#!/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)
phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)

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

upgrade_type=$(ynh_check_app_version_changed)

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

# 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 YesWiki before upgrading (may take a while)..." --weight=6

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --weight=5

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

	ynh_replace_string --match_string="yeswiki_release' \?=> \?'.*',$"\
		 --replace_string="yeswiki_release' => '$(ynh_app_upstream_version)',"\
		 --target_file="$final_path/wakka.config.php"
fi

if [[ $(ynh_app_setting_get --app=$app --key=loginldap_version) != $loginldap_version ]]
then
	ynh_script_progression --message="Upgrading LDAP plugin..." --weight=3

	# Download LDAP plugin from yeswiki repository
	wget https://repository.yeswiki.net/doryphore/extension-loginldap-$loginldap_version.zip 2>&1
	wget https://repository.yeswiki.net/doryphore/extension-loginldap-$loginldap_version.zip.md5 2>&1
	md5sum -c extension-loginldap-$loginldap_version.zip.md5 || ynh_die "Checksum for LDAP plugin does not match"

	unzip -o extension-loginldap-$loginldap_version.zip -d $final_path/tools

	ynh_app_setting_set --app=$app --key=loginldap_version --value=$loginldap_version

	if ! grep -q "ldap_host" "$final_path/wakka.config.php"
	then
		# Add LDAP config at the end of wakka.config.php
		ynh_replace_string --match_string=");"\
		 --replace_string="  'ldap_host' => '127.0.0.1',\n);"\
		 --target_file="$final_path/wakka.config.php"

		ynh_replace_string --match_string=");"\
		 --replace_string="  'ldap_port' => '389',\n);"\
		 --target_file="$final_path/wakka.config.php"

		ynh_replace_string --match_string=");"\
		 --replace_string="  'ldap_base' => 'ou=users,dc=yunohost,dc=org'\n);"\
		 --target_file="$final_path/wakka.config.php"
	fi
fi

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=2

# 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=5

# Create a dedicated PHP-FPM config
ynh_add_fpm_config --package="$extra_php_dependencies"

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

# Set permissions on app files
chown -R root: $final_path
chown -R $app $final_path/{cache,files,themes,tools,wakka.config.php}

chown $app:www-data $final_path
chmod o-rwx $final_path

#=================================================
# 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 YesWiki completed" --last