import 'package:flutter_riverpod/flutter_riverpod.dart';

import '../models/timecard.dart';
import 'seed.dart';

class TimecardsController extends Notifier<List<Timecard>> {
  @override
  List<Timecard> build() => Seed.timecards();

  void add(Timecard card) {
    state = [card, ...state];
  }

  void approve(String id) {
    state = [
      for (final t in state)
        if (t.id == id) t.copyWith(status: TimecardStatus.approved) else t,
    ];
  }

  void dispute(String id, String note) {
    state = [
      for (final t in state)
        if (t.id == id)
          t.copyWith(status: TimecardStatus.disputed, disputeNote: note)
        else
          t,
    ];
  }

  Timecard? byId(String id) {
    for (final t in state) {
      if (t.id == id) return t;
    }
    return null;
  }
}

final timecardsProvider = NotifierProvider<TimecardsController, List<Timecard>>(
  TimecardsController.new,
);

/// Timecards still waiting on the worker to confirm or dispute.
final timecardsNeedingReviewProvider = Provider<List<Timecard>>((ref) {
  return ref
      .watch(timecardsProvider)
      .where((t) => t.status == TimecardStatus.needsReview)
      .toList();
});