#!/bin/bash
# ============================================================
# WIFI ANALIZATOR nox11.pl
# Terminalowy analizator Wi-Fi
#
# Pasma:
#   2.4 GHz
#   5 GHz
#   6 GHz
#
# Wymaga:
#   iw
#
# Uruchomienie:
#   sudo ./wifianalyzer.sh
#
# Lub:
#   sudo ./wifianalyzer.sh wlan0
#
# Szerokosc pol na mapach zajetosci:
#  20 MHz = 3 pola
#  40 MHz = 5 pol
#  80 MHz = 9 pol
#
# Uwagi: im dBm bliżej 0, tym silniejszy sygnał."
# ============================================================

RESET='\033[0m'
GREEN='\033[32m'
BRIGHTGREEN='\033[1;32m'

IFACE="${1:-}"

RAW=$(mktemp)
AP_FILE=$(mktemp)

cleanup()
{
    rm -f "$RAW" "$AP_FILE"
    printf "${RESET}"
    exit 0
}

trap cleanup INT TERM


# ============================================================
# INTERFEJS
# ============================================================

if [ -z "$IFACE" ]; then

    IFACE=$(iw dev 2>/dev/null | awk '
        $1 == "Interface" {
            print $2
            exit
        }
    ')

fi

if [ -z "$IFACE" ]; then
    echo "Nie znaleziono interfejsu Wi-Fi."
    iw dev
    exit 1
fi


if [ "$EUID" -ne 0 ]; then
    echo "Uruchom jako root:"
    echo
    echo "sudo $0 $IFACE"
    exit 1
fi


if ! iw dev "$IFACE" info >/dev/null 2>&1; then
    echo "Nieprawidlowy interfejs: $IFACE"
    exit 1
fi


# ============================================================
# CZESTOTLIWOSC 2.4 GHz
# ============================================================

freq_24()
{
    local CH="$1"

    if [ "$CH" -ge 1 ] && [ "$CH" -le 13 ]; then
        echo $((2407 + CH * 5))
    elif [ "$CH" -eq 14 ]; then
        echo 2484
    else
        echo 0
    fi
}


# ============================================================
# PASMO
# ============================================================

pasmo()
{
    local FREQ="$1"

    if [ "$FREQ" -ge 2400 ] && [ "$FREQ" -lt 2500 ]; then
        echo "2.4 GHz"
    elif [ "$FREQ" -ge 4900 ] && [ "$FREQ" -lt 5925 ]; then
        echo "5 GHz"
    elif [ "$FREQ" -ge 5925 ] && [ "$FREQ" -le 7125 ]; then
        echo "6 GHz"
    else
        echo "-"
    fi
}


# ============================================================
# PASEK SYGNALU
# ============================================================

pasek_sygnalu()
{
    local SIGNAL="$1"
    local MAX_WIDTH=21
    local COUNT

    COUNT=$(( (SIGNAL + 90) * MAX_WIDTH / 60 ))

    [ "$COUNT" -lt 0 ] && COUNT=0
    [ "$COUNT" -gt "$MAX_WIDTH" ] && COUNT="$MAX_WIDTH"

    printf "${BRIGHTGREEN}"

    printf '%*s' "$COUNT" '' | tr ' ' '#'

    printf "${RESET}"
}


# ============================================================
# PARSOWANIE SKANU
#
# BSSID|FREQ|CHANNEL|SIGNAL|WIDTH|CENTER|START|END|SSID
# ============================================================

parsuj_skan()
{

    awk '

    function wyjscie()
    {
        if (bssid == "" || freq == "" || signal == "")
            return

        f = int(freq)

        if (channel == "") {

            if (f >= 2412 && f <= 2472)
                channel = int((f - 2407) / 5)

            else if (f == 2484)
                channel = 14

            else if (f >= 5000 && f < 5925)
                channel = int((f - 5000) / 5)

            else if (f >= 5925 && f <= 7125)
                channel = int((f - 5950) / 5)

            else
                channel = "-"
        }


        if (width == "")
            width = 20


        center = f

        if (center1 != "") {

            c = int(center1)

            if (f >= 5000 && f <= 7125)
                center = 5000 + c * 5
        }


        half = width / 2

        start = center - half
        end = center + half


        if (ssid == "")
            ssid = ""


        printf "%s|%s|%s|%s|%s|%s|%s|%s|%s\n",
            bssid,
            f,
            channel,
            signal,
            width,
            center,
            start,
            end,
            ssid
    }


