#!/bin/bash
#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source ../settings/scripts/_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

### If it's a multi-instance app, meaning it can be installed several times independently
### The id of the app as stated in the manifest is available as $YNH_APP_ID
### The instance number is available as $YNH_APP_INSTANCE_NUMBER (equals "1", "2", ...)
### The app instance name is available as $YNH_APP_INSTANCE_NAME
###    - the first time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample
###    - the second time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample__2
###    - ynhexample__{N} for the subsequent installations, with N=3,4, ...
### The app instance name is probably what interests you most, since this is
### guaranteed to be unique. This is a good unique identifier to define installation path,
### db names, ...
app="zabbix"
final_path="/var/www/zabbix"
#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================

### If the app uses nginx as web server (written in HTML/PHP in most cases), the final path should be "/var/www/$app".
### If the app provides an internal web server (or uses another application server such as uwsgi), the final path should be "/opt/yunohost/$app"
rm -fr $final_path

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================

domain=$(ynh_app_setting_get $app domain)
#path_url=$(ynh_app_setting_get $app path) #not used
#admin=$(ynh_app_setting_get $app admin) #not used
is_public=$(ynh_app_setting_get $app is_public)
#language=$(ynh_app_setting_get $app language) #not used
nonfree=$(ynh_app_setting_get $app nonfree)


#=================================================
# INSTALL DEPENDENCIES
#=================================================

ynh_print_info "Install Zabbix repository"

wget -q "https://repo.zabbix.com/zabbix/4.0/debian/pool/main/z/zabbix-release/zabbix-release_4.0-2+stretch_all.deb"
dpkg -i zabbix-release_*.deb
rm zabbix-release_*.deb

ynh_print_info "Update and install dependencies"
ynh_package_update
ynh_install_app_dependencies libapr1 libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap liblua5.2-0 php7.0 php-bcmath php7.0-bcmath ttf-dejavu-core php7.0-bcmath patch smistrip unzip wget fping libcap2-bin libiksemel3 libopenipmi0 libpam-cap libsnmp-base libsnmp30 snmptrapd snmpd libjs-prototype jq zabbix-server-mysql zabbix-agent zabbix-frontend-php

DEBIAN_FRONTEND=noninteractive apt-mark hold zabbix-server-mysql zabbix-frontend-php

sed -i "s/# fr_FR.UTF-8 UTF-8/fr_FR.UTF-8 UTF-8/g" /etc/locale.gen
locale-gen


ln -s /usr/share/zabbix /var/www/zabbix
rm $final_path/conf/zabbix.conf.php

ynh_app_setting_set $app final_path $final_path

#=================================================
# NGINX CONFIGURATION
#=================================================

### `ynh_add_nginx_config` will use the file conf/nginx.conf

# Create a dedicated nginx config

ynh_restore_file "/etc/nginx/conf.d/$domain.d/$app.conf"

#=================================================
# PHP-FPM CONFIGURATION
#=================================================

ynh_restore_file "/etc/php/7.0/fpm/pool.d/$app.conf"

# Restore sudo file
ynh_restore_file "/etc/sudoers.d/zabbix"

#=================================================
# Restore db
#================================================= 

db_name=$(ynh_app_setting_get $app db_name)
db_user=$(ynh_app_setting_get $app db_user)
db_pwd=$(ynh_app_setting_get $app mysqlpwd)

ynh_mysql_setup_db "$db_user" "$db_name" "$db_pwd"
ynh_mysql_connect_as "$db_name" "$db_pwd" "$db_name" < ./db.sql

#=================================================
# Restore configs files
#=================================================

### `ynh_replace_string` is used to replace a string in a file.
### (It's compatible with sed regular expressions syntax)

ynh_restore_file "/usr/share/zabbix/conf/zabbix.conf.php"

chown -R www-data. /usr/share/zabbix

ynh_restore_file "/etc/zabbix"

# systemd and yunohost service management
systemctl enable zabbix-server && systemctl start zabbix-server

yunohost service add snmpd -d "Management of SNMP Daemon"
yunohost service add zabbix-server -d "Management Zabbix server daemon : Collect, agregate, compute and notify"
yunohost service add zabbix-client -d "Management Zabbix client daemon : send informations about this host to the server"

#=================================================
# SETUP LOGROTATE
#=================================================

### `ynh_use_logrotate` is used to configure a logrotate configuration for the logs of this app.
### Use this helper only if there is effectively a log file for this app.
### If you're not using this helper:
###		- Remove the section "BACKUP LOGROTATE" in the backup script
###		- Remove also the section "REMOVE LOGROTATE CONFIGURATION" in the remove script
###		- As well as the section "RESTORE THE LOGROTATE CONFIGURATION" in the restore script
###		- And the section "SETUP LOGROTATE" in the upgrade script

# Use logrotate to manage application logfile(s)
#ynh_use_logrotate
#no need, use native logrotate in zabbix packages

#=================================================
# SETUP 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
#=================================================

systemctl reload nginx
systemctl reload php7.0-fpm

# Reload SSOwat config
yunohost app ssowatconf

#test if zabbix server is started
check_proc_zabbixagent

#test if zabbix agent is started
check_proc_zabbixserver