#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_print_info "Loading installation settings..."

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get $app domain)
path_url=$(ynh_app_setting_get $app path)
admin_ampache=$(ynh_app_setting_get $app admin)
is_public=$(ynh_app_setting_get $app is_public)
final_path=$(ynh_app_setting_get $app final_path)
db_name=$(ynh_app_setting_get $app db_name)
secret_key=$(ynh_app_setting_get $app secret_key)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_print_info "Ensuring downward compatibility..."

# If is_public doesn't exist, create it
if [ -z $is_public ]; then
	is_public=1
	ynh_app_setting_set $app is_public $is_public
fi

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

# If db_name doesn't exist, create it
if [ -z $db_name ]; then
	db_name=$(ynh_sanitize_dbid $app)
	ynh_app_setting_set $app db_name $db_name
fi

# If final_path doesn't exist, create it
if [ -z $final_path ]; then
	final_path=/var/www/$app
	ynh_app_setting_set $app final_path $final_path
fi

# If secret_key doesn't exist, create it
if [ -z $secret_key ]; then
	secret_key="$(grep "^secret_key" "$final_path/config/ampache.cfg.php" | cut -d'"' -f2)"
	ynh_app_setting_set $app secret_key $secret_key
fi

ynh_app_setting_delete $app skipped_uris

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_print_info "Backing up the app before upgrading (may take a while)..."

# 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
path_url=$(ynh_normalize_url_path $path_url)

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_print_info "Upgrading source files..."

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

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_print_info "Upgrading nginx web server configuration..."

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_print_info "Upgrading dependencies..."

ynh_install_app_dependencies libav-tools php-cli

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_print_info "Making sure dedicated system user exists..."

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

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_print_info "Upgrading php-fpm configuration..."

# Create a dedicated php-fpm config
ynh_add_fpm_config

#=================================================
# SPECIFIC UPGRADE
#=================================================
# RECONFIGURE AMPACHE
#=================================================
ynh_print_info "Upgrading ampache configuration..."

conf_file="$final_path/config/ampache.cfg.php"
ynh_backup_if_checksum_is_different "$conf_file"

ynh_replace_string "__DBUSER__" "$db_name" "$conf_file"
db_pwd=$(ynh_app_setting_get $app mysqlpwd)
ynh_replace_string "__DBPWD__" "$db_pwd" "$conf_file"
ynh_replace_string "__DBNAME__" "$db_name" "$conf_file"
ynh_replace_string "__PATHTOCHANGE__" "$path_url" "$conf_file"
ynh_replace_string "__DOMAINTOCHANGE__" "$domain" "$conf_file"
ynh_replace_string "__RANDOMKEYTOCHANGE__" $secret_key "$conf_file"

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum "$conf_file"

#=================================================
# UPDATE AMPACHE WITH COMPOSER
#=================================================
ynh_print_info "Upgrading ampache with composer..."

(
	export COMPOSER_HOME=$final_path
	cd $final_path

	# Install composer
	curl -sS https://getcomposer.org/installer \
		| php -- --quiet --install-dir="$final_path" \
		|| ynh_die "Unable to install Composer"

	ynh_exec_warn_less php composer.phar config discard-changes true
	ynh_exec_warn_less php composer.phar update --prefer-source --no-interaction --no-dev
)

#=================================================
# UPDATE MULTIMEDIA DIRECTORIES
#=================================================

ynh_multimedia_build_main_dir

#=================================================
# UPGRADE AMPACHE WITH CURL
#=================================================
ynh_print_info "Upgrading ampache with curl..."

# Set the app as temporarily public for curl call
ynh_app_setting_set $app unprotected_uris "/"
# Reload SSOwat config
yunohost app ssowatconf

# Reload Nginx
systemctl reload nginx

ynh_local_curl /update.php?action=update
sleep 1

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================

# Set permissions on app files
chown -R $app: $final_path

#=================================================
# SETUP SSOWAT
#=================================================
ynh_print_info "Upgrading SSOwat configuration..."

# Keep app public if necessary
if [ $is_public -eq 0 ]
then
	ynh_app_setting_delete $app unprotected_uris
fi

#=================================================
# RELOAD NGINX
#=================================================
ynh_print_info "Reloading nginx web server..."

systemctl reload nginx

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

ynh_print_info "Upgrade of $app completed"