#! /bin/sh

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

. /usr/src/m2/framework/bash_functions.sh

settings_config_file="/etc/m2/system.conf"

M2_CRONS_FOR_ALL_SERVERS="m2_date_limit_report  m2_system_stats_report m2_keep_server_loadstats_alive"
M2_CRONS_FOR_MAIN_DB="m2_fraud_protection m2_active_calls_data m2_background_tasks m2_delete_old_calls m2_delete_old_rates m2_invoices m2_remove_temporary_tables m2_rates_effective_from_cache_control"
M2_CRONS_FOR_GUI="m2_daily_actions m2_hourly_actions m2_monthly_actions m2_minute_actions m2_invoices_report"
M2_CRONS_FOR_ES="keep_elasticsearch_alive m2_check_elasticsearch_status m2_elasticsearch_restart m2_es_sync_control"
M2_CRONS_FOR_FS="m2_terminator_check"
M2_CRONS_FOR_RADIUS="core_failed_queries_import"

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`
    else
        mkdir -p /etc/m2
        get_answer "MySQL binlog setting is not present on this server. Should MySQL binlog be enabled on this server (Should be enabled if you are going to build MySQL replication or client modifies his DB himself)?" "y"

        if [ "$answer" == "y" ]; then
            echo "BINLOG=1" >> $settings_config_file
            BINLOG_SETTING=1
        else
            echo "BINLOG=0" >> $settings_config_file
            BINLOG_SETTING=0
        fi
    fi
    return $BINLOG_SETTING
}

read_mor_replication_settings()
{
    #   Author: Mindaugas Mardosas, Nerijus Sapola
    #   Year:   2012
    #   About:  This function reads replication settings
    #
    #   Reads:
    #       REPLICATION_M - {0 - disabled; 1 - enabled}
    #       REPLICATION_S - {0 - disabled; 1 - enabled}
    #   Returns:
    #       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}'`
    elif [ -f $settings_config_file ] && [ `awk -F"#" '{print \$1}' $settings_config_file | grep "REPLICATION_M\|REPLICATION_S" | wc -l` == "0" ]; then
    # asking user for correct configuration
        mkdir -p /etc/m2
        get_answer "Is this server participating in DB replication?" "n"

        if [ "$answer" == "y" ]; then
            get_answer "Is it Master<>Master replication" "y"
            if [ "$answer" == "y" ]; then
                REPLICATION_M=1
                REPLICATION_S=1
                echo -e "REPLICATION_M=1\nREPLICATION_S=1" >> $settings_config_file
            else
                get_answer "Is it Master server" "y"
                if [ "$answer" == "y" ]; then
                    REPLICATION_M=1
                    REPLICATION_S=0
                    echo -e "REPLICATION_M=1\nREPLICATION_S=0" >> $settings_config_file
                else
                    echo "According previous answers this server is Slave"
                    REPLICATION_M=0
                    REPLICATION_S=1
                    echo -e "REPLICATION_M=0\nREPLICATION_S=1" >> $settings_config_file
                fi
            fi
        else
            REPLICATION_M=0
            REPLICATION_S=0
            echo -e "REPLICATION_M=0\nREPLICATION_S=0" >> $settings_config_file
        fi
    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}

    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}'`
    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}

    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}'`
    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_m2_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=""

    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
}


# wrapper to kf
read_m2_settings() {
    k_config_details
}