#!/bin/bash



# Checking Permissions
Permission=$(id -u)
if [ $Permission -ne 0 ] 
then
        echo -e "\033[31m Root Privilege Required... \e[0m"
        echo -e "\033[31m Uses:  sudo $0 \e[0m"
        exit 100 
fi


# Capture Errors
OwnError()
{
        echo -e "[ $0 ][ `date` ] \033[31m $@ \e[0m" | tee -ai $ERRORLOG
        exit 101
}


# Make Variables Available For Later Use
LOGDIR=/var/log/easyengine
MAINLOG=/var/log/easyengine/main.log
ERRORLOG=/var/log/easyengine/error.log



# Pre Checks To Avoid Later Screw Ups
# Checking Logs Directory
if [ ! -d $LOGDIR ]
then
	echo -e "\033[34m Creating easyengine log directory..." 
        mkdir -p $LOGDIR || OwnError "Unable to create log directory $LOGDIR"
else
        echo -e "\033[34m Easyengine log directory found...  \e[0m" 
fi

# Checking Tee
if [ ! -x  /usr/bin/tee ]
then
        echo -e "\033[31m Tee command not found !! \e[0m"
        echo -e "\033[34m Installing tee  \e[0m"
        sudo apt-get -y install coreutils || OwnError "Unable to install tee"
fi

# Checking Wget
if [ ! -x  /usr/bin/wget ]
then
        echo -e "\033[31m Wget command not found !! \e[0m"
        echo -e "\033[34m Installing wget  \e[0m"
        sudo apt-get -y install wget || OwnError "Unable to install wget"
fi

# Checking Tar
if [ ! -x  /bin/tar ]
then
        echo -e "\033[31m Tar command not found !! \e[0m"
        echo -e "\033[34m Installing tar  \e[0m"
        sudo apt-get -y install tar || OwnError "Unable to install tar"
fi

# Checking Name Servers
if [[ -z $(cat /etc/resolv.conf | grep -v ^#) ]]
then
        echo -e "\033[31m No nameservers detected !! \e[0m" | tee -ai $ERRORLOG
        echo -e "\033[31m Please configure /etc/resolv.conf \e[0m" | tee -ai $ERRORLOG
        exit 100
fi
# Pre Checks End



# Easy Engine System Settings
if [ $1 = "system" ]
then
	# Easy Engine Install
	if [ $2 = "install" ]
	then
		
		if [ $3 = "nginx" ]
		then
			# Install Python Software Properties
			sudo apt-get -y install python-software-properties \
			|| OwnError "Unable to install python software properties"

			# Add Nginx Launchpad Repository
			sudo add-apt-repository ppa:nginx/stable \
			|| OwnError "Unable to add nginx launchpad repository"

			# Update The APT Cache
			sudo apt-get update || OwnError "Unable to update apt cache"

			# Install Nginx
			sudo apt-get -y install nginx || OwnError "Unable to install nginx"
			
		elif [$3 = "php" ]
		then

			# Install Python Software Properties
			sudo apt-get -y install python-software-properties \
			|| OwnError "Unable to install python software properties"

			# Add PHP Launchpad Repository
			sudo add-apt-repository ppa:ondrej/php5 \
			|| OwnError "Unable to add php5 launchpad repository"

			# Update The APT Cache
			sudo apt-get update || OwnError "Unable to update apt cache"

			# Install PHP5
			sudo apt-get -y install php5-common php5-mysql php5-xmlrpc \
			php5-cgi php5-curl php5-gd php5-cli php5-fpm php-apc php-pear \
			php5-dev php5-imap php5-mcrypt || OwnError "Unable to install php5"
			
		elif [ $3 = "mysql" ]
		then

			# Update The APT Cache
			sudo apt-get update || OwnError "Unable to update apt cache"

			# Install MySQL
			sudo apt-get -y install mysql-server mysqltuner \
			|| OwnError "Unable to install mysql"			

		elif [ $3 = "postfix" ]
		then
			# Update The APT Cache
			sudo apt-get update || OwnError "Unable to update apt cache"
			
			# Install Postfix
			sudo apt-get -y install postfix || OwnError "Unable to install postfix"

		elif [ $3 = "--all" ]
		then
			
			# Install Python Software Properties
                        sudo apt-get -y install python-software-properties \
                        || OwnError "Unable to install python software properties"

