#define RELEASE
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text.Json;
using System.Text.Json.Nodes;
using Dalamud.Plugin;
using LLib.GameData;
using Microsoft.Extensions.Logging;
using Questionable.Data;
using Questionable.GatheringPaths;
using Questionable.Model;
using Questionable.Model.Gathering;
using Questionable.Validation;
using Questionable.Validation.Validators;

namespace Questionable.Controller;

internal sealed class GatheringPointRegistry
{
	private readonly IDalamudPluginInterface _pluginInterface;

	private readonly GatheringData _gatheringData;

	private readonly GatheringSchemaValidator _gatheringSchemaValidator;

	private readonly QuestValidator _questValidator;

	private readonly ILogger<GatheringPointRegistry> _logger;

	private volatile Dictionary<GatheringPointId, GatheringRoot> _gatheringPoints = new Dictionary<GatheringPointId, GatheringRoot>();

	public GatheringPointRegistry(IDalamudPluginInterface pluginInterface, GatheringData gatheringData, GatheringSchemaValidator gatheringSchemaValidator, QuestValidator questValidator, ILogger<GatheringPointRegistry> logger)
	{
		_pluginInterface = pluginInterface;
		_gatheringData = gatheringData;
		_gatheringSchemaValidator = gatheringSchemaValidator;
		_questValidator = questValidator;
		_logger = logger;
	}

	public Dictionary<GatheringPointId, GatheringRoot> Build()
	{
		Dictionary<GatheringPointId, GatheringRoot> dictionary = new Dictionary<GatheringPointId, GatheringRoot>();
		_gatheringSchemaValidator.Reset();
		LoadGatheringPointsFromAssembly(dictionary);
		try
		{
			LoadFromDirectory(dictionary, new DirectoryInfo(Path.Combine(_pluginInterface.ConfigDirectory.FullName, "GatheringPoints")));
		}
		catch (Exception exception)
		{
			_logger.LogError(exception, "Failed to load gathering points from user directory (some may have been successfully loaded)");
		}
		foreach (ValidationIssue item in _gatheringSchemaValidator.Validate())
		{
			_questValidator.AddValidationIssue(item);
		}
		_logger.LogDebug("Loaded {Count} gathering points in total", dictionary.Count);
		return dictionary;
	}

	public void Publish(Dictionary<GatheringPointId, GatheringRoot> gatheringPoints)
	{
		_gatheringPoints = gatheringPoints;
	}

	public void Reload()
	{
		Publish(Build());
	}

	[Conditional("RELEASE")]
	private void LoadGatheringPointsFromAssembly(Dictionary<GatheringPointId, GatheringRoot> gatheringPoints)
	{
		foreach (var (value, value2) in AssemblyGatheringLocationLoader.GetLocations())
		{
			gatheringPoints[new GatheringPointId(value)] = value2;
		}
		_logger.LogDebug("Loaded {Count} gathering points from assembly", gatheringPoints.Count);
	}

	[Conditional("DEBUG")]
	private void LoadGatheringPointsFromProjectDirectory(Dictionary<GatheringPointId, GatheringRoot> gatheringPoints)
	{
		DirectoryInfo directoryInfo = _pluginInterface.AssemblyLocation.Directory?.Parent?.Parent;
		if (directoryInfo == null)
		{
			_logger.LogWarning("Could not determine solution directory from assembly location: {AssemblyLocation}", _pluginInterface.AssemblyLocation.FullName);
			return;
		}
		DirectoryInfo directoryInfo2 = new DirectoryInfo(Path.Combine(directoryInfo.FullName, "Paths", "GatheringPaths"));
		try
		{
			foreach (string value in ExpansionData.ExpansionFolders.Values)
			{
				LoadFromDirectory(gatheringPoints, new DirectoryInfo(Path.Combine(directoryInfo2.FullName, value)));
			}
		}
		catch (Exception exception)
		{
			gatheringPoints.Clear();
			_logger.LogError(exception, "Failed to load gathering points from project directory");
		}
	}

