#!/bin/sh

REPO=/var/lib/sbopkg/slackbuilds
QUEUEDIR=/var/lib/sbopkg/queues
APP=$1
TMP=deps.tmp
TMP2=deps.tmp2
CATEGORY=$(pwd | rev | cut -d'/' -f1 | rev)
QUEUE=$CATEGORY.sqf
LIST=$CATEGORY.lst
DEPS=$CATEGORY.deps
echo -n > $TMP
echo -n > $TMP2
echo -n > $DEPS

caps()
{
    res=$(echo $1 | tr [a-z] [A-Z])
}

checkinstalled()
{
    let found=0

    for p in $(ls /var/log/packages/ | grep $1)
    do
        caps $1
        newdep=$res
        caps $(echo $p | cut -d'/' -f4 | rev | cut -d- -f4- | rev)
        inst=$res

        if [ "$newdep" = "$inst" ]; then
            let found=1
            break
        fi
    done
}

getdeps()
{
    result=$(grep REQUIRES $REPO/*/$1/$1.info | cut -d'"' -f2 | sed 's/\ /\n/g')

    if [ -n "$result" ]; then
        for dep in $result
        do
            checkinstalled $dep
            
            if [ $found -eq 0 ]; then
                if [ -n "$(grep -x $CATEGORY/$dep $DEPS)" ]; then
                    sed -i "/$CATEGORY\/$dep/d" $DEPS
                fi

                if [ "$dep" = "%README%" ]; then
                    echo "README found in $1 REQUIRES"
                    echo "press enter when ready to contine"
                    read
                else
                    echo $dep | tee -a $TMP
                    echo $CATEGORY/$dep >> $DEPS
                    getdeps $dep
                fi
            fi
        done
    fi
}

for pkg in `cat $LIST | sed 's/\/$//g; s/^.*\///g'`
do
    checkinstalled $pkg

    if [ $found -eq 0 ]; then
        echo $pkg >> $TMP
        getdeps $pkg
    fi
done

if [ -r $TMP ]; then
    tac $TMP > $TMP2
    sed -n 'G; s/\n/&&/; /^\([ -~]*\n\).*\n\1/d; s/\n//; h; P' $TMP2 > $QUEUE
    rm -f $TMP $TMP2
    cp $QUEUE $QUEUEDIR
fi