#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 System.Text.RegularExpressions;
using Dalamud.Plugin;
using Dalamud.Plugin.Ipc;
using Dalamud.Plugin.Services;
using LLib.GameData;
using Microsoft.Extensions.Logging;
using Questionable.Data;
using Questionable.Model;
using Questionable.Model.Questing;
using Questionable.QuestPaths;
using Questionable.Validation;
using Questionable.Validation.Validators;

namespace Questionable.Controller;

internal sealed class QuestRegistry
{
	private readonly IDalamudPluginInterface _pluginInterface;

	private readonly QuestData _questData;

	private readonly QuestValidator _questValidator;

	private readonly JsonSchemaValidator _jsonSchemaValidator;

	private readonly ILogger<QuestRegistry> _logger;

	private readonly TerritoryData _territoryData;

	private readonly IChatGui _chatGui;

	private readonly ICallGateProvider<object> _reloadDataIpc;

	private readonly Dictionary<ElementId, Quest> _quests = new Dictionary<ElementId, Quest>();

	private readonly Dictionary<uint, (ElementId QuestId, QuestStep Step)> _contentFinderConditionIds = new Dictionary<uint, (ElementId, QuestStep)>();

	private readonly List<(uint ContentFinderConditionId, ElementId QuestId, int Sequence)> _lowPriorityContentFinderConditionQuests = new List<(uint, ElementId, int)>();

	private readonly Dictionary<ElementId, string> _questFolderNames = new Dictionary<ElementId, string>();

	public IEnumerable<Quest> AllQuests => _quests.Values;

	public int Count => _quests.Count<KeyValuePair<ElementId, Quest>>((KeyValuePair<ElementId, Quest> x) => !x.Value.Root.Disabled);

	public int ValidationIssueCount => _questValidator.IssueCount;

	public int ValidationErrorCount => _questValidator.ErrorCount;

	public IReadOnlyList<(uint ContentFinderConditionId, ElementId QuestId, int Sequence)> LowPriorityContentFinderConditionQuests => _lowPriorityContentFinderConditionQuests;

	public event EventHandler? Reloaded;

	public QuestRegistry(IDalamudPluginInterface pluginInterface, QuestData questData, QuestValidator questValidator, JsonSchemaValidator jsonSchemaValidator, ILogger<QuestRegistry> logger, TerritoryData territoryData, IChatGui chatGui)
	{
		_pluginInterface = pluginInterface;
		_questData = questData;
		_questValidator = questValidator;
		_jsonSchemaValidator = jsonSchemaValidator;
		_logger = logger;
		_territoryData = territoryData;
		_chatGui = chatGui;
		_reloadDataIpc = _pluginInterface.GetIpcProvider<object>("Questionable.ReloadData");
	}

	public void Reload()
	{
		_questValidator.Reset();
		_quests.Clear();
		_contentFinderConditionIds.Clear();
		_lowPriorityContentFinderConditionQuests.Clear();
		_questFolderNames.Clear();
		LoadQuestsFromAssembly();
		try
		{
			LoadFromDirectory(new DirectoryInfo(Path.Combine(_pluginInterface.ConfigDirectory.FullName, "Quests")), Quest.ESource.UserDirectory);
		}
		catch (Exception exception)
		{
			_logger.LogError(exception, "Failed to load all quests from user directory (some may have been successfully loaded)");
		}
		LoadCfcIds();
		ValidateQuests();
		this.Reloaded?.Invoke(this, EventArgs.Empty);
		try
		{
			_reloadDataIpc.SendMessage();
		}
		catch (Exception exception2)
		{
			_logger.LogWarning(exception2, "Error during Reload.SendMessage IPC");
		}
		_logger.LogInformation("Loaded {Count} quests in total", _quests.Count);
	}

