#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================
source _common.sh
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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=1

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
superuser=$(ynh_app_setting_get --app=$app --key=superuser)
password=$(ynh_app_setting_get --app=$app --key=password)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
port=$(ynh_app_setting_get --app=$app --key=port)
stream_port=$(ynh_app_setting_get --app=$app --key=stream_port)

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

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# STOP TVHEADEND SERVICE
#=================================================
ynh_script_progression --message="Stopping Tvheadend service..." --weight=1

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

#=================================================
# MODIFY URL IN NGINX CONF
#=================================================
ynh_script_progression --message="Updating NGINX web server configuration..." --weight=1

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

# Change the path in the nginx config file
if [ $change_path -eq 1 ]
then
    # Make a backup of the original nginx config file if modified
    ynh_backup_if_checksum_is_different --file="$nginx_conf_path"
    # Set global variables for nginx helper
    domain="$old_domain"
    path_url="$new_path"
    # Create a dedicated nginx config
    ynh_add_nginx_config
fi

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

#=================================================
# SPECIFIC MODIFICATIONS
#=================================================
# ...
#=================================================
ynh_script_progression --message="Updating Tvheadend configuration..." --weight=1

ynh_backup_if_checksum_is_different --file="/etc/default/tvheadend"
cp ../conf/tvheadend /etc/default/tvheadend
ynh_replace_string --match_string="__CONF_DIR__" --replace_string="$final_path/.hts/tvheadend" --target_file="/etc/default/tvheadend"
ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="/etc/default/tvheadend"
ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="/etc/default/tvheadend"
ynh_replace_string --match_string="__STREAM_PORT__" --replace_string="$stream_port" --target_file="/etc/default/tvheadend"
ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_file="/etc/default/tvheadend"
ynh_store_file_checksum --file="/etc/default/tvheadend"

#=================================================
# GENERIC FINALISATION
#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=1

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# START TVHEADEND SERVICE
#=================================================
ynh_script_progression --message="Starting $app service..." --weight=1

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

#=================================================
# END OF SCRIPT
#=================================================
ynh_script_progression --message="Change of URL completed for Tvheadend" --last