#!/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)
email=$(ynh_user_get_info --username=$admin --key=mail)
port=$(ynh_app_setting_get --app=$app --key=port)
porti=$(ynh_app_setting_get --app=$app --key=porti)

#=================================================
# CHECK VERSION
#=================================================
ynh_script_progression --message="Checking version..."

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=1

# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
	ynh_clean_check_starting
	# 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
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..." --weight=1

ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..." --weight=2

# 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

#=================================================
# 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"

#=================================================
# 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="config/config.js"
	
	chmod 750 "$final_path"
	chmod -R o-rwx "$final_path"
	chown -R $app:$app "$final_path"
fi

#=================================================
# APPLY FOLDER GROUP RIGHTS FOR WWW-DATA
#=================================================
chgrp -R www-data $final_path

#=================================================
# CREATE A SANDBOX DOMAIN
#=================================================
# if the main domain for the app is a root domain, we create a correct sandbox subdomain
if [[ $domain == *"."* ]]; then
	sandboxdomain=sandbox.$domain
fi
# if the main domain for the app is already a sub-domain, we create a correct sandbox domain
if [[ $domain == *"."*"."* ]]; then
	sandboxdomain=sandbox-$domain
fi
# if the main domain for the app is a .local root domain, we create a correct sandbox subdomain
if [[ $domain == *".local" ]]; then
	sandboxdomain=sandbox-$domain
fi

ynh_script_progression --message="Setting up sandobx domain: $sandboxdomain" --weight=1

# We don't test that in CI
if ! [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]; then
	# If sandboxdomain doesn't exist, create it
	if [ -z "$sandboxdomain" ]; then
		yunohost domain add $sandboxdomain
		yunohost domain config set $sandboxdomain -a "mail_in=0&mail_out=0"
	fi
fi

#=================================================
# 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=6

ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version

#=================================================
# INSTALL CRYPTPAD
#=================================================
ynh_script_progression --message="Building $app... (this will take some time and resources!)" --weight=60

pushd "$final_path" 
	ynh_exec_warn_less npm install --allow-root
	ynh_exec_warn_less npm install -g bower
	ynh_exec_warn_less bower update --allow-root
	ynh_exec_warn_less npm i
	ynh_exec_warn_less npm run build
popd

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Upgrading systemd configuration..." --weight=1

env_path="$PATH"
# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=1

yunohost service add $app --description="Zero Knowledge realtime collaborative editor" --log="/var/log/$app/$app.log"

#=================================================
# ADD UPGRADED CONFIG WITH SANDBOX
#=================================================
ynh_add_config --template="../conf/config.js" --destination="$final_path/config/config.js"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=1

ynh_systemd_action --service_name=$app --action="start" --log_path=systemd --line_match="server available"

#=================================================
# COPY NGINX CONF IN SANDBOX DOMAIN
#=================================================
# We don't test that in CI
if ! [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]; then
	ynh_add_config --template="/etc/nginx/conf.d/$domain.d/cryptpad.conf" --destination="/etc/nginx/conf.d/$sandboxdomain.d/cryptpad.conf"
fi

# We authorize access to sandbox domain
# We don't test that in CI
if ! [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]; then
	ynh_permission_url --permission="main" --add_url=$sandboxdomain --auth_header=true
fi

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=1

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# SEND A README FOR THE ADMIN
#=================================================
ynh_script_progression --message="Sending a readme for the admin..." --weight=1

message="CryptPad was successfully upgraded :)
We have added a sandbox domain for you but you still need to configure your DNS and generate Let's Encrypt Certificates for it !!
If not already done, then you can please open your $app domain: https://$domain$path_url
Create an account via the Register button on the home page. To make this account an instance administrator:
1. Copy the public key found in User Menu (avatar at the top right) > Settings > Account > Public Signing Key
2. Paste this key in /var/www/cryptpad/config/config.js in the following array (uncomment and replace the placeholder):
adminKeys: [
        "[cryptpad-user1@my.awesome.website/YZgXQxKR0Rcb6r6CmxHPdAGLVludrAF2lEnkbx1vVOo=]",
],
If you are facing an issue or want to improve this app, please open a new issue in this project: https://github.com/YunoHost-Apps/cryptpad_ynh"

ynh_send_readme_to_admin "$message"


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

ynh_script_progression --message="Upgrade of $app completed" --last