Ethgoal

Achieve goals with your friends' help, powered by the Ethereum blockchain.

NOTE: THESE CONTRACTS HAVE NOT YET BEEN AUDITED, USE AT YOUR OWN RISK!

How it works

Submit a "pledge" to the blockchain along with digital signatures of between 1 and 3 friends who agree to judge whether you've achieved your pledge by a given end date. You submit a deposit along with your pledge. This is denominated in DAI and can be any amount of your choosing.
After the the end date has passed your friends can vote to say you've passed or failed. They will by default 1 week to cast their votes - this is known as the "judgement period".
If the majority vote to say that you failed to meet your pledge then your deposit gets split between them and you get nothing back. If they vote to say that you've passed or they fail to vote then it is assumed that you passed and you thus get your deposit back.
You can then withdraw the DAI due to you at any time after the pledge judgement period has passed.

You can have any number of pledges open at a time.

Note: on non-mainnet networks we deploy MintableToken, a simple ERC-20 token which allows for unlimited minting.

Chai integration

On mainnet, when you submit your deposit it gets deposited in a Bank contract which will actually send it to Chai to earn interest - this way we don't need to charge the users any fees upfront!

Note: on non-mainnet networks we deploy DevChai, a mock Chai implementation that simply mints more MintableTokens.

Architecture

Key contracts

Controller.sol (non-upgradeable) - the main contract users interact with.
Bank.sol (upgradeable) - handles user token deposits and withdrawals and speaks to Chai.
Settings.sol (upgradeable) - all other contracts use this to discover each other.

Upgradeability

The upgradeability architecture is implemented in Proxy.sol and is based on the OpenZepellin eternal storage pattern.

However, an ability to prevent future upgrades has been added (see the freezeImplementation() method). This means that the admins will be able to make the code truly immutable at any point in time once they are confident there are no more upgrades needed.

For devs

Run a devnet:

yarn devnet

Deploy contracts locally:

yarn deploy:local

Run tests:

yarn test

Run tests with coverage:

yarn coverage

LICENSE

AGPLv3

Ethgoal
Copyright (C) 2020 [Ramesh Nair](https://github.com/hiddentao)

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.

hiddentao / ethgoal