#!/usr/bin/env bash

PATH=/usr/local/apache2/bin:/usr/local/php/bin:/usr/local/mysql/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

# - Is this script running on terminal ?
# -
if [[ -t 1 ]] ; then
   terminal=true
   LOGGING=true
else
   terminal=false
   LOGGING=false
fi


stats_base_dir="/var/www/stats.warenform.de"

php_bin=/usr/local/php/bin/php
http_user=www-data

# - MySQL / MariaDB credentials
# -
# - Giving password on command line is insecure an sind mysql 5.5
# - you will get a warning doing so.
# - 
# - Reading username/password fro file ist also possible, using MySQL/MariaDB
# - commandline parameter '--defaults-file'.
# - 
# - Since Mysql Version 5.6, you can read username/password from
# - encrypted file.
# -
# -    Create (encrypted) option file:
# -    $ mysql_config_editor set --login-path=piwik_admin --socket=/tmp/mysql.sock  --user=piwik_admin --password
# -    $ Password:
# -
# -    Use of option file:
# -    $ mysql --login-path=local ...
# -
# - Example
# -    mysql_credential_args="--login-pat=piwik_admin"
# -    mysql_credential_args="--defaults-file=/etc/mysql/debian.cnf" (Debian default)
# -    mysql_credential_args="--defaults-file=/usr/local/mysql/sys-maint.cnf"
# -

mysql_credential_args="--login-path=piwik_admin"

error_log="/tmp/$$.err"

# --------------------------------------------------- #
# ------------------- Funktionen -------------------- #
#
usage() {
   echo 
   [ -n  "$1" ] && echo -e "Error: $1\n"

cat<<EOF

   Usage: ` basename $0` [Options ]

   Script archives piwik reports. 

   Options:

      -h   Prints this help.

      -v   Verbose Mode

           Applies only, if script is running in a console, or in otherwords: 
           parameter has no effect, if script is running as a cronjob.
           

EOF
exit 
}

echononl(){
   echo X\\c > /tmp/shprompt$$
   if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
      echo "$*\\c" 1>&2
   else
       echo -e -n "$*" 1>&2
   fi
   rm /tmp/shprompt$$
}
info (){
   echo ""
   echo -e "\t[ \033[32m\033[1mInfo\033[m ]: $*"
   echo ""
}
error (){
   echo ""
   echo -e "\t[ \033[31m\033[1mError\033[m ]: $*"
   echo ""
}
error_cron(){
   echo
   echo "----"
   echo "$1"
   echo
   echo "$2"
   echo
}
echo_ok() {
   echo -e "\033[85G[ \033[32mok\033[m ]"
   ## echo -e "  [ ok ]"
}
echo_failed(){
   echo -e "\033[85G[ \033[1;31mfailed\033[m ]"
   ## echo -e "  [ failed ]"
}
#
# ------------------ Ende Funktionen ---------------- #
# --------------------------------------------------- #

VERBOSE=false

# ---
# - Read in Commandline arguments
# ---
while getopts hv opt ; do
   case $opt in
      v) VERBOSE=true
         ;;
      h) usage
         ;;
   esac
done

cd /tmp

databases=`mysql $mysql_credential_args -N -s -e "show databases" | grep piwik_`

if $LOGGING ; then
   echo -e "\n\t\033[1;32mStarting Script for Archiving Reports of Piwik Databases\033[1;37m\033[m\n\n"
fi

declare -i sum_errors=0
for db_name in $databases ; do

   if [ -f "$stats_base_dir/$db_name/console" ];then

      if $LOGGING ; then

         echononl "\tArchiving Reports of Piwik Database \033[1m$db_name\033[m"

         # - Archive Reports
         # -
         su $http_user -s /bin/bash \
            -c "$php_bin $stats_base_dir/$db_name/console core:archive --url=https://stats.warenform.de/$db_name/" \
            > $error_log 2>&1
         if [[ $? -ne 0 ]]; then
            let "sum_errors += 1"
            echo_failed
            error "$(cat $error_log)"
         else
            echo_ok
            if $VERBOSE ; then
               echo
               echo "$(cat $error_log)"
               echo
               echo
            fi
         fi

      else

         # - Archive Reports
         # -
         su $http_user -s /bin/bash \
            -c "$php_bin $stats_base_dir/$db_name/console core:archive --url=https://stats.warenform.de/$db_name/" \
            > $error_log 2>&1
         if [[ $? -ne 0 ]]; then
            let "sum_errors += 1"
            error_cron "Error while executing archive script for database \"$db_name\"" "$(cat $error_log)"
         fi

      fi

   else

      if $LOGGING ; then
         error "Archive script \"$stats_base_dir/$db_name/console\" for database \"$db_name\" not found!"
      else
         error_cron "Error: archive script for database \"$db_name\" not found" "$stats_base_dir/$db_name/console"
      fi
      continue
   fi

done

if $LOGGING ; then
   if [[ $sum_errors -eq 0 ]]; then
      info "Script ended successfully."
   else
      error "Script ended with \033[1m${sum_errors}\033[m error(s)!"
   fi
fi

rm -f $error_log
exit 0