using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using RadicadeServer.DB;
using RadicadeServer.Extensions;
using RadicadeServer.RecNet.Accounts;
using RadicadeServer.RecNet.Avatar;

namespace RadicadeServer.API.Avatars.V2
{
	[Route("api/equipment/v2")]
	[Route("econ/api/equipment/v2")]
	public class EquipmentV2 : Controller
	{
		RecDBContext db;
		public EquipmentV2(RecDBContext context)
		{
			this.db = context;
		}

		[HttpGet("getUnlocked"), Authorize]
		public List<Equipment> GetUnlockedEquipment()
		{
			var userId = User.GetUserId();

			var items = db.Unlocks.FirstOrDefault(x => x.AccountId == userId);
			var defaultEquipment = TryReadEquipment(LockerAccess.HasFullInventory(db, userId)
				? EquipmentSkinCatalog.MergeInto(DBConfig.DefaultEquipmentItems, DBConfig.DefaultEquipmentSkinItems)
				: DBConfig.DefaultEquipmentUnlocks);
			var playerEquipment = GetPlayerEquipment(items);

			return MergeEquipment(defaultEquipment, playerEquipment);
		}

		private static List<Equipment> TryReadEquipment(string json)
		{
			try
			{
				return (json.FromJson<List<Equipment>>() ?? new List<Equipment>())
					.Where(x => !string.IsNullOrWhiteSpace(x.PrefabName))
					.Select(NormalizeEquipment)
					.ToList();
			}
			catch
			{
				return new List<Equipment>();
			}
		}

		private static List<Equipment> GetPlayerEquipment(PlayerUnlocks? items)
		{
			try
			{
				return items?.GetEquipment() ?? new List<Equipment>();
			}
			catch
			{
				return new List<Equipment>();
			}
		}

		private static List<Equipment> MergeEquipment(IEnumerable<Equipment> defaults, IEnumerable<Equipment> playerEquipment)
		{
			var merged = new Dictionary<string, Equipment>();

			foreach (var item in defaults.Concat(playerEquipment).Select(NormalizeEquipment))
			{
				if (string.IsNullOrWhiteSpace(item.PrefabName)) continue;
				merged[$"{item.PrefabName}\u001f{item.ModificationGuid}"] = item;
			}

			return merged.Values.ToList();
		}

		private static Equipment NormalizeEquipment(Equipment item)
		{
			item.PrefabName ??= "";
			item.ModificationGuid ??= "";
			item.FriendlyName = string.IsNullOrWhiteSpace(item.FriendlyName) ? item.PrefabName : item.FriendlyName;
			item.Tooltip ??= "";
			return item;
		}
	}
}