#
# documentSignoffDemo.py
#
# Example of a state machine modeling the state of a document in a document
# control system, using named state transitions
#
import statemachine
import documentsignoffstate

print(
    "\n".join(
        t.__name__ for t in documentsignoffstate.DocumentRevisionState.transitions()
    )
)


class Document(documentsignoffstate.DocumentRevisionStateMixin):
    def __init__(self):
        self.initialize_state(documentsignoffstate.New)


def run_demo():
    import random

    doc = Document()
    print(doc)

    # begin editing document
    doc.create()
    print(doc)
    print(doc.state.description)

    while not isinstance(doc._state, documentsignoffstate.Approved):

        print("...submit")
        doc.submit()
        print(doc)
        print(doc.state.description)

        if random.randint(1, 10) > 3:
            print("...reject")
            doc.reject()
        else:
            print("...approve")
            doc.approve()

        print(doc)
        print(doc.state.description)

    doc.activate()
    print(doc)
    print(doc.state.description)


if __name__ == "__main__":
    run_demo()