import 'package:fancake/features/home/home_repository_firestore.dart'
    show HotArchiveRule, hotArchiveOrder;
import 'package:flutter_test/flutter_test.dart';

/// HOT ARCHIVE — Figma `2097:16415` 「목표 달성 임박 > 실시간 기여 급증 > 신규 등록, 최대 5개」.
void main() {
  final t0 = DateTime(2026, 10, 1);
  ({String id, double percent, int recentPop, DateTime createdAt}) c(
    String id,
    double percent,
    int recent,
    int day,
  ) => (
    id: id,
    percent: percent,
    recentPop: recent,
    createdAt: t0.add(Duration(days: day)),
  );

  test('임박 → 급증 → 신규 순이고 5건까지만', () {
    final order = hotArchiveOrder([
      c('old', 10, 0, 0),
      c('new', 10, 0, 5),
      c('surge-small', 20, 100, 1),
      c('surge-big', 30, 900, 0),
      c('imminent-90', 90, 0, 0),
      c('imminent-99', 99, 0, 0),
      c('rich-but-slow', 70, 0, 6),
    ], const HotArchiveRule());
    expect(order, [
      'imminent-99',
      'imminent-90',
      'surge-big',
      'surge-small',
      'rich-but-slow',
    ]);
  });

  test('기준값은 운영값(config/policy.hotArchive)을 따르고 없으면 임시값', () {
    expect(HotArchiveRule.from(null).imminentPercent, 80);
    expect(HotArchiveRule.from(null).surgeWindow, const Duration(minutes: 60));
    final rule = HotArchiveRule.from({
      'hotArchive': {'imminentPercent': 95, 'surgeWindowMinutes': 30},
    });
    expect(rule.imminentPercent, 95);
    expect(rule.surgeWindow, const Duration(minutes: 30));
    expect(
      hotArchiveOrder([c('a', 90, 0, 0), c('b', 10, 5, 0)], rule),
      ['b', 'a'],
    );
  });
}