using System;
using System.Collections.Generic;

public static class EquipmentConsumableCatalog
{
    private static readonly EquipmentConsumableDescriptor[] Descriptors =
    {
        new EquipmentConsumableDescriptor(EquipmentConsumableKind.Material78101, "eqc_78101", "装备升级材料78101"),
        new EquipmentConsumableDescriptor(EquipmentConsumableKind.Material78111, "eqc_78111", "装备突破材料78111"),
        new EquipmentConsumableDescriptor(EquipmentConsumableKind.Material78121, "eqc_78121", "装备洗炼材料78121"),
        new EquipmentConsumableDescriptor(EquipmentConsumableKind.Material78131, "eqc_78131", "装备登顶材料78131")
    };

    private static readonly Dictionary<EquipmentConsumableKind, EquipmentConsumableDescriptor> ByKind = BuildByKind();
    private static readonly Dictionary<string, EquipmentConsumableDescriptor> ByKey = BuildByKey();

    public static IReadOnlyList<EquipmentConsumableDescriptor> All => Descriptors;

    public static string GetKey(EquipmentConsumableKind kind)
    {
        return ByKind[kind].Key;
    }

    public static string GetDisplayName(EquipmentConsumableKind kind)
    {
        return ByKind[kind].DisplayName;
    }

    public static bool TryGetKind(string key, out EquipmentConsumableKind kind)
    {
        kind = default;
        if (string.IsNullOrEmpty(key))
        {
            return false;
        }

        if (!ByKey.TryGetValue(key, out EquipmentConsumableDescriptor descriptor))
        {
            return false;
        }

        kind = descriptor.Kind;
        return true;
    }

    private static Dictionary<EquipmentConsumableKind, EquipmentConsumableDescriptor> BuildByKind()
    {
        var map = new Dictionary<EquipmentConsumableKind, EquipmentConsumableDescriptor>();
        for (int i = 0; i < Descriptors.Length; i++)
        {
            map[Descriptors[i].Kind] = Descriptors[i];
        }

        return map;
    }

    private static Dictionary<string, EquipmentConsumableDescriptor> BuildByKey()
    {
        var map = new Dictionary<string, EquipmentConsumableDescriptor>(StringComparer.Ordinal);
        for (int i = 0; i < Descriptors.Length; i++)
        {
            map[Descriptors[i].Key] = Descriptors[i];
        }

        return map;
    }
}

public sealed class EquipmentConsumableDescriptor
{
    public EquipmentConsumableDescriptor(EquipmentConsumableKind kind, string key, string displayName)
    {
        Kind = kind;
        Key = key;
        DisplayName = displayName;
    }

    public EquipmentConsumableKind Kind { get; }
    public string Key { get; }
    public string DisplayName { get; }
}