✨ Fetch winners in claiming closed state

.github/actions/install-dependencies/action.yml

@@ -0,0 +1,37 @@
+name: Install Node and package dependencies
+description: "Install Node dependencies with pnpm"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Use Node.js 20
+      uses: actions/setup-node@v4
+      with:
+        node-version: 20
+
+    - uses: pnpm/action-setup@v3
+      with:
+        version: 8.3.1
+        run_install: false
+
+    - name: Get pnpm cache directory
+      id: pnpm-cache-dir
+      shell: bash
+      run: echo "dir=$(pnpm store path)" >> $GITHUB_OUTPUT
+
+    - name: Cache PNPM
+      uses: actions/cache@v4
+      id: pnpm-cache
+      with:
+        path: |
+          ${{ steps.pnpm-cache-dir.outputs.dir }}
+        key: ${{ runner.os }}-node-${{ hashFiles('pnpm-lock.yaml') }}
+        restore-keys: ${{ runner.os }}-node-
+
+    - name: Install packages
+      shell: bash
+      run: pnpm install --frozen-lockfile
+
+    - name: Build everything in the monorepo
+      shell: bash
+      run: pnpm build

.github/workflows/CI.yml

@@ -0,0 +1,16 @@
+name: CI
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          clean: false
+      - name: Install Node and dependencies
+        uses: ./.github/actions/install-dependencies
+      - run: pnpm run lint

.gitignore

@@ -21,6 +21,9 @@ tsconfig.tsbuildinfo
 # Eslint cache
 .eslintcache
 
+# Build files
+.turbo
+
 # Generated by Certora
 .certora_*
 .last_confs

.npmrc

@@ -0,0 +1,7 @@
+use-lockfile-v6=true
+strict-peer-dependencies=false
+auto-install-peers=false
+dedupe-peer-dependents=false
+resolve-peers-from-workspace-root=false
+save-workspace-protocol=true
+resolution-mode=highest

README.md

@@ -1,33 +1,3 @@
-# Devcon Ticket Sale System
-
-## Running Hardhat node
-Change directory to `packages/contracts` and execute:
-```shell
-yarn node:run
-```
-This will start a Hardhat node, deploy the contracts and place initial bids using the first twenty auto-generated accounts.
-
-## Custom tasks
-A number of custom Hardhat tasks were defined to aid testing.
-
-### Managing local node
-- `yarn node:increase-time [--value <INT>]` - increase block time by *value* seconds, defaults to six hour
-- `yarn node:accounts` - print a list of available accounts
-
-### Interacting with AuctionRaffle contract
-
-#### Hardhat
-- `yarn hardhat:bid --account <STRING> --amount <STRING>` - using *account* place bid of *amount* ETH
-- `yarn hardhat:bid-random --amount <INT> [--account <INT>]` - using randomly generated accounts place *amount* of bids using funds from account with index *account* (defaults to `0`)
-- `yarn hardhat:settle-auction` - settle auction
-- `yarn hardhat:settle-raffle` - settle raffle using random numbers
-- `yarn hardhat:settle` - increase time, settle auction and raffle
-
-#### Arbitrum Rinkeby
-- `yarn rinkeby:generate-dotenv [--path <STRING>] [--count <INT>]` - generate .env file needed for other tasks, *path* - output path, *count* - number of private keys to generate
-- `yarn rinkeby:transfer-ether` - transfer ether from `DEPLOYER` to `PRIVATE_KEYS` accounts
-- `yarn rinkeby:init-bids` - place initial bids using `PRIVATE_KEYS` accounts
-
-#### Ethereum Mainnet
-- `yarn ethereum:generate-random-numbers --blocks <ARRAY> --secret <STRING>` - generate random numbers for raffle settlement, *blocks* - array of block numbers from which extract block hash (e.g. "[1234, 5678]"), *secret* - secret number represented as 32 bytes hex string
+# Devcon Ticket Sale System (Auction-Raffle)
 
+This repository houses the Auction-Raffle ticket sale system used for Devcon.

