#!/bin/bash

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

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

#=================================================
# CHECK VERSION
#=================================================

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..."

ynh_systemd_action --service_name=$app --action="stop" --log_path=systemd --line_match="Stopped"

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..."

# If ldap_user doesn't exist, retrieve it or create it
if [[ -z "$ldap_user" ]]; then
	ldap_user="svc_${app}_ldap"
	ldap_password=$(ynh_string_random --length=8)
	ynh_app_setting_set "$app" ldap_user "$ldap_user"
	ynh_app_setting_set "$app" ldap_password "$ldap_password"
	yunohost user create $ldap_user --firstname "SvcWikijsLdap" --lastname "SvcWikijsLdap" --domain $domain --password $ldap_password -q 0
fi


ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies

#=================================================
# CREATE DEDICATED USER
#=================================================
#REMOVEME? ynh_script_progression --message="Making sure dedicated system user exists..."

# Create a dedicated user (if not existing)
#REMOVEME? ynh_system_user_create --username=$app --home_dir="$install_dir"

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..."

	config_file="$install_dir/config.yml"
	tmpdir="$(mktemp -d)"

	rsync -a "$config_file" "$tmpdir/."
	if [ -d "$install_dir/.ssh" ]; then
		rsync -a "$install_dir/.ssh" "$tmpdir/."
	fi
	if [ -d "$install_dir/data" ]; then
		rsync -a "$install_dir/data" "$tmpdir/."
	fi
	ynh_secure_remove --file="$install_dir"

	# Download, check integrity, uncompress and patch the source from app.src
	ynh_setup_source --dest_dir="$install_dir"

	rsync -a "$tmpdir/config.yml" "$install_dir/."
	if [ -d "$tmpdir/.ssh" ]; then
		rsync -a "$tmpdir/.ssh" "$install_dir/."
	fi
	if [ -d "$tmpdir/data" ]; then
		rsync -a "$tmpdir/data" "$install_dir/."
	fi
fi

chmod 750 "$install_dir"
chmod -R o-rwx "$install_dir"
chown -R $app:$app "$install_dir"

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..."

ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
ynh_use_nodejs

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..."

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC UPGRADE
#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating a configuration file..."

ynh_add_config --template="../conf/config.sample.yml" --destination="$install_dir/config.yml"

chmod 400 "$install_dir/config.yml"
chown $app:$app "$install_dir/config.yml"

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Upgrading systemd configuration..."

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..."

yunohost service add $app --description="$app daemon for Wiki.js" --log="/var/log/$app/$app.log"

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

ynh_systemd_action --service_name=$app --action="start" --log_path=systemd --line_match="HTTP Server:"

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

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