#!/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=$YNH_APP_ARG_DOMAIN
path_url="/"
admin=$YNH_APP_ARG_ADMIN
is_public=$YNH_APP_ARG_IS_PUBLIC
language=$YNH_APP_ARG_LANGUAGE
password=$YNH_APP_ARG_PASSWORD
with_sftp=$YNH_APP_ARG_WITH_SFTP
with_mysql=$YNH_APP_ARG_WITH_MYSQL

app=$YNH_APP_INSTANCE_NAME

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

final_path=/var/www/$app
test ! -e "$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..."

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=$app --key=language --value=$language
ynh_app_setting_set --app=$app --key=with_sftp --value=$with_sftp
ynh_app_setting_set --app=$app --key=with_mysql --value=$with_mysql

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

if ! ynh_package_is_installed --package="gemserv-ynh-deps"
then
	yunohost tools update
	yunohost app install gemserv --force
fi

ynh_install_app_dependencies $pkg_dependencies

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

if [ $with_sftp -eq 1 ]
then
	groups="sftp.app"
else
	groups=""
fi

ynh_system_user_create --username=$app --home_dir="$final_path" --groups="$groups"

if [ $with_sftp -eq 1 ]
then
	# Add the password to this user
	chpasswd <<< "${app}:${password}"
	ynh_app_setting_set --app=$app --key=password --value="$password"
fi

#=================================================
# CREATE A MYSQL DATABASE
#=================================================

if [ $with_mysql -eq 1 ]
then
	ynh_script_progression --message="Creating a MySQL database..."

	db_name=$(ynh_sanitize_dbid --db_name=$app)
	db_user=$db_name
	ynh_app_setting_set --app=$app --key=db_name --value=$db_name
	ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name
fi

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

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/www/htmgem"

#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..."

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring PHP-FPM..."

# Create a dedicated PHP-FPM config
ynh_add_fpm_config

#=================================================
# SPECIFIC SETUP
#=================================================
# BUILD DEFAULT CAPSULE
#=================================================
ynh_script_progression --message="Building default capsule..."

if [ $with_sftp -eq 1 ]
then
	ynh_add_config --template="../sources/www/index.gmi" --destination="$final_path/www/index.gmi"
else
	ynh_add_config --template="../sources/www/index_no_sftp.gmi" --destination="$final_path/www/index.gmi"
fi

chmod 644 "$final_path/www/index.gmi"
chown $app:$app "$final_path/www/index.gmi"

if [ $with_mysql -eq 1 ]; then
	# Store the database access
	echo -e "# MySQL Database
name: ${db_name}\nuser: ${db_name}\npass: ${db_pwd}" > ../sources/db_access.txt

	# Copy files to the right place
	cp -r "../sources/db_access.txt" "$final_path/db_access.txt"
fi

#=================================================
# APPLY RIGHTS
#=================================================
ynh_script_progression --message="Apply rights..."

chown -R $app:www-data "$final_path"

# Home directory of the user needs to be owned by root to allow
# SFTP connections
chown root:root "$final_path"
setfacl -m g:$app:r-x "$final_path"
setfacl -m g:www-data:r-x "$final_path"
setfacl -m g:gemserv:r-x "$final_path"
chmod o-rwx "$final_path"

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

ynh_add_config --template="../conf/server.toml" --destination="/etc/gemserv/config.d/$domain.toml"

ynh_systemd_action --service_name=gemserv --action=reload

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring permissions..."

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	ynh_permission_update --permission="main" --add="visitors"
fi

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..."

ynh_systemd_action --service_name=nginx --action=reload

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

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