#!/usr/bin/env bash
set -e
set -u
set -o pipefail

use_exif=false
args=()

while (($#)); do
	case "$1" in
		-e)
			use_exif=true
			shift
			;;
		--)
			shift
			args+=("$@")
			break
			;;
		*)
			args+=("$1")
			shift
			;;
	esac
done

if $use_exif; then
	f2 \
		-f '{strlen("{x.cdt}") > 0}' \
		-r '{x.cdt.YYYY}-{x.cdt.MM}-{x.cdt.DD} {x.cdt.H}-{x.cdt.mm}-{x.cdt.ss} {f}{ext}' \
		"${args[@]}"
else
    exec f2 -f "(\w+)[_-](\d\d\d\d)[-]?(\d\d)[-]?(\d\d)[_-](.*)" -r '$2-$3-$4 $5' "${args[@]}"
fi