#! /bin/bash

# Author:   Mindaugas Mardosas, Nerijus Sapola
# Company:  Kolmisoft
# Year:     2012
# About:    MOR Billing platform settings reading/writing framework

#TODO: make oen bash_functions.sh both for c6 and c7
centos_version=$(grep -o "[0-9]" /etc/redhat-release | head -n 1)
#rocky=`cat /etc/redhat-release | grep Rocky | wc -l`

if ((centos_version <7 )); then
    . /usr/src/mor/framework/bash_functions.sh
else
    . /usr/src/mor/framework/bash_functions_c7.sh
fi


settings_config_file="/etc/mor/system.conf"

read_mor_binlog_setting()
{
    #   Author: Mindaugas Mardosas, Nerijus Sapola
    #   Year:   2012
    #   About:  This function checks if binlog is configured by administrator to be enabled on this system
    #
    #   Returns:
    #       0   - NO, MySQL binlog should not be enabled on this server
    #       1   - YES, MySQL binlog has  to be enabled on this server
    #
    #       Also returns a global variable BINLOG_SETTING which can be used later in scripts to check if MySQL binlog has to enabled

    if [ -f $settings_config_file ] && [ `awk -F"#" '{print \$1}' $settings_config_file | grep BINLOG | wc -l` == 1 ]; then
        BINLOG_SETTING=`awk -F"#" '{print \$1}' $settings_config_file | grep "BINLOG=1" | wc -l`
    fi
    return $BINLOG_SETTING
}

read_mor_replication_settings()
{
    #   Author: Mindaugas Mardosas, Nerijus Sapola
    #   Year:   2012
    #   About:  This function reads replication settings
    #
    #   Returns:
    #       REPLICATION_M - {0 - disabled; 1 - enabled}
    #       REPLICATION_S - {0 - disabled; 1 - enabled}
    #       DB_MASTER_MASTER - {"yes", "no" }
    #       DB_SLAVE  - {"yes", "no" }
    #       REPLICATION_PRESENT - { "yes", "no" }

    if [ -f $settings_config_file ] && [ `awk -F"#" '{print \$1}' $settings_config_file | grep "REPLICATION_M\|REPLICATION_S" | wc -l` == "2" ]; then
        REPLICATION_M=`awk -F"#" '{print $1}' $settings_config_file | grep REPLICATION_M | awk -F"=" '{print $2}'`
        REPLICATION_S=`awk -F"#" '{print $1}' $settings_config_file | grep REPLICATION_S | awk -F"=" '{print $2}'`
    fi

    #===================DB_MASTER_MASTER
    if [ "$REPLICATION_M" == "1" ] && [ "$REPLICATION_S" == "1" ]; then
        DB_MASTER_MASTER="yes"
    else
        DB_MASTER_MASTER="no"
    fi

    #===================REPLICATION_PRESENT

    if [ "$REPLICATION_M" == "1" ] || [ "$REPLICATION_S" == "1" ]; then
        REPLICATION_PRESENT="yes"
    else
        REPLICATION_PRESENT="no"
    fi

    #===================DB_SLAVE
    if [ "$REPLICATION_S" == "1" ]; then
        DB_SLAVE="yes"
    else
        DB_SLAVE="no"
    fi
}

read_mor_gui_settings()
{
    #   Author: Nerijus Sapola
    #   Year:   2012
    #   About:  This function reads GUI settings
    #
    #   Returns:
    #       GUI_PRESENT - {0 - GUI should not be running on server; 1 - GUI should be running on server}
    #       MAIN_GUI - { 0 - This is not main GUI, 1 - This is main GUI, 2 - GUI enabled but MAIN_GUI setting is absent

    if [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "GUI_PRESENT" | wc -l` == "1" ]; then
        GUI_PRESENT=`awk -F"#" '{print $1}' $settings_config_file | grep GUI_PRESENT | awk -F"=" '{print $2}'`
        if [ "$GUI_PRESENT" == "1" ]; then
             if [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "MAIN_GUI" | wc -l` == "1" ]; then
                 MAIN_GUI=`awk -F"#" '{print $1}' $settings_config_file | grep MAIN_GUI | awk -F"=" '{print $2}'`

             elif [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "MAIN_GUI" | wc -l` == "0" ]; then
                 MAIN_GUI="2"
             fi
        fi

    else
        # checking if values are not duplicated
        if [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "GUI_PRESENT" | wc -l` -gt "1" ]; then
            report "Duplicated values on $settings_config_file, please fix manually" 1
            exit 1
        fi
    fi
    return $GUI_PRESENT
}

read_mor_asterisk_settings()
{
    #   Author: Nerijus Sapola
    #   Year:   2012
    #   About:  This function reads Asterisk settings
    #
    #   Returns:
    #       ASTERISK_PRESENT - {0 - Asterisk should not be running on server; 1 - Asterisk should be running on server}
    #       MAXLOAD_VALUE - - {0 - maxload is not defined,  > 0 - maxload value}

