#!/bin/bash

# Exit on command errors and treat unset variables as an error
set -eu

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

source /usr/share/yunohost/helpers

#=================================================
# RETRIEVE ARGUMENTS
#=================================================

old_domain=$YNH_APP_OLD_DOMAIN
old_path=$YNH_APP_OLD_PATH

new_domain=$YNH_APP_NEW_DOMAIN
new_path=$YNH_APP_NEW_PATH

app=$YNH_APP_INSTANCE_NAME

portNginx=$(ynh_find_port 8080)
portUnicorn=$(ynh_find_port 9080)

#=================================================
# CHECK PATHS SYNTAX
#=================================================

test -n "$old_path" || old_path="/"
test -n "$new_path" || new_path="/"
new_path=$(ynh_normalize_url_path $new_path)
old_path=$(ynh_normalize_url_path $old_path)

# Check domain/path availability
sudo yunohost app checkurl "${new_domain}${new_path}" -a "$app" \
    || ynh_die "Path not available: ${new_domain}${new_path}"

#=================================================
# CHECK WHICH PARTS SHOULD BE CHANGED
#=================================================

change_domain=0
if [ "$old_domain" != "$new_domain" ]
then
	change_domain=1
fi

change_path=0
if [ "$old_path" != "$new_path" ]
then
	change_path=1
fi

#doc in: https://docs.gitlab.com/omnibus/settings/configuration.html#configuring-the-external-url-for-gitlab

# Gitlab configuration
nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf
gitlab_conf_path=/etc/gitlab/gitlab.rb

if [ $change_path -eq 1 ]
then
  sudo gitlab-ctl stop unicorn
  sudo gitlab-ctl stop sidekiq

  ynh_replace_string "location ${old_path%/}/" "location ${new_path%/}/" "$nginx_conf_path"
  
  ynh_replace_string "https://$old_domain${old_path%/}" "https://$old_domain${new_path%/}" "$gitlab_conf_path"
fi

# Change the domain for nginx
if [ $change_domain -eq 1 ]
then
  mv $nginx_conf_path /etc/nginx/conf.d/$new_domain.d/$app.conf
  
  ynh_replace_string "https://$old_domain" "https://$new_domain" "$gitlab_conf_path"
fi

if [ $change_domain -eq 1 ] || [ $change_path -eq 1 ]
then
  sudo gitlab-ctl reconfigure
fi

if [ $change_path -eq 1 ]
then
  sudo gitlab-ctl restart
fi