#!/bin/bash

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

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

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

allow_anonymous=false
allow_anonymous_edits=false
allow_email_registration=false
allow_free_url=false
require_free_url_authentication=false

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

ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=path --value=$path_url

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Finding available ports..." --weight=2

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

# Find an available port for the frontend
port_frontend=$(ynh_find_port --port=$(($port_backend+1)))
ynh_app_setting_set --app=$app --key=port_frontend --value=$port_frontend

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=20

# Install Nodejs
ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
ynh_use_nodejs

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=2

# Download, check integrity, uncompress and patch the source from app.src
#ynh_setup_source --dest_dir=$install_dir
mkdir -p $install_dir/backend
mkdir -p $install_dir/frontend
git clone --depth 1 https://github.com/hedgedoc/hedgedoc -b develop $install_dir/backend
git clone --depth 1 https://github.com/hedgedoc/react-client $install_dir/frontend

#=================================================
# SYSTEM CONFIGURATION
#=================================================
ynh_script_progression --message="Adding system configurations related to $app..." --weight=1

ynh_add_nginx_config

ynh_add_systemd_config

yunohost service add $app --description="Collaborative Markdown editor" --log="/var/log/$app/$app.log"

#=================================================
# SPECIFIC SETUP
#==============================================
# INSTALL HEDGEDOC
#==============================================

ynh_script_progression --message="Building HedgeDoc backend... (this will take some time and resources!)" --weight=20

pushd "$install_dir/backend"
	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install
popd 

ynh_script_progression --message="Building HedgeDoc frontend... (this will take some time and resources!)" --weight=20

pushd "$install_dir/frontend"
	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install
	# TODO: Fails out of memory in my tests
	# Production build
	# Not sure if PORT is necessary here
	# PORT=$port_frontend REACT_APP_BACKEND_BASE_URL=http://localhost:$port_backend/ yarn build:production
popd

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

ynh_replace_string --match_string="__ENV_PATH__" --replace_string="$PATH" --target_file="../conf/backend.service"
ynh_replace_string --match_string="__ENV_PATH__" --replace_string="$PATH" --target_file="../conf/frontend.service"

ynh_add_systemd_config --service="${app}_backend" --template="../conf/backend.service"
ynh_add_systemd_config --service="${app}_frontend" --template="../conf/frontend.service"

#=================================================
# MODIFY A CONFIG FILE
#=================================================
ynh_script_progression --message="Modifying a config file..." --weight=1

#path=${path_url:1}
ynh_add_config --template="env_backend" --destination="$install_dir/backend/.env"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================
ynh_script_progression --message="Securing files and directories..." --weight=1

# Set permissions to app files
chown -R $app:$app $install_dir
chmod o-rwx $install_dir

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=2

yunohost service add "${app}_backend" --description="Collaborative Markdown editor's backend" --log="/var/log/$app/$app.log"
yunohost service add "${app}_frontend" --description="Collaborative Markdown editor's frontend" --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="${app}_backend" --action=start --log_path=systemd
ynh_systemd_action --service_name="${app}_frontend" --action=start --log_path=systemd

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

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