    if [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "ASTERISK_PRESENT" | wc -l` == "1" ]; then
        ASTERISK_PRESENT=`awk -F"#" '{print $1}' $settings_config_file | grep ASTERISK_PRESENT | awk -F"=" '{print $2}'`
    else
        # checking if values are not duplicated
        if [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "ASTERISK_PRESENT" | wc -l` -gt "1" ]; then
            report "Duplicated values on $settings_config_file, please fix manually" 1
            exit 1
        fi
    fi

    if [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "asterisk_max_load" | wc -l` == "1" ]; then
        MAXLOAD_VALUE=`awk -F"#" '{print $1}' $settings_config_file | grep asterisk_max_load | awk -F"=" '{print $2}' | sed 's/ //g'`
    else
        MAXLOAD_VALUE="0"
    fi
    return $ASTERISK_PRESENT
}

read_mor_db_settings()
{
    #   Author: Nerijus Sapola
    #   Year:   2012
    #   About:  This function reads Asterisk settings
    #
    #   Returns:
    #       DB_PRESENT - {0 - MOR Database should not be running on server; 1 - MOR Database should be running on server}

    if [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "DB_PRESENT" | wc -l` == "1" ]; then
        DB_PRESENT=`awk -F"#" '{print $1}' $settings_config_file | grep DB_PRESENT | awk -F"=" '{print $2}'`
    else
        # checking if values are not duplicated
        if [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "DB_PRESENT" | wc -l` -gt "1" ]; then
            report "Duplicated values on $settings_config_file, please fix manually" 1
            exit 1
        fi
    fi
    return $DB_PRESENT
}

read_mor_scripts_settings()
{
    # If MAIN_DB=1 in system conf, it means that DB related scripts (aggregates, alerts, background tasks) should be running

    #   Returns:
    #       MAIN_DB_PRESENT - {0 - DB related scripts should NOT be running on server;
    #                  1 - DB related scripts should be running on server;
    #                  2 - MAIN_DB is not in definied system.conf

    if [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "MAIN_DB[ =]" | wc -l` == "1" ]; then
        MAIN_DB_PRESENT=`awk -F"#" '{print $1}' $settings_config_file | grep "MAIN_DB[ =]" | awk -F"=" '{print $2}'`

    elif [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "MAIN_DB[ =]" | wc -l` == "0" ]; then
        MAIN_DB_PRESENT=2

    # checking if values are not duplicated
    elif [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "MAIN_DB[ =]" | wc -l` -gt "1" ]; then
        report "Duplicated values on $settings_config_file, please fix manually" 1
        exit 1

    fi
    return $MAIN_DB_PRESENT
}

read_mor_pcap_settings()
{

    #  This fucntion read pcap settings
    #   Returns:
    #       PCAP_HDD_RESERVED_SPACE -
    #                  -1 - setting is not present in system.conf
    #                  -2 - inavlid value (contains non number characters)
    #                   > 0 - how much space reserve for pcapsipdump


    #       PCAP_LISTENING_NET_INTERFACE -
    #                  -1 - setting is not present in system.conf
    #                  default - default interface
    #                  name of interface

    #       PCAP_ENABLED-
    #                  -1 - setting is not present in system.conf
    #                  0 - setting is disabled
    #                  1 - setting is enabled
    #
    #
    #     PCAP_BUFFER_SIZE -
    #                  -1 - setting is not present in system.conf
    #                  pcap buffer size to set (eg 64MiB)

    PCAP_HDD_RESERVED_SPACE=""
    PCAP_LISTENING_NET_INTERFACE=""
    PCAP_ENABLED=""
    PCAP_BUFFER_SIZE=""
    PCAP_TSHARK_ENABLED=""

    local temp_value=""

    if [ -f $settings_config_file ] && [ $(awk -F"#" '{print $1}' $settings_config_file | grep -i "PCAP_HDD_RESERVED_SPACE" | wc -l) == "1" ]
    then

        temp_value=$(awk -F"#" '{print $1}' $settings_config_file | sed 's/[[:space:]]//g' | grep -i "PCAP_HDD_RESERVED_SPACE" | awk -F"=" '{print $2}')
        if echo $temp_value | grep -qE "^[0-9]+$"
        then
            PCAP_HDD_RESERVED_SPACE="$temp_value"
        else
            PCAP_HDD_RESERVED_SPACE="-2"
        fi
    else
        PCAP_HDD_RESERVED_SPACE="-1"
    fi

    temp_value=""

    if [ -f $settings_config_file ] && [ $(awk -F"#" '{print $1}' $settings_config_file | grep -i "PCAP_LISTENING_NET_INTERFACE" | wc -l) == "1" ]
    then

