#!/usr/bin/env bash
set -Eeuxo pipefail
trap 'echo "[deploy-db] failed at line $LINENO"; exit 1' ERR

: "${REMOTE_BASE:?missing REMOTE_BASE}"
: "${DB_DIR:?missing DB_DIR}"
: "${SSH_USER:?missing SSH_USER}"
: "${SSH_HOST:?missing SSH_HOST}"

SSH_OPTS='-i /root/.ssh/id_rsa -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -vv'
REMOTE_DIR="${REMOTE_BASE%/}/${DB_DIR}"
REMOTE_TARGET="${SSH_USER}@${SSH_HOST}"

ssh $SSH_OPTS "$REMOTE_TARGET" 'echo "[whoami] $(whoami) @ $(hostname) $(date -Is)"'

ssh $SSH_OPTS "$REMOTE_TARGET" "mkdir -p ${REMOTE_DIR}/{compose,env}"
rsync -avz --delete -e "ssh $SSH_OPTS" ci/prod/compose/  "$REMOTE_TARGET:${REMOTE_DIR}/compose/"
rsync -avz             -e "ssh $SSH_OPTS" ci/prod/.env.runtime "$REMOTE_TARGET:${REMOTE_DIR}/env/.env.runtime"

local_sum="$(sha256sum ci/prod/compose/db.yml | awk '{print $1}')"
remote_sum="$(ssh $SSH_OPTS "$REMOTE_TARGET" "sha256sum ${REMOTE_DIR}/compose/db.yml | awk '{print \$1}'")"
echo "[sha256] local=$local_sum remote=$remote_sum"

ssh $SSH_OPTS "$REMOTE_TARGET" REMOTE_DIR="$REMOTE_DIR" <<'EOSSH'
set -Eeuxo pipefail
cd "${REMOTE_DIR}/compose"
set -a
. ../env/.env.runtime
set +a
docker compose -f db.yml pull
docker compose -f db.yml up -d --remove-orphans
docker compose ps
date -Is | tee .last_deploy
logger -t deploy-db "db deployed at $(date -Is) in ${REMOTE_DIR}"
EOSSH