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from typing import Optional, List
from agents.agent import Agent
from agents.deals import ScrapedDeal, DealSelection, Deal, Opportunity
from agents.scanner_agent import ScannerAgent
from agents.ensemble_agent import EnsembleAgent
from agents.messaging_agent import MessagingAgent
class PlanningAgent(Agent):
name = "Planning Agent"
color = Agent.GREEN
DEAL_THRESHOLD = 50
def __init__(self, collection):
"""
Create instances of the 3 Agents that this planner coordinates across
"""
self.log("Planning Agent is initializing")
self.scanner = ScannerAgent()
self.ensemble = EnsembleAgent(collection)
self.messenger = MessagingAgent()
self.log("Planning Agent is ready")
def run(self, deal: Deal) -> Opportunity:
"""
Run the workflow for a particular deal
:param deal: the deal, summarized from an RSS scrape
:returns: an opportunity including the discount
"""
self.log("Planning Agent is pricing up a potential deal")
estimate = self.ensemble.price(deal.product_description)
discount = estimate - deal.price
self.log(f"Planning Agent has processed a deal with discount ${discount:.2f}")
return Opportunity(deal=deal, estimate=estimate, discount=discount)
def plan(self, memory: List[str] = []) -> Optional[Opportunity]:
"""
Run the full workflow:
1. Use the ScannerAgent to find deals from RSS feeds
2. Use the EnsembleAgent to estimate them
3. Use the MessagingAgent to send a notification of deals
:param memory: a list of URLs that have been surfaced in the past
:return: an Opportunity if one was surfaced, otherwise None
"""
self.log("Planning Agent is kicking off a run")
selection = self.scanner.scan(memory=memory)
if selection:
opportunities = [self.run(deal) for deal in selection.deals[:5]]
opportunities.sort(key=lambda opp: opp.discount, reverse=True)
best = opportunities[0]
self.log(f"Planning Agent has identified the best deal has discount ${best.discount:.2f}")
if best.discount > self.DEAL_THRESHOLD:
self.messenger.alert(best)
self.log("Planning Agent has completed a run")
return best if best.discount > self.DEAL_THRESHOLD else None
return None |