using System.Collections.Generic;
using System.Numerics;
using Microsoft.Extensions.Logging;
using Questionable.Data;
using Questionable.Model;
using Questionable.Model.Questing;
using Questionable.Navigation;
using SmartNav;
using SmartNav.Data;
using SmartNav.Model;

namespace Questionable.Controller.Steps.Shared;

internal static class SmartNavStep
{
	internal sealed class Factory(NavRouter navRouter, PlayerNavStateBuilder playerNavStateBuilder, RouteInstructionBuilder instructionBuilder, SmartNavTaskMapper taskMapper, SmartNavReRouteService reRouteService, AetheryteData aetheryteData, TerritoryData territoryData, ILogger<Factory> logger) : ITaskFactory
	{
		public bool HandledRouting { get; private set; }

		public IEnumerable<ITask> CreateAllTasks(Quest quest, QuestSequence sequence, QuestStep step)
		{
			HandledRouting = false;
			Vector3? vector = ResolveDestination(step);
			if (!vector.HasValue)
			{
				yield break;
			}
			PlayerNavState playerNavState = playerNavStateBuilder.Build();
			if (playerNavState == null)
			{
				yield break;
			}
			RouteResult routeResult = navRouter.FindRoute(playerNavState, step.TerritoryId, vector.Value);
			if (routeResult.Segments.Count == 0)
			{
				yield break;
			}
			HandledRouting = true;
			logger.LogDebug("SmartNav routing to {Territory} with {Count} segments", territoryData.GetNameAndId(step.TerritoryId), routeResult.Segments.Count);
			reRouteService.SetDestination(step.TerritoryId, vector.Value);
			foreach (ITask item in taskMapper.MapInstructions(instructionBuilder.Build(routeResult, step.TerritoryId, step.DisableNavmesh), step))
			{
				yield return item;
			}
		}

		private Vector3? ResolveDestination(QuestStep step)
		{
			if (step.Position.HasValue)
			{
				return step.Position;
			}
			EAetheryteLocation valueOrDefault = default(EAetheryteLocation);
			bool flag;
			if (step != null)
			{
				EInteractionType interactionType = step.InteractionType;
				if ((uint)(interactionType - 4) <= 1u)
				{
					EAetheryteLocation? aetheryte = step.Aetheryte;
					if (aetheryte.HasValue)
					{
						valueOrDefault = aetheryte.GetValueOrDefault();
						flag = true;
						goto IL_004b;
					}
				}
			}
			flag = false;
			goto IL_004b;
			IL_004b:
			if (flag && aetheryteData.Locations.TryGetValue(valueOrDefault, out var value))
			{
				return value;
			}
			if (step != null && step.InteractionType == EInteractionType.AttuneAethernetShard)
			{
				EAetheryteLocation? aetheryte = step.AethernetShard;
				if (aetheryte.HasValue)
				{
					EAetheryteLocation valueOrDefault2 = aetheryte.GetValueOrDefault();
					if (aetheryteData.Locations.TryGetValue(valueOrDefault2, out var value2))
					{
						return value2;
					}
				}
			}
			return null;
		}
	}
}