src/research_agent/crew.py

import sys
from crewai import Agent, Crew, Process, Task, LLM
from crewai.project import CrewBase, agent, crew, task
from src.research_agent.tools.tool import search_tool, website_search_tool,pdf_search_tool
import streamlit as st
import os
from dotenv import load_dotenv
load_dotenv()
sys.path.append('..')

@CrewBase
class MarketUseCaseCrew:
	def llm(self):
		return LLM(model="openrouter/google/gemini-2.0-flash-001", base_url="https://openrouter.ai/api/v1", api_key=os.getenv("OPENROUTER_API_KEY"))
	
	@agent
	def researcher(self) -> Agent:
		return Agent(
			config=self.agents_config['researcher'],
			tools=[search_tool,website_search_tool, pdf_search_tool], # Example of custom tool, loaded on the beginning of file
			verbose=True,
			llm=self.llm(),
			allow_delegation=True,
		)

	@agent
	def design_thinker(self) -> Agent:
		return Agent(
			config=self.agents_config['design_thinker'],
			verbose=True,
			tools=[search_tool, website_search_tool],
			llm=self.llm(),
			allow_delegation=True,
		)
	
	@agent	
	def developer(self) -> Agent:
		return Agent(
			config=self.agents_config['developer'],
			verbose=True,
			tools=[search_tool, website_search_tool, pdf_search_tool],
			llm=self.llm(),
			allow_delegation=True,
		)
	
	@task
	def research_task(self) -> Task:
		return Task(
			config=self.tasks_config['research_task'],
			output_file=f'output/researched_data.md',
		)

	@task
	def design_task(self) -> Task:
		return Task(
			config=self.tasks_config['design_task'],
			output_file=f'output/ideas.md'
		)
	
	@task
	def resource_collector(self) -> Task:
		return Task(
			config=self.tasks_config['resource_collector'],
			output_file=f'output/resouce.md'
		)
	@crew
	def crew(self) -> Crew:
		"""Creates the ResearchAgent crew"""
		return Crew(
			agents=self.agents, # Automatically created by the @agent decorator
			tasks=self.tasks, # Automatically created by the @task decorator
			process=Process.sequential,
			verbose=True,
			# process=Process.hierarchical, # In case you wanna use that instead https://docs.crewai.com/how-to/Hierarchical/
		)