import "package:flutter/material.dart";
import "package:flutter/services.dart";
import "package:intl/intl.dart";

/// One path for all replies so the Re: rule lives once.
String replySubject(String subject) =>
    subject.isEmpty || subject.startsWith("Re:") ? subject : "Re: $subject";

String formatTime(int? seconds) {
  if (seconds == null) return "";
  final date = DateTime.fromMillisecondsSinceEpoch(seconds * 1000, isUtc: true);
  return DateFormat.yMMMMd().add_jm().format(date.toLocal());
}

/// The full date is too wide for a list row's trailing slot — this is what
/// message_tile.dart shows instead: just a time for today, else a short date.
String formatShortTime(int? seconds) {
  if (seconds == null) return "";
  final date =
      DateTime.fromMillisecondsSinceEpoch(seconds * 1000, isUtc: true).toLocal();
  final now = DateTime.now();
  if (date.year == now.year && date.month == now.month && date.day == now.day) {
    return DateFormat.jm().format(date);
  }
  if (date.year == now.year) {
    return DateFormat.MMMd().format(date);
  }
  return DateFormat.yMd().format(date);
}

Future<void> copyText(BuildContext context, String text) async {
  await Clipboard.setData(ClipboardData(text: text));
  if (context.mounted) {
    ScaffoldMessenger.of(context)
        .showSnackBar(const SnackBar(content: Text("Copied to clipboard")));
  }
}