#!/bin/bash

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

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

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

# 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
language=$YNH_APP_ARG_LANGUAGE

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"

# Normalize the url path syntax
path_url=$(ynh_normalize_url_path $path_url)

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


agendav_app_check_installation() {
	echo $(yunohost app list --installed -f "$1" | grep "id:")
}

# Check whether Baïkal or Radicale is installed
baikal_install=$(agendav_app_check_installation "baikal")
radicale_install=$(agendav_app_check_installation "radicale")
if [ -n "$baikal_install" ]
then
    caldav_app=baikal
    caldav_baseurl="/cal.php/"
elif [ -n "$radicale_install" ]
then
    caldav_app=radicale
    caldav_baseurl=/
else
    ynh_die "Please install Baikal or Radicale before AgenDAV."
fi

#=================================================
# 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 language $language

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

# Install dependencies
ynh_install_app_dependencies php-cli

#=================================================
# 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 $final_path
ynh_setup_source "$final_path"

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

# Copy and set nginx configuration
ynh_add_nginx_config

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

ynh_system_user_create $app

#=================================================
# PHP-FPM CONFIGURATION
#================================================
ynh_print_info "Configuring php-fpm..."

# Copy and set php-fpm configuration
ynh_add_fpm_config

#=================================================
# SPECIFIC SETUP
#=================================================
# CREATE SETTINGS.PHP
#=================================================
ynh_print_info "Configuring agendav..."

# Generate random encryption key
encryptkey=$(ynh_string_random 24)

ynh_app_setting_set $app encryptkey "$encryptkey"

# Copy and set AgenDAV configuration
timezone=$(cat /etc/timezone)

caldav_domain=$(ynh_app_setting_get $caldav_app domain)
caldav_path=$(ynh_app_setting_get $caldav_app path)
caldav_url="https://${caldav_domain}${caldav_path%/}"

conf_path="${final_path}/web/config/settings.php"
cp ../conf/settings.php "$conf_path"

logdir=/var/log/$app

ynh_replace_string "__DBUSER__" "${db_name}"         "$conf_path"
ynh_replace_string "__DBPASS__" "${db_pwd}"         "$conf_path"
ynh_replace_string "__DBNAME__" "${db_name}"         "$conf_path"
ynh_replace_string "__ENCRYPTKEY__" "${encryptkey}" "$conf_path"
ynh_replace_string "__LOGDIR__" "${logdir}"         "$conf_path"
ynh_replace_string "__TIMEZONE__" "$timezone"       "$conf_path"
ynh_replace_string "__LANGUAGE__" "${language}"     "$conf_path"
ynh_replace_string "__CALDAV_BASEURL__" "${caldav_url}${caldav_baseurl}" "$conf_path"
ynh_replace_string "__CALDAV_DOMAIN__" "${caldav_domain}"                "$conf_path"

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

ynh_store_file_checksum "$conf_path"

#=================================================
# RUN DATABASE MIGRATIONS (INCLUDES INITIALIZATION)
#=================================================
ynh_print_info "Initialising agendav..."

(
	cd $final_path
	php agendavcli migrations:migrate --no-interaction
)

#=================================================
# SETUP LOGROTATE
#=================================================
ynh_print_info "Configuring log rotation..."

mkdir -p $logdir
chown -R $app: $logdir

# Use logrotate to manage application logfile(s)
ynh_use_logrotate

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

chown -R root: $final_path

# Only agendav user should write here
chown -R $app ${final_path}/web/var/cache/{profiler,twig}

# The agendav user should read here, but does not need to write
# Other users should not be able to read as it stores passwords.
chown -R root:$app ${final_path}/web/config/
chmod -R 750 ${final_path}/web/config/

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

systemctl reload nginx

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

ynh_print_info "Installation of $app completed"