#!/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

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=/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=$app --key=is_public --value=$is_public

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Configuring firewall..." --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=20

ynh_install_app_dependencies $pkg_dependencies

# Install Nodejs
ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version

# 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"

#=================================================
# CREATE A POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Creating a PostgreSQL database..." --weight=2

db_name=$(ynh_sanitize_dbid --db_name=$app)
db_user=$db_name
db_pwd=$(ynh_string_random --length=30)

ynh_app_setting_set --app=$app --key=db_name --value=$db_name
ynh_app_setting_set --app=$app --key=db_pwd  --value=$db_pwd

ynh_psql_test_if_first_run
ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd

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

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..." --weight=2

# Create a dedicated NGINX config
ynh_add_nginx_config

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

#=================================================
# SPECIFIC SETUP
#==============================================
# INSTALL CODIMD
#==============================================
ynh_script_progression --message="Building HedgeDoc... (this will take some time and resources!)" --weight=240

pushd "$final_path" || ynh_die

	ynh_use_nodejs
	bin/setup
	ynh_exec_warn_less yarn run build

popd || ynh_die

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

ynh_replace_string --match_string="__ENV_PATH__"  --replace_string="$PATH"    --target_file="../conf/systemd.service"
ynh_replace_string --match_string="__YNH_NPM__"   --replace_string="$ynh_npm" --target_file="../conf/systemd.service"

ynh_add_systemd_config

#=================================================
# MODIFY A CONFIG FILE
#=================================================
ynh_script_progression --message="Modifying a config file..."

cp ../conf/config.json.example "$final_path/config.json"

# Main config File
ynh_replace_string --match_string="__PORT__"    --replace_string="$port"     --target_file="$final_path/config.json"
ynh_replace_string --match_string="__DOMAIN__"  --replace_string="$domain"   --target_file="$final_path/config.json"
ynh_replace_string --match_string="__PATH__"    --replace_string="${path_url:1}" --target_file="$final_path/config.json"
ynh_replace_string --match_string="__DB_USER__" --replace_string="$db_user"  --target_file="$final_path/config.json"
ynh_replace_string --match_string="__DB_NAME__" --replace_string="$db_name"  --target_file="$final_path/config.json"
ynh_replace_string --match_string="__DB_PASS__" --replace_string="$db_pwd"   --target_file="$final_path/config.json"
ynh_replace_string --match_string="__APP__"     --replace_string="$app"      --target_file="$final_path/config.json"

ynh_store_file_checksum --file="$final_path/config.json"

cp ../conf/.sequelizerc.example "$final_path/.sequelizerc"

# DB Config File
ynh_replace_string --match_string="__DB_USER__" --replace_string="$db_user" --target_file="$final_path/.sequelizerc"
ynh_replace_string --match_string="__DB_NAME__" --replace_string="$db_name" --target_file="$final_path/.sequelizerc"
ynh_replace_string --match_string="__DB_PASS__" --replace_string="$db_pwd"  --target_file="$final_path/.sequelizerc"

ynh_store_file_checksum --file="$final_path/.sequelizerc"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================
ynh_script_progression --message="Securing files and directories..."

# Set permissions to app files
chown -R $app:$app $final_path

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

yunohost service add $app --description "Collaborative Markdown notes" --log="/var/log/$app/$app.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=2

# Start a systemd service
ynh_systemd_action --service_name=$app --action="start" --log_path="systemd" --line_match="HTTP Server listening"

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring SSOwat..." --weight=1

# Make app public if necessary or protect it
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 HedgeDoc completed" --last