AlgoCash

Algo Cash specifically uses an algorithmic approach to manage the supply of tokens according to a predetermined logic. The algorithm is in charge of balancing stablecoin supply to fluctuating demand, ensuring that the token price remains relatively stable.

Code Structure

In this project, the 3 most important contracts are asset, treasure and boradroom.

Asset

From asset contract, we can instantiate 3 tokens which would be used in the project, ALC, ALB and ALS.

Treasure

The Treasury contract handles bond（ALC） purchases and redemptions

The Algo Cash Treasury exists to enable bond-to-cash redemptions. Bonds redeemed via the Treasury automatically returns the user an equal number of ALC, provided that: 1) the oracle price of ALC is above 1 USD (could be set to any price of any asset), and 2) the Treasury contract has a positive balance of ALC.

Disallowing redemptions when the ALC price is below 1 USD prevents bond holders from prematurely cutting their losses and creating unnecessary downward pressure on the price of ALC.

Boardroom

The Boardroom contract handles dividend claims from Share holders

The Boardroom allows ALS holders to claim excess ALC minted by the protocol. Holders of ALS can stake their Shares to the Boardroom contract, which by doing so, they can claim a pro-rata share of ALC assigned to the Boardroom.

Deployment

In Polkadotjs-ui, we use uplaod & deploy to deploy the asset, oracle and treasure contacts. With asset contract, we can create Cash (ALC) and Bond (ALB) token instance. In treasure contract, we set ALC, ALB, oracle and decimal (10000000000) as paras.

Instruction

Build Dependencies

Ubuntu/Debian:
sudo apt update
sudo apt install -y git clang curl libssl-dev llvm libudev-dev

macOS:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
brew update
brew install openssl

Rust Developer Environment

Automated getsubstrate.io Script

curl https://getsubstrate.io -sSf | bash -s -- --fast

Manual Rust Configuration

curl https://sh.rustup.rs -sSf | sh
source ~/.cargo/env

rustup default stable
rustup update
rustup update nightly
rustup target add wasm32-unknown-unknown --toolchain nightly

toolchain

rustup component add rust-src --toolchain nightly
rustup target add wasm32-unknown-unknown --toolchain nightly

ink!

install binaryen

Ubuntu/Debian:
sudo apt install binaryen

macOS:
brew install binaryen

cargo-contract

cargo install --force cargo-contract

compile

1: git clone https://github.com/ReserveLabs/AlgoCash.git
2: cd AlgoCash
2: npm install
3: npx redspot compile

deploy

1: npx redspot run scripts/deploy.ts

test

cargo install europa --git https://github.com/patractlabs/europa --locked --force
europa --tmp

1: npx redspot test tests/distributor.test.ts
2: npx redspot test tests/boardroom.test.ts
3: npx redspot test tests/treasury.test.ts

Docker

wget dl.veim.cn/download/algocash/europa-algocash.tar.gz

gunzip europa-algocash.tar.gz

docker load -i europa-algocash.tar

$ docker images

REPOSITORY	TAG	IMAGE ID	CREATED	SIZE
europa-algocash	1.0.0	bc54f6339fb1	14 hours ago	4.39GB

docker run -d --name europa-node europa-algocash:1.0.0 europa -d database

docker exec -it europa-node bash

cd github/AlgoCash/

test cases:

1: npx redspot test tests/distributor.test.ts

2: npx redspot test tests/boardroom.test.ts

3: npx redspot test tests/treasury.test.ts