using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using RadicadeServer.API.Notifications;
using RadicadeServer.DB;
using RadicadeServer.Extensions;
using RadicadeServer.RecNet.Enums.Messages;
using RadicadeServer.RecNet.Messages;
using RadicadeServer.RecNet.Responses;

namespace RadicadeServer.API.Messages
{
	[Route("api/messages/")]
	public class MessagesAPI : Controller
	{
		RecDBContext db;
		public MessagesAPI(RecDBContext context)
		{
			this.db = context;
		}

		[HttpGet("v1/favoriteFriendOnlineStatus"), Authorize]
		public async Task<Success> NotifyFavoriteFriends()
		{
			var userId = User.GetUserId();

			var favoritedUsers = await db.Relationships.Where(x => x.AccountId == userId && x.Favorited != RecNet.Relationships.ReciprocalStatus.None).ToListAsync();

			foreach (var favorited in favoritedUsers)
			{
				var presence = await db.Presences.FirstOrDefaultAsync(x => x.isOnline && x.playerId == favorited.PlayerId);
				if (presence != null)
					await Notify.SendMessage(favorited.AccountId, new Message { FromPlayerId = (long)userId!, Type = MessageType.FriendStatusOnline });
			}

			return new Success(true, null, null);
		}

		[HttpGet("v2/get"), Authorize]
		public async Task<List<Message>?> GetMessages()
		{
			var userId = User.GetUserId();

			return await db.Messages.Where(x => x.ToPlayerId == userId && !x.IsDismissed).ToListAsync();
		}

		[HttpPost("v3/delete"), Authorize]
		public async Task<Success?> DeleteMessage([FromBody] DeleteMessageRequestDTO req)
		{
			var userId = User.GetUserId();
			if (req.MessageIds == null || req.MessageIds.Count == 0) return new Success(false, "Invalid Ids", null);

			int deleted = 0;

			foreach (var id in req.MessageIds)
			{
				var msg = await db.Messages.FirstOrDefaultAsync(x => x.Id == id && x.ToPlayerId == userId);
				if (msg == null) { continue; }
				if (msg.Type == MessageType.GameInviteV2 || msg.Type == MessageType.GameInvite)
					msg.IsDismissed = true;
				else
					db.Messages.Remove(msg);
				deleted++;
			}

			await db.SaveChangesAsync();

			return new Success(true, null, null);
		}

		[HttpPost("v2/send"), Authorize]
		public async Task<Success> SendMessage([FromForm] long ToPlayerId, [FromForm] MessageType Type, [FromForm] string? Data, [FromForm] long? RoomId)
		{
			var userId = User.GetUserId();
			await Notify.SendMessage(ToPlayerId, new Message { FromPlayerId = (long)userId!, Type = Type, Data = Data ?? "", RoomId = RoomId });
			return new Success(true, null, null);
		}

		[HttpPost("v1/sendMultiple"), Authorize]
		public async Task<Success> SendMultipleMessages([FromBody] SendMultipleMessagesRequestDTO req)
		{
			var userId = User.GetUserId();
			if (userId == null) return new Success(false, "Not signed in", null);

			var recipients = (req.ToPlayerIds ?? new List<long>())
				.Where(id => id > 0)
				.Distinct()
				.ToList();
			if (recipients.Count == 0) return new Success(false, "ToPlayerIds is required", null);

			foreach (var toPlayerId in recipients)
				await Notify.SendMessage(toPlayerId, new Message
				{
					FromPlayerId = userId.Value,
					Type = req.Type,
					Data = req.Data ?? ""
				});

			return new Success(true, null, null);
		}

		[HttpPost("v1/friendOnlineStatus"), Authorize]
		public async Task<Success> FriendOnlineStatus()
		{
			var userId = User.GetUserId();
			if (userId == null)
				return new Success(false, "Not signed in", null);

			var friendIds = await db.Relationships.AsNoTracking()
				.Where(x => x.AccountId == userId && x.RelationshipType == RecNet.Relationships.RelationshipType.Friend)
				.Select(x => x.PlayerId)
				.ToListAsync();

			var onlineCount = friendIds.Count == 0
				? 0
				: await db.Presences.AsNoTracking()
					.CountAsync(p => friendIds.Contains(p.playerId) && p.isOnline);

			return new Success(true, null, new { FriendsOnlineCount = onlineCount });
		}
	}
}