#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_print_info "Loading installation settings..."

app=$YNH_APP_INSTANCE_NAME

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 $app mysqlpwd)
password=$(ynh_app_setting_get $app password)
master_key=$(ynh_app_setting_get $app master_key)

skipped_uris=$(ynh_app_setting_get $app skipped_uris)
unprotected_uris=$(ynh_app_setting_get $app unprotected_uris)
protected_uris=$(ynh_app_setting_get $app protected_uris)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_print_info "Ensuring downward compatibility..."

# Delete is_public if it exists
if [ ! -z $is_public ]; then
	ynh_app_setting_delete --app=$app --key=is_public
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

# Delete skipped_uris if it exists
if [ ! -z $skipped_uris ]; then
	ynh_app_setting_delete $app skipped_uris
fi

# Delete unprotected_uris if it exists
if [ ! -z $unprotected_uris ]; then
	ynh_app_setting_delete $app unprotected_uris
fi

# Delete protected_uris if it exists
if [ ! -z $protected_uris ]; then
	ynh_app_setting_delete $app protected_uris
fi

# If password exists, remove it
if [ ! -z $password ]; then
	ynh_app_setting_delete $app password
fi

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

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

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

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_print_info "Upgrading source files..."

php_config=$final_path/inc/config.php

### And create a backup of this file if the checksum is different. So the file will be backed up if the admin had modified it.
ynh_backup_if_checksum_is_different "$php_config"

ynh_secure_remove "$final_path"

# Download, check integrity, uncompress and patch the source from app.src
# In case of a new version, the url change from http://download.dotclear.org/latest/dotclear-X.X.X.tar.gz to http://download.dotclear.org/attic/dotclear-X.X.X.tar.gz
src_url=$(grep 'SOURCE_URL=' "../conf/app.src" | cut -d= -f2-)
if ! curl --output /dev/null --silent --head --fail "$src_url"; then
	ynh_replace_string "latest" "attic" ../conf/app.src
fi

ynh_setup_source "$final_path"

mv $final_path/dotclear/* $final_path/

ynh_secure_remove "$final_path/dotclear"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_print_info "Upgrading nginx web server configuration..."

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_print_info "Making sure dedicated system user exists..."

# Create a dedicated user (if not existing)
ynh_system_user_create $app

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_print_info "Upgrading php-fpm configuration..."

# Create a dedicated php-fpm config
ynh_add_fpm_config

#=================================================
# SPECIFIC UPGRADE
#=================================================
# CONFIGURE DOTCLEAR
#=================================================

cp $php_config.in $php_config
cp ../conf/class.auth.ldap.php $final_path/inc/class.auth.ldap.php

firstname=$(yunohost user info $admin | grep firstname: | cut -d' ' -f2 | tr -d '\n')
lastname=$(yunohost user info $admin | grep lastname: | cut -d' ' -f2 | tr -d '\n')
email=$(yunohost user info $admin | grep mail: | cut -d' ' -f2 | tr -d '\n')
admin_url=$(ynh_url_join $path_url admin/index.php)

# Config as if we called in admin/install/wizard.php
ynh_replace_string "'DC_DBDRIVER', ''" "'DC_DBDRIVER', 'mysqli'" $php_config
ynh_replace_string "'DC_DBHOST', ''" "'DC_DBHOST', 'localhost'" $php_config
ynh_replace_string "'DC_DBUSER', ''" "'DC_DBUSER', '$app'" $php_config
ynh_replace_string "'DC_DBPASSWORD', ''" "'DC_DBPASSWORD', '$db_pwd'" $php_config
ynh_replace_string "'DC_DBNAME', ''" "'DC_DBNAME', '$db_name'" $php_config
ynh_replace_string "'DC_MASTER_KEY', ''" "'DC_MASTER_KEY', '$master_key'" $php_config
ynh_replace_string "'DC_ADMIN_URL', ''" "'DC_ADMIN_URL', 'https://$domain$admin_url'" $php_config
ynh_replace_string "'DC_ADMIN_MAILFROM', ''" "'DC_ADMIN_MAILFROM', '$email'" $php_config

# Config as if we called in admin/install/wizard.php
ynh_replace_string "'DC_DBDRIVER', ''" "'DC_DBDRIVER', 'mysqli'" $php_config
ynh_replace_string "'DC_DBHOST', ''" "'DC_DBHOST', 'localhost'" $php_config
ynh_replace_string "'DC_DBUSER', ''" "'DC_DBUSER', '$app'" $php_config
ynh_replace_string "'DC_DBPASSWORD', ''" "'DC_DBPASSWORD', '$db_pwd'" $php_config
ynh_replace_string "'DC_DBNAME', ''" "'DC_DBNAME', '$db_name'" $php_config
ynh_replace_string "'DC_MASTER_KEY', ''" "'DC_MASTER_KEY', '$master_key'" $php_config
ynh_replace_string "'DC_ADMIN_URL', ''" "'DC_ADMIN_URL', 'https://$domain$admin_url'" $php_config
ynh_replace_string "'DC_ADMIN_MAILFROM', ''" "'DC_ADMIN_MAILFROM', '$email'" $php_config

# Adding LDAP login
cat << EOF >> $php_config

\$__autoload['myDcAuth'] = dirname(__FILE__).'/class.auth.ldap.php';
define('DC_AUTH_CLASS','myDcAuth');
EOF

# Recalculate and store the checksum of the file for the next upgrade.
ynh_store_file_checksum "$php_config"

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

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

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

if ! ynh_permission_exists --permission "admin"; then
	ynh_print_info "Upgrading SSOwat configuration..."
	ynh_permission_create --permission "admin" --url "/admin" --allowed $admin
fi

#=================================================
# RELOAD NGINX
#=================================================
ynh_print_info "Reloading nginx web server..."

systemctl reload php7.0-fpm
systemctl reload nginx

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

ynh_print_info "Upgrade of $app completed"