	[Conditional("RELEASE")]
	private void LoadQuestsFromAssembly()
	{
		_logger.LogInformation("Loading quests from assembly");
		foreach (var (elementId2, questRoot2) in AssemblyQuestLoader.GetQuests())
		{
			try
			{
				bool? flag = null;
				DateTime? dateTime = null;
				bool flag2 = false;
				bool flag3 = false;
				try
				{
					flag = questRoot2.IsSeasonalQuest;
					flag2 = flag.HasValue;
					if (questRoot2.SeasonalQuestExpiry.HasValue)
					{
						dateTime = DateTime.SpecifyKind(questRoot2.SeasonalQuestExpiry.Value, DateTimeKind.Utc);
						flag3 = true;
					}
				}
				catch (Exception exception)
				{
					_logger.LogWarning(exception, "Failed to read seasonal fields from embedded QuestRoot for {QuestId}", elementId2);
				}
				if (_questData.TryGetQuestInfo(elementId2, out IQuestInfo questInfo))
				{
					goto IL_01c8;
				}
				if (elementId2 is UnlockLinkId unlockLinkId)
				{
					string text = unlockLinkId.ToString();
					if (text.Length > 1 && text.StartsWith('U'))
					{
						string text2 = text.Substring(1);
						string text3 = ((text2 == "568") ? "Patch 7.3 Fantasia" : ((!(text2 == "506")) ? ("U" + text2) : "Patch 7.2 Fantasia"));
						text = text3;
					}
					else
					{
						text = $"Unlock Link {unlockLinkId.Value}";
					}
					questInfo = new UnlockLinkQuestInfo(unlockLinkId, text, 0u, dateTime);
					_logger.LogDebug("Created UnlockLinkQuestInfo for {QuestId} from assembly", elementId2);
					_questData.AddOrReplaceQuestInfo(questInfo);
					goto IL_01c8;
				}
				_logger.LogWarning("Not loading unknown quest {QuestId} from assembly: Quest not found in quest data", elementId2);
				goto end_IL_003d;
				IL_01c8:
				if (flag2 || flag3)
				{
					bool flag4 = flag ?? questInfo.IsSeasonalQuest;
					_questData.ApplySeasonalOverride(elementId2, flag4, dateTime);
					_logger.LogDebug("Applied seasonal override for quest {QuestId} from assembly: IsSeasonal={IsSeasonal}, Expiry={Expiry}", elementId2, flag4, dateTime?.ToString("o") ?? "(null)");
				}
				IQuestInfo questInfo2 = _questData.GetQuestInfo(elementId2);
				Quest quest = new Quest
				{
					Id = elementId2,
					Root = questRoot2,
					Info = questInfo2,
					Source = Quest.ESource.Assembly
				};
				_quests[quest.Id] = quest;
				end_IL_003d:;
			}
			catch (Exception ex)
			{
				_logger.LogWarning("Not loading unknown quest {QuestId} from assembly: {Message}", elementId2, ex.Message);
			}
		}
		_logger.LogInformation("Loaded {Count} quests from assembly", _quests.Count);
	}

	[Conditional("DEBUG")]
	private void LoadQuestsFromProjectDirectory()
	{
		DirectoryInfo directoryInfo = _pluginInterface.AssemblyLocation.Directory?.Parent?.Parent;
		if (directoryInfo == null)
		{
			return;
		}
		DirectoryInfo directoryInfo2 = new DirectoryInfo(Path.Combine(directoryInfo.FullName, "QuestPaths"));
		if (!directoryInfo2.Exists)
		{
			return;
		}
		try
		{
			foreach (string value in ExpansionData.ExpansionFolders.Values)
			{
				LoadFromDirectory(new DirectoryInfo(Path.Combine(directoryInfo2.FullName, value)), Quest.ESource.ProjectDirectory, LogLevel.Trace);
			}
		}
		catch (Exception ex)
		{
			_quests.Clear();
			_chatGui.PrintError("Unable to load quests - " + ex.GetType().Name + ": " + ex.Message, "Questionable", 576);
			_logger.LogError(ex, "Failed to load quests from project directory");
		}
	}

	private void LoadCfcIds()
	{
		foreach (Quest value in _quests.Values)
		{
			foreach (QuestSequence item in value.AllSequences())
			{
				foreach (QuestStep item2 in item.Steps.Where(delegate(QuestStep x)
				{
					EInteractionType interactionType = x.InteractionType;
					return (uint)(interactionType - 18) <= 1u;
				}))
				{
					if (item2 != null && item2.InteractionType == EInteractionType.Duty)
					{
						DutyOptions dutyOptions = item2.DutyOptions;
						if (dutyOptions != null)
						{
							_contentFinderConditionIds[dutyOptions.ContentFinderConditionId] = (value.Id, item2);
							if (dutyOptions.LowPriority)
							{
								_lowPriorityContentFinderConditionQuests.Add((dutyOptions.ContentFinderConditionId, value.Id, item.Sequence));
							}
							continue;
						}
					}
					if (item2.InteractionType == EInteractionType.SinglePlayerDuty && _territoryData.TryGetContentFinderConditionForSoloInstance(value.Id, item2.SinglePlayerDutyIndex, out TerritoryData.ContentFinderConditionData contentFinderConditionData))
					{
						_contentFinderConditionIds[contentFinderConditionData.ContentFinderConditionId] = (value.Id, item2);
					}
				}
			}
		}
	}

