswer

# Add OpenTelemetry instrumentation
from opentelemetry.sdk.trace import TracerProvider
from openinference.instrumentation.smolagents import SmolagentsInstrumentor
from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
from opentelemetry.sdk.trace.export import SimpleSpanProcessor

# Setup tracing if environment variables are present
if "LANGFUSE_PUBLIC_KEY" in os.environ and "LANGFUSE_SECRET_KEY" in os.environ:
    # Prepare authentication
    LANGFUSE_PUBLIC_KEY = os.environ.get("LANGFUSE_PUBLIC_KEY")
    LANGFUSE_SECRET_KEY = os.environ.get("LANGFUSE_SECRET_KEY")
    LANGFUSE_AUTH = base64.b64encode(f"{LANGFUSE_PUBLIC_KEY}:{LANGFUSE_SECRET_KEY}".encode()).decode()
    
    # Set OTEL environment variables
    os.environ["OTEL_EXPORTER_OTLP_ENDPOINT"] = "https://cloud.langfuse.com/api/public/otel"  # EU region
    os.environ["OTEL_EXPORTER_OTLP_HEADERS"] = f"Authorization=Basic {LANGFUSE_AUTH}"
    
    # Setup tracing
    trace_provider = TracerProvider()
    trace_provider.add_span_processor(SimpleSpanProcessor(OTLPSpanExporter()))
    SmolagentsInstrumentor().instrument(tracer_provider=trace_provider)
    print("Langfuse tracing enabled")

CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))

model = HfApiModel(
model_id='Qwen/Qwen2.5-Coder-32B-Instruct',
)

web_search = WebSearch()
visit_webpage = VisitWebpage()
suggest_menu = SuggestMenu()
catering_service_tool = CateringServiceTool()
superhero_party_theme_generator = SuperheroPartyThemeGenerator()
final_answer = FinalAnswer()


with open(os.path.join(CURRENT_DIR, "prompts.yaml"), 'r') as stream:
    prompt_templates = yaml.safe_load(stream)

agent = CodeAgent(
    model=model,
    tools=[web_search, visit_webpage, suggest_menu, catering_service_tool, superhero_party_theme_generator],
    managed_agents=[],
    max_steps=10,
    verbosity_level=2,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    executor_type='local',
    executor_kwargs={},
    max_print_outputs_length=None,
    prompt_templates=prompt_templates
)
if __name__ == "__main__":
    GradioUI(agent).launch()