    /^BSS / {

        wyjscie()

        bssid = $2
        sub(/\(.*/, "", bssid)

        freq = ""
        channel = ""
        signal = ""
        width = 20
        center1 = ""
        ssid = ""

        next
    }


    /^[[:space:]]*freq:/ {

        freq = $2
        next
    }


    /^[[:space:]]*signal:/ {

        signal = $2
        gsub(/dBm/, "", signal)
        signal = int(signal)

        next
    }


    /^[[:space:]]*SSID:/ {

        ssid = $0
        sub(/^[[:space:]]*SSID:[[:space:]]*/, "", ssid)

        next
    }


    /^[[:space:]]*DS Parameter set: channel/ {

        channel = $NF
        next
    }


    /^[[:space:]]*primary channel:/ {

        channel = $NF
        next
    }


    /secondary channel offset:/ {

        if ($NF == "above" || $NF == "below")
            width = 40

        next
    }


    /channel width:/ {

        if ($NF == "1")
            width = 80

        else if ($NF == "2")
            width = 160

        next
    }


    /center freq segment 1:/ {

        center1 = $NF
        next
    }


    END {
        wyjscie()
    }

    ' "$RAW" > "$AP_FILE"

}


# ============================================================
# KOLOROWANIE MAPY
# ============================================================

koloruj_mape()
{
    local LINE="$1"

    while [[ "$LINE" == *"[###]"* ]]; do

        local BEFORE="${LINE%%\[###\]*}"
        local AFTER="${LINE#*\[###\]}"

        printf "%s${BRIGHTGREEN}[###]${RESET}" "$BEFORE"

        LINE="$AFTER"

    done

    printf "%s\n" "$LINE"
}


# ============================================================
# MAPA 2.4 GHz
# ============================================================

mapa_24()
{
    echo

    printf "${BRIGHTGREEN}MAPA ZAJETOSCI 2.4 GHz${RESET}\n"

    echo "----------------------------------------------------------------------"

    echo


    # --------------------------------------------------------
    # NUMERY KANALOW
    # --------------------------------------------------------

    printf "%19s" ""

    for CH in {1..13}; do

        if [ "$CH" -lt 10 ]; then
            printf "  %s  " "$CH"
        else
            printf " %s  " "$CH"
        fi

    done

    echo


    # --------------------------------------------------------
    # CZESTOTLIWOSCI
    # --------------------------------------------------------

    printf "%19s" ""

    for CH in {1..13}; do

        FREQ=$(freq_24 "$CH")

        printf "%5s" "$FREQ"

    done

    echo


    # --------------------------------------------------------
    # OS MAPY
    # --------------------------------------------------------

    printf "%19s" ""

    for CH in {1..13}; do

        printf "|---|"

    done

    echo


    # --------------------------------------------------------
    # SIECI
    # --------------------------------------------------------

    awk -F'|' '

    $2 >= 2400 && $2 < 2500 {

        name=$9

        if (length(name) > 18)
            name=substr(name,1,15) "..."


        printf "%-18s ", name


        channel=$3
        width=$5


        # ----------------------------------------------------
        # 20 MHz = 3 pola
        # 40 MHz = 5 pol
        # 80 MHz = 9 pol
        # ----------------------------------------------------

        fields=int(width/10)

        if (fields < 3)
            fields=3

        if (fields % 2 == 0)
            fields++


        half=int(fields/2)


        # ----------------------------------------------------
        # MAPA
        # ----------------------------------------------------

        for (ch=1; ch<=13; ch++) {

            distance=ch-channel


            if (distance >= -half && distance <= half)
                printf "[###]"

            else
                printf "     "
        }


        printf "  CH%s  %sdBm  %sMHz\n",
            $3,
            $4,
            $5
    }

    ' "$AP_FILE" |
    while IFS= read -r LINE; do

        koloruj_mape "$LINE"

    done


    echo


    echo
}


# ============================================================
# KANALY 5 GHz
# ============================================================

CHANNELS5="36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 144 149 153 157 161 165"


# ============================================================
# MAPA 5 GHz
# ============================================================

mapa_5()
{
    echo

    printf "${BRIGHTGREEN}MAPA ZAJETOSCI 5 GHz${RESET}\n"

    echo "----------------------------------------------------------------------"
    echo


    printf "       "

    for CH in $CHANNELS5; do
        printf " %3s " "$CH"
    done

    echo


    printf "       "

    for CH in $CHANNELS5; do
        FREQ=$((5000 + CH * 5))
        printf "%5s" "$FREQ"
    done

    echo


    printf "       "

    for CH in $CHANNELS5; do
        printf "|----"
    done

    echo "|"


    awk -F'|' -v channels="$CHANNELS5" '