	private void ValidateQuests()
	{
		_questValidator.Validate(_quests.Values.Where((Quest x) => x.Source != Quest.ESource.Assembly).ToList());
	}

	private void LoadQuestFromStream(string fileName, Stream stream, Quest.ESource source, string directoryName)
	{
		if (source == Quest.ESource.UserDirectory)
		{
			_logger.LogTrace("Loading quest from '{FileName}'", fileName);
		}
		ElementId elementId = ExtractQuestIdFromName(fileName);
		if (elementId == null)
		{
			return;
		}
		JsonNode jsonNode;
		try
		{
			jsonNode = JsonNode.Parse(stream);
		}
		catch (JsonException ex)
		{
			ValidationIssue issue = new ValidationIssue
			{
				ElementId = elementId,
				Sequence = null,
				Step = null,
				Type = EIssueType.InvalidJsonSyntax,
				Severity = EIssueSeverity.Error,
				Description = $"JSON parsing error in file '{fileName}': {ex.Message}\n\nThis usually indicates a syntax error such as:\n\ufffd Missing comma between properties\n\ufffd Unclosed quotes or brackets\n\ufffd Invalid escape sequences\n\ufffd Trailing commas where not allowed\n\nPlease check the JSON syntax around the indicated position."
			};
			_questValidator.AddValidationIssue(issue);
			return;
		}
		_jsonSchemaValidator.Enqueue(elementId, jsonNode);
		bool? flag = null;
		DateTime? dateTime = null;
		bool flag2 = false;
		bool flag3 = false;
		if (jsonNode is JsonObject jsonObject)
		{
			if (jsonObject.TryGetPropertyValue("IsSeasonalQuest", out JsonNode jsonNode2) && jsonNode2 != null)
			{
				try
				{
					flag = jsonNode2.GetValue<bool>();
					flag2 = true;
					_logger.LogDebug("Quest {QuestId}: parsed IsSeasonalQuest override = {IsSeasonal}", elementId, flag);
				}
				catch (Exception exception)
				{
					_logger.LogWarning(exception, "Quest {QuestId}: failed to parse IsSeasonalQuest from JSON", elementId);
				}
			}
			if (jsonObject.TryGetPropertyValue("SeasonalQuestExpiry", out JsonNode jsonNode3) && jsonNode3 != null)
			{
				try
				{
					string value = jsonNode3.GetValue<string>();
					if (!string.IsNullOrEmpty(value))
					{
						dateTime = ((!DateTime.TryParse(value, CultureInfo.InvariantCulture, DateTimeStyles.AdjustToUniversal | DateTimeStyles.AssumeUniversal, out var result)) ? new DateTime?(DateTime.Parse(value, null, DateTimeStyles.AdjustToUniversal | DateTimeStyles.AssumeUniversal)) : new DateTime?(DateTime.SpecifyKind(result, DateTimeKind.Utc)));
						flag3 = true;
						_logger.LogDebug("Quest {QuestId}: parsed SeasonalQuestExpiry override = {Expiry}", elementId, dateTime);
					}
				}
				catch (Exception exception2)
				{
					_logger.LogWarning(exception2, "Quest {QuestId}: failed to parse SeasonalQuestExpiry from JSON", elementId);
				}
			}
		}
		QuestRoot root = jsonNode.Deserialize<QuestRoot>();
		if (!_questData.TryGetQuestInfo(elementId, out IQuestInfo questInfo))
		{
			if (!(elementId is UnlockLinkId unlockLinkId))
			{
				_logger.LogWarning("Not loading unknown quest {QuestId} from project file {FileName}", elementId, fileName);
				return;
			}
			string name;
			try
			{
				string text = fileName.Substring(0, fileName.Length - ".json".Length);
				int num = text.IndexOf('_', StringComparison.Ordinal);
				string text2;
				if (num < 0 || num + 1 >= text.Length)
				{
					text2 = text;
				}
				else
				{
					string text3 = text;
					int num2 = num + 1;
					text2 = text3.Substring(num2, text3.Length - num2);
				}
				name = text2;
			}
			catch
			{
				name = fileName.Substring(0, fileName.Length - ".json".Length);
			}
			name = NormalizeDerivedName(name);
			uint issuerDataId = 0u;
			string patch = null;
			if (jsonNode is JsonObject jsonObject2)
			{
				if (jsonObject2.TryGetPropertyValue("DataId", out JsonNode jsonNode4) && jsonNode4 != null)
				{
					try
					{
						issuerDataId = jsonNode4.GetValue<uint>();
					}
					catch
					{
						issuerDataId = 0u;
					}
				}
				if (jsonObject2.TryGetPropertyValue("Patch", out JsonNode jsonNode5) && jsonNode5 != null)
				{
					try
					{
						patch = jsonNode5.GetValue<string>();
					}
					catch
					{
						patch = null;
					}
				}
			}
			questInfo = new UnlockLinkQuestInfo(unlockLinkId, name, issuerDataId, dateTime, patch);
			_logger.LogDebug("Created UnlockLinkQuestInfo for {QuestId} from project file '{FileName}'", elementId, fileName);
			_questData.AddOrReplaceQuestInfo(questInfo);
		}
		if ((flag2 || flag3) && _questData.TryGetQuestInfo(elementId, out IQuestInfo questInfo2))
		{
			_questData.ApplySeasonalOverride(elementId, flag ?? questInfo2.IsSeasonalQuest, dateTime);
		}
		Quest quest = new Quest
		{
			Id = elementId,
			Root = root,
			Info = questInfo,
			Source = source
		};
		_quests[quest.Id] = quest;
		if (!string.IsNullOrEmpty(directoryName))
		{
			_questFolderNames[elementId] = directoryName;
		}
	}

