#!/bin/bash

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

source _common.sh
source ynh_install_go
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
is_public=1

oidc_name=$YNH_APP_ARG_OIDC_NAME
oidc_secret=$YNH_APP_ARG_OIDC_SECRET
oidc_callback=$YNH_APP_ARG_OIDC_CALLBACK

app=$YNH_APP_INSTANCE_NAME

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

final_path=/opt/yunohost/$app
test ! -e "$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=$app --key=oidc_name --value=$oidc_name
ynh_app_setting_set --app=$app --key=oidc_secret --value=$oidc_secret
ynh_app_setting_set --app=$app --key=oidc_callback --value=$oidc_callback

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

# Find an available port
port=$(ynh_find_port --port=5556)
ynh_app_setting_set --app=$app --key=port --value=$port

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

# ynh_install_app_dependencies $pkg_dependencies

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

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

#=================================================
# 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
#=================================================
# BUILDING SOURCES AND SETTING UP THE SERVER
#=================================================

ynh_script_progression --message="Building the sources (it will take some time)..." --weight=6

ynh_exec_warn_less ynh_install_go --go_version=$GO_VERSION

pushd "$final_path"
	# Setup go exe and environnement
	ynh_use_go
	export GOPATH="$final_path/go"
	export GOCACHE="$final_path/go/.cache"
	# Build server from source
	make build 2>&1
	# Setup a nice Yunohost logo
	cp /usr/share/yunohost/admin/img/logo.08bab97e.png web/themes/light/logo.png
	ynh_secure_remove --file="$final_path/go"
popd

ynh_remove_go

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

ynh_add_config --template="config.yaml" --destination="$final_path/config.yaml"

chmod 400 "$final_path/config.yaml"
chown $app:$app "$final_path/config.yaml"

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

ynh_add_systemd_config


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

# Use logrotate to manage application logfile(s)
ynh_use_logrotate

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

yunohost service add $app --description="OpenID Connect Provider" --log="/var/log/$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 FAIL2BAN
#=================================================
#ynh_script_progression --message="Configuring Fail2Ban..." --weight=1

# Create a dedicated Fail2Ban config
#ynh_add_fail2ban_config --logpath="/var/log/dex/dex.log" --failregex="ldap: invalid password for user"

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

ynh_permission_update --permission="main" --show_tile=false


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