	private void LoadGatheringPointFromStream(Dictionary<GatheringPointId, GatheringRoot> gatheringPoints, string fileName, Stream stream)
	{
		GatheringPointId gatheringPointId = ExtractGatheringPointIdFromName(fileName);
		if (!(gatheringPointId == null))
		{
			JsonNode jsonNode = JsonNode.Parse(stream);
			if (jsonNode != null)
			{
				_gatheringSchemaValidator.Enqueue(gatheringPointId.Value, jsonNode);
				gatheringPoints[gatheringPointId] = jsonNode.Deserialize<GatheringRoot>();
			}
		}
	}

	private void LoadFromDirectory(Dictionary<GatheringPointId, GatheringRoot> gatheringPoints, DirectoryInfo directory)
	{
		if (!directory.Exists)
		{
			_logger.LogDebug("Not loading gathering points from {DirectoryName} (doesn't exist)", directory);
			return;
		}
		FileInfo[] files = directory.GetFiles("*.json");
		foreach (FileInfo fileInfo in files)
		{
			try
			{
				using FileStream stream = fileInfo.OpenRead();
				LoadGatheringPointFromStream(gatheringPoints, fileInfo.Name, stream);
			}
			catch (JsonException ex)
			{
				GatheringPointId gatheringPointId = ExtractGatheringPointIdFromName(fileInfo.Name);
				_logger.LogError(ex, "Unable to parse gathering point file {FileName}", fileInfo.FullName);
				_questValidator.AddValidationIssue(new ValidationIssue
				{
					PathType = EPathType.Gathering,
					Id = gatheringPointId?.Value.ToString(CultureInfo.InvariantCulture),
					Location = null,
					Type = EIssueType.InvalidJsonSyntax,
					Severity = EIssueSeverity.Error,
					Description = "JSON syntax error in " + fileInfo.Name + ": " + ex.Message
				});
			}
			catch (Exception innerException)
			{
				throw new InvalidDataException("Unable to load file " + fileInfo.FullName, innerException);
			}
		}
		DirectoryInfo[] directories = directory.GetDirectories();
		foreach (DirectoryInfo directory2 in directories)
		{
			LoadFromDirectory(gatheringPoints, directory2);
		}
	}

	private static GatheringPointId? ExtractGatheringPointIdFromName(string resourceName)
	{
		string fileNameWithoutExtension = Path.GetFileNameWithoutExtension(resourceName);
		fileNameWithoutExtension = fileNameWithoutExtension.Substring(fileNameWithoutExtension.LastIndexOf('.') + 1);
		if (!fileNameWithoutExtension.Contains('_', StringComparison.Ordinal))
		{
			return null;
		}
		return GatheringPointId.FromString(fileNameWithoutExtension.Split('_', 2)[0]);
	}

	public bool TryGetGatheringPoint(GatheringPointId gatheringPointId, [NotNullWhen(true)] out GatheringRoot? gatheringRoot)
	{
		return _gatheringPoints.TryGetValue(gatheringPointId, out gatheringRoot);
	}

	public bool TryGetGatheringPointId(uint itemId, EClassJob classJobId, [NotNullWhen(true)] out GatheringPointId? gatheringPointId)
	{
		Dictionary<GatheringPointId, GatheringRoot> gatheringPoints = _gatheringPoints;
		switch (classJobId)
		{
		case EClassJob.Miner:
			if (_gatheringData.TryGetMinerGatheringPointByItemId(itemId, out gatheringPointId))
			{
				return true;
			}
			gatheringPointId = (from x in gatheringPoints
				where x.Value.ExtraQuestItems.Contains(itemId)
				select x.Key).FirstOrDefault((GatheringPointId x) => _gatheringData.MinerGatheringPoints.Contains(x));
			return gatheringPointId != null;
		case EClassJob.Botanist:
			if (_gatheringData.TryGetBotanistGatheringPointByItemId(itemId, out gatheringPointId))
			{
				return true;
			}
			gatheringPointId = (from x in gatheringPoints
				where x.Value.ExtraQuestItems.Contains(itemId)
				select x.Key).FirstOrDefault((GatheringPointId x) => _gatheringData.BotanistGatheringPoints.Contains(x));
			return gatheringPointId != null;
		default:
			gatheringPointId = null;
			return false;
		}
	}
}