#!/bin/bash

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

source _common.sh
source detect_arch
source ynh_systemd_action
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
#=================================================
ynh_print_info "Retrieve arguments from the manifest ..."

domain=$YNH_APP_ARG_DOMAIN
path_url="/"
admin=$YNH_APP_ARG_ADMIN
is_public=$YNH_APP_ARG_IS_PUBLIC

password=$YNH_APP_ARG_PASSWORD
single_user=$YNH_APP_ARG_SINGLE_USER

# Bypass package_checker name not compatible with writefreely
if [ "$admin" = "package_checker" ]
then
	admin="test"
fi

app=$YNH_APP_INSTANCE_NAME

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

final_path=/var/www/$app
test ! -e "$final_path" || ynh_die "This path already contains a folder"

# Register (book) web path
ynh_webpath_register $app $domain $path_url

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_print_info "Storing installation settings..."

ynh_app_setting_set $app domain $domain
ynh_app_setting_set $app path $path_url
ynh_app_setting_set $app admin $admin
ynh_app_setting_set $app is_public $is_public

ynh_app_setting_set $app single_user $single_user

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_print_info "Configuring firewall ..."

# Find a free port
port=$(ynh_find_port 8095)
ynh_app_setting_set $app port $port

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_print_info "Installing dependencies ..."

#ynh_install_app_dependencies deb1 deb2

#=================================================
# CREATE A MYSQL DATABASE
#=================================================
ynh_print_info "Creating a mysql database ..."

db_name=$(ynh_sanitize_dbid $app)
ynh_app_setting_set $app db_name $db_name
ynh_mysql_setup_db $db_name $db_name

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_print_info "Setting up source files ..."

ynh_app_setting_set $app final_path $final_path
# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source "$final_path" $architecture

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_print_info "Configuring nginx web server..."

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_print_info "Configuring system user ..."

# Create a system user
ynh_system_user_create "$app" "$final_path"

#=================================================
# SPECIFIC SETUP
#=================================================
# SETUP SYSTEMD
#=================================================
ynh_print_info "Configuring a systemd service ..."

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# MODIFY A CONFIG FILE
#=================================================

# setup application config
cp "../conf/config.ini" "$final_path/config.ini"

ynh_replace_string "__DBNAME__" "$db_name" "$final_path/config.ini"
ynh_replace_string "__DBUSER__" "$db_name" "$final_path/config.ini"
ynh_replace_string "__DBPWD__" "$db_pwd" "$final_path/config.ini"
ynh_replace_string "__PORT__" "$port" "$final_path/config.ini"
ynh_replace_string "__DOMAIN_URL__" "https://$domain" "$final_path/config.ini"
ynh_replace_string "__SINGLEUSER__" "$single_user" "$final_path/config.ini"

#=================================================
# STORE THE CONFIG FILE CHECKSUM
#=================================================

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum "$final_path/config.ini"

#=================================================
# SPECIFIC SETUP
#=================================================
# MAKE SETUP
#=================================================

chown -R "$app":"$app" "$final_path"

pushd $final_path
	sudo -u $app ./writefreely --init-db
	sudo -u $app ./writefreely --gen-keys
	sudo -u $app ./writefreely --create-admin "$admin":"$password"
popd

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================

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

#=================================================
# ADVERTISE SERVICE IN ADMIN PANEL
#=================================================

# if using yunohost version 3.2 or more in the 'manifest.json', a description can be added
yunohost service add $app --description "$app daemon for WriteFreely" --log_type systemd

#=================================================
# SETUP SSOWAT
#=================================================
ynh_print_info "Configuring SSOwat ..."

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# unprotected_uris allows SSO credentials to be passed anyway.
	ynh_app_setting_set $app unprotected_uris "/"
fi

#=================================================
# RELOAD NGINX
#=================================================
ynh_print_info "Reloading nginx web server..."

systemctl reload nginx

#=================================================
# START SERVICE
#=================================================

ynh_systemd_action --action=start --service_name=$app

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

ynh_print_info "Installation of $app completed"