#!/bin/env bash
#
# Author: Amado Martinez - AmadoMartinez.mx
# License: MIT License
# Date: 2016-08-11
#
# Backup a complete wordpress installation
#

if [ $# -lt 2 ] ; then
    head -n 10 "$0" | grep "^#" | tail -n +2

    echo -e "\nUsage:\n\t$0 wordpress-directory backup-storage-directory"
    echo
    exit
fi

# todo add support for PORT config
readconf (){
    # $1 can be: NAME, USER, PASSWORD, HOST, CHARSET, COLLATE
    valstr=$(grep "DB_$1" "$2/wp-config.php" | cut -d"'" -f4)

    if [ "$1" == "HOST" ] ; then
            echo "$valstr" | cut -d: -f1
    else
            echo "$valstr"
    fi
}


datestr=$(date +%Y%m%d)
destinationdir="$2/$datestr/"
wpdir="$1"

db_name=$(readconf NAME "$wpdir")
db_user=$(readconf USER "$wpdir")
db_pass=$(readconf PASSWORD "$wpdir")
db_host=$(readconf HOST "$wpdir")

echo "Creating $destinationdir .."
mkdir -p "$destinationdir"

echo "Backing up database.."
mysqldump -u "$db_user" "-p$db_pass" -h "$db_host" "$db_name" > "$destinationdir/$db_name.sql"

echo "Creating Tar File"
tar -czf "$destinationdir/wordpress-site.tar.gz" "$wpdir"

echo "Finished backup to $destinationdir"