package.json

@@ -2,18 +2,14 @@
   "name": "devcon-raffle",
   "private": true,
   "version": "0.0.1",
+  "packageManager": "pnpm@8.3.1",
   "scripts": {
-    "lint": "wsrun -c lint",
-    "build": "wsrun -te -c build",
-    "test": "wsrun -c test",
-    "verify": "wsrun -m -c verify",
-    "update": "git submodule update --remote"
+    "lint": "turbo lint --filter=frontend",
+    "build": "turbo build",
+    "test": "turbo test",
+    "verify": "turbo verify"
   },
-  "workspaces": [
-    "packages/contracts",
-    "packages/frontend"
-  ],
   "devDependencies": {
-    "wsrun": "^5.2.4"
+    "turbo": "^1.13.2"
   }
 }

packages/contracts/.prettierrc.json

@@ -5,6 +5,15 @@
       "options": {
         "printWidth": 120
       }
+    },
+    {
+      "files": "*.ts",
+      "options": {
+        "semi": false,
+        "singleQuote": true,
+        "printWidth": 120,
+        "bracketSpacing": true
+      }
     }
   ]
 }

packages/contracts/README.md

@@ -1 +1,65 @@
 # Contracts
+
+## High-level Overview
+
+`AuctionRaffle.sol` is a combined auction and raffle system for Devcon ticket sales. At a high level, the contract progresses through the following phases.
+
+1. Initial phase: This is the initial state of the contract, before bidding starts.
+
+2. Bidding phase: When bidding opens after a configurable timestamp, the contract accepts bids from eligible wallets through the `bid` function. Alternatively, eligible wallets may also increase their existing bids using the `bump` function. The eligibility of a wallet is verified by an attestation mechanism that is hosted by the operator (see `contracts/verifier/ScoreAttestationVerifier.sol`). For Devcon 7, eligibility is determined by a Gitcoin passport score (also, see the [Gitcoin Passport Score Attestation](#gitcoin-passport-score-attestation) section below).
+
+3. Auction phase: After the bidding period has ended, the operator settles the auction by calling the `settleAuction` function, which determines the auction winners (the number of auction winners is configurable).
+
+4. Raffle phase: After the auction has settled, the operator begins the raffling phase by requesting a verifiable random number from Chainlink VRF. When the random number is delivered to the contract, the raffle winners are determined. The raffle winners are lazily evaluated using a Feistel shuffle to minimise gas usage (see: [Improving the Devcon Raffle](https://docs.fairy.dev/case-studies/improving-the-devcon-raffle)).
+
+5. Claim phase: After the raffle has settled, some participants may withdraw none, some, or all of their bid amounts depending on the outcome of the Auction Raffle.
+
+- Auction winners are not entitled to claim any amount.
+- The first raffle winner is the lucky winner of the _golden ticket_ and may use the `claim` function to withdraw their full bid amount.
+- All other raffle winners may withdraw their bid amount minus the reserve price.
+- Losers may withdraw their full bid amount (there was previously a non-refundable 2% fee, but that has now been removed).
+
+## Gitcoin Passport Score Attestation
+
+For this 2024's edition of Devcon, users must have possess a minimum score on Gitcoin Passport in order to bid for a ticket. The `frontend` package in this repository has a backend component that queries the Gitcoin Passport API and returns signed attestations that users must include with their bids. A sequence diagram of this attestation flow is supplied below.
+
+![passport_msd](./docs/auction_raffle_passport_msd.jpg)
+
+## Running Hardhat node
+
+Change directory to `packages/contracts` and execute:
+
+```shell
+pnpm node:run
+```
+
+This will start a Hardhat node, deploy the contracts and place initial bids using the first twenty auto-generated accounts.
+
+## Custom tasks
+
+A number of custom Hardhat tasks were defined to aid testing.
+
+### Managing local node
+
+- `pnpm node:increase-time [--value <INT>]` - increase block time by _value_ seconds, defaults to six hour
+- `pnpm node:accounts` - print a list of available accounts
+
+### Interacting with AuctionRaffle contract
+
+#### Hardhat
+
+- `pnpm hardhat:bid --account <STRING> --amount <STRING>` - using _account_ place bid of _amount_ ETH
+- `pnpm hardhat:bid-random --amount <INT> [--account <INT>]` - using randomly generated accounts place _amount_ of bids using funds from account with index _account_ (defaults to `0`)
+- `pnpm hardhat:settle-auction` - settle auction
+- `pnpm hardhat:settle-raffle` - settle raffle using random numbers
+- `pnpm hardhat:settle` - increase time, settle auction and raffle
+
+#### Arbitrum Rinkeby
+
+- `pnpm rinkeby:generate-dotenv [--path <STRING>] [--count <INT>]` - generate .env file needed for other tasks, _path_ - output path, _count_ - number of private keys to generate
+- `pnpm rinkeby:transfer-ether` - transfer ether from `DEPLOYER` to `PRIVATE_KEYS` accounts
+- `pnpm rinkeby:init-bids` - place initial bids using `PRIVATE_KEYS` accounts
+
+#### Ethereum Mainnet
+
+- `pnpm ethereum:generate-random-numbers --blocks <ARRAY> --secret <STRING>` - generate random numbers for raffle settlement, _blocks_ - array of block numbers from which extract block hash (e.g. "[1234, 5678]"), _secret_ - secret number represented as 32 bytes hex string