#!/bin/bash

set -eu
trap 'kill -9 -- -$$' SIGINT EXIT SIGTERM

VALIDATORS_START=${1:-15}
VALIDATORS_NUM=${2:-5}
VALIDATORS_TOTAL=${3:-25}

SRCDIR=${PRYSM_PATH:-"prysm"}

command -v bazel > /dev/null || { echo "install bazel build tool first (https://docs.bazel.build/versions/master/install.html)"; exit 1; }
command -v go > /dev/null || { echo "install go first (https://golang.org/doc/install)"; exit 1; }

# This script assumes amd64. Prysm builds for other architectures, but keeping it simple
# for this start script.
OS=""
if [[ "$OSTYPE" == "linux-gnu" ]]; then
  OS+="linux_amd64"
elif [[ "$OSTYPE" == "darwin"* ]]; then
  OS+="darwin_amd64"
else
  # Windows builds do work, but it would make this script more complicated.
  # Allowing for Mac and Linux only for the moment.
  echo "Only Mac and Linux builds supported at this time"
fi

[[ -d "$SRCDIR" ]] || {
  git clone https://github.com/prysmaticlabs/prysm.git "$SRCDIR"
  pushd "$SRCDIR"
  bazel build --define ssz=minimal //beacon-chain //validator
  popd
}

set -x

cd "$SRCDIR"

rm -rf /tmp/beacon-prysm

"$(bazel info bazel-bin)/beacon-chain/${OS}_stripped/beacon-chain" \
  --datadir /tmp/beacon-prysm \
  --pprof --verbosity=debug \
  --bootstrap-node= \
  --peer=$(cat ../data/bootstrap_nodes.txt) \
  --interop-eth1data-votes \
  --deposit-contract=0xD775140349E6A5D12524C6ccc3d6A1d4519D4029 \
  --interop-genesis-state ../data/state_snapshot.ssz &

sleep 3

"$(bazel info bazel-bin)/validator/${OS}_pure_stripped/validator" \
  --interop-start-index=$VALIDATORS_START \
  --interop-num-validators=$VALIDATORS_NUM