#!/bin/bash

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

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

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

ynh_clean_setup () {
	### Remove this function if there's nothing to clean before calling the remove script.
	true
}
# 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
admin=$YNH_APP_ARG_ADMIN
is_public=$YNH_APP_ARG_IS_PUBLIC
language=$YNH_APP_ARG_LANGUAGE
password=$YNH_APP_ARG_PASSWORD

app=$YNH_APP_INSTANCE_NAME

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

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..." --time --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=$app --key=language --value=$language

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Finding an available port..." --time --weight=1


# Find an available port
port=$(ynh_find_port --port=8095)
ynh_app_setting_set --app=$app --key=port --value=$port

# Optional: Expose this port publicly
# (N.B.: you only need to do this if the app actually needs to expose the port publicly.
# If you do this and the app doesn't actually need you are CREATING SECURITY HOLES IN THE SERVER !)

# Open the port
# ynh_script_progression --message="Configuring firewall..." --time --weight=1
# ynh_exec_warn_less yunohost firewall allow --no-upnp TCP $port

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


ynh_install_app_dependencies $pkg_dependencies

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

# Create a system user
ynh_system_user_create --username=$app --home_dir="$final_path"

#=================================================
# CREATE A MYSQL DATABASE
#=================================================
ynh_script_progression --message="Creating a MySQL database..." --time --weight=1


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

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

# FIXME: this should be managed by the core in the future
# Here, as a packager, you may have to tweak the ownerhsip/permissions
# such that the appropriate users (e.g. maybe www-data) can access
# files in some cases.
# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
# this will be treated as a security issue.
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..." --time --weight=1


# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring PHP-FPM..." --time --weight=1


# Create a dedicated PHP-FPM config
ynh_add_fpm_config

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

#=================================================
# CREATE DATA DIRECTORY
#=================================================
ynh_script_progression --message="Creating a data directory..." --time --weight=1


datadir=/home/yunohost.app/$app
ynh_app_setting_set --app=$app --key=datadir --value=$datadir

mkdir -p $datadir

# FIXME: this should be managed by the core in the future
# Here, as a packager, you may have to tweak the ownerhsip/permissions
# such that the appropriate users (e.g. maybe www-data) can access
# files in some cases.
# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
# this will be treated as a security issue.
chmod 750 "$datadir"
chmod -R o-rwx "$datadir"
chown -R $app:www-data "$datadir"

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


ynh_add_config --template="some_config_file" --destination="$final_path/some_config_file"

# FIXME: this should be handled by the core in the future
# You may need to use chmod 600 instead of 400,
# for example if the app is expected to be able to modify its own config
chmod 400 "$final_path/some_config_file"
chown $app:$app "$final_path/some_config_file"


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


# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# SETUP APPLICATION WITH CURL
#=================================================


# Set the app as temporarily public for curl call
ynh_script_progression --message="Configuring SSOwat..." --time --weight=1
# Making the app public for curl
ynh_permission_update --permission="main" --add="visitors"

# Installation with curl
ynh_script_progression --message="Finalizing installation..." --time --weight=1
ynh_local_curl "/INSTALL_PATH" "key1=value1" "key2=value2" "key3=value3"

# Remove the public access
ynh_permission_update --permission="main" --remove="visitors"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Configuring log rotation..." --time --weight=1


# Use logrotate to manage application logfile(s)
ynh_use_logrotate

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


yunohost service add $app --description="A short description of the app" --log="/var/log/$app/$app.log"


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


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

#=================================================
# SETUP FAIL2BAN
#=================================================
ynh_script_progression --message="Configuring Fail2Ban..." --time --weight=1

# Create a dedicated Fail2Ban config
ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failregex="Regex to match into the log for a failed login"

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring permissions..." --time --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


# Only the admin can access the admin panel of the app (if the app has an admin panel)
ynh_permission_create --permission="admin" --url="/admin" --allowed=$admin

# Everyone can access the API part
# We don't want to display the tile in the SSO so we put --show_tile="false"
# And we don't want the YunoHost admin to be able to remove visitors group to this permission, so we put --protected="true"
ynh_permission_create --permission="api" --url="/api" --allowed="visitors" --show_tile="false" --protected="true"

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --time --weight=1

ynh_systemd_action --service_name=nginx --action=reload

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

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