#!/bin/bash

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

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

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

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

domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
is_public=$YNH_APP_ARG_IS_PUBLIC

app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_print_info "Validating installation parameters..."

# Check machine architecture (in particular, we don't support ARM and 32bit machines)
[[ $(uname -m) == "x86_64" ]] || ynh_die "Sorry, but this app can only be installed on a x86, 64 bits machine :("

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 $domain $path_url

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_print_info "Storing installation settings..."

ynh_app_setting_set $app domain $domain
ynh_app_setting_set $app path $path_url
ynh_app_setting_set $app is_public $is_public

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_print_info "Configuring firewall..."

# Find a free port
port=$(ynh_find_port 8095)
ynh_app_setting_set $app port $port

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_print_info "Installing dependencies..."

ynh_install_nodejs 8.15.1
ynh_use_nodejs

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# START MONGODB
#=================================================
ynh_print_info "Starting mongodb ..."

# Start mongodb
systemctl enable mongodb
systemctl start mongodb

# Registering db name
db_name=$(ynh_sanitize_dbid $app)
ynh_app_setting_set $app db_name $db_name

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_print_info "Setting up source files..."

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

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_print_info "Configuring nginx web server..."

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_print_info "Configuring system user..."

# Create a system user
ynh_system_user_create $app "$final_path"

#=================================================
# SPECIFIC SETUP
#=================================================
# SETUP SYSTEMD
#=================================================
ynh_print_info "Configuring a systemd service..."

# Create a dedicated systemd config
ynh_replace_string "__NODEJS_PATH__" "$nodejs_path" "../conf/systemd.service"
ynh_add_systemd_config

#=================================================
# MODIFY A CONFIG FILE
#=================================================

cp "../conf/.env" "$final_path/.env"

ynh_replace_string "__NODEJS_PATH__" "$nodejs_path" "$final_path/.env"
ynh_replace_string "__DB_NAME__" "$db_name" "$final_path/.env"
ynh_replace_string "__DOMAIN_URI__" "$domain$path_url" "$final_path/.env"
ynh_replace_string "__PORT__" "$port" "$final_path/.env"

#=================================================
# STORE THE CONFIG FILE CHECKSUM
#=================================================

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum "$final_path/.env"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================
ynh_print_info "Configuring file permissions ..."

# Set strong right permissions to app files
chown -R $app: "$final_path"
chmod -R 640 "$final_path"
find "$final_path" -type d -print0 | xargs -0 chmod 750

#=================================================
# ADVERTISE SERVICE IN ADMIN PANEL
#=================================================

yunohost service add mongodb --log "/var/log/mongodb/mongodb.log"
yunohost service add $app

#=================================================
# SETUP SSOWAT
#=================================================
ynh_print_info "Configuring SSOwat..."

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# unprotected_uris allows SSO credentials to be passed anyway.
	ynh_app_setting_set $app unprotected_uris "/"
fi

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

systemctl reload nginx

#=================================================
# START SERVICE
#=================================================
ynh_print_info "Now starting Wekan service..."

ynh_systemd_action --action=start --service_name=$app --log_path="systemd" --line_match="Kadira: completed instrumenting the app"
sleep 10

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

ynh_print_info "Installation of $app completed"