#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=2

app=$YNH_APP_INSTANCE_NAME

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

#=================================================
# CHECK VERSION
#=================================================
ynh_script_progression --message="Checking version..."

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..."

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

# 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

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

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

ynh_app_setting_delete --app=$app --key=skipped_uris

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=20

# 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

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --weight=3

	# 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..." --weight=3

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..." --weight=5

ynh_install_app_dependencies $pkg_dependencies

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

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

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading PHP-FPM configuration..." --weight=2

# Create a dedicated php-fpm config
ynh_add_fpm_config --usage=low --footprint=low --package="$extra_php_dependencies"

#=================================================
# SPECIFIC UPGRADE
#=================================================
# RECONFIGURE AMPACHE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
    ynh_script_progression --message="Upgrading Ampache configuration..."

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

    ynh_replace_string --match_string="__DBUSER__" --replace_string="$db_user" --target_file="$conf_file"
    db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
    ynh_replace_string --match_string="__DBPWD__" --replace_string="$db_pwd" --target_file="$conf_file"
    ynh_replace_string --match_string="__DBNAME__" --replace_string="$db_name" --target_file="$conf_file"
    ynh_replace_string --match_string="__PATHTOCHANGE__" --replace_string="$path_url" --target_file="$conf_file"
    ynh_replace_string --match_string="__DOMAINTOCHANGE__" --replace_string="$domain" --target_file="$conf_file"
    ynh_replace_string --match_string="__RANDOMKEYTOCHANGE__" --replace_string="$secret_key" --target_file="$conf_file"

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

    #=================================================
    # UPDATE AMPACHE WITH COMPOSER
    #=================================================
    ynh_script_progression --message="Upgrading ampache with Composer..." --weight=30

    # Install composer
    ynh_install_composer --phpversion="${YNH_PHP_VERSION}" --workdir="$final_path" --install_args="--prefer-source --no-dev"
    ynh_composer_exec --phpversion="${YNH_PHP_VERSION}" --workdir="$final_path" --commands="config discard-changes true"
fi

#=================================================
# UPDATE MULTIMEDIA DIRECTORIES
#=================================================
ynh_script_progression --message="Updating multimedia directories..."

ynh_multimedia_build_main_dir

#=================================================
# UPGRADE AMPACHE WITH CURL
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
    ynh_script_progression --message="Upgrading Ampache with cURL..." --weight=6

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

    # Reload Nginx
    ynh_systemd_action --service_name=nginx --action=reload

    ynh_local_curl /update.php?action=update
    sleep 1
fi

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================
ynh_script_progression --message="Securing files and directories..."

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

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

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

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..."

ynh_systemd_action --service_name=nginx --action=reload

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

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