#!/bin/bash

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

source _common.sh
source ynh_send_readme_to_admin__2
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
admin=$YNH_APP_ARG_ADMIN
is_public=$YNH_APP_ARG_IS_PUBLIC

app=$YNH_APP_INSTANCE_NAME

admin_mail=$(ynh_user_get_info --username=$admin --key=mail)
admin_token=$(ynh_string_random --length=48 | base64)

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

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..."

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=$app --key=admin_token --value=$admin_token

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

# Find an available port
websocket_port=$(ynh_find_port --port=3012)
ynh_app_setting_set --app=$app --key=websocket_port --value="$websocket_port"

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

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

ynh_install_app_dependencies $pkg_dependencies

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

# 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..."

ynh_app_setting_set --app=$app --key=final_path --value=$final_path

# Download, check integrity, uncompress the source of vaultwarden from app.src to his build directory
ynh_setup_source --dest_dir="$final_path/build/" --source_id="app"

# Download, check integrity, uncompress and patch the source from web.src
ynh_setup_source --dest_dir="$final_path/live/web-vault/" --source_id="web"

mkdir -p "$final_path/.rustup"
mkdir -p "$final_path/.cargo"

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

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

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC SETUP
#=================================================
# MAKE INSTALL
#=================================================
ynh_script_progression --message="Making install..."

# Install rustup with the toolchain needed by vaultwarden
pushd "$final_path"
	ynh_exec_as "$app" RUSTUP_HOME="$final_path/.rustup" CARGO_HOME="$final_path/.cargo" bash -c 'curl -sSf -L https://static.rust-lang.org/rustup.sh | sh -s -- -y --default-toolchain nightly'
popd

export PATH="$PATH:$final_path/.cargo/bin:$final_path/.local/bin:/usr/local/sbin"

# Compile vaultwarden
pushd "$final_path"/build
	ynh_exec_warn_less ynh_exec_as "$app" env PATH="$PATH" CARGO_HOME="$final_path/.cargo" $final_path/.cargo/bin/cargo build --features sqlite --release
popd

# Install vaultwarden
cp -af "$final_path/build/target/release/vaultwarden" "$final_path/live/vaultwarden"

# Remove build files and rustup
ynh_secure_remove --file="$final_path/build"
ynh_secure_remove --file="$final_path/.cargo"
ynh_secure_remove --file="$final_path/.rustup"

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

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

mkdir -p $datadir

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

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

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

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

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

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..."

yunohost service add $app --description="$app daemon for vaultwarden" --log="/var/log/$app/$app.log"

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

# Start a systemd service
ynh_systemd_action --service_name=$app --action="start" --log_path="systemd" --line_match="Rocket has launched from" --length=100

#=================================================
# SETUP FAIL2BAN
#=================================================
ynh_script_progression --message="Configuring Fail2Ban..."

# Create a dedicated Fail2Ban config
mkdir -p "/var/log/$app"
touch "/var/log/$app/$app.log"
chown -R $app:$app "/var/log/$app"
ynh_add_fail2ban_config --logpath="/var/log/$app/$app.log" --failregex="^.*Username or password is incorrect\. Try again\. IP: <HOST>\. Username:.*$"

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

# 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_create --permission="api" --url="/api" --additional_urls="/identity/connect/token" --allowed="visitors" --auth_header="false" --show_tile="false" --protected="true"
ynh_permission_create --permission="admin" --url="/admin" --allowed="$admin" --show_tile="false"

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

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# SEND A README FOR THE ADMIN
#=================================================
ynh_script_progression --message="Sending a readme for the admin..."

ynh_send_readme_to_admin --app_message="../conf/msg_install" --recipients="$admin_mail" --type='install'

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

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