#!/bin/bash

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

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

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

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=$(ynh_app_setting_get --app=$app --key=admin)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
language=$(ynh_app_setting_get --app=$app --key=language)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
db_user=$db_name

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

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="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

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

# 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
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

# Cleaning legacy permissions
if ynh_legacy_permissions_exists; then
	ynh_legacy_permissions_delete_all

	ynh_app_setting_delete --app=$app --key=is_public
fi

#=================================================
# 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=$app --home_dir="$final_path"

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

config="$final_path/.env"
ynh_backup_if_checksum_is_different --file="$final_path/CONFIG_FILE"

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

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

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"

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

ynh_install_app_dependencies $pkg_dependencies

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

# Create a dedicated nginx config
ynh_add_nginx_config
phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)

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

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

#=================================================
# SPECIFIC UPGRADE
#=================================================
# MODIFY A CONFIG FILE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Modifying a config file..."

	ynh_replace_string --match_string="__LANGUAGE__" --replace_string="$language" --target_file="$config"

	ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$config"
	ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="$config"
	ynh_replace_string --match_string="__DB_NAME__" --replace_string="$db_name" --target_file="$config"
	ynh_replace_string --match_string="__DB_USER__" --replace_string="$db_user" --target_file="$config"
	ynh_replace_string --match_string="__DB_PASS__" --replace_string="$db_pwd" --target_file="$config"

	ynh_replace_string --match_string="__API_SECRET__" --replace_string="$(ynh_app_setting_get --app=$app --key=api_secret)" --target_file="$config"
	ynh_replace_string --match_string="__APP_KEY__" --replace_string="$(ynh_app_setting_get --app=$app --key=app_key)" --target_file="$config"
	ynh_replace_string --match_string="__PHANTOMJS_KEY__" --replace_string="$(ynh_app_setting_get --app=$app --key=phantomjs_jey)" --target_file="$config"

	ynh_replace_string --match_string="__MAIL_FROM_ADDRESS__" --replace_string="$(ynh_app_setting_get --app=$app --key=mail_from_address)" --target_file="$config"
	ynh_replace_string --match_string="__MAIL_FROM_NAME__" --replace_string="$(ynh_app_setting_get --app=$app --key=mail_from_name)" --target_file="$config"

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

#=================================================
# UPGRADE DATABASE
#=================================================
ynh_script_progression --message="Upgrading the database..."

pushd "$final_path"
	# Put the application into maintenance mode
	php$phpversion artisan down --no-interaction --verbose

	# Optimize the framework for better performance
	php$phpversion artisan optimize --force --no-interaction --verbose

	# Run the database migrations
	php$phpversion artisan migrate --no-interaction --verbose
	php$phpversion artisan db:seed --class=UpdateSeeder --force --no-interaction --verbose

	# Bring the application out of maintenance mode
	php$phpversion artisan up --no-interaction --verbose
popd

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

# Set permissions on app files

chmod -R 755 $final_path/storage

#=================================================
# 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"