#!/bin/bash
# info: update system queue
# options: pipe
#
# This function is responsible queue processing. Restarts of services,
# scheduled backups, web log parsing and other heavy resource consuming
# operations are handled by this script. It helps to optimize system behaviour.
# In a nutshell Apache will be restarted only once even if 10 domains are
# added or deleted.


#----------------------------------------------------------#
#                    Variable&Function                     #
#----------------------------------------------------------#
# Argument defenition
pipe=$1

# Importing system enviroment  as we run this script
# mostly by cron wich not read it by itself
source /etc/profile.d/vesta.sh

# Importing variables
source $VESTA/conf/vars.conf
source $V_CONF/vesta.conf
source $V_FUNC/shared.func

# Export PATH for cron
PATH=$PATH:$V_BIN

# Defining pipe functions
restart_pipe() {
    for service in $(cat $V_QUEUE/restart.pipe |awk '!x[$0]++'); do
        v_restart_$service
    done
    echo > $V_QUEUE/restart.pipe
}

stats_pipe() {
    bash $V_QUEUE/stats.pipe
}

disk_pipe() {
    bash $V_QUEUE/disk.pipe
}

traff_pipe() {
    bash $V_QUEUE/traffic.pipe
}

backup_pipe() {
    for user in $(cat $V_QUEUE/backup.pipe |awk '!x[$0]++' ); do
        sed -i "/^$user$/d" $V_QUEUE/backup.pipe
        v_backup_user $user
        # Send notification to user
    done
}



#----------------------------------------------------------#
#                    Verifications                         #
#----------------------------------------------------------#

# Checking arg number
check_args '1' "$#" 'pipe'

# Checking argument format
format_validation 'pipe'


#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

case $pipe in
    restart)    restart_pipe ;;
    stats)      stats_pipe ;;
    backup)     backup_pipe ;;
    disk)       disk_pipe ;;
    traffic)    traff_pipe ;;
    *)          check_args '1' '0' 'pipe'
esac


#----------------------------------------------------------#
#                       Vesta                              #
#----------------------------------------------------------#

# Logging
log_event 'system' "$V_EVENT"

exit