    BEGIN {
        split(channels, ch, " ")
    }


    $2 >= 4900 && $2 < 5925 {

        name=$9

        if (length(name) > 18)
            name=substr(name,1,15) "..."


        printf "%-18s ", name


        for (i=1; i<=25; i++) {

            cf=5000 + ch[i]*5

            if (cf > $7 && cf < $8)
                printf "[###]"

            else
                printf "     "
        }


        printf "  CH%s  %sdBm  %sMHz\n",
            $3,
            $4,
            $5
    }

    ' "$AP_FILE" |
    while IFS= read -r LINE; do
        koloruj_mape "$LINE"
    done

    echo
}


# ============================================================
# KANALY 6 GHz
# ============================================================

CHANNELS6="1 5 9 13 17 21 25 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 101 105 109 113 117 121 125 129 133 137 141 145 149 153 157 161 165 169 173 177 181 185 189 193 197 201 205 209 213 217 221 225 229 233"


freq_6()
{
    local CH="$1"

    echo $((5950 + CH * 5))
}


# ============================================================
# OCENA
# ============================================================

ocena()
{
    local SCORE="$1"

    if [ "$SCORE" -eq 0 ]; then
        echo "WOLNY"

    elif [ "$SCORE" -lt 30 ]; then
        echo "BARDZO DOBRY"

    elif [ "$SCORE" -lt 70 ]; then
        echo "DOBRY"

    elif [ "$SCORE" -lt 120 ]; then
        echo "ZAJETY"

    else
        echo "BARDZO ZAJETY"
    fi
}


# ============================================================
# OCENA KANALU 2.4 GHz
# ============================================================

score_24()
{
    local CH="$1"

    local CENTER

    CENTER=$(freq_24 "$CH")

    local START=$((CENTER - 10))
    local END=$((CENTER + 10))


    awk -F'|' -v start="$START" -v end="$END" '

    $2 >= 2400 && $2 < 2500 {

        overlap_start=(start > $7 ? start : $7)
        overlap_end=(end < $8 ? end : $8)

        overlap=overlap_end-overlap_start


        if (overlap > 0) {

            factor=100+$4

            if (factor < 1)
                factor=1

            score+=(overlap/5)*factor
        }
    }


    END {
        printf "%.0f\n", score+0
    }

    ' "$AP_FILE"
}


# ============================================================
# OCENA KANALOW 2.4 GHz
# ============================================================

ocena_24()
{
    echo

    printf "${BRIGHTGREEN}OCENA KANALOW 2.4 GHz${RESET}\n"

    echo "----------------------------------------------------------------------"


    SCORE1=$(score_24 1)
    SCORE6=$(score_24 6)
    SCORE11=$(score_24 11)


    BEST=1
    BEST_SCORE="$SCORE1"


    if [ "$SCORE6" -lt "$BEST_SCORE" ]; then
        BEST=6
        BEST_SCORE="$SCORE6"
    fi


    if [ "$SCORE11" -lt "$BEST_SCORE" ]; then
        BEST=11
        BEST_SCORE="$SCORE11"
    fi


    OCENA1=$(ocena "$SCORE1")
    OCENA6=$(ocena "$SCORE6")
    OCENA11=$(ocena "$SCORE11")


    printf "Kanal 1  : %-4s pkt  " "$SCORE1"

    if [ "$OCENA1" = "DOBRY" ] || [ "$OCENA1" = "BARDZO DOBRY" ] || [ "$OCENA1" = "WOLNY" ]; then
        printf "${BRIGHTGREEN}%s${RESET}\n" "$OCENA1"
    else
        printf "%s\n" "$OCENA1"
    fi


    printf "Kanal 6  : %-4s pkt  " "$SCORE6"

    if [ "$OCENA6" = "DOBRY" ] || [ "$OCENA6" = "BARDZO DOBRY" ] || [ "$OCENA6" = "WOLNY" ]; then
        printf "${BRIGHTGREEN}%s${RESET}\n" "$OCENA6"
    else
        printf "%s\n" "$OCENA6"
    fi


