#!/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=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)
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)

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

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..." --weight=1

# 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)..." --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

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

# Deactivate cron jobs
ynh_secure_remove --file="/etc/cron.d/$app"

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

	# Backup user contents
	mv "$final_path" "$final_path.old"

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

	# Restore user contents
	cp -a "$final_path.old/uploads/." "$final_path/uploads/."
	cp -a "$final_path.old/protected/runtime" "$final_path/protected/runtime"
	cp -a "$final_path.old/protected/config/." "$final_path/protected/config/"
	cp -a "$final_path.old/protected/modules/." "$final_path/protected/modules/"
	cp -a "$final_path.old/themes/." "$final_path/themes/"

	# Delete old source
	ynh_secure_remove --file="$final_path.old"
fi

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

# Create a dedicated NGINX config
ynh_add_nginx_config

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

# 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=1

# Create a dedicated PHP-FPM config
ynh_add_fpm_config

#=================================================
# SPECIFIC UPGRADE
#=================================================
# DEACTIVATE DEBUG MODE
#=================================================

ynh_replace_string --match_string="defined('YII_DEBUG') or define('YII_DEBUG', true);"\
 --replace_string="// defined('YII_DEBUG') or define('YII_DEBUG', true);"\
 --target_file="$final_path/index.php"
ynh_replace_string --match_string="defined('YII_ENV') or define('YII_ENV', 'dev');"\
 --replace_string="// defined('YII_ENV') or define('YII_ENV', 'dev');"\
 --target_file="$final_path/index.php"

#=================================================
# MIGRATE DATABASE
#=================================================
ynh_script_progression --message="Migrating database..." --weight=1

chown -R $app $final_path/

sudo -u $app /usr/bin/php$YNH_PHP_VERSION $final_path/protected/yii migrate/up --includeModuleMigrations=1

#=================================================
# UPDATE MODULES
#=================================================
ynh_script_progression --message="Updating modules..." --weight=1

sudo -u $app /usr/bin/php$YNH_PHP_VERSION $final_path/protected/yii module/update-all

#=================================================
# REINSTALL CRONTAB
#=================================================
ynh_script_progression --message="Upgrading crontab..." --weight=1

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

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

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

# Remove permission to others than $app and www-data (nginx user)
chmod o-rwx $final_path
chown $app:www-data $final_path

chown -R $app $final_path/assets
chown -R $app $final_path/protected/config
chown -R $app $final_path/protected/modules
chown -R $app $final_path/protected/runtime
chown -R $app $final_path/uploads

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

ynh_systemd_action --service_name=nginx --action=reload

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

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