Auction state

State_Machine

┌─────────┐
│InAuction│ ─┬──►  Failed { NotEnoughBidders }
└─────────┘  │
             │
             │    ┌─────────┐
             └──► │InWriting│ ──┬──►  Failed { WritingDeadlinePassed }
                  └─────────┘   │
                      ▲         │
                      │         │    ┌────────┐
                      │         └──► │InReview│
                      │              └───┬────┘
                      │                  │
                      │                  ▼
                      │                                    ┌──────┐
                      └──── yes ────  [Vetoed]  ─── no ──► │Passed│
                                                           └──────┘

A proposal enters the InAuction state upon creation.
If an auction does not have enough bidders, its status becomes Failed { NotEnoughBidders }.
If enough bidders are found, the status becomes InWriting.
If a writer submits a story after the end of the writing deadline, its status becomes Failed { WritingDeadlinePassed }.
If a writer submits a final version of a story within writing deadline, its status becomes InReview.
If more than half of the arbitration owners veto the story, the proposal moves back to the InWriting state and repeats steps 4-6.
If a proposal is reviewed without veto before the end of the writing deadline, the status becomes Passed.