    printf "Kanal 11 : %-4s pkt  " "$SCORE11"

    if [ "$OCENA11" = "DOBRY" ] || [ "$OCENA11" = "BARDZO DOBRY" ] || [ "$OCENA11" = "WOLNY" ]; then
        printf "${BRIGHTGREEN}%s${RESET}\n" "$OCENA11"
    else
        printf "%s\n" "$OCENA11"
    fi


    echo

    printf "${BRIGHTGREEN}>>> ZALECANY KANAL: %s${RESET}\n" "$BEST"

    printf "    Czestotliwosc: ${BRIGHTGREEN}%s MHz${RESET}\n" \
        "$(freq_24 "$BEST")"

    echo
    echo "    Najmniejsze obciazenie wykrytych sieci."

    echo
}


# ============================================================
# OCENA KANALOW 5 / 6 GHz
# ============================================================

score_channel()
{
    local CENTER="$1"

    local START=$((CENTER - 10))
    local END=$((CENTER + 10))


    awk -F'|' -v start="$START" -v end="$END" '

    {

        overlap_start=(start > $7 ? start : $7)
        overlap_end=(end < $8 ? end : $8)

        overlap=overlap_end-overlap_start


        if (overlap > 0) {

            factor=100+$4

            if (factor < 1)
                factor=1

            score+=(overlap/5)*factor
        }
    }


    END {
        printf "%.0f\n", score+0
    }

    ' "$AP_FILE"
}


# ============================================================
# OCENA 5 GHz
# ============================================================

ocena_5()
{
    echo

    printf "${BRIGHTGREEN}OCENA KANALOW 5 GHz${RESET}\n"

    echo "----------------------------------------------------------------------"


    BEST=""
    BEST_SCORE=999999


    for CH in $CHANNELS5; do

        FREQ=$((5000 + CH * 5))

        SCORE=$(score_channel "$FREQ")


        if [ "$SCORE" -lt "$BEST_SCORE" ]; then

            BEST_SCORE="$SCORE"
            BEST="$CH"

        fi

    done


    for CH in $CHANNELS5; do

        FREQ=$((5000 + CH * 5))

        SCORE=$(score_channel "$FREQ")

        STATUS=$(ocena "$SCORE")


        printf "Kanal %-3s: %-4s pkt  " "$CH" "$SCORE"


        if [ "$CH" = "$BEST" ]; then

            printf "${BRIGHTGREEN}%s${RESET}\n" "$STATUS"

        elif [ "$STATUS" = "DOBRY" ] || \
             [ "$STATUS" = "BARDZO DOBRY" ] || \
             [ "$STATUS" = "WOLNY" ]; then

            printf "${BRIGHTGREEN}%s${RESET}\n" "$STATUS"

        else

            printf "%s\n" "$STATUS"

        fi

    done


    echo

    printf "${BRIGHTGREEN}>>> ZALECANY KANAL 5 GHz: %s${RESET}\n" "$BEST"

    printf "    Czestotliwosc: ${BRIGHTGREEN}%s MHz${RESET}\n" \
        "$((5000 + BEST * 5))"

    echo

    echo "    Najmniejsze obciazenie wykrytych sieci."

    echo
}


# ============================================================
# OCENA 6 GHz
# ============================================================

ocena_6()
{
    echo

    printf "${BRIGHTGREEN}OCENA KANALOW 6 GHz${RESET}\n"

    echo "----------------------------------------------------------------------"


    BEST=""
    BEST_SCORE=999999


    for CH in $CHANNELS6; do

        FREQ=$(freq_6 "$CH")

        SCORE=$(score_channel "$FREQ")


        if [ "$SCORE" -lt "$BEST_SCORE" ]; then

            BEST_SCORE="$SCORE"
            BEST="$CH"

        fi

    done


    for CH in $CHANNELS6; do

        FREQ=$(freq_6 "$CH")

        SCORE=$(score_channel "$FREQ")

        STATUS=$(ocena "$SCORE")


        printf "Kanal %-3s: %-4s pkt  " "$CH" "$SCORE"


        if [ "$CH" = "$BEST" ]; then

            printf "${BRIGHTGREEN}%s${RESET}\n" "$STATUS"

        elif [ "$STATUS" = "DOBRY" ] || \
             [ "$STATUS" = "BARDZO DOBRY" ] || \
             [ "$STATUS" = "WOLNY" ]; then

            printf "${BRIGHTGREEN}%s${RESET}\n" "$STATUS"

        else

            printf "%s\n" "$STATUS"

        fi

    done


    echo

    printf "${BRIGHTGREEN}>>> ZALECANY KANAL 6 GHz: %s${RESET}\n" "$BEST"

    printf "    Czestotliwosc: ${BRIGHTGREEN}%s MHz${RESET}\n" \
        "$(freq_6 "$BEST")"

    echo

    echo "    Najmniejsze obciazenie wykrytych sieci."

