物业维护请求智能体

import pandas as pd
from datetime import datetime

def assign_contractor(ticket, contractors):
    for c in contractors:
        if ticket['category'] in c['skills'] and c['available']:
            return c['name']
    return 'Unassigned'

def track_resolution(tickets):
    for t in tickets:
        if t['status'] == 'In Progress':
            t['sla_remaining'] = max(0, t['sla_hours'] - t['hours_elapsed'])
    return tickets

# Generate maintenance report