                        # Add Nginx Launchpad Repository
                        sudo add-apt-repository ppa:nginx/stable \
                        || OwnError "Unable to add nginx launchpad repository"

			# Add PHP Launchpad Repository
                        sudo add-apt-repository ppa:ondrej/php5 \
                        || OwnError "Unable to add php5 launchpad repository"

                        # Update The APT Cache
                        sudo apt-get update || OwnError "Unable to update apt cache"

			# Install Nginx PHP5 MySQL Postfix
                        sudo apt-get -y install nginx php5-common php5-mysql php5-xmlrpc \
                        php5-cgi php5-curl php5-gd php5-cli php5-fpm php-apc php-pear \
                        php5-dev php5-imap php5-mcrypt mysql-server mysqltuner postfix \
			|| OwnError "Unable to install nginx php5 mysql postfix"

		fi
	fi

	# Easy Engine Remove
	if [ $2 = "remove" ]
	then
		
		if [ $3 = "nginx" ]
                then
			# Remove Nginx
			sudo apt-get -y remove nginx || OwnError "Unable to remove nginx"

		elif [ $3 = "php" ]
                then

			# Remove PHP5
			sudo apt-get -y remove php5-common php5-mysql php5-xmlrpc \
                        php5-cgi php5-curl php5-gd php5-cli php5-fpm php-apc php-pear \
                        php5-dev php5-imap php5-mcrypt || OwnError "Unable to remove php5"

		elif [ $3 = "mysql" ]
		then

			# Remove MySQL
			sudo apt-get -y remove mysql-server mysqltuner \
                        || OwnError "Unable to remove mysql"

		elif [ $3 = "postfix" ]
		then

			# Remove Postfix
			sudo apt-get -y remove postfix || OwnError "Unable to remove postfix"

		elif [ $3 = "--all" ]
		then

			# Remove All
			sudo apt-get -y remove nginx php5-common php5-mysql php5-xmlrpc \
                        php5-cgi php5-curl php5-gd php5-cli php5-fpm php-apc php-pear \
                        php5-dev php5-imap php5-mcrypt mysql-server mysqltuner postfix \
                        || OwnError "Unable to remove nginx php5 mysql postfix"	

		fi
	fi

	# Easy Engine Purge
	if [ $2 = "purge" ]
	then
		
		if [ $3 = "nginx" ]
                then
			# Remove Nginx
			sudo apt-get -y remove --purge nginx || OwnError "Unable to purge nginx"

		elif [ $3 = "php" ]
                then

			# Remove PHP5
			sudo apt-get -y remove --purge php5-common php5-mysql php5-xmlrpc \
                        php5-cgi php5-curl php5-gd php5-cli php5-fpm php-apc php-pear \
                        php5-dev php5-imap php5-mcrypt || OwnError "Unable to purge php5"

		elif [ $3 = "mysql" ]
		then

			# Remove MySQL
			sudo apt-get -y remove --purge mysql-server mysqltuner \
                        || OwnError "Unable to purge mysql"

		elif [ $3 = "postfix" ]
		then

			# Remove Postfix
			sudo apt-get -y remove --purge postfix || OwnError "Unable to purge postfix"

		elif [ $3 = "--all" ]
		then

			# Remove All
			sudo apt-get -y remove --purge nginx php5-common php5-mysql php5-xmlrpc \
                        php5-cgi php5-curl php5-gd php5-cli php5-fpm php-apc php-pear \
                        php5-dev php5-imap php5-mcrypt mysql-server mysqltuner postfix \
                        || OwnError "Unable to purge nginx php5 mysql postfix"	

		fi
	fi

elif [ $1 = "site" ]
then
	echo "Under Developments !!"

elif [ $1 = "config" ]
then

	echo "Under Developments !!"

else
	echo "Usage: $0 [OPTION] [ARGUMENTS]..."
	echo "Admin tools for Nginx based wordpress sites management."

	echo "OPTIONS:"
	echo " $0 [system] [install|remove|purge] [nginx|php|mysql|postfix|--all]"
	echo " $0 [site] [read|craete|update|delete] [sitename]"
	echo " $0 [config] [set|get] [memory|timeout]"

	echo "Exit status:"
	echo "   0 if OK,"
	echo " 100 sudo privilege required,"
	echo " 101 command failed to execute,"

fi