ContestContract

Helps people contribute money to a project, and choose judges to distribute it for various solutions.

Deploy

when deploy it is need to pass parameters in to init method Params:

name	type	description
stagesCount	uint256	count of stages for Contest
stagesMinAmount	uint256	array of minimum amount that need to reach at each stage. length array should be the same as stagesCount
contestPeriodInSeconds	uint256	duration in seconds for contest period(exclude before reach minimum amount)
votePeriodInSeconds	uint256	duration in seconds for voting period
revokePeriodInSeconds	uint256	duration in seconds for revoking period
percentForWinners	uint256[]	array of values in percentages of overall amount that will gain winners
judges	address[]	array of judges' addresses. if empty than everyone can vote

Settings

name	type	value	description
revokeFee	uint256	10e4	10% mul at 1e6. penalty for revoke tokens

Overview

once installed will be use methods:

method name	called by	contract	description
isContestOnline	anyone	boths	Checking online Contest
pledge	anyone	Constest.sol only	can be used to send external token into the contract, and issue internal token balance
pledgeETH	anyone	ConstestETHOnly.sol only	can be used to send ETH into the contract, and issue internal token balance
delegate	anyone outside the contestant list	boths	user can delegate own vote
vote	anyone on the judge list (if judgelist empty anyone outside the contestant list)	boths	vote for contestant
claim	anyone on the contestant list	boths	claim funds
enter	anyone	boths	sender is become a contestant
leave	anyone on the contestant list	boths	sender leave from contest
revoke	anyone outside the contestant list	boths	revoke own vote or delegation

Methods

isContestOnline

Checking online Contest Params:

name	type	description
stageID	uint256	Stage number

pledge

can be used only with Constest.sol to send external token into the contract, and issue internal token balance Params:

name	type	description
amount	uint256	amount to pledge
stageID	uint256	Stage number

pledgeETH

can be used only with ConstestETHOnly.sol to send ETH into the contract, and issue internal token balance Note that ETH need to send with transaction/ not directly to contract via native recieve() Params:

name	type	description
amount	uint256	amount to pledge
stageID	uint256	Stage number

delegate

Params:

name	type	description
judge	address	address of judge which user want to delegate own vote
stageID	uint256	Stage number

vote

Params:

name	type	description
contestantAddress	address	address of contestant which user want to vote
stageID	uint256	Stage number

claim

Params:

name	type	description
stageID	uint256	Stage number

enter

Params:

name	type	description
stageID	uint256	Stage number

leave

Params:

name	type	description
stageID	uint256	Stage number

revoke

Params:

name	type	description
stageID	uint256	Stage number

Lifecycle of Contest

• creation Contest. emitting event ContestStart. Starting Contest Period with StageID = 0
  • anyone can enter to contest calling method enter() and become contestant
  • anyone can leave to contest calling method leave() and remove itself from contestant list
  • anyone can pledge smth to contest calling method pledge() if didn't not become contestant earlier
• as soon as pledging by people become more than "stagesMinAmount" Contest Period will be extended for contestPeriodInSeconds seconds. and stop there
  • emitting StageStartAnnounced
• starting Voting period for votePeriodInSeconds seconds.
  • judge can vote for contestants
  • if judgeList was empty then anyone who pledged before can vote
  • anyone who pledged before can revoke own tokens with gradually increased penalty from 0 to revokeFee
• starting Revoking period for revokePeriodInSeconds seconds.
  • anyone who pledged before can revoke own tokens with revokeFee penalty
• Stage completed.(after any request with stageID).
  • emitting ContestWinnerAnnounced
  • if winners exists, then
    • reward winners
    • reward losers (if left smth from winners) they will get equally
  • if winners does not exists, then all who pledged will get equally
  • next stage will begin if current stage < stagesCount