#!/bin/bash

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

source _common.sh
source ynh_composer__3
source ynh_add_swap
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)
phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)

#=================================================
# 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..."

# Cleaning legacy permissions
if ynh_legacy_permissions_exists; then
	ynh_legacy_permissions_delete_all

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

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

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# 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
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
    mkdir -p "$final_path/$app"
fi

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

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

# Create a dedicated NGINX config
ynh_add_nginx_config

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

ynh_install_app_dependencies $pkg_dependencies

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

# Create a dedicated PHP-FPM config
ynh_add_fpm_config --usage=low --footprint=low --package="$extra_php_dependencies"
phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)

#=================================================
# SPECIFIC UPGRADE
#=================================================
# ADD SWAP
#=================================================
ynh_script_progression --message="Adding swap..."

ynh_add_swap --size=$swap_needed

#=================================================
# UPGRADE COMPOSER
#=================================================
ynh_script_progression --message="Upgrading Composer..."

ynh_install_composer --phpversion="$phpversion" --workdir="$final_path"

export PATH="$final_path/vendor/bin:$PATH"

#=================================================
# UPGRADE DRUPAL
#=================================================
ynh_script_progression --message="Upgrading Drupal..."

ynh_backup_if_checksum_is_different --file="$final_path/$app/sites/default/settings.php"

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

update-alternatives --set php /usr/bin/php$phpversion

pushd "$final_path"
    ynh_exec_warn_less sudo -u $app env PATH=$PATH drush @$app.prod state:set system.maintenance_mode 1 --input-format=integer
    ynh_exec_warn_less sudo -u $app env PATH=$PATH php composer.phar update drupal/core webflo/drupal-core-require-dev --with-dependencies
    ynh_exec_warn_less sudo -u $app env PATH=$PATH php composer.phar update --with-dependencies
    ynh_exec_warn_less sudo -u $app env PATH=$PATH drush @$app.prod -y updatedb
    ynh_exec_warn_less sudo -u $app env PATH=$PATH drush @$app.prod cache:rebuild
    ynh_exec_warn_less sudo -u $app env PATH=$PATH drush @$app.prod state:set system.maintenance_mode 0 --input-format=integer
popd

update-alternatives --set php /usr/bin/php${YNH_DEFAULT_PHP_VERSION}

#=================================================
# STORE THE CONFIG FILE CHECKSUM
#=================================================
ynh_script_progression --message="Storing the config file checksum..."

# Recalculate and store the checksum of the file for the next upgrade.
ynh_store_file_checksum --file="$final_path/$app/sites/default/settings.php"

chmod 400 "$final_path/$app/sites/default/settings.php"
chown $app:$app "$final_path/$app/sites/default/settings.php"

#=================================================
# SETUP THE CRON FILE
#=================================================
ynh_script_progression --message="Setuping the cron file"

ynh_add_config --template="../conf/cron" --destination="/etc/cron.d/$app"

#=================================================
# GENERIC FINALIZATION
#=================================================
# 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"