#!/bin/bash

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

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

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Upgrading source files..." --weight=18

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

# Download, check integrity, uncompress and patch the source from app.src
NETDATA_TMPDIR="$install_dir/netdata_install"
mkdir -p $NETDATA_TMPDIR
ynh_setup_source --dest_dir="$NETDATA_TMPDIR"
GO_TMPDIR="$install_dir/go_install"
mkdir -p $GO_TMPDIR
ynh_setup_source --source_id="go" --dest_dir="$GO_TMPDIR"

#=================================================
# SPECIFIC UPGRADE
#=================================================

# signal netdata to start saving its database
# this is handy if your database is big
pids=$(pidof netdata)
if [ -n "${pids}" ]; then
	kill -USR1 ${pids}
fi

export PATH="$GO_TMPDIR/bin:$PATH"
export GOPATH="$GO_TMPDIR/go/"
export HOME=${HOME:-"/root/"}
pushd "$NETDATA_TMPDIR"
    # the installer.sh script will append "netdata" after the --install-prefix arg
    ynh_exec_warn_less ./netdata-installer.sh --install-prefix /var/www/ --dont-wait --disable-cloud --disable-telemetry --stable-channel
popd

ynh_secure_remove --file=$NETDATA_TMPDIR
ynh_secure_remove --file=$GO_TMPDIR

# Specific configuration
configure_netdata

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=1

# Create a dedicated NGINX config
ynh_add_nginx_config

yunohost service add "$app" --description "Real-time performance and health monitoring" --log "$install_dir/var/log/netdata/error.log" "$install_dir/var/log/netdata/access.log" "$install_dir/var/log/netdata/debug.log"

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

ynh_systemd_action --service_name="$app" --action="restart" --log_path="$install_dir/var/log/$app/error.log"

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

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