#!/bin/bash
. env.sh

export VERBOSE=false
export FABRIC_CFG_PATH=${PWD}

# Generates Org certs using cryptogen tool
function generateCerts() {
  which cryptogen
  if [ "$?" -ne 0 ]; then
    echo "cryptogen tool not found. exiting"
    exit 1
  fi
  echo
  echo "##########################################################"
  echo "##### Generate certificates using cryptogen tool #########"
  echo "##########################################################"

  if [ -d "crypto-config" ]; then
    rm -Rf crypto-config
  fi
  set -x
  cryptogen generate --config=./crypto-config.yaml
  res=$?
  set +x
  if [ $res -ne 0 ]; then
    echo "Failed to generate certificates..."
    exit 1
  fi
  echo
  echo "Generate CCP files for Org1 and Org2"
  ./ccp-generate.sh
}

function replacePrivateKey() {
  # sed on MacOSX does not support -i flag with a null extension. We will use
  # 't' for our back-up's extension and delete it at the end of the function
  ARCH=$(uname -s | grep Darwin)
  if [ "$ARCH" == "Darwin" ]; then
    OPTS="-it"
  else
    OPTS="-i"
  fi

  # Copy the template to the file that will be modified to add the private key
  cp $CONN_CONF_PATH/docker-compose-e2e-template.yaml $CONN_CONF_PATH/docker-compose-e2e.yaml

  # The next steps will replace the template's contents with the
  # actual values of the private key file names for the two CAs.
  CURRENT_DIR=$PWD
  cd crypto-config/peerOrganizations/org1.fabric-iot.edu/ca/
  PRIV_KEY=$(ls *_sk)
  cd "$CURRENT_DIR"
  sed $OPTS "s/CA1_PRIVATE_KEY/${PRIV_KEY}/g" $CONN_CONF_PATH/docker-compose-e2e.yaml
  cd crypto-config/peerOrganizations/org2.fabric-iot.edu/ca/
  PRIV_KEY=$(ls *_sk)
  cd "$CURRENT_DIR"
  sed $OPTS "s/CA2_PRIVATE_KEY/${PRIV_KEY}/g" $CONN_CONF_PATH/docker-compose-e2e.yaml
  # If MacOSX, remove the temporary backup of the docker-compose file
  if [ "$ARCH" == "Darwin" ]; then
    rm $CONN_CONF_PATH/docker-compose-e2e.yamlt
  fi
}

# Generate orderer genesis block, channel configuration transaction and
# anchor peer update transactions
function generateChannelArtifacts() {
  which configtxgen
  if [ "$?" -ne 0 ]; then
    echo "configtxgen tool not found. exiting"
    exit 1
  fi

  echo "##########################################################"
  echo "#########  Generating Orderer Genesis block ##############"
  echo "##########################################################"
  # Note: For some unknown reason (at least for now) the block file can't be
  # named orderer.genesis.block or the orderer will fail to launch!
  echo "CONSENSUS_TYPE="$CONSENSUS_TYPE
  set -x
  if [ "$CONSENSUS_TYPE" == "solo" ]; then
    configtxgen -profile TwoOrgsOrdererGenesis -channelID $SYS_CHANNEL -outputBlock ./channel-artifacts/genesis.block
  elif [ "$CONSENSUS_TYPE" == "kafka" ]; then
    configtxgen -profile SampleDevModeKafka -channelID $SYS_CHANNEL -outputBlock ./channel-artifacts/genesis.block
  elif [ "$CONSENSUS_TYPE" == "etcdraft" ]; then
    configtxgen -profile SampleMultiNodeEtcdRaft -channelID $SYS_CHANNEL -outputBlock ./channel-artifacts/genesis.block
  else
    set +x
    echo "unrecognized CONSESUS_TYPE='$CONSENSUS_TYPE'. exiting"
    exit 1
  fi
  res=$?
  set +x
  if [ $res -ne 0 ]; then
    echo "Failed to generate orderer genesis block..."
    exit 1
  fi
  echo
  echo "#################################################################"
  echo "### Generating channel configuration transaction 'channel.tx' ###"
  echo "#################################################################"
  set -x
  configtxgen -profile TwoOrgsChannel -outputCreateChannelTx ./channel-artifacts/channel.tx -channelID $CHANNEL_NAME
  res=$?
  set +x
  if [ $res -ne 0 ]; then
    echo "Failed to generate channel configuration transaction..."
    exit 1
  fi

  echo
  echo "#################################################################"
  echo "#######    Generating anchor peer update for Org1MSP   ##########"
  echo "#################################################################"
  set -x
  configtxgen -profile TwoOrgsChannel -outputAnchorPeersUpdate ./channel-artifacts/Org1MSPanchors.tx -channelID $CHANNEL_NAME -asOrg Org1MSP
  res=$?
  set +x
  if [ $res -ne 0 ]; then
    echo "Failed to generate anchor peer update for Org1MSP..."
    exit 1
  fi

  echo
  echo "#################################################################"
  echo "#######    Generating anchor peer update for Org2MSP   ##########"
  echo "#################################################################"
  set -x
  configtxgen -profile TwoOrgsChannel -outputAnchorPeersUpdate \
    ./channel-artifacts/Org2MSPanchors.tx -channelID $CHANNEL_NAME -asOrg Org2MSP
  res=$?
  set +x
  if [ $res -ne 0 ]; then
    echo "Failed to generate anchor peer update for Org2MSP..."
    exit 1
  fi
  echo
}

##利用cryptogen生成新的Certs文件
generateCerts
##根据e2e模版yaml生成新的yaml，并将生成的Cert文件替换到yaml的CA节点的路径中
replacePrivateKey
##利用configtxgen生成创世区块、创建通道
generateChannelArtifacts

echo "========= All GOOD, [fabric-iot] execution completed =========== "
