clipdaemon

#! /usr/bin/env bash

set -eo pipefail

if test -z $COFFEE_PESTO_DIR; then
    DIR=$HOME/.coffeepesto
else
    DIR=$COFFEE_PESTO_DIR
fi

if test -z $COFFEE_PESTO_MAX_ITEMS || ! [[ $COFFEE_PESTO_MAX_ITEMS =~ ^[0-9]+$ ]]; then
    MAXITEMS=100
else
    MAXITEMS=$COFFEE_PESTO_MAX_ITEMS
fi

if test -z $COFFEE_PESTO_IGNORED_TARGETS; then
    ignored_targets="
    TARGETS TIMESTAMP SAVE_TARGETS MULTIPLE STRING UTF8_STRING TEXT COMPOUND_TEXT text/plain;charset=utf-8
    application/ico image/bmp image/ico image/icon image/jpeg image/tiff image/vnd.microsoft.icon image/x-bmp
    image/x-ico image/x-icon image/x-MS-bmp image/x-win-bitmap text/ico x-moz-url application/x-qt-image BITMAP
    image/cur image/jpg image/pbm image/pgm image/ppm image/xbm image/xpm PIXMAP
    "
else
    ignored_targets=$COFFEE_PESTO_IGNORED_TARGETS
fi

if test "$1" == "-V" || test "$1" == "--verbose"; then
    DEBUG=true
else
    DEBUG=false
fi

function nextidx {
    local i=$(ls $DIR/h 2>/dev/null | tr -d - | sort -n | tail -1)
    if test -z $i; then echo 1; else echo $((i + 1)); fi
}

function ringdelete {
    local i=$(ls $DIR/h 2>/dev/null | tr -d - | sort -n | head -1)
    if ! test -z $i; then rm -r $DIR/h/$i; fi;
}

function isblacklisted {
    test -f $DIR/blacklist && (xdotool getactivewindow getwindowname | grep -Eiq "$(cat $DIR/blacklist)")
}

function contains {
    echo $1 | grep -qE "(^| )$2( |$)"
}

function nicedate {
    date +"%a %B %d %I:%M %p %Z %Y"
}

function log {
    local logfile=$DIR/log
    if $DEBUG; then echo $(nicedate): $owner: "$@" >> $logfile; fi
}

prev_listing_dir=

while owner=$(waitforcp); do
    if test -f $DIR/pause || isblacklisted; then continue; fi
    if test -f $DIR/ourpaste; then rm $DIR/ourpaste; log ourpaste; continue; fi

    idx=$(nextidx)

    log idx is $idx

    if test $idx -gt $MAXITEMS; then
        ringdelete
        log ringdeleted...
    fi

    new_listing_dir=$DIR/h/$idx

    log new_listing_dir is $new_listing_dir

    found_a_valid_target=false
    getcp TARGETS | while read -r unsafe_target; do
        log unsafe_target is "$unsafe_target"

        if contains "$ignored_targets" "$unsafe_target"; then
            log ignored "$unsafe_target" as its "in" "$ignored_targets"
            continue
        fi

        target=$(echo "$unsafe_target" | cut -d';' -f1 | tr -cd 'a-zA-Z/-')
        if test -z $target; then
            echo "Window with id $owner is being shady with their targets :)"
            continue;
        fi;

        variant_dir=$new_listing_dir/$(echo $target | tr / '\\')
        mkdir -p $variant_dir

        log variant_dir is $variant_dir

        getcp $target > $variant_dir/data
    
        xdotool getactivewindow getwindowname > $variant_dir/index
	xdotool getactivewindow getwindowclassname >> $variant_dir/index
        nicedate >> $variant_dir/index
        test -x $DIR/custom-index && $DIR/custom-index $variant_dir
        if ! file -bi $variant_dir/data | grep -q 'charset=binary'; then
            log assuming $variant_dir as text...
            cat $variant_dir/data >> $variant_dir/index
        fi

	found_a_valid_target=true
    done

    if $found_a_valid_target && ! test -z $prev_listing_dir && diff --exclude=index -rq $new_listing_dir $prev_listing_dir 2>/dev/null | head -1 >/dev/null 2>&1; then
        log $new_listing_dir is the same copy as previous one $perv_listing_dir... deduping...
        rm -r $new_listing_dir
    fi

    prev_listing_dir=$new_listing_dir
done