#!/bin/bash

# View logs in real time Plugins
# Syntax: log <domain> <option>
# Options: -wp, -error, -mail, -php o -fpm, -mysql, -only-error
# Notes: If no domain or option is entered, access logs are displayed.

source /opt/webinoly/lib/general
domain=$1
opt=$2

error() {
	echo ""
	echo "${red} Log file not found!!! ${end}"
	echo ""
	exit 1
}

# Validations
if [[ $domain =~ ^(-error|-wp)$ || $domain == "-only-error="* ]]; then
	domain=$2
	opt=$1
fi

# Extract value if exist
if [[ $opt == "-only-error="* ]]; then
	value=$(echo "${opt}" | cut -d'=' -f 2 -s)
	opt=$(echo "${opt}" | cut -d'=' -f 1 -s)
fi

if [[ -n $opt ]] && ! [[ $opt =~ ^(-error|-wp|-only-error)$ ]]; then
	echo "${red}[ERROR] Please, enter a valid option!${end}"
	exit 1
fi


if [[ -z $opt ]]; then
	case "$domain" in
		"-mail")
			if [[ -a /var/log/mail.log && -a /var/log/mail.err ]]; then
				sudo tail -f /var/log/mail.log /var/log/mail.err
			elif [[ -a /var/log/mail.log ]]; then
				sudo tail -f /var/log/mail.log
			elif [[ -a /var/log/mail.err ]]; then
				sudo tail -f /var/log/mail.err
			else
				error
			fi
			;;
		"-fpm"|"-php")
			if [[ -a /var/log/php/$(conf_read php-ver)/fpm.log ]]; then
				sudo tail -f /var/log/php/$(conf_read php-ver)/*.log
			else
				error
			fi
			;;
		"-mysql")
			if [[ -a /var/log/mysql/error.log ]]; then
				sudo tail -f /var/log/mysql/*.log
			else
				error
			fi
			;;
	esac
fi


# Turn On/Off Access Logs
if [[ $opt == "-only-error" ]]; then
	if ! [[ $value =~ ^(on|off)$ ]]; then
		echo "${red}[ERROR] Empty or not valid parameter for Only-Error!${end}"
		exit 1
	fi
	
	# Global-Conf
	if [[ -z $domain ]]; then
		islog=$( grep -F "access_log off;" /etc/nginx/nginx.conf )
		if [[ $value == "on" ]]; then
			if [[ -z $islog ]]; then
				sudo sed -i '/access_log/c \	access_log off;' /etc/nginx/nginx.conf
				echo "${gre}Only-Error Log was successfully enabled (global)!${end}"
			else	
				echo "${red}Only-Error Log is already enabled (global)!${end}"
			fi
		elif [[ $value == "off" ]]; then
			if [[ -n $islog ]]; then
				sudo sed -i "/access_log/c \	access_log \/var\/log\/nginx\/access.log;" /etc/nginx/nginx.conf
				echo "${gre}Only-Error Log was successfully disabled (global)!${end}"
			else	
				echo "${red}Only-Error Log is already disabled (global)!${end}"
			fi
		fi
	fi
	
	# Per site
	if [[ -n $domain && -a /etc/nginx/sites-available/$domain ]]; then
		islog=$( grep -F "access_log off;" /etc/nginx/sites-available/$domain )
		if [[ $value == "on" ]]; then
			if [[ -z $islog ]]; then
				sudo sed -i '/access_log/c \	access_log off;' /etc/nginx/sites-available/$domain
				echo "${gre}Only-Error Log was successfully enabled for ${blu}${domain} ${gre}site!${end}"
			else	
				echo "${red}Access Log is already enabled for ${blu}${domain} ${red}site!${end}"
			fi
		elif [[ $value == "off" ]]; then
			if [[ -n $islog ]]; then
				sudo sed -i "/access_log/c \	access_log \/var\/log\/nginx\/${domain}.access.log we_log;" /etc/nginx/sites-available/$domain
				echo "${gre}Only-Error Log was successfully disabled for ${blu}${domain} ${gre}site!${end}"
			else	
				echo "${red}Access Log is already disabled for ${blu}${domain} ${red}site!${end}"
			fi
		fi
	elif [[ -n $domain && ! -a /etc/nginx/sites-available/$domain ]]; then
		echo "${red}[ERROR] Domain not found!${end}"
	fi
	exit 0
fi


# Show the correct log file
if [[ "$opt" == "-error" && -z "$domain" && -a /var/log/nginx/error.log ]]; then
	sudo tail -f /var/log/nginx/*error.log
elif [[ "$opt" == "-error" && -n "$domain" && -a /var/log/nginx/$domain.error.log ]]; then
	sudo tail -f /var/log/nginx/$domain.error.log
elif [[ "$opt" == "-wp" && -n "$domain" && -a /var/www/$domain/htdocs/wp-content/debug.log ]]; then
	sudo tail -f /var/www/$domain/htdocs/wp-content/debug.log
elif [[ -z "$domain" && -z "$opt" && -a /var/log/nginx/access.log ]]; then
	sudo tail -f /var/log/nginx/*access.log
elif [[ -n "$domain" && -z "$opt" && -a /var/log/nginx/$domain.access.log ]]; then
	sudo tail -f /var/log/nginx/$domain.access.log
else
	error
fi