using Microsoft.AspNetCore.Mvc;
using RadicadeServer.DB;
using RadicadeServer.Extensions;
using RadicadeServer.RecNet;
using RadicadeServer.Utils;

namespace RadicadeServer.CDN.Config
{
	[Route("cdn/config")]
	public class CDNConfigAPI : Controller
	{
		RecDBContext db;
		public CDNConfigAPI(RecDBContext context)
		{
			this.db = context;
		}

		[HttpGet("LoadingScreenTipData")]
		public List<LoadingScreenTip> GetLoadingScreenTipData()
		{
			var official = LoadingScreenImages.Tips;
			var officialNames = new HashSet<string>(LoadingScreenImages.Names, StringComparer.OrdinalIgnoreCase);

			var loadingScreens = db.ServerConfig.FirstOrDefault(x => x.Key == "LoadingScreenTipData");
			var stored = string.IsNullOrWhiteSpace(loadingScreens?.Value) || loadingScreens.Value == "[]"
				? new List<LoadingScreenTip>()
				: loadingScreens.Value.FromJson<List<LoadingScreenTip>>() ?? new List<LoadingScreenTip>();

			var byImage = new Dictionary<string, LoadingScreenTip>(StringComparer.OrdinalIgnoreCase);
			foreach (var tip in stored)
			{
				if (!string.IsNullOrWhiteSpace(tip.ImageName))
					byImage.TryAdd(tip.ImageName, tip);
			}

			var adopted = stored.FirstOrDefault(tip =>
				!officialNames.Contains(tip.ImageName ?? string.Empty)
				&& !(tip.Title == "radicade" && tip.Message == "yum"));

			var tips = new List<LoadingScreenTip>(official.Count);
			for (var i = 0; i < official.Count; i++)
			{
				var image = official[i].ImageName;
				var text = byImage.TryGetValue(image, out var storedTip) ? storedTip
					: i == 0 && adopted != null ? adopted
					: official[i];

				tips.Add(new LoadingScreenTip
				{
					ImageName = image,
					Title = string.IsNullOrWhiteSpace(text.Title) ? official[i].Title : text.Title,
					Message = string.IsNullOrWhiteSpace(text.Message) ? official[i].Message : text.Message,
					RoomNames = text.RoomNames ?? new List<string>(),
					PlatformMask = text.PlatformMask
				});
			}

			return tips;
		}
	}
}