#!/usr/bin/env bash
#
# E2E CI: installs PR candidate on Truffle's MetaCoin and runs coverage
#
# Also verifies that everything works w/ truffle installed globally.
#

set -o errexit

# Get rid of any caches
sudo rm -rf node_modules
echo "NVM CURRENT >>>>>" && nvm current

# Use PR env variables (for forks) or fallback on local if PR not available
SED_REGEX="s/git@github.com:/https:\/\/github.com\//"

if [[ -v CIRCLE_PR_REPONAME ]]; then
  PR_PATH="https://github.com/$CIRCLE_PR_USERNAME/$CIRCLE_PR_REPONAME#$CIRCLE_SHA1"
else
  PR_PATH=$(echo "$CIRCLE_REPOSITORY_URL#$CIRCLE_SHA1" | sudo sed "$SED_REGEX")
fi

echo "PR_PATH >>>>> $PR_PATH"

# Install truffle and metacoin box
npm install -g truffle
npm install -g yarn

mkdir metacoin
cd metacoin
truffle unbox metacoin --force

# Install config with plugin
rm truffle-config.js
echo "module.exports={plugins:['solidity-coverage']}" > truffle-config.js
cat truffle-config.js

# Install and run solidity-coverage @ PR
npm init --yes
yarn add $PR_PATH --dev
npx truffle run coverage

# Test that coverage/ was generated
if [ ! -d "coverage" ]; then
  echo "ERROR: no coverage folder was created."
  exit 1
fi