#!/bin/bash

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

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

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

ynh_clean_setup () {
	ynh_clean_check_starting
}
# 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=$YNH_APP_ARG_IS_PUBLIC
admin=$YNH_APP_ARG_ADMIN
password=$YNH_APP_ARG_PASSWORD

app=$YNH_APP_INSTANCE_NAME

email=$(ynh_user_get_info --username=$admin --key=mail)

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

# Check machine architecture (in particular, we don't support ARM and 32bit machines)
if [ $YNH_ARCH == "i386" ] || [ $YNH_ARCH == "armel" ] || [ $YNH_ARCH == "armhf" ] || [ $YNH_ARCH == "arm64" ]
then
	ynh_die --message="Sorry, but this app can only be installed on a x86, 64 bits machine :("
fi

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=2

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=$app --key=password --value="$password"
ynh_app_setting_set --app=$app --key=email --value=$email

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Finding an available port..." --weight=2

# Find an available port
port=$(ynh_find_port --port=3000)
ynh_app_setting_set --app=$app --key=port --value=$port

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=48

ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
ynh_exec_warn_less ynh_install_mongo --mongo_version=$mongo_version
ynh_exec_warn_less ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=3

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

#=================================================
# CREATE A MONGODB DATABASE
#=================================================
ynh_script_progression --message="Creating a MongoDB database..." --weight=5

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

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=10

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"

mkdir "/tmp/ufs"

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:$app "$final_path"
chown -R $app:$app "/tmp/ufs"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..." --weight=3

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC SETUP
#=================================================
# CONFIGURE MONGOD
#=================================================
ynh_script_progression --message="Configuring MongoDB..." --weight=10

ynh_replace_string --match_string="#  engine:" --replace_string="  engine: wiredTiger" --target_file="/etc/mongod.conf"
ynh_replace_string --match_string="#replication:" --replace_string="replication:\n  replSetName: rs01" --target_file="/etc/mongod.conf"

ynh_exec_warn_less systemctl enable mongod --quiet
ynh_systemd_action --service_name=mongod --action=restart --log_path=/var/log/mongodb/mongod.log --line_match="Waiting for connections"

if ynh_exec_warn_less ynh_mongo_exec --command="printjson(rs.status())" | grep -q "no replset config has been received"; then
	ynh_exec_warn_less ynh_mongo_exec --command="printjson(rs.initiate())" --eval
fi

#==============================================
# INSTALL ROCKETCHAT
#==============================================
ynh_script_progression --message="Building $app... (this will take some time and resources!)" --weight=29

pushd $final_path/programs/server
	ynh_use_nodejs
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn install --unsafe-perm
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="Team collaboration communication platform"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=29

ynh_systemd_action --service_name=$app --action="start" --log_path=systemd --line_match="SERVER RUNNING"

#=================================================
# 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=2

ynh_systemd_action --service_name=nginx --action=reload

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

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