#!/bin/bash

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

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

#=================================================
# RETRIEVE ARGUMENTS
#=================================================
ynh_script_progression --message="Retrieve arguments from the manifest"

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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Load settings" --weight=2

final_path=$(ynh_app_setting_get $app final_path)
is_public=$(ynh_app_setting_get $app is_public)
port=$(ynh_app_setting_get $app port)

#=================================================
# CHECK THE SYNTAX OF THE PATHS
#=================================================
ynh_script_progression --message="Check the syntax of the paths"

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)

#=================================================
# ACTIVATE MAINTENANCE MODE
#=================================================
ynh_script_progression --message="Activate maintenance mode"

path_url=$old_path
domain=$old_domain
ynh_maintenance_mode_ON

#=================================================
# 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

#=================================================
# MANAGE FAILURE OF THE SCRIPT
#=================================================

ynh_clean_setup () {
# Clean installation remaining that are not handle by the remove script.
	ynh_clean_check_starting
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# MODIFY URL IN NGINX CONF
#=================================================
ynh_script_progression --message="Modify url in nginx configuration" --weight=2

nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf

# Change the path in the nginx config file
if [ $change_path -eq 1 ]
then
	# Make a backup of the original nginx config file if modified
	ynh_backup_if_checksum_is_different "$nginx_conf_path"

	# Set global variables for nginx helper
	domain="$old_domain"
	path_url="$new_path"

	# Store path_url setting
	ynh_app_setting_set $app path_url "$path_url"

	# Create a dedicated nginx config
	ynh_add_nginx_config
fi

# Change the domain for nginx
if [ $change_domain -eq 1 ]
then
	# Delete file checksum for the old conf file location
	ynh_delete_file_checksum "$nginx_conf_path"
	mv $nginx_conf_path /etc/nginx/conf.d/$new_domain.d/$app.conf

	# Store file checksum for the new config file location
	ynh_store_file_checksum "/etc/nginx/conf.d/$new_domain.d/$app.conf"
fi

#=================================================
# UPDATE SSOWAT
#=================================================
ynh_script_progression --message="Reconfigure SSOwat"

if [ $is_public -eq 0 ]
then
	# If the app is private, viewing images stays publicly accessible.
	if [ "$new_path" == "/" ]; then
	    # If the path is /, clear it to prevent any error with the regex.
	    new_path=""
	fi
	# Modify the domain to be used in a regex
	domain_regex=$(echo "$new_domain" | sed 's@-@.@g')
	ynh_app_setting_set $app protected_regex "$domain_regex$new_path/stats$","$domain_regex$new_path/manifest.webapp$","$domain_regex$new_path/$","$domain_regex$new_path/d/.*$","$domain_regex$new_path/m/.*$"
fi

#=================================================
# SPECIFIC MODIFICATIONS
#=================================================
# REPLACE THE PATH IN THE CONFIG OF LUTIM
#=================================================

ynh_replace_string "\(^ *prefix.*=> '\).*" "\1$new_path'," "$final_path/lutim.conf"

#=================================================
# GENERIC FINALISATION
#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reload nginx" --weight=2

ynh_systemd_action --action=reload --service_name=nginx

#=================================================
# START AND CHECK LUTIM BOOTING
#=================================================
ynh_script_progression --message="Restart Lutim" --weight=3

# Wait for lutim to be fully started
ynh_systemd_action --action=restart --line_match="Manager.*started" --log_path="/var/log/$app/production.log" --timeout="120"

#=================================================
# DEACTIVE MAINTENANCE MODE
#=================================================
ynh_script_progression --message="Disable maintenance mode" --weight=5

path_url=$old_path
domain=$old_domain
ynh_maintenance_mode_OFF

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

ynh_script_progression --message="Change of url completed" --last