#!/bin/bash

#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping $app's systemd service..." --weight=1

ynh_systemd_action --service_name="$app" --action="stop" --log_path="/var/log/$app/$app.log"

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Upgrading source files..." --weight=20

# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir="$install_dir" --full_replace=1 --keep="config/opensearch.yml config/jvm.options.d/yunohost.conf"

chmod -R o-rwx "$install_dir"
chown -R "$app:$app" "$install_dir"

#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating a configuration file..." --weight=1

ynh_add_config --template="opensearch.yml" --destination="$install_dir/config/opensearch.yml"
ynh_add_config --template="jvm.options" --destination="$install_dir/config/jvm.options.d/yunohost.options"

chmod 400 "$install_dir/config/opensearch.yml" "$install_dir/config/jvm.options.d/yunohost.options"
chown "$app:$app" "$install_dir/config/opensearch.yml" "$install_dir/config/jvm.options.d/yunohost.options"

#=================================================
# INCREASE MAX_MAP_COUNT
#=================================================
ynh_script_progression --message="Increasing maximum map count (sysctl)..."

if [ "${container:-}" != "lxc" ]; then # lxc doesn't allow sysctl to play with kernel options.
    # Increase the maximum number of files inotify can monitor.
    ynh_add_config --template="90-max_map_count-opensearch.conf" --destination="/etc/sysctl.d/"

    # Then, reload the kernel configuration.
    sysctl -p /etc/sysctl.d/90-max_map_count-opensearch.conf
fi

#=================================================
# REAPPLY SYSTEM CONFIGURATIONS
#=================================================
ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=1

# Create a dedicated systemd config
ynh_add_systemd_config
yunohost service add "$app" --description="OpenSearch - Open source distributed and RESTful search engine" --log="/var/log/$app/$app.log"

# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --non-append

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=1

ynh_systemd_action --service_name="$app" --action="start" --log_path="/var/log/$app/$app.log"

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression --message="Upgrade of $app completed" --last