using System;
using System.Collections.Generic;
using System.Linq;
using Dalamud.Plugin.Services;
using Lumina.Excel.Sheets;
using Microsoft.Extensions.Logging;
using Questionable.Model;
using Questionable.Model.Questing;

namespace Questionable.Data;

internal sealed class JournalData
{
	internal sealed class Genre
	{
		public uint Id { get; }

		public string Name { get; }

		public uint CategoryId { get; }

		public List<IQuestInfo> Quests { get; }

		public bool IsUnderOtherQuests { get; set; }

		public Genre(JournalGenre journalGenre, List<IQuestInfo> quests)
		{
			Id = journalGenre.RowId;
			Name = journalGenre.Name.ToString();
			CategoryId = journalGenre.JournalCategory.RowId;
			Quests = quests;
			IsUnderOtherQuests = false;
		}

		public Genre(uint id, string name, uint categoryId, List<IQuestInfo> quests)
		{
			Id = id;
			Name = name;
			CategoryId = categoryId;
			Quests = quests;
			IsUnderOtherQuests = false;
		}

		public Genre(uint id, string name, uint categoryId, List<IQuestInfo> quests, bool isUnderOtherQuests = false)
		{
			Id = id;
			Name = name;
			CategoryId = categoryId;
			Quests = quests;
			IsUnderOtherQuests = isUnderOtherQuests;
		}
	}

	internal sealed class Category
	{
		public uint Id { get; } = journalCategory.RowId;

		public string Name { get; } = journalCategory.Name.ToString();

		public uint SectionId { get; } = journalCategory.JournalSection.RowId;

		public IReadOnlyList<Genre> Genres { get; }

		public Category(JournalCategory journalCategory, IReadOnlyList<Genre> genres)
		{
			Genres = genres;
			base._002Ector();
		}
	}

	internal sealed class Section
	{
		public uint Id { get; } = journalSection.RowId;

		public string Name { get; } = journalSection.Name.ToString();

		public IReadOnlyList<Category> Categories { get; }

		public Section(JournalSection journalSection, IReadOnlyList<Category> categories)
		{
			Categories = categories;
			base._002Ector();
		}
	}

	private readonly ILogger<JournalData> _logger;

	public List<Genre> Genres { get; }

	public List<Category> Categories { get; }

	public List<Section> Sections { get; }

	public int? OtherQuestsSectionRowId { get; private set; }

	public JournalData(IDataManager dataManager, QuestData questData, ILogger<JournalData> logger)
	{
		JournalData journalData = this;
		_logger = logger;