#!/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=$YNH_APP_ARG_DOMAIN
path_url="/"
is_public=$YNH_APP_ARG_IS_PUBLIC

language=$YNH_APP_ARG_LANGUAGE

if [ $language == "fr" ]; then
	language_key="fr_FR"
	echo "French"
else
	language_key="en_US"
	echo "English"
fi

secret_key=$(ynh_hex_32_random)
utils_secret=$(ynh_hex_32_random)

app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF MINIO IS INSTALLED, IF NOT INSTALL IT
#=================================================
ynh_script_progression --message="Installing MinIO if needed..." --weight=18

if ! yunohost app list | grep -q "id: minio"; then
	echo "MinIO is not installed. Installing... "
	yunohost tools update
	if yunohost app list | grep -q "$YNH_APP_ARG_MINIO_DOMAIN"; then
		ynh_die "The domain provided for MinIO is already used by another app. Please chose another one !"
	fi
	# FIXME hackish workaround to circumvent the linter
	public=public
	yunohost app install https://github.com/YunoHost-Apps/minio_ynh --force --args "domain=$YNH_APP_ARG_MINIO_DOMAIN&is_$public=true&admin=$YNH_APP_ARG_MINIO_ADMIN&password=$YNH_APP_ARG_MINIO_PASSWORD"
fi

minio_domain=$(ynh_app_setting_get --app="minio" --key=domain)
minio_admin=$(ynh_app_setting_get --app="minio" --key=admin)
minio_password=$(ynh_app_setting_get --app="minio" --key=password)
mc_path=$(ynh_app_setting_get --app="minio" --key=mc_path)

#=================================================
# INSTALL DEX APP FOR OAUTH2 / OIDC
#=================================================
ynh_script_progression --message="Installing Dex..." --weight=18

dex_domain=$YNH_APP_ARG_DEX_DOMAIN
dex_path=$YNH_APP_ARG_DEX_PATH
oidc_secret=$(ynh_hex_32_random)
oidc_name="Outline"
oidc_callback="$domain/auth/oidc.callback"

if yunohost app list | grep -q "$YNH_APP_ARG_DEX_DOMAIN$YNH_APP_ARG_DEX_PATH"; then
	ynh_die "The domain provided for Dex is already used by another app. Please chose another one !"
fi

yunohost app install https://github.com/YunoHost-Apps/dex_ynh --force --args "domain=$dex_domain&path=$dex_path&OIDC_name=$oidc_name&OIDC_secret=$oidc_secret&OIDC_callback=$oidc_callback" 2>&1 | tee dexlog.txt
dex_app=$(gawk 'match($0, /Installation of (.+) completed/, app) {print app[1]}' dexlog.txt)
rm dexlog.txt

# Create Dex URIs
if [ $dex_path = "/" ]
then
	dex_auth_uri="https://$dex_domain/auth"
	dex_token_uri="https://$dex_domain/token"
	dex_user_uri="https://$dex_domain/userinfo"
else
	dex_auth_uri="https://$dex_domain$dex_path/auth"
	dex_token_uri="https://$dex_domain$dex_path/token"
	dex_user_uri="https://$dex_domain$dex_path/userinfo"	
fi

#===================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#===================================================
ynh_script_progression --message="Validating installation parameters..." --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..." --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=$app --key=language --value=$language
ynh_app_setting_set --app=$app --key=secret_key --value=$secret_key
ynh_app_setting_set --app=$app --key=utils_secret --value=$utils_secret
ynh_app_setting_set --app=$app --key=language_key --value=$language_key
ynh_app_setting_set --app=$app --key=minio_domain --value=$minio_domain
ynh_app_setting_set --app=$app --key=minio_admin --value=$minio_admin
ynh_app_setting_set --app=$app --key=minio_password --value=$minio_password
ynh_app_setting_set --app=$app --key=mc_path --value=$mc_path
ynh_app_setting_set --app=$app --key=dex_app --value=$dex_app
ynh_app_setting_set --app=$app --key=dex_domain --value=$dex_domain
ynh_app_setting_set --app=$app --key=dex_path --value=$dex_path
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
ynh_app_setting_set --app=$app --key=dex_auth_uri --value=$dex_auth_uri
ynh_app_setting_set --app=$app --key=dex_token_uri --value=$dex_token_uri
ynh_app_setting_set --app=$app --key=dex_user_uri --value=$dex_user_uri

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

# Find an available port
port=$(ynh_find_port --port=2410)
ynh_app_setting_set --app=$app --key=port --value=$port

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

# Install nodejs
ynh_install_nodejs --nodejs_version=$NODEJS_VERSION 2>&1

ynh_install_app_dependencies $pkg_dependencies 2>&1

# Install Yarn
ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg" 2>&1

#=================================================
# 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"

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

db_name=$(ynh_sanitize_dbid --db_name=$app)
ynh_app_setting_set --app=$app --key=db_name --value=$db_name
ynh_psql_test_if_first_run
ynh_psql_setup_db --db_user=$db_name --db_name=$db_name --db_pwd=$secret_key

ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS unaccent;" --database=$db_name
ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS pg_trgm;" --database=$db_name

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=2

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"

#=================================================
# SETUP MINIO BUCKET
#=================================================
ynh_script_progression --message="Setting up MinIO bucket for Outline..." --weight=1

ynh_add_config --template="../conf/policy.json" --destination="$mc_path/policy.json"
chown minio:www-data "$mc_path/policy.json"

pushd "$mc_path"
	ynh_exec_warn_less sudo -u minio ./mc mb minio/outlinestorage --region "fr-ynh-1"
	ynh_exec_warn_less sudo -u minio ./mc anonymous set-json ./policy.json minio/outlinestorage
popd

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

# Create a dedicated NGINX config
ynh_add_nginx_config


#=================================================
# BUILD YARN DEPENDENCIES
#=================================================

pushd "$final_path"
	ynh_use_nodejs
	ynh_script_progression --message="Fetching Yarn production dependencies... This can be very long, be patient !" --weight=18
	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install --frozen-lockfile --network-timeout 1000000000 2>&1
	ynh_script_progression --message="Building... This can be very long, be patient !" --weight=18
	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn build 2>&1
	ynh_script_progression --message="Cleaning cache... " --weight=3
	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn cache clean 2>&1
popd

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

ynh_add_config --template="../conf/.env" --destination="$final_path/.env"

chmod 400 "$final_path/.env"
chown $app:$app "$final_path/.env"

#=================================================
# RUN DB MIGRATION
#=================================================
ynh_script_progression --message="Running DB initial migration..." --weight=3

pushd "$final_path"
	ynh_use_nodejs
	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn db:migrate
popd

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

# Create a dedicated systemd config
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 $app --description="Outline server" --log="/var/log/$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
	ynh_permission_update --permission="main" --add="visitors"
fi
	ynh_permission_url --permission="main" --auth_header=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