    echo
}


# ============================================================
# WYKRYTE SIECI - KONKRETNE PASMO
# ============================================================

sieci_pasma()
{
    local BAND="$1"

    printf "${BRIGHTGREEN}WYKRYTE SIECI %s${RESET}\n" "$BAND"

    echo "----------------------------------------------------------------------"

    printf "%-18s %-6s %-10s %-10s %s\n" \
        "BSSID" \
        "KANAL" \
        "SYGNAL" \
        "SZEROKOSC" \
        "SSID"

    echo "----------------------------------------------------------------------"


    case "$BAND" in

        "2.4 GHz")

            FILTER='$2 >= 2400 && $2 < 2500'

            ;;

        "5 GHz")

            FILTER='$2 >= 4900 && $2 < 5925'

            ;;

        "6 GHz")

            FILTER='$2 >= 5925 && $2 <= 7125'

            ;;

    esac


    awk -F'|' "$FILTER {
        print
    }" "$AP_FILE" |
    sort -t'|' -k3,3n -k4,4nr |
    while IFS='|' read BSSID FREQ CH SIGNAL WIDTH CENTER START END SSID; do

        printf "%-18s %-6s %-10s %-10s %s\n" \
            "$BSSID" \
            "$CH" \
            "${SIGNAL} dBm" \
            "${WIDTH} MHz" \
            "$SSID"

    done


    echo
}


# ============================================================
# STATYSTYKA
# ============================================================

statystyka()
{
    TOTAL=$(wc -l < "$AP_FILE")


    BAND24=$(awk -F'|' '
        $2 >= 2400 && $2 < 2500 { n++ }
        END { print n+0 }
    ' "$AP_FILE")


    BAND5=$(awk -F'|' '
        $2 >= 4900 && $2 < 5925 { n++ }
        END { print n+0 }
    ' "$AP_FILE")


    BAND6=$(awk -F'|' '
        $2 >= 5925 && $2 <= 7125 { n++ }
        END { print n+0 }
    ' "$AP_FILE")


    printf "${BRIGHTGREEN}STATYSTYKA${RESET}\n"

    echo "----------------------------------------------------------------------"

    printf "Wykryte AP   : %s\n" "$TOTAL"
    printf "2.4 GHz      : %s\n" "$BAND24"
    printf "5 GHz        : %s\n" "$BAND5"
    printf "6 GHz        : %s\n" "$BAND6"

    echo
}


# ============================================================
# SKANOWANIE
# ============================================================

skanuj()
{
    RAW=$(mktemp)
    AP_FILE=$(mktemp)


    iw dev "$IFACE" scan 2>/dev/null > "$RAW"


    if [ ! -s "$RAW" ]; then

        clear

        printf "${BRIGHTGREEN}======================================================================${RESET}\n"
        printf "${BRIGHTGREEN}                         WIFI ANALIZATOR nox11.pl${RESET}\n"
        printf "${BRIGHTGREEN}======================================================================${RESET}\n"

        echo

        echo "Nie udalo sie wykonac skanowania."

        echo

        echo "Sprawdz:"
        echo
        echo "  rfkill list"
        echo "  ip link show $IFACE"

        echo

        echo "Jesli Wi-Fi jest zablokowane:"
        echo
        echo "  sudo rfkill unblock wifi"

        echo

        rm -f "$RAW" "$AP_FILE"

        sleep 5

        return

    fi


    parsuj_skan


    # ========================================================
    # EKRAN
    # ========================================================

    clear

    echo

    printf "${BRIGHTGREEN}======================================================================${RESET}\n"
    printf "${BRIGHTGREEN}                         WIFI ANALIZATOR nox11.pl${RESET}\n"
    printf "${BRIGHTGREEN}======================================================================${RESET}\n"

    printf " Interfejs: ${BRIGHTGREEN}%s${RESET}\n" "$IFACE"

    printf "${BRIGHTGREEN}======================================================================${RESET}\n"


    echo

    # ========================================================
    # 2.4 GHz
    # ========================================================

    printf "${BRIGHTGREEN}2.4 GHz${RESET}\n"

    echo "----------------------------------------------------------------------"

    printf "%-7s %-5s %-10s %-10s %s\n" \
        "KANAL" \
        "AP" \
        "SYGNAL" \
        "SZEROKOSC" \
        "ZAJETOSC"

    echo "----------------------------------------------------------------------"


    for CH in {1..13}; do

        LINE=$(awk -F'|' -v ch="$CH" '

