#!/bin/bash

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

source _common.sh
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

# This is a multi-instance app, meaning it can be installed several times independently
# The id of the app as stated in the manifest is available as $YNH_APP_ID
# The instance number is available as $YNH_APP_INSTANCE_NUMBER (equals "1", "2", ...)
# The app instance name is available as $YNH_APP_INSTANCE_NAME
#    - the first time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample
#    - the second time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample__2
#    - ynhexample__{N} for the subsequent installations, with N=3,4, ...
# The app instance name is probably what you are interested the most, since this is
# guaranteed to be unique. This is a good unique identifier to define installation path,
# db names, ...
app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================

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

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

# Check web path availability
ynh_webpath_available $domain $path_url
# Register (book) web path
ynh_webpath_register $app $domain $path_url

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

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
#=================================================

# Find a free port
port=$(ynh_find_port 4010)
# Open this port
yunohost firewall allow --no-upnp TCP $port 2>&1
ynh_app_setting_set $app port $port

#=================================================
# INSTALL DEPENDENCIES
#=================================================

# install nodejs
ynh_install_nodejs 8

# add yarn repo for Debian
curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
ynh_package_update

ynh_install_app_dependencies mailutils yarn


#=================================================
# CREATE A MYSQL DATABASE
#=================================================
# If your app uses a MySQL database, you can use these lines to bootstrap
# a database, an associated user and save the password in app settings

db_name=$(ynh_sanitize_dbid $app)
ynh_app_setting_set $app db_name $db_name
ynh_mysql_setup_db $db_name $db_name

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

ynh_app_setting_set $app final_path $final_path
# Download, check integrity, uncompress and patch the source from app.src
tmpdir="$(mktemp -d)"
sudo wget -O "$tmpdir/ghost.zip" "https://ghost.org/zip/ghost-latest.zip"
unzip "$tmpdir/ghost.zip" -d "$final_path/."
sudo rm -R "$tmpdir/ghost.zip"
#=================================================
# NGINX CONFIGURATION
#=================================================

# Create a dedicated nginx config
ynh_add_nginx_config
if [ "$path_url" != "/" ]
then
	ynh_replace_string "^#sub_path_only" "" "/etc/nginx/conf.d/$domain.d/$app.conf"
fi
ynh_store_file_checksum "/etc/nginx/conf.d/$domain.d/$app.conf"

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

# Create a system user
ynh_system_user_create $app

#=================================================
# SPECIFIC SETUP
#=================================================

# Copy configuration file
cp ../conf/config.production.json "$final_path/config.production.json"

# Install the dependencies with yarn
(
	cd "$final_path"
	yarn install 
	yarn global add knex-migrator

 
)

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

ynh_replace_string "__DOMAIN__" "$domain"      "$final_path/config.production.json"
ynh_replace_string "__PATH__"   "$path_url"     "$final_path/config.production.json"
ynh_replace_string "__DBNAME__" "$db_name"     "$final_path/config.production.json"
ynh_replace_string "__DBPWD__"  "$db_pwd"      "$final_path/config.production.json"
ynh_replace_string "__PORT__"   "$port"        "$final_path/config.production.json"

# Create tables in database
(
	cd "$final_path"
NODE_ENV=production knex-migrator init

)

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

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

#=================================================
# SET WRITE PERMISSION 
#=================================================

# Set right permissions for curl install
chown -R $app: $final_path

#=================================================
# SETUP SYSTEMD
#=================================================

# Create a dedicated systemd config
ynh_add_systemd_config
systemctl start "$app"

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

if [ $is_public -eq 0 ]
then	# Remove the public access
	ynh_app_setting_delete $app skipped_uris
fi
# 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
#=================================================

systemctl reload nginx