#!/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)
datadir=$(ynh_app_setting_get --app=$app --key=datadir)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)

prefix=$(ynh_app_setting_get $app prefix)

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

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up $app before upgrading (may take a while)..." --weight=7

# 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..." --weight=1

# 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

# If datadir doesn't exist, create it
if [ -z "$datadir" ]; then
   datadir=/home/yunohost.app/$app/upload
   ynh_app_setting_set --app=$app --key=datadir --value=$datadir
   mkdir -p $datadir
    # Remove upload if empty
    rmdir $datadir 2> /dev/null && mv "$final_path/upload" $datadir || true
   chown -R $app:www-data "$datadir"
   chmod -R o-rwx "$datadir"
    ln -s $datadir $final_path/upload
fi

# Cleaning legacy permissions
if ynh_legacy_permissions_exists; then
    ynh_legacy_permissions_delete_all

    ynh_app_setting_delete --app=$app --key=is_admin_public
fi

if ! ynh_permission_exists --permission="admin"; then
    # Create the required permissions
    ynh_permission_create --permission="admin" --url="/admin" --allowed=$admin
fi

# Create a permission if needed
if ! ynh_permission_exists --permission="api"; then
    ynh_permission_create --permission="api" --url="/api" --allowed="visitors" --show_tile="false" --protected="true"
fi

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

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

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

    # Download, check integrity, uncompress and patch the source from app.src
    ynh_setup_source --dest_dir="$final_path" --keep="$(echo $final_path/plugins/*) $final_path/application/config/config.php $final_path/upload"
fi

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"
chmod 750 "$final_path/tmp"
chmod 750 "$final_path/application/config/"
chown -R $app:www-data "$datadir"
chmod 750 $datadir
ln -s $datadir $final_path/upload 2> /dev/null || true

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

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..." --weight=1

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading PHP-FPM configuration..." --weight=1

# Create a dedicated PHP-FPM config
ynh_add_fpm_config

#=================================================
# CONFIGURE
#=================================================
ynh_script_progression --message="Configuring Limesurvey..." --weight=1

ynh_add_config --template="../conf/config.php" --destination="$final_path/application/config/config.php"

#=================================================
# UPGRADE DB
#=================================================

# Migrate DB
ynh_exec_as "$app" php $final_path/application/commands/console.php updatedb 

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