        $3 == ch && $2 >= 2400 && $2 < 2500 {

            count++

            if (max == "" || $4 > max)
                max=$4

            w=$5
        }

        END {

            if (count > 0)
                printf "%d %d %d", count, max, w

            else
                printf "0 0 0"
        }

        ' "$AP_FILE")


        AP=$(echo "$LINE" | awk '{print $1}')
        MAX=$(echo "$LINE" | awk '{print $2}')
        WIDTH=$(echo "$LINE" | awk '{print $3}')


        if [ "$AP" -eq 0 ]; then

            printf "%-7s %-5s %-10s %-10s\n" \
                "$CH" "-" "-" "-"

        else

            printf "%-7s %-5s %-10s %-10s " \
                "$CH" \
                "$AP" \
                "${MAX} dBm" \
                "${WIDTH} MHz"

            pasek_sygnalu "$MAX"

            echo

        fi

    done


    mapa_24


    # ========================================================
    # 5 GHz
    # ========================================================

    printf "${BRIGHTGREEN}5 GHz${RESET}\n"

    echo "----------------------------------------------------------------------"

    printf "%-7s %-5s %-10s %-10s %s\n" \
        "KANAL" \
        "AP" \
        "SYGNAL" \
        "SZEROKOSC" \
        "ZAJETOSC"

    echo "----------------------------------------------------------------------"


    awk -F'|' '

    $2 >= 4900 && $2 < 5925 {

        count[$3]++

        if (!($3 in max) || $4 > max[$3])
            max[$3]=$4

        width[$3]=$5
    }

    END {

        for (ch in count)

            printf "%s %d %d %d\n",
                ch,
                count[ch],
                max[ch],
                width[ch]
    }

    ' "$AP_FILE" |
    sort -n |
    while read CH AP MAX WIDTH; do

        printf "%-7s %-5s %-10s %-10s " \
            "$CH" \
            "$AP" \
            "${MAX} dBm" \
            "${WIDTH} MHz"

        pasek_sygnalu "$MAX"

        echo

    done


    mapa_5


    # ========================================================
    # 6 GHz
    # ========================================================

    printf "${BRIGHTGREEN}6 GHz${RESET}\n"

    echo "----------------------------------------------------------------------"

    printf "%-7s %-5s %-10s %-10s %s\n" \
        "KANAL" \
        "AP" \
        "SYGNAL" \
        "SZEROKOSC" \
        "ZAJETOSC"

    echo "----------------------------------------------------------------------"


    awk -F'|' '

    $2 >= 5925 && $2 <= 7125 {

        count[$3]++

        if (!($3 in max) || $4 > max[$3])
            max[$3]=$4

        width[$3]=$5
    }

    END {

        for (ch in count)

            printf "%s %d %d %d\n",
                ch,
                count[ch],
                max[ch],
                width[ch]
    }

    ' "$AP_FILE" |
    sort -n |
    while read CH AP MAX WIDTH; do

        printf "%-7s %-5s %-10s %-10s " \
            "$CH" \
            "$AP" \
            "${MAX} dBm" \
            "${WIDTH} MHz"

        pasek_sygnalu "$MAX"

        echo

    done


    printf "\n"


    # ========================================================
    # LISTY SIECI
    # ========================================================

    sieci_pasma "2.4 GHz"
    sieci_pasma "5 GHz"
    sieci_pasma "6 GHz"


    # ========================================================
    # OCENY
    # ========================================================

    ocena_24
    ocena_5
    ocena_6


    # ========================================================
    # STATYSTYKA
    # ========================================================

    statystyka


    echo "----------------------------------------------------------------------"

    printf "Odswiezanie za ${BRIGHTGREEN}5 sekund${RESET}... Ctrl+C = wyjscie\n"


    rm -f "$RAW" "$AP_FILE"

}


# ============================================================
# PETLA
# ============================================================

while true; do

    skanuj
    sleep 5

done