clipmenu

#!/bin/bash
history_dir="${XDG_CACHE_HOME:-$HOME/.cache}/clipboard_history/"
default_string="UTF8_STRING"
preview_length=100

log()
{
    printf "%s\n" "$1" | xargs
}

if [ -d "$history_dir" ]; then
    history_content=$(ls "$history_dir" -t)
else
    log "History directory does not exist. Did you start clipmanager?"
    exit 1
fi

lines_to_select=()
file_names=()

dep_ck()
{
    for pr; do
        if ! command -v "$pr" >/dev/null 2>&1; then
            log "command $pr not found, install $pr"
            exit 1
        fi
    done
}
dep_ck "xclip" "dmenu"

# checks if -p is set if so set $p to p 
getopts p paste

# check if directory exists and is not empty
if [ -n "$history_content" ]; then
    # create a preview for copied content
    for entry in $history_content; do
        read -r -N $preview_length preview < "$history_dir$entry"
        preview=$(echo "$preview" | tr '\n' ' ')
        line_count=$(grep -c "" "$history_dir$entry")
        [ "$line_count" -gt 1 ] && preview+="<$line_count lines>"
        lines_to_select+=("$preview")
        file_names+=("$entry")
    done

    # using dmenu for the selection
    selected=$(printf "%s\n" "${lines_to_select[@]}" | dmenu -l 10)
    dmenu_exit=$?
    [ "$dmenu_exit" -ne 0 ] && exit 1

    # copy selected content to clipboard
    for i in ${!lines_to_select[*]}; do
        if [ "${lines_to_select[i]}" = "$selected" ]; then
            xclip -selection clipboard -t "$default_string" < "$history_dir/${file_names[i]}"
            if [ $paste == 'p' ]
            then
                i=$(xclip -selection clipboard -o)
                xdotool type "$i"
            fi
        fi
    done
else
    log "History is empty"
    exit 1
fi