/// A user-defined supermarket with a display color.
library;

import 'package:flutter/material.dart';

class Supermarket {
  const Supermarket({
    this.id,
    required this.name,
    required this.colorValue,
    this.sortOrder = 0,
    this.bonusImagePath,
  });

  final int? id;
  final String name;
  final int colorValue;
  final int sortOrder;
  final String? bonusImagePath;

  Color get color => Color(colorValue);

  factory Supermarket.fromMap(Map<String, Object?> map) {
    return Supermarket(
      id: map['id'] as int?,
      name: map['name']! as String,
      colorValue: map['color']! as int,
      sortOrder: map['sort_order'] as int? ?? 0,
      bonusImagePath: map['bonus_image_path'] as String?,
    );
  }

  Supermarket copyWith({
    int? id,
    String? name,
    int? colorValue,
    int? sortOrder,
    String? bonusImagePath,
    bool clearBonusImage = false,
  }) {
    return Supermarket(
      id: id ?? this.id,
      name: name ?? this.name,
      colorValue: colorValue ?? this.colorValue,
      sortOrder: sortOrder ?? this.sortOrder,
      bonusImagePath: clearBonusImage
          ? null
          : (bonusImagePath ?? this.bonusImagePath),
    );
  }
}

/// Puts stores with the most recent trip first, then earlier trips, then unused.
List<Supermarket> sortStoresByLastTrip(
  List<Supermarket> stores,
  Iterable<String> lastTripStores,
) {
  final rank = <String, int>{};
  var next = 0;
  for (final name in lastTripStores) {
    final key = name.trim().toUpperCase();
    if (key.isEmpty || rank.containsKey(key)) continue;
    rank[key] = next++;
  }

  final sorted = [...stores];
  sorted.sort((a, b) {
    final aRank = rank[a.name.trim().toUpperCase()] ?? 1 << 20;
    final bRank = rank[b.name.trim().toUpperCase()] ?? 1 << 20;
    final byTrip = aRank.compareTo(bRank);
    if (byTrip != 0) return byTrip;
    final byOrder = a.sortOrder.compareTo(b.sortOrder);
    if (byOrder != 0) return byOrder;
    return a.name.toLowerCase().compareTo(b.name.toLowerCase());
  });
  return sorted;
}

/// Palette offered when the user picks a store color.
const List<int> kStoreColorPalette = [
  0xFFEEC21B, // Jumbo yellow
  0xFF0050AA, // Lidl blue
  0xFF00A0E2, // AH blue
  0xFF00205B, // Aldi navy
  0xFF6EC31E, // Plus green
  0xFFE30613, // Dirk / Coop red
  0xFF009640, // SPAR green
  0xFFE87722, // orange
  0xFFE31C5F, // Picnic pink
  0xFF7B1FA2, // purple
  0xFF00897B, // teal
  0xFF78909C, // grey
];