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#!/bin/sh

# snapshot: Take a screenshot using ImageMagick. Assumes `dunst` daemon is
# running when sending notifications.

set -eu

SCREENSHOT_DIR="$HOME/.local/screenshots"
SCREENSHOT_NAME="$SCREENSHOT_DIR/$(date '+%F_%R-%S' | sed 's/:/-/g').png"

_end() {
  dunstify "Screenshot captured:\n$SCREENSHOT_NAME"
  display "$SCREENSHOT_NAME"
  [ -t 1 ] && echo "$SCREENSHOT_NAME"
  exit 0
}

region() {
  import "$SCREENSHOT_NAME"
  _end
}

full() {
  import -window root "$SCREENSHOT_NAME"
  _end
}

[ -d "$SCREENSHOT_DIR" ] || mkdir -p "$SCREENSHOT_DIR"

[ "$#" -eq 0 ] && region

while getopts ":f" arg; do
  case "$arg" in
    f) full ;;
    *) printf "Invalid option: -%s\n" "$OPTARG" >&2 && exit 1 ;;
  esac
done