#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get $app domain)
path_url=$(ynh_app_setting_get $app path)
final_path=$(ynh_app_setting_get $app final_path)
db_name=$(ynh_app_setting_get $app db_name)

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

if [ -z $final_path ]; then	# If final_path doesn't exist, create it
	final_path="/var/www/$app"
	ynh_app_setting_set $app final_path $final_path
fi

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

ynh_backup_before_upgrade	# Backup the current version of the app
ynh_clean_setup () {
	ynh_restore_upgradebackup	# restore it if the upgrade fails
}
ynh_abort_if_errors	# Active trap pour arrêter le script si une erreur est détectée.

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

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

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

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

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

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================

# Create a system user
ynh_system_user_create $app

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

# Create a dedicated php-fpm config
ynh_add_fpm_config

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

# Run Baikal upgrade
php "${final_path}/bin/upgrade.sh"

# Cleanup old baikal-admin sessions
# since we may have changed owner of the session file
grep -lr "CSRF_TOKEN|s:" /var/lib/php5/sessions | xargs rm -f

#=================================================
# UPGRADE BAIKAL CONFIGURATION
#=================================================

bk_conf="${final_path}/Specific/config.php"
# Verify the checksum and backup the file if it's different
ynh_backup_if_checksum_is_different "$bk_conf"
cp ../conf/config.php "$bk_conf"

ynh_replace_string "#TIMEZONE#" "$(cat /etc/timezone)" "$bk_conf"

password_hash=$(ynh_app_setting_get $app password_hash)
# If the password_hash is not in the app's config, recreate it from the password.
if [ -z "$password_hash" ]; then
    password=$(ynh_app_setting_get $app password)
    password_hash=$(echo -n admin:BaikalDAV:$password | md5sum | cut -d ' ' -f 1)
    ynh_app_setting_set $app password_hash $password_hash
fi
ynh_replace_string "#PASSWORDHASH#" "${password_hash}" "$bk_conf"

# Store the config file checksum into the app settings
ynh_store_file_checksum "$bk_conf"

bk_conf="${final_path}/Specific/config.system.php"
# Verify the checksum and backup the file if it's different
ynh_backup_if_checksum_is_different "$bk_conf"
cp ../conf/config.system.php "$bk_conf"

ynh_replace_string "#PATH#" "$path_url"     "$bk_conf"
ynh_replace_string "#DBNAME#" "$db_name" "$bk_conf"
ynh_replace_string "#DBUSER#" "$db_name" "$bk_conf"
db_pwd=$(ynh_app_setting_get $app mysqlpwd)
ynh_replace_string "#DBPASS#" "$db_pwd" "$bk_conf"

deskey=$(ynh_app_setting_get $app deskey)
ynh_replace_string "#DESKEY#" "$deskey" "$bk_conf"

# Store the config file checksum into the app settings
ynh_store_file_checksum "$bk_conf"

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

# Set permissions
chown -R root: "$final_path"
chown $app "$final_path/Specific/"{config.php,config.system.php}
chmod 640 "$final_path/Specific/"{config.php,config.system.php}

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

# Allow public access on /
ynh_app_setting_set "$app" skipped_uris "/"
# But restrain on /admin
ynh_app_setting_set "$app" protected_uris "/admin/"

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

systemctl reload nginx