#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

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

#=================================================
# MANAGE FAILURE OF THE SCRIPT
#=================================================

ynh_clean_setup () {
	ynh_clean_check_starting
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

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

domain=$YNH_APP_ARG_DOMAIN
is_public=$YNH_APP_ARG_IS_PUBLIC
path_url="/"
admin=$YNH_APP_ARG_ADMIN

app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THIS ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..." --weight=1

final_path=/var/www/$app
test ! -e "$final_path" || ynh_die "This path already contains a folder"

# Register (book) web path
ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================

ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=is_public --value=$is_public
ynh_app_setting_set --app=$app --key=path_url --value=$path_url
ynh_app_setting_set --app=$app --key=admin --value=$admin

email=$(ynh_user_get_info --username=$admin --key=mail)

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Finding an available port..." --weight=1

# Find an available port
port=$(ynh_find_port --port=3000)
ynh_app_setting_set --app=$app --key=port --value=$port

# Find an available port
porti=$(ynh_find_port --port=$(($port + 1)))
ynh_app_setting_set --app=$app --key=porti --value=$porti

#=================================================
# INSTALL NODEJS & YARN
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=20

# Install Nodejs
ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version

# Install Yarn
ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=1

# Create a system user
ynh_system_user_create --username=$app

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=10

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

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..." --weight=1

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..." --weight=1

ynh_replace_string --match_string="__APP__"       --replace_string="$app"        --target_file="../conf/systemd.service"
ynh_replace_string --match_string="__FINALPATH__" --replace_string="$final_path" --target_file="../conf/systemd.service"
ynh_replace_string --match_string="__ENV_PATH__"  --replace_string="$PATH"       --target_file="../conf/systemd.service"
ynh_replace_string --match_string="__YNH_NPM__"   --replace_string="$ynh_npm"    --target_file="../conf/systemd.service"

ynh_add_systemd_config

#=================================================
# CONFIGURE CONFIG.JS	
#=================================================

# Copy default configuration file
mv "../conf/config.js" "$final_path/config/config.js"

ynh_replace_string --match_string="__PORT__"       --replace_string="$port"       --target_file="$final_path/config/config.js"
ynh_replace_string --match_string="__PORTI__"      --replace_string="$porti"      --target_file="$final_path/config/config.js"
ynh_replace_string --match_string="__ADMIN_MAIL__" --replace_string="$email" --target_file="$final_path/config/config.js"

# Store file checksum to detected user modifications on upgrade
ynh_store_file_checksum "$final_path/config/config.js"

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

pushd "$final_path" || ynh_die
	ynh_use_nodejs
	ynh_exec_warn_less yarn install --allow-root
	yarn global add bower
	bower install --allow-root
popd || ynh_die

#=================================================
# Set some permissions
#=================================================
ynh_script_progression --message="Securing files and directories..." --weight=1

chown -R $app: $final_path

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

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=2

# Start a systemd service
ynh_systemd_action --service_name=$app --action="start" --log_path="systemd" --line_match="server available"

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring SSOwat..." --weight=1

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# unprotected_uris allows SSO credentials to be passed anyway.
	ynh_permission_update --permission="main" --add="visitors"
fi

#=================================================
# 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="Installation of CryptPad completed" --last