#!/bin/bash

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

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

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

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

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

export domain=$YNH_APP_ARG_DOMAIN
export path_url=/
export admin=$YNH_APP_ARG_ADMIN
export email=$YNH_APP_ARG_EMAIL
export isp_name=$YNH_APP_ARG_ISP_NAME
export isp_site=$YNH_APP_ARG_ISP_SITE
is_public=1
export secret=$(ynh_string_random 24)

export app=$YNH_APP_INSTANCE_NAME

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

export final_path=/opt/$app
test ! -e "$final_path" || ynh_die --message="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_script_progression --message="Storing installation settings..." --weight=1

ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=path --value=$path_url
ynh_app_setting_set --app=$app --key=admin --value=$admin
ynh_app_setting_set --app=$app --key=email --value=$email
ynh_app_setting_set --app=$app --key=isp_name --value=$isp_name
ynh_app_setting_set --app=$app --key=isp_site --value=$isp_site

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=1

ynh_install_app_dependencies $pkg_dependencies
ynh_install_python --python_version=$python_version

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

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

#=================================================
# CREATE A POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Creating a PostgreSQL database..." --weight=1

export db_name=$(ynh_sanitize_dbid --db_name=$app)
export db_user=$db_name
ynh_app_setting_set --app=$app --key=db_name --value=$db_name
ynh_psql_test_if_first_run
ynh_psql_setup_db --db_user=$db_user --db_name=$db_name
export db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=1

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"

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"

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

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC SETUP
#=================================================
# PYTHON DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing more dependencies..." --weight=1

pushd "$final_path"
	ynh_use_python
	ynh_exec_warn_less $ynh_pip install --upgrade pip
	ynh_exec_warn_less $ynh_pip install gunicorn
	echo "django-auth-ldap<1.4" >> $final_path/requirements.txt
	ynh_exec_warn_less $ynh_pip install -r $final_path/requirements.txt
popd

#=================================================
# CONFIGURATION DJANGO
#=================================================
ynh_script_progression --message="Configuring application..." --weight=1

export prefix="${path_url#"/"}/"
prefix=${prefix%"/"}
ynh_render_template ../conf/local.py.j2 "$final_path/coin/settings_local.py"
ynh_store_file_checksum --file="$final_path/coin/settings_local.py"

#=================================================
# SERVE STATIC FILES IN PRODUCTION MODE
#=================================================

ln -s $final_path/$app/static $final_path/static

#=================================================
# SETUP DATABASE
#=================================================

# Set permissions
chown -R $app:www-data $final_path

pushd $final_path
	ynh_exec_warn_less $ynh_python manage.py migrate --noinput
	ynh_exec_warn_less $ynh_python manage.py collectstatic --noinput
popd

# Set permissions to directory
chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"

#=================================================
# CONFIGURE LOG DIR
#=================================================

mkdir -p /var/log/$app
chown -R $app /var/log/$app
chown -R $app:www-data "/var/log/$app"

#=================================================
# ADD A CONFIGURATION
#=================================================
ynh_script_progression --message="Adding a configuration file..." --weight=1

ynh_add_config --template="../conf/gunicorn_config.py" --destination="$final_path/gunicorn_config.py"

chown $app:www-data "$final_path/gunicorn_config.py"

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

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=1

yunohost service add $app --description "$app daemon" --log="/var/log/$app/$app.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=1

# Start a systemd service
ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"

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

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# Everyone can access the app.
	# The "main" permission is automatically created before the install script.
	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 $app completed" --last