#!/bin/bash

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

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

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#===================================================
# RETRIEVE ARGUMENTS FROM THE MANIFEST
#===================================================

# This is a multi-instance app, meaning it can be installed several times independently
# The id of the app as stated in the manifest is available as $YNH_APP_ID
# The instance number is available as $YNH_APP_INSTANCE_NUMBER (equals "1", "2", ...)
# The app instance name is available as $YNH_APP_INSTANCE_NAME
#    - the first time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample
#    - the second time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample__2
#    - ynhexample__{N} for the subsequent installations, with N=3,4, ...
# The app instance name is probably what you are interested the most, since this is
# guaranteed to be unique. This is a good unique identifier to define installation path,
# db names, ...
app=$YNH_APP_INSTANCE_NAME

# Retrieve app settings

domain=$(ynh_app_setting_get "$app" domain)
path_url=$(ynh_app_setting_get "$app" path)
admin=$(ynh_app_setting_get "$app" admin)
is_public=$(ynh_app_setting_get "$app" is_public)
final_path=$(ynh_app_setting_get "$app" final_path)
db_name=$(ynh_app_setting_get $app db_name)
db_pwd=$(ynh_app_setting_get $app db_pwd)
old_flarum_version=$(ynh_app_setting_get "$app" flarum_version)
old_ssowat_ext_ver=$(ynh_app_setting_get "$app" ssowat_ext_ver)
bazaar_extension=$(ynh_app_setting_get "$app" bazaar_extension)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================

# Fix is_public as a boolean value
if [ "$is_public" = "Yes" ]; then
	ynh_app_setting_set $app is_public 1
	is_public=1
elif [ "$is_public" = "No" ]; then
	ynh_app_setting_set $app is_public 0
	is_public=0
fi

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

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================

# 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

#=================================================
# CHECK THE PATH
#=================================================

# Normalize the URL path syntax
path_url=$(ynh_normalize_url_path $path_url)

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# CREATE DEDICATED USER
#=================================================

# Create a system user
ynh_system_user_create $app

#=================================================
# COMPOSER UPGRADE
#=================================================

if ! type "$final_path/composer.phar" > /dev/null; then
  init_composer $app $final_path
fi

#=================================================
# FLARUM UPGRADE
#=================================================

# Downward compatibility: remove the v before version number
if [[ $old_flarum_version == "v*" ]]; then $old_flarum_version = ${old_flarum_version:1}; fi
# Check if upgrade of Flarum core is needed
if [[ $(dpkg --compare-versions $old_flarum_version lt $flarum_version && echo true) ]]; then
	# Upgrade Flarum
	exec_composer $app $final_path "require -n flarum/core:$flarum_version"
	# Database password has to be input on admin page after upgrade to 0.1.0-beta.7.2
	if [[ $flarum_version == "0.1.0-beta.7.2" ]]; then
		curl "https://$domain$path_url/admin" -H "Accept: */*" --compressed -H "Content-Type: application/x-www-form-urlencoded; charset=UTF-8" --data "databasePassword=$db_pwd" -k
	fi
	pushd $final_path
	exec_as $app php flarum cache:clear
	popd
  ynh_print_info "Flarum has been updated to version $flarum_version."
	upgraded_flarum=true
else
	ynh_print_info "Flarum does not need updating."
	upgraded_flarum=false
fi

# Check if upgrade of SSOwat extension is needed
if [[ $(dpkg --compare-versions $old_ssowat_ext_ver lt $ssowat_ext_ver && echo true) || -z $old_ssowat_ext_ver ]]; then
	# Install and activate the SSOwat auth extension
	install_and_activate_extension $app $final_path $db_name "tituspijean/flarum-ext-auth-ssowat:$ssowat_ext_ver" "tituspijean-auth-ssowat"
	# Configure SSOwat auth extension
	ssowatdomain=$(</etc/yunohost/current_host)
	sql_command="INSERT IGNORE INTO \`settings\` (\`key\`, \`value\`) VALUES ('tituspijean-auth-ssowat.domain', '$ssowatdomain'), ('tituspijean-auth-ssowat.onlyUse', '0');"
	ynh_mysql_execute_as_root "$sql_command" $db_name
  ynh_print_info "SSOwat extension has been updated and configured."
	upgraded_ssowat=true
else
	ynh_print_info "SSOwat extension does not need updating."
 upgraded_ssowat=false
fi

if [ $bazaar_extension -eq 1 ]; then
   install_and_activate_extension $app $final_path $db_name "flagrow/bazaar" "flagrow-bazaar"
   ynh_print_info "Bazaar extension has been installed."
fi

#=================================================
# NGINX CONFIGURATION
#=================================================

# Bug in Nginx with locations and aliases (see http://stackoverflow.com/a/35102259 )
if [ $path_url = "/" ]; then
  ynh_replace_string "__LOCATION_HACK__" "" "../conf/nginx.conf"
  ynh_replace_string "__PATH_HACK__" "/" "../conf/nginx.conf"
else
  ynh_replace_string "__LOCATION_HACK__" "$path_url" "../conf/nginx.conf"
  ynh_replace_string "__PATH_HACK__" "$path_url$path_url" "../conf/nginx.conf"
fi

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# PHP-FPM CONFIGURATION
#=================================================

# Create a dedicated php-fpm config
ynh_add_fpm_config

#=================================================
# SPECIFIC UPGRADE
#=================================================

# If app is public, add url to SSOWat conf as skipped_uris
if [[ $is_public -eq 1 ]]; then
  # See install script
  ynh_app_setting_set "$app" unprotected_uris "/"
fi

#=================================================
# SETUP LOGROTATE
#=================================================

# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --non-append

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

# Set right permissions
chown -R $app:www-data $final_path
sudo chmod -R 0775 $final_path

#=================================================
# SETUP SSOWAT
#=================================================

if [ $is_public -eq 0 ]
then	# Remove the public access
	ynh_app_setting_delete $app skipped_uris
fi
# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# unprotected_uris allows SSO credentials to be passed anyway
	ynh_app_setting_set $app unprotected_uris "/"
fi

#=================================================
# RELOAD NGINX
#=================================================

systemctl reload nginx

#===================================================
# STORE SETTINGS
#===================================================

if [ $upgraded_flarum ]; then
	ynh_app_setting_set $app flarum_version $flarum_version
fi
if [ $upgraded_ssowat ]; then
	ynh_app_setting_set $app ssowat_ext_ver $ssowat_ext_ver
fi