#!/usr/bin/env bash

# Exit script as soon as a command fails.
set -o errexit

# Executes cleanup function at script exit.
trap cleanup EXIT

cleanup() {
  # Kill the ganache instance that we started (if we started one and if it's still running).
  if [ -n "$ganache_pid" ] && ps -p $ganache_pid > /dev/null; then
    kill -9 $ganache_pid
  fi
}

if [ "$SOLIDITY_COVERAGE" = true ]; then
  ganache_port=8555
else
  ganache_port=8545
fi

ganache_running() {
  nc -z localhost "$ganache_port"
}

start_ganache() {
  # We define 10 accounts with balance 1M ether, needed for high-value tests.
  local accounts=(
    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501200,1000000000000000000000000"
    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201,1000000000000000000000000"
    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501202,1000000000000000000000000"
    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501203,1000000000000000000000000"
    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501204,1000000000000000000000000"
    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501205,1000000000000000000000000"
    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501206,1000000000000000000000000"
    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501207,1000000000000000000000000"
    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501208,1000000000000000000000000"
    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501209,1000000000000000000000000"
  )

  if [ "$SOLIDITY_COVERAGE" = true ]; then
    npx ganache-cli-coverage --emitFreeLogs true --allowUnlimitedContractSize true --gasLimit 0xfffffffffff --port "$ganache_port" "${accounts[@]}" > /dev/null &
  else
    npx ganache-cli --gasLimit 0xfffffffffff --port "$ganache_port" "${accounts[@]}" > /dev/null &
  fi

  ganache_pid=$!

  echo "Waiting for ganache to launch on port "$ganache_port"..."

  while ! ganache_running; do
    sleep 0.1 # wait for 1/10 of the second before check again
  done

  echo "Ganache launched!"
}

if ganache_running; then
  echo "Using existing ganache instance"
else
  echo "Starting our own ganache instance"
  start_ganache
fi

npx truffle version

if [ "$SOLIDITY_COVERAGE" = true ]; then
  npx solidity-coverage

  if [ "$CONTINUOUS_INTEGRATION" = true ]; then
    cat coverage/lcov.info | npx coveralls
  fi
else
  npx truffle test "$@"
fi
