if [ "$#" -ne 2 ]; then
    echo "usage episodes2mkv.sh [path to vdr recording] [path to movies]";
    exit 1;
fi

if [ ! -d "$1" ]; then
    echo "vdr recording directory not valid: $1";
    exit 1;
fi

if [ ! -d "$2" ]; then
    echo "movie directory not valid: $2";
    exit 1;
fi

echo "vdr recordings directory: $1";
echo "movie directory: $2";

echo `pwd`

readarray -t LINES < "$1/episodes.lst"

echo "lines ${#LINES[@]}";

FILE_LIST="$1/episodes.lst"
for LINE in "${LINES[@]}"; do
#while IFS= read -r LINE
#do
    echo "processing '$LINE'";
    cd "$1/$LINE";
    MOVIENAME=$(sed -n -e 's/^T \(.*\)$/\1/p' info);
    EPISODE=$(sed -n -e 's/^S \(.*\)$/\1/p' info);
    BASE_PATH="$2/$MOVIENAME/$EPISODE"
    DEST_NAME="$2/$MOVIENAME/$EPISODE.mkv"
    TRIMMED_NAME="$MOVIENAME.trimmed.ts"
    if [ ! -f "$DEST_NAME" ]; then
        echo "converting $MOVIENAME - $EPISODE";
        STAMPS=($(sed -n -e 's/^\([0-9:]\+.[0-9]\{2\}\).*$/\1/p' marks))
        if [ "${#STAMPS[@]}" -ne "2" ]; then
            echo "more than two cut marks found; skipping";
            echo "${#STAMPS[@]}";
            exit 1;
        fi;
        echo ${STAMPS[0]}
        echo ${STAMPS[1]}
        FILENAMES=$(ls *.ts | paste -sd "|" -);
#            if [ ! -d "$2/$MOVIENAME" ]; then
#                echo mkdir "$2/$MOVIENAME";
#            fi
        if [ ! -f "$TRIMMED_NAME" ]; then
            echo ffmpeg -i "concat:$FILENAMES" -ss ${STAMPS[0]} -to ${STAMPS[1]} -c:v copy -c:a copy "$TRIMMED_NAME";
            ffmpeg -nostdin -i "concat:$FILENAMES" -ss ${STAMPS[0]} -to ${STAMPS[1]} -c:v copy -c:a copy "$TRIMMED_NAME";
        fi
        echo ffmpeg -i "$TRIMMED_NAME" -c:v libx264 -c:a copy "'$EPISODE.mkv'";
        ffmpeg -nostdin -i "$TRIMMED_NAME" -c:v libx264 -c:a copy "$EPISODE.mkv";
    else
        echo "video file $DEST_NAME already exists; skipping";
    fi
    cd -;
done < "$FILE_LIST"