Open robert-e-davidson3 opened 2 years ago
Displaying market outcomes:
UI already handles markets with only two outcomes. Crypto markets only have "Yes" and "No" outcomes. The files that process market data will need to change to remove all usages of NO_CONTEST...
constants. Trading and add or remove liquidity UIs will adapt fine.
The market structure only allows for one winning outcome winner
which is the outcomeId of the winning outcome. For convenience the market object has a flag hasWinner
to indicate that the market has been resolved.
The winner
property would need to be set to null
and hasWinner
set to true when the market has resolved without a winner. The fetcher contracts would need to indicate this non-winning resolution for the market. The packages/comps/src/utils/derived-market-data.ts
file processes winner and sets hasWinner
on the market object.
claimableWinnings
property on user object indicates if the user has any winnings that can be claimed. It's populated in populateClaimableWinnings
method in contract-calls
. This method would need to calculate the winnings based on user's outcome shares balance of the resolved market that has no winner.
After these changes the claim winnings buttons should appear in user's portfolio and allow them to claim winnings.
There's an interest in removing invalid as an outcome. When a market would resolve as invalid, it would instead pay out equally to all outcomes.
This involves some core changes because right now there is no inherent notion of invalid: it's just outcomes, one of which wins. There are also some mixins that need to be updated, as well as the Sports market factories.
The Grouped market factory needs to be updated as well but that's in purgatory (not sure if we'll release it) so it can be excluded from this ticket's scope. The Crypto market factory doesn't use invalid so it needn't be updated.
This requires changes in a few places:
AbstractMarketFactoryV3.sol
claimWinnings
method needs to be rewritten. Probably just tack on an invalid-wins check at the start then follow an alternate code path that iterates over all outcomes to pay them out equally.0xF..F
or0x0..1.
This impacts some methods:isMarketResolved
endMarket
Sport.sol
HasHeadToHeadMarket
HasSpreadMarket
HasOverUnderMarket
ResolvesByFiat
(contract name and file name differ by a plural)ResolvesByScore
(same)TokenNamesFromTeams
NFLMarketFactoryV3
NBAMarketFactoryV3
MMAMarketFactoryV3
MLBMarketFactoryV3
There are other market factories like NCAAFB but they aren't being used so I've excluded them.There are two broad approaches to take to changing the base code:
Copy-paste is easier but creates more technical debt.
In either case, the UI will have issues if the contract names aren't changed. The naming scheme is a little hacky but a couple of rules should be sufficient:
MMAMarketFactoryV3
:MMA
is the kind of markets it creates.MarketFactory
indicates that this contract is a market factory.V3
is the API version. This comes from the base classAbstractMarketFactoryV3
. The API version is relevant to the UI and many scripts.MMAMarketFactoryEqV3
, whereEq
indicates that invalid markets will pay out Equally to all outcomes.Subtasks: