#!/usr/bin/env bash
# This is an attempt to replace xdg-open with something sane.

declare -A uri_handlers
declare -A mime_handlers

# Source the config file.
cfg_file="$HOME/.config/sx-open.cfg"
cfg_uri_regex='^[A-Za-z]([A-Za-z0-9+.-]+)?://.+'
[[ -f "$cfg_file" ]] && { source "$cfg_file"; }

usage() { echo "${0##*/} <uri/file>"; }

handle_uri() {
	local target="$1"

	for h in "${!uri_handlers[@]}"; do
		[[ "$target" =~ ${uri_handlers[${h}]} ]] && {
			${h} "$target" &
			return 0
		}
	done

	return 1
}

handle_mime() {
	target_mimetype=$(file -ib "$target")

	for m in "${!mime_handlers[@]}"; do
		[[ "$target_mimetype" =~ ${mime_handlers[${m}]} ]] && {
			${m} "$target" &
			return 0
		}
	done

	return 1
}

main() {
	target="$1"
	[[ "$target" ]] || { usage; exit; }

	if [[ "$target" =~ ${cfg_uri_regex} ]]; then
		handle_uri "$target"
	elif [[ -e "$target" ]]; then
		[[ "$target" =~ ^/.* ]] || { target="${PWD}/${target}"; }

		handle_uri "file://${target}" || {
			handle_mime "$target"
		}
	else
		echo "$target is not a uri nor is it an existing file. Bailing."
		return 1
	fi

	[[ "$?" -gt 0 ]] && { echo "No handlers found for $target";	}

	return 0
}

main "$@"