#!/bin/bash

## vars for remove script
can_remove_db=0
can_remove_home=0
can_remove_user=0

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================
source ../settings/scripts/_common.sh
source /usr/share/yunohost/helpers

pushd $(readlink -f ../settings/scripts)
#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading settings..."

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
db_user=$db_name

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================
ynh_script_progression --message="Validating restoration parameters..."

test ! -d $final_path \
	|| ynh_die --message="There is already a directory: $final_path "
can_remove_home=1

#=================================================
# Reinstall dependencies
#=================================================
ynh_script_progression --message="Reinstalling dependencies..." --weight=5

ynh_install_app_dependencies $pkg_dependencies $ruby_build_dependencies

# now that we have psql for sure, test db existence
ynh_script_progression --message="Checking DB availability" --weight=1
ynh_psql_database_exists --database $app && ynh_die --message="There is already a database: $app"
can_remove_db=1

#=================================================
# Restoring dedicated USER
#=================================================
ynh_script_progression --message="Restoring user..." --weight=1

ynh_system_user_create --username=$app --home_dir=$final_path --use_shell
can_remove_user=1
mkdir -p $final_path
chmod 0750 $final_path -R
chown $app:www-data $final_path

#=================================================
# INSTALL RVM AND RUBY FOR CURRENT USER
#=================================================
ynh_script_progression --message="Reinstalling rbenv and ruby..." --weight=10

source ./install_ruby

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
# Download, check integrity, unucompress and patch the source from app.src
pushd $final_path
ynh_script_progression --message="Download the sources..." --weight=5
ynh_exec_warn_less sudo -u $app git clone https://github.com/diaspora/diaspora.git -b $current_tag
popd

#=================================================
# Restore files
#=================================================
ynh_script_progression --message="Restore the files" --weight=5
ynh_restore_file --origin_path=/var/www/diaspora/diaspora/config/database.yml
ynh_restore_file --origin_path=/var/www/diaspora/diaspora/config/diaspora.yml
ynh_restore_file --not_mandatory --origin_path=/var/www/diaspora/diaspora/public/uploads/
# restoring somewhere postgres can read
ynh_restore_file --origin_path=/var/www/diaspora/backup/diaspora.dump --dest_path=/tmp/diaspora.dump


#=================================================
# Restore database
#=================================================
ynh_script_progression --message="Recreating and restoring database..." --weight=5
db_name=$(ynh_sanitize_dbid $app)
ynh_psql_test_if_first_run
db_pass=$(ynh_app_setting_get --app=$app --key=psqlpwd)
ynh_psql_setup_db --db_user=$db_name --db_name=$db_name --db_pwd=$db_pass
ynh_script_progression --message="Restoring database..."
sudo -u postgres pg_restore \
  --single-transaction \
  --dbname=$app \
  /tmp/diaspora.dump
ynh_secure_remove --file=/tmp/diaspora.dump

#=================================================
# Bundle the ruby app
#=================================================
ynh_script_progression --message="Precompile assets..." --weight=5
source ./bundle_app

#=================================================
# Restore nginx conf files
#=================================================
ynh_script_progression --message="Recreate nginx config from source"

ynh_add_nginx_config

#=================================================
# Restore services
#=================================================
ynh_script_progression --message="Restore services..."

source ./create_services

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

yunohost service add $app.target \
  --log $final_path/diaspora/log/production.log \
        $final_path/diaspora/log/unicorn-stderr.log\
        $final_path/diaspora/log/unicorn-stdout.log\
        $final_path/diaspora/log/sidekiq.log\
  --description "Diaspora service (unicorn web and sidekiq)"

popd