#!/bin/bash

# get real path of softlink
get_real_path() {
    local f="$1"
    while [ -h "$f" ]; do
        ls=`ls -ld "$f"`
        link=`expr "$ls" : '.*-> \(.*\)$'`
            if expr "$link" : '/.*' > /dev/null; then
            f="$link"
        else
            f=`dirname "$f"`/"$link"
        fi
    done
    eval "$2"="'$f'"
}

get_real_path "$0" prg_path
echo "Script Path [$prg_path]"

# Service Home
pushd $(dirname "$prg_path") > /dev/null
SERVICE_HOME=$(dirname $(pwd))
popd > /dev/null

# enter service home
pushd "$SERVICE_HOME"

time=$(date '+%Y%m%d%H%M%S')

database='ambition_crm'
db_user='root'
db_password='696@2^~)oZ@^#*Q'
backup_dir="$SERVICE_HOME/backup/$database"

# create backup dir if not exists
[ ! -e "$backup_dir" ] && mkdir -p "$backup_dir"

mysqldump -u"$db_user" -p"$db_password" "$database" | gzip > "$backup_dir/${time}.sql.gz"

# remove 30 days ago backups
find "$backup_dir" -name "*.sql.gz" -type f -mtime +30 -exec rm -rf {} \; > /dev/null 2>&1

# back to previous dir
popd > /dev/null