#!/usr/bin/env sh

# Description: Fuzzy find and execute nnn plugins (and optionally,
#              custom scripts located elsewhere).
#              Description and details of plugins can be previewed
#              from the fzf interface. Use `?` to toggle preview
#              pane on and off, ^Up/^Dn to scroll.
#
# Dependencies: find, fzf, cat (or bat, if installed)
#
# Note: For better compatibility with as many nnn plugins as possible,
#       fzplug will first execute the chosen script on the file hovered
#       in nnn, and upon failure, try to run it with no target (i.e on
#       an active selection, if present).
#
# Shell: POSIX compliant
# Author: Kabouik

# Optional scripts sources

# Leave blank or fill with the absolute path of a folder containing executable
# scripts other than nnn plugins (e.g., "$HOME/.local/share/nautilus/scripts",
# since there are numerous Nautilus script git repositories).
# Add extra variables if needed, make sure you call them in the find command.

#CUSTOMDIR1="$HOME/.local/share/nautilus/scripts"
CUSTOMDIR1=""
CUSTOMDIR2=""

nnnpluginsdir="$HOME/.config/nnn/plugins"

# Preview with bat if installed
if type bat >/dev/null; then
    BAT="bat --terminal-width='$(tput cols)' --decorations=always --color=always --style='${BAT_STYLE:-header,numbers}'"
fi

plugin=$(find -L "$nnnpluginsdir" "$CUSTOMDIR1" "$CUSTOMDIR2" \
-maxdepth 3 -perm -111 -type f 2>/dev/null | fzf --ansi --preview \
    "${BAT:-cat} {}" --preview-window="right:66%:wrap" --delimiter / \
    --with-nth -1 --bind="?:toggle-preview")

# Try running the script on the hovered file, and abort
# abort if no plugin was selected (ESC or ^C pressed).
err=0
if ! [ "$plugin" = "" ]; then
    "$plugin" "$1" || err=1
fi

# If attempt with hovered file fails, try without any target
# (nnn selections should still be passed to the script in that case)
if [ "$err" -eq "1" ]; then
    clear && "$plugin" || err=2
fi

# Abort and show error if both fail
if [ "$err" -eq "2" ]; then
    sep="\n---\n"
    printf "$sep""Failed to execute '%s'. See error above or try without fzfplug. Press return to continue. " "$plugin" && read -r _ && clear
fi
