#!/bin/bash

. /etc/shlib

include common
include pretty


is-valid-mailcow-root-dir() {
    local dir="$1"
    (
        [ -e "$dir" ] &&
        cd "$dir" &&
        [ -e ".git" ]
    )
}

## find installation
MAILCOW_ROOT=${MAILCOW_ROOT:-/opt/mailcow-dockerized}
MYSQL_CONTAINER=${MYSQL_CONTAINER:-mailcowdockerized_mysql-mailcow_1}


## check ok

is-valid-mailcow-root-dir "$MAILCOW_ROOT" || {
    err "Directory '$MAILCOW_ROOT' is not a valid mailcow root installation directory."
    echo "  You might want to setup \$MAILCOW_ROOT to the proper" \
         "location of your mailcow root install" >&2
    exit 1
}



BACKUP_SERVER=${BACKUP_SERVER:-core-06.0k.io:10023}
DOMAIN=$(cat "$MAILCOW_ROOT/.env" | grep ^MAILCOW_HOSTNAME= | cut -f 2 -d =) || {
    err "Couldn't find MAILCOW_ROOT in file \"$MAILCOW_ROOT/.env\"."
    exit 1
}


## get MYSQL_ROOT_PASSWORD

MYSQL_ROOT_PASSWORD=$(cat "$MAILCOW_ROOT/.env" | grep ^DBROOT= | cut -f 2 -d =) || {
    err "Couldn't find DBROOT in file \"$MAILCOW_ROOT/.env\"."
    exit 1
}


container_id=$(docker ps -f name="$MYSQL_CONTAINER" --format "{{.ID}}")
if [ -z "$container_id" ]; then
    err "Couldn't find docker container named '$MYSQL_CONTAINER'."
    exit 1
fi


export MYSQL_ROOT_PASSWORD
export MYSQL_CONTAINER
export BACKUP_SERVER
export DOMAIN


(
    cd /srv/charm-store/rsync-backup
    bash ./hooks/install.d/60-install.sh
) || {
    echo "rsync-backup failed to install."
    exit 1
}

(
    cd /srv/charm-store/mysql
    bash ./hooks/install.d/60-backup.sh
) || {
    echo "mysql dump failed to install."
    exit 1
}

if ! sources=$(shyaml get-values default.sources < /etc/mirror-dir/config.yml); then
    echo "Couldn't query 'default.sources' in '/etc/mirror-dir/config.yml'." >&2
    exit 1
fi

if ! echo "$sources" | grep "^/var/lib/docker/volumes/\*_vmail{,-attachments-vol}-\*/_data$" 2>/dev/null; then
    sed -i '/sources:/a\  - "/var/lib/docker/volumes/*_vmail{,-attachments-vol}-*/_data"' \
        /etc/mirror-dir/config.yml
fi


dest="$BACKUP_SERVER"
dest="${dest%/*}"
dest="${dest%%:*}"

echo "Contacting '$dest' host, to add key in authorized key:"
ssh "root@${dest}" -- compose-add-rsync-key "\"$DOMAIN\"" "\"$(cat /var/lib/rsync/.ssh/id_rsa.pub)\""