#!/usr/bin/env bash

# Deployment script - intended to run on Moonstream Ethereum node control server

# Colors
C_RESET='\033[0m'
C_RED='\033[1;31m'
C_GREEN='\033[1;32m'
C_YELLOW='\033[1;33m'

# Logs
PREFIX_INFO="${C_GREEN}[INFO]${C_RESET} [$(date +%d-%m\ %T)]"
PREFIX_WARN="${C_YELLOW}[WARN]${C_RESET} [$(date +%d-%m\ %T)]"
PREFIX_CRIT="${C_RED}[CRIT]${C_RESET} [$(date +%d-%m\ %T)]"

# Main
AWS_DEFAULT_REGION="${AWS_DEFAULT_REGION:-us-east-1}"
APP_DIR="${APP_DIR:-/home/ubuntu/moonstream}"
APP_NODES_DIR="${APP_DIR}/nodes"
SECRETS_DIR="${SECRETS_DIR:-/home/ubuntu/moonstream-secrets}"
PARAMETERS_ENV_PATH="${SECRETS_DIR}/app.env"
SCRIPT_DIR="$(realpath $(dirname $0))"
BLOCKCHAIN="ethereum"

# Parameters scripts
CHECKENV_PARAMETERS_SCRIPT="${SCRIPT_DIR}/parameters.bash"
CHECKENV_NODES_CONNECTIONS_SCRIPT="${SCRIPT_DIR}/nodes-connections.bash"

# Nodes server service file
NODES_SERVER_SERVICE_FILE="moonstreamnodes.service"

# Ethereum geth service file
ETHEREUM_GETH_SERVICE_FILE="geth.service"

set -eu

echo
echo
echo -e "${PREFIX_INFO} Building executable server of moonstreamnodes with Go"
EXEC_DIR=$(pwd)
cd "${APP_NODES_DIR}/server"
HOME=/root /usr/local/go/bin/go build -o "${APP_NODES_DIR}/server/moonstreamnodes" "${APP_NODES_DIR}/server/main.go"
cd "${EXEC_DIR}"

echo
echo
echo -e "${PREFIX_INFO} Retrieving deployment parameters"
mkdir -p "${SECRETS_DIR}"
> "${PARAMETERS_ENV_PATH}"
bash "${CHECKENV_PARAMETERS_SCRIPT}" -vn -p "moonstream" -o "${PARAMETERS_ENV_PATH}"

echo
echo
echo -e "${PREFIX_INFO} Updating nodes connection parameters"
bash "${CHECKENV_NODES_CONNECTIONS_SCRIPT}" -v -f "${PARAMETERS_ENV_PATH}"

echo
echo
LOCAL_IP="$(ec2metadata --local-ipv4)"
echo -e "${PREFIX_INFO} Replacing current node IP environment variable with local IP ${C_GREEN}${LOCAL_IP}${C_RESET}"
sed -i "s|MOONSTREAM_NODE_ETHEREUM_IPC_ADDR=.*|MOONSTREAM_NODE_ETHEREUM_IPC_ADDR=\"$LOCAL_IP\"|" "${PARAMETERS_ENV_PATH}"

echo
echo
echo -e "${PREFIX_INFO} Replacing existing moonstreamnodes service definition with ${NODES_SERVER_SERVICE_FILE}"
chmod 644 "${SCRIPT_DIR}/${NODES_SERVER_SERVICE_FILE}"
cp "${SCRIPT_DIR}/${NODES_SERVER_SERVICE_FILE}" "/etc/systemd/system/${NODES_SERVER_SERVICE_FILE}"
systemctl daemon-reload
systemctl restart "${NODES_SERVER_SERVICE_FILE}"
systemctl status "${NODES_SERVER_SERVICE_FILE}"

echo
echo
echo -e "${PREFIX_INFO} Replacing existing Ethereum Geth service definition with ${ETHEREUM_GETH_SERVICE_FILE}"
chmod 644 "${SCRIPT_DIR}/${ETHEREUM_GETH_SERVICE_FILE}"
cp "${SCRIPT_DIR}/${ETHEREUM_GETH_SERVICE_FILE}" "/etc/systemd/system/${ETHEREUM_GETH_SERVICE_FILE}"
systemctl daemon-reload
systemctl disable "${ETHEREUM_GETH_SERVICE_FILE}"
systemctl status "${ETHEREUM_GETH_SERVICE_FILE}"