using System;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using Questionable.Model.Questing;

namespace Questionable.Controller.Conditions;

internal sealed class StopConditionConverter : JsonConverter<StopCondition>
{
	public override StopCondition? ReadJson(JsonReader reader, Type objectType, StopCondition? existingValue, bool hasExistingValue, JsonSerializer serializer)
	{
		try
		{
			return ReadJsonCore(reader);
		}
		catch (Exception)
		{
			return null;
		}
	}

	private static StopCondition? ReadJsonCore(JsonReader reader)
	{
		JObject jObject = JObject.Load(reader);
		StopCondition stopCondition;
		switch (jObject["Type"]?.Value<string>())
		{
		case "QuestComplete":
		{
			ElementId elementId2 = DeserializeElementId(jObject["QuestId"]);
			if ((object)elementId2 != null)
			{
				stopCondition = new QuestCompleteCondition
				{
					QuestId = elementId2,
					Sequence = jObject["Sequence"]?.Value<int?>()
				};
				break;
			}
			goto default;
		}
		case "QuestAccept":
		{
			ElementId elementId = DeserializeElementId(jObject["QuestId"]);
			if ((object)elementId != null)
			{
				stopCondition = new QuestAcceptCondition
				{
					QuestId = elementId
				};
				break;
			}
			goto default;
		}
		case "Level":
			stopCondition = new LevelCondition
			{
				TargetLevel = (jObject["TargetLevel"]?.Value<int>() ?? 50)
			};
			break;
		case "GlobalSequence":
			stopCondition = new GlobalSequenceCondition
			{
				TargetSequence = (jObject["TargetSequence"]?.Value<int>() ?? 1)
			};
			break;
		case "InventoryFull":
			stopCondition = new InventoryFullCondition();
			break;
		case "BeforeDuty":
			stopCondition = new BeforeDutyCondition();
			break;
		case "GilThreshold":
			stopCondition = new GilThresholdCondition
			{
				MinGil = (jObject["MinGil"]?.Value<int>() ?? 1000)
			};
			break;
		default:
			stopCondition = null;
			break;
		}
		StopCondition stopCondition2 = stopCondition;
		if (stopCondition2 != null)
		{
			int? num = jObject["Mode"]?.Value<int>();
			if (num.HasValue)
			{
				int valueOrDefault = num.GetValueOrDefault();
				stopCondition2.Mode = (EStopConditionMode)valueOrDefault;
			}
		}
		return stopCondition2;
	}

	public override void WriteJson(JsonWriter writer, StopCondition? value, JsonSerializer serializer)
	{
		if (value == null || value.IsSession)
		{
			writer.WriteNull();
			return;
		}
		JObject jObject = new JObject
		{
			["Type"] = value.Type.ToString(),
			["Mode"] = (int)value.Mode
		};
		if (!(value is QuestCompleteCondition questCompleteCondition))
		{
			if (!(value is QuestAcceptCondition questAcceptCondition))
			{
				if (!(value is LevelCondition levelCondition))
				{
					if (!(value is GlobalSequenceCondition globalSequenceCondition))
					{
						if (value is GilThresholdCondition gilThresholdCondition)
						{
							jObject["MinGil"] = gilThresholdCondition.MinGil;
						}
					}
					else
					{
						jObject["TargetSequence"] = globalSequenceCondition.TargetSequence;
					}
				}
				else
				{
					jObject["TargetLevel"] = levelCondition.TargetLevel;
				}
			}
			else
			{
				jObject["QuestId"] = questAcceptCondition.QuestId.ToString();
			}
		}
		else
		{
			jObject["QuestId"] = questCompleteCondition.QuestId.ToString();
			if (questCompleteCondition.Sequence.HasValue)
			{
				jObject["Sequence"] = questCompleteCondition.Sequence;
			}
		}
		jObject.WriteTo(writer);
	}

	private static ElementId? DeserializeElementId(JToken? token)
	{
		string text = token?.Value<string>();
		if (text == null)
		{
			return null;
		}
		if (!ElementId.TryFromString(text, out ElementId elementId))
		{
			return null;
		}
		return elementId;
	}
}