#!/bin/bash

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

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


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

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
is_public=$(ynh_app_setting_get --app=$app --key=is_public)
final_path=$(ynh_app_setting_get --app=$app --key=final_path) || ynh_die "This path already contains a folder"

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

### This helper will compare the version of the currently installed app and the version of the upstream package.
### $upgrade_type can have 2 different values
### - UPGRADE_APP if the upstream app version has changed
### - UPGRADE_PACKAGE if only the YunoHost package has changed
### ynh_check_app_version_changed will stop the upgrade if the app is up to date.
### UPGRADE_APP should be used to upgrade the core app only if there's an upgrade to do.
upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================

ynh_script_progression --message="Ensuring downward compatibility..." --time --weight=1

# Fix is_public as a boolean value
if [ "$is_public" = "Yes" ]; then
	ynh_app_setting_set --app=$app --key=is_public --value=1
	is_public=1
elif [ "$is_public" = "No" ]; then
	ynh_app_setting_set --app=$app --key=is_public --value=0
	is_public=0
fi

#=================================================
# Backup squlite
#=================================================
sudo cp -avr $final_path/association.sqlite /tmp/association.sqlite
sudo cp -avr $final_path/www/squelettes /tmp/squelettes
#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --time --weight=1

# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
	# restore it if the upgrade fails
	ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

# #=================================================
# # CHECK THE PATH
# #=================================================

# # Normalize the URL path syntax
# # N.B. : this is for app installations before YunoHost 2.7
# # where this value might be something like /foo/ or foo/
# # instead of /foo ....
# # If nobody installed your app before 2.7, then you may
# # safely remove this line
# path_url=$(ynh_normalize_url_path --path_url=$path_url)


# final_path=/var/www/$app
# test ! -e "$final_path" || ynh_die "This path already contains a folder"

# # Normalize the url path syntax
# path_url=$(ynh_normalize_url_path $path_url)

# # Check web path availability
# ynh_webpath_available $domain $path_url
# # Register (book) web path
# ynh_webpath_register $app $domain $path_url

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..." --time --weight=1

ynh_install_app_dependencies $pkg_dependencies

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --time --weight=1

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

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading nginx web server configuration..." --time --weight=1

# Create a dedicated nginx config
ynh_add_nginx_config


#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Making sure dedicated system user exists..." --time --weight=1

# Create a dedicated user (if not existing)
ynh_system_user_create --username=$app

# #=================================================
# # STORE THE CONFIG FILE CHECKSUM
# #=================================================

# ### Verify the checksum of a file, stored by `ynh_store_file_checksum` in the install script.
# ### And create a backup of this file if the checksum is different. So the file will be backed up if the admin had modified it.
# ynh_backup_if_checksum_is_different --file="$final_path/CONFIG_FILE"
# # Recalculate and store the checksum of the file for the next upgrade.
# ynh_store_file_checksum --file="$final_path/CONFIG_FILE"

#=================================================
# Files owned by user app
#=================================================

sudo chown $app:$app $final_path -R
sudo chmod 755 $final_path -R

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading php-fpm configuration..." --time --weight=1

# Create a dedicated php-fpm config
ynh_add_fpm_config

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Upgrading SSOwat configuration..." --time --weight=1

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# unprotected_uris allows SSO credentials to be passed anyway
	ynh_app_setting_set --app=$app --key=unprotected_uris --value="/"
fi

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading nginx web server..." --time --weight=1

ynh_systemd_action --service_name=nginx --action=reload

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

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