#!/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
is_public=$YNH_APP_ARG_IS_PUBLIC
app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..." --weight=4

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

#=================================================
# ADD SWAP IF NEEDED
#=================================================
#https://github.com/zwave-js/zwave-js-ui/issues/2699
ynh_script_progression --message="Adding swap if needed for compiling..."

total_memory=$(ynh_get_ram --total)
swap_needed=0

if [ $total_memory -lt $MEMORY_NEEDED ]; then
	# Need a minimum of 2Go of memory
	swap_needed=$(($MEMORY_NEEDED - $total_memory))
	ynh_script_progression --message="Adding $swap_needed Mo to swap..."
	SD_CARD_CAN_SWAP=1
	ynh_add_swap --size=$swap_needed

fi

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

# Find an available port
port=$(ynh_find_port --port=8091)
ynh_app_setting_set --app=$app --key=port --value=$port

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

if grep dialout -q < /etc/group; then
	usermod -a -G dialout "$app"
fi
if grep i2c -q < /etc/group; then
	usermod -a -G i2c "$app"
fi
if grep gpio -q < /etc/group; then
	usermod -a -G gpio "$app"
fi


#=================================================
# INSTALL EXTRA DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=15

ynh_install_nodejs --nodejs_version=$NODEJS_VERSION
ynh_use_nodejs
ynh_exec_warn_less $ynh_npm install ---global yarn

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=8

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 $app: "$final_path"

#=================================================
# BUILD FROM SOURCE
#=================================================
ynh_script_progression --message="Building from sources..." --weight=1

pushd "$final_path"
	ynh_script_progression --message="Fetching Yarn dependencies... This can be very long, be patient !" --weight=40
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn plugin import workspace-tools
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn workspaces focus --production
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn install --network-timeout 1000000000
	#On slow/low memory system, yarn silently fails with a 0 return code and nothing seems to be doable about that so far.
	#relaunching yarn install seems to do the trick for raspberry at least as it resumes from where it fails
	#https://github.com/yarnpkg/berry/issues/3996
	#https://github.com/yarnpkg/berry/issues/5065
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn install --network-timeout 1000000000
	ynh_script_progression --message="Cleaning cache... " --weight=3
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn cache clean 2>&1
	ynh_script_progression --message="Building Yarn dependencies... This can be very long, be patient !" --weight=30
	#https://geeklearning.io/angular-aot-webpack-memory-trick/
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH NODE_OPTIONS=--max-old-space-size=2048 yarn run build
	ynh_script_progression --message="Cleaning cache... " --weight=3
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn cache clean 2>&1
popd

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


#=================================================
# REMOVE ADDITIONNAL SWAP
#=================================================
ynh_script_progression --message="Remove additionnal swap..." --weight=2

if [ $swap_needed > 0 ]; then
	ynh_del_swap
fi
#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..." --weight=2

# Create a dedicated NGINX config
ynh_add_nginx_config

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

### You can add specific configuration files.
###
### Typically, put your template conf file in ../conf/your_config_file
### The template may contain strings such as __FOO__ or __FOO_BAR__,
### which will automatically be replaced by the values of $foo and $foo_bar
###
### ynh_add_config will also keep track of the config file's checksum,
### which later during upgrade may allow to automatically backup the config file
### if it's found that the file was manually modified
###
### Check the documentation of `ynh_add_config` for more info.

######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"

### For more complex cases where you want to replace stuff using regexes,
### you shoud rely on ynh_replace_string (which is basically a wrapper for sed)
### When doing so, you also need to manually call ynh_store_file_checksum
###
### ynh_replace_string --match_string="match_string" --replace_string="replace_string" --target_file="$final_path/some_config_file"
### ynh_store_file_checksum --file="$final_path/some_config_file"

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..." --weight=2

# Create a dedicated systemd config
ynh_add_systemd_config

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

### Use these lines only if the app installation needs to be finalized through
### web forms. We generally don't want to ask the final user,
### so we're going to use curl to automatically fill the fields and submit the
### forms.

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

# Installation with curl
#####ynh_script_progression --message="Finalizing installation..." --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..." --weight=1

# Use logrotate to manage application logfile(s)
ynh_use_logrotate --logfile="/var/log/$app/$app.log"

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

yunohost service add $app --description="Zwave integration in domoticz" --log="/var/log/$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=$app --action="start" --line_match="Listening on port" -t 30 --log_path="/var/log/$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/nginx/${domain}-error.log" --failregex="Regex to match into the log for a failed login"

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring permissions..." --weight=5

# 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=1

ynh_systemd_action --service_name=nginx --action=reload

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

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