90 lines
3.0 KiB
Python
90 lines
3.0 KiB
Python
import datetime
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class State():
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def __init__(self, hit_id):
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self.time = datetime.datetime.now()
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self.hit_id = params['hit_id']
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def transition(self, transitionName, params = {}):
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raise Exception("Not implemented")
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class StateMachine:
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def __init__(self, initalState):
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self.history = [('init',initialState)]
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def current(self):
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return self.history[-1][1]
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def transition(self, transitionName, params):
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# TODO: update Store & Interface
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if transitionName not in self.current().availableTransitions:
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raise Exception("Invalid transition")
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newState = self.current().transition(transitionName, params)
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if not newState:
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raise RuntimeException(f"Invalid transition {transitionName} for {self.current()}")
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self.history.append((transitionName, newState))
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def getStateForHit(self, hit_id, stateCls = None):
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states = [s for s in self.history if s[1].hit_id == hit_id and (stateCls is None or isinstance(s[1], stateCls))]
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if len(states < 1):
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return None
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return states[-1]
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class HITCreated(State):
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availableTransitions = ['accept']
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self.state = None
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self.fee = None
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self.hit_created = None
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self.hit_opened = None
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self.hit_submitted = None
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def transition(self, transitionName, params = {}):
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if transitionName == 'accept':
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return HITAssigned(params['hit_id'], params['assignment_id'])
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class HITAssigned(State):
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availableTransitions = ['reject', 'abandon', 'submit']
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def __init__(self, hit_id):
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self.assignment_id = None
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self.worker_id = None
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self.ip = None
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self.location = None
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self.browser = None
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self.os = None
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self.resolution = None
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def transition(self, transitionName, params = {}):
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if transitionName == 'reject' or transitionName == 'abandon':
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return HITAbandonedRejected(params['hit_id'])
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if transitionName == 'submit':
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return HITSubmitted(params['hit_id'])
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class HITAbandonedRejected(State):
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availableTransitions = ['accept']
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def transition(self, transitionName, params = {}):
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if transitionName == 'accept':
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return HITAssigned(params['hit_id'])
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class HITSubmitted(State):
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availableTransitions = ['scan']
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def transition(self, transitionName, params = {}):
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if transitionName == 'scan':
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return Scanning(params['hit_id'])
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class Scanning(State):
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availableTransitions = ['scan_complete', 'scan_failed']
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def transition(self, transitionName, params = {}):
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if transitionName == 'scan_complete':
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return ImageAvailable(params['hit_id'])
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if transitionName == 'scan_failed':
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raise Exception("Scan failed, unknown state")
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class ImageAvailable(State):
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availableTransitions = ['create_hit']
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def transition(self, transitionName, params = {}):
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if transitionName == 'create_hit':
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return HITCreated(params['hit_id'])
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