NHSE/NHSE.Core/Strings/GameStrings.cs

using System.Collections.Generic;

namespace NHSE.Core
{
    public sealed class GameStrings
    {
        private readonly string lang;

        public readonly string[] villagers;
        public readonly string[] itemlist;
        public readonly string[] itemlistdisplay;
        public readonly Dictionary<string, string> VillagerMap;
        public readonly List<ComboItem> ItemDataSource;

        private string[] Get(string ident) => GameLanguage.GetStrings(ident, lang);

        public GameStrings(string l)
        {
            lang = l;
            villagers = Get("villager");
            VillagerMap = GetMap(villagers);
            itemlist = Get("item");
            itemlistdisplay = GetItemDisplayList(itemlist);
            ItemDataSource = CreateItemDataSource(itemlistdisplay);
        }

        private List<ComboItem> CreateItemDataSource(string[] strings)
        {
            var dataSource = ComboItemUtil.GetArray(strings);

            // load special
            dataSource.Add(new ComboItem(itemlist[0], Item.NONE));
            dataSource.SortByText();

            return dataSource;
        }

        private static Dictionary<string, string> GetMap(IReadOnlyCollection<string> arr)
        {
            var map = new Dictionary<string, string>(arr.Count);
            foreach (var kvp in arr)
            {
                var split = kvp.Split('\t');
                map.Add(split[0], split[1]);
            }
            return map;
        }

        public string GetVillager(string name)
        {
            return VillagerMap.TryGetValue(name, out var result) ? result : "???";
        }

        public static string[] GetItemDisplayList(string[] items)
        {
            items = (string[])items.Clone();
            items[0] = string.Empty;
            var set = new HashSet<string>();
            for (int i = 0; i < items.Length; i++)
            {
                var item = items[i];
                if (string.IsNullOrEmpty(item))
                    items[i] = $"(Item #{i:000})";
                else if (set.Contains(item))
                    items[i] += $" (#{i:000})";
                else
                    set.Add(item);
            }
            return items;
        }

        public string GetItemName(ushort index)
        {
            if (index == Item.NONE)
                return itemlist[0];
            if (index >= itemlistdisplay.Length)
                return "???";
            return itemlistdisplay[index];
        }
    }
}