manifold/common/contract.ts

import { Answer } from './answer'

export type Contract = {
  id: string
  slug: string // auto-generated; must be unique

  creatorId: string
  creatorName: string
  creatorUsername: string
  creatorAvatarUrl?: string // Start requiring after 2022-03-01

  question: string
  description: string // More info about what the contract is about
  tags: string[]
  lowercaseTags: string[]
  visibility: 'public' | 'unlisted'

  outcomeType: 'BINARY' | 'MULTI' | 'FREE_RESPONSE'
  multiOutcomes?: string[] // Used for outcomeType 'MULTI'.
  answers?: Answer[] // Used for outcomeType 'FREE_RESPONSE'.

  mechanism: 'dpm-2'
  phantomShares?: { [outcome: string]: number }
  pool: { [outcome: string]: number }
  totalShares: { [outcome: string]: number }
  totalBets: { [outcome: string]: number }

  createdTime: number // Milliseconds since epoch
  lastUpdatedTime: number // If the question or description was changed
  closeTime?: number // When no more trading is allowed

  isResolved: boolean
  resolutionTime?: number // When the contract creator resolved the market
  resolution?: string
  resolutionProbability?: number // Used for BINARY markets resolved to MKT
  resolutions?: { [outcome: string]: number } // Used for outcomeType FREE_RESPONSE resolved to MKT
  closeEmailsSent?: number

  volume24Hours: number
  volume7Days: number
}

export type outcomeType = 'BINARY' | 'MULTI' | 'FREE_RESPONSE'

export const MAX_QUESTION_LENGTH = 480
export const MAX_DESCRIPTION_LENGTH = 10000
export const MAX_TAG_LENGTH = 60