%pip install langfuse openlit crewai crewai_tools

import os
 
# 프로젝트에 대한 키를 프로젝트 설정 페이지에서 확인하세요: https://cloud.langfuse.com
os.environ["LANGFUSE_PUBLIC_KEY"] = "pk-lf-..." 
os.environ["LANGFUSE_SECRET_KEY"] = "sk-lf-..."
os.environ["LANGFUSE_HOST"] = "https://cloud.langfuse.com" # 🇪🇺 EU 지역
# os.environ["LANGFUSE_HOST"] = "https://us.cloud.langfuse.com" # 🇺🇸 US 지역
 
 
# OpenAI 키
os.environ["OPENAI_API_KEY"] = "sk-proj-..."

from langfuse import get_client
 
langfuse = get_client()
 
# 연결 확인
if langfuse.auth_check():
    print("Langfuse 클라이언트가 인증되었으며 준비되었습니다!")
else:
    print("인증에 실패했습니다. 자격 증명과 호스트를 확인하세요.")

import openlit

openlit.init()

from crewai import Agent, Task, Crew

from crewai_tools import (
    WebsiteSearchTool
)

web_rag_tool = WebsiteSearchTool()

writer = Agent(
        role="Writer",
        goal="You make math engaging and understandable for young children through poetry",
        backstory="You're an expert in writing haikus but you know nothing of math.",
        tools=[web_rag_tool],  
    )

task = Task(description=("What is {multiplication}?"),
            expected_output=("Compose a haiku that includes the answer."),
            agent=writer)

crew = Crew(
  agents=[writer],
  tasks=[task],
  share_crew=False
)