#!/bin/bash
OrderCards() {
Abase="/etc/modprobe.d/alsa-base.conf"
AudioRules="/etc/udev/rules.d/85-linuxmce-audio.rules"
CardOrder=$(cat /proc/asound/modules | awk '{print $2}')
CardModules=$(uniq <<< "$CardOrder")
NumberCardMods=$(echo "$CardModules" | while read each; do
    echo "$each $(grep "$each" /proc/asound/modules | wc -l)" | sed 's/_/-/g'
done)
CardModules=$(sed 's/_/-/g' <<< "$CardModules")
CurrentAconfig=$(grep "LinuxMCE" -A20 "$Abase" | grep -v "LinuxMCE" | awk '{print $2}')

if [[ -n "$CurrentAconfig" ]]; then
    # If our module load order does not match our loaded modules, start section fresh.
    if [[ "$CardModules" != "$CurrentAconfig" ]] || [[ $(awk '{print $2}' <<< "$NumberCardMods" | paste -sd+ | bc) -ne $(wc -l <<< "$CardOrder") ]]; then
        sed -i '/.*Added.*LinuxMCE.*/,/.*End.*LinuxMCE.*/d' "$Abase"
        echo "### Added module load order by LinuxMCE ###" >> "$Abase"
    else
        # If they match, leave... our work is done.
        return
    fi
else
    echo "" >> "$Abase"
    echo "### Added module load order by LinuxMCE ###" >> "$Abase"
fi

local ModOrder=$(grep -E "(.*index=[0-9]|.*index=[0-9][0-9])" "$Abase" | sed 's/.*,//g' | sort -n | tail -1)
if [[ -z "$ModOrder" ]]; then
    ModOrder=0
else
    # Incriment existing highest module order number
    ((ModOrder++))
fi

echo "$NumberCardMods" | awk '{print $1}' | while read EachModule; do
    Acurrent="options ${EachModule} index"
    if [[ -n "$Acurrent" ]]; then
        sed -i "/${Acurrent}=-2*/d;/.*index=${ModOrder}/d" "$Abase"
    fi

    if ! grep -q "${Acurrent}" "$Abase"; then
        EachModuleNumber=$(grep "$EachModule" <<< "$NumberCardMods" | awk '{print $2}')

        if [[ "$EachModuleNumber" -gt "1" ]]; then
            ((EachModuleNumber--))
            ModMax=$(($ModOrder+$EachModuleNumber))
            for ((i="$ModOrder"; i<="$ModMax"; i++)); do
                str="$str$i,"
            done < <(grep PATH /etc/profile)
            ModNumber="${str%,}"
            echo "${Acurrent}=${ModNumber}" >> "$Abase"
            ModOrder=$(sed 's/^.*\(.\)$/\1/' <<< "$ModNumber")
            ((ModOrder++))
        else
            echo "${Acurrent}=${ModOrder}" >> "$Abase"
            ((ModOrder++))
        fi
    fi
done
echo "### End add by LinuxMCE ###" >> "$Abase"

if [[ -f "$AudioRules" ]]; then
    rm "$AudioRules"
fi

/usr/pluto/bin/RestartALSA.sh
CardNumbers=$(cat /proc/asound/modules | awk '{print $1}')
cat <<EOL> "$AudioRules"
SUBSYSTEM!="sound", GOTO="linuxmce_audio_end"
ACTION!="add", GOTO="linuxmce_audio_end"

EOL

echo "$CardNumbers" | while read each; do
DevPath=$(udevadm info -a -p /sys/class/sound/card${each} | grep -wo "/devices.*card${each}")
echo "DEVPATH==\"${DevPath}\", KERNEL=\"card${each}\"" >> "$AudioRules"
done

cat <<EOL>> "$AudioRules"

LABEL="linuxmce_audio_end"
EOL
}

OrderCards
if [[ "$CardModules" != "$CurrentAconfig" ]] || [[ $(awk '{print $2}' <<< "$NumberCardMods" | paste -sd+ | bc) -ne $(wc -l <<< "$CardOrder") ]]; then
    OrderCards
fi