	private void LoadFromDirectory(DirectoryInfo directory, Quest.ESource source, LogLevel logLevel = LogLevel.Information)
	{
		if (!directory.Exists)
		{
			_logger.LogInformation("Not loading quests from {DirectoryName} (doesn't exist)", directory);
			return;
		}
		if (source == Quest.ESource.UserDirectory)
		{
			_logger.Log(logLevel, "Loading quests from {DirectoryName}", directory);
		}
		FileInfo[] files = directory.GetFiles("*.json");
		foreach (FileInfo fileInfo in files)
		{
			try
			{
				using FileStream stream = new FileStream(fileInfo.FullName, FileMode.Open, FileAccess.Read);
				LoadQuestFromStream(fileInfo.Name, stream, source, directory.Name);
			}
			catch (Exception innerException)
			{
				throw new InvalidDataException("Unable to load file " + fileInfo.FullName, innerException);
			}
		}
		DirectoryInfo[] directories = directory.GetDirectories();
		foreach (DirectoryInfo directory2 in directories)
		{
			LoadFromDirectory(directory2, source, logLevel);
		}
	}

	private static ElementId? ExtractQuestIdFromName(string resourceName)
	{
		string text = resourceName.Substring(0, resourceName.Length - ".json".Length);
		text = text.Substring(text.LastIndexOf('.') + 1);
		if (!text.Contains('_', StringComparison.Ordinal))
		{
			return null;
		}
		return ElementId.FromString(text.Split('_', 2)[0]);
	}

	public bool IsKnownQuest(ElementId questId)
	{
		return _quests.ContainsKey(questId);
	}

	public bool TryGetQuest(ElementId questId, [NotNullWhen(true)] out Quest? quest)
	{
		return _quests.TryGetValue(questId, out quest);
	}

	public List<QuestInfo> GetKnownClassJobQuests(EClassJob classJob, bool includeRoleQuests = true)
	{
		List<QuestInfo> list = _questData.GetClassJobQuests(classJob, includeRoleQuests).ToList();
		if (classJob.AsJob() != classJob)
		{
			list.AddRange(_questData.GetClassJobQuests(classJob.AsJob(), includeRoleQuests));
		}
		return list.Where((QuestInfo x) => IsKnownQuest(x.QuestId)).ToList();
	}

	public bool TryGetDutyByContentFinderConditionId(uint cfcId, [NotNullWhen(true)] out DutyOptions? dutyOptions)
	{
		if (_contentFinderConditionIds.TryGetValue(cfcId, out (ElementId, QuestStep) value))
		{
			dutyOptions = value.Item2.DutyOptions;
			return dutyOptions != null;
		}
		dutyOptions = null;
		return false;
	}

	public IEnumerable<ElementId> GetAllQuestIds()
	{
		return _quests.Keys;
	}

	public bool TryGetQuestFolderName(ElementId questId, [NotNullWhen(true)] out string? folderName)
	{
		return _questFolderNames.TryGetValue(questId, out folderName);
	}

	private static string NormalizeDerivedName(string name)
	{
		if (string.IsNullOrWhiteSpace(name))
		{
			return name ?? string.Empty;
		}
		name = name.Replace("_", " ", StringComparison.OrdinalIgnoreCase);
		name = Regex.Replace(name, "\\s+", " ");
		name = Regex.Replace(name, "\\b(Patch)\\s+(\\d+)\\s+(\\d+)\\b", "$1 $2.$3", RegexOptions.IgnoreCase);
		return name;
	}
}