        temp_value=$(awk -F"#" '{print $1}' $settings_config_file | sed 's/[[:space:]]//g' | grep -i "PCAP_LISTENING_NET_INTERFACE"  | awk -F"=" '{print $2}')
        if echo $temp_value | grep -qiF "default"
        then
            PCAP_LISTENING_NET_INTERFACE="default"
        else
            PCAP_LISTENING_NET_INTERFACE="$temp_value"
        fi
    else
        PCAP_LISTENING_NET_INTERFACE="-1"
    fi

    if [ -f $settings_config_file ] && [ $(awk -F"#" '{print $1}' $settings_config_file | grep -i "PCAP_ENABLED" | wc -l) == "1" ]
    then

        temp_value=$(awk -F"#" '{print $1}' $settings_config_file | sed 's/[[:space:]]//g' | grep -i "PCAP_ENABLED"  | awk -F"=" '{print $2}')
        if [ $temp_value == "1" ]; then
            PCAP_ENABLED="1"
        else
            PCAP_ENABLED="0"
        fi

    else
        PCAP_ENABLED="-1"
    fi


    if [ -f $settings_config_file ] && [ $(awk -F"#" '{print $1}' $settings_config_file | grep -i "PCAP_BUFFER_SIZE" | wc -l) == "1" ]
    then

        temp_value=$(awk -F"#" '{print $1}' $settings_config_file | sed 's/[[:space:]]//g' | grep -i "PCAP_BUFFER_SIZE"  | awk -F"=" '{print $2}')
        if  echo $temp_value | grep -qE '^[[:digit:]]+MiB$'; then
            PCAP_BUFFER_SIZE="$temp_value"
        else
            PCAP_BUFFER_SIZE="-1"
        fi
    else
        PCAP_BUFFER_SIZE="-1"

    fi

    if [ -f $settings_config_file ] && [ $(awk -F"#" '{print $1}' $settings_config_file | grep -i "pcap_tshark_active" | wc -l) == "1" ]
    then

        temp_value=$(awk -F"#" '{print $1}' $settings_config_file | sed 's/[[:space:]]//g' | grep -i "pcap_tshark_active"  | awk -F"=" '{print $2}')
        if [ $temp_value == "1" ];  then
            PCAP_TSHARK_ENABLED="$temp_value"
        else
            PCAP_TSHARK_ENABLED="0"
        fi
    else
        PCAP_TSHARK_ENABLED="-1"

    fi


}

read_mor_heartbeat_settings()
{
    #  This fucntion reads Heartbeat settings
    #   On return set global variables
    #       HEARTBEAT_PRESENT
    #       MAIN_HEARTBEAT

    HEARTBEAT_PRESENT=0
    MAIN_HEARTBEAT=0

    if [[ -f $settings_config_file && $(awk -F"#" '{print $1}' $settings_config_file | sed 's/[[:space:]]//g' | grep -i "HEARTBEAT_PRESENT" | awk -F"=" '{print $2}' | wc -l) == "1" ]]; then
        HEARTBEAT_PRESENT=1
    fi

    if [[ -f $settings_config_file && $(awk -F"#" '{print $1}' $settings_config_file | sed 's/[[:space:]]//g' | grep -i "MAIN_HEARTBEAT" | awk -F"=" '{print $2}' | wc -l) == "1" ]]; then
        MAIN_HEARTBEAT=1
    fi

}

read_asterisk_version_settings()
{
    #  This function reads asterisk version
    #   Returns:
    #       ASTERISK_VERSION_C7 -
    #                  1.8 - asterisk 1.8 should be installed
    #                  15  - asterisk 15 should be installed (default on centos 7)

    ASTERISK_VERSION_C7=15

    if [ -f $settings_config_file ] && [ `awk -F"#" '{print $1}' $settings_config_file | grep "asterisk_version" | wc -l` == "1" ]; then
        ASTERISK_VERSION_C7=`awk -F"#" '{print $1}' $settings_config_file | grep asterisk_version | awk -F"=" '{print $2}'`
    fi

    return $ASTERISK_VERSION_C7
}

read_mor_ratelimit_settings()
{
    #  This fucntion reads Ratelimit settings
    #   On return set global variables
    #       ratelimit_active

    ratelimit_active=0

    if [[ -f $settings_config_file && $(awk -F"#" '{print $1}' $settings_config_file | sed 's/[[:space:]]//g' | grep -i "ratelimit_active" | awk -F"=" '{print $2}' | wc -l) == "1" ]]; then
         ratelimit_active=`awk -F"#" '{print $1}' $settings_config_file | sed 's/[[:space:]]//g' | grep -i "ratelimit_active" | awk -F"=" '{print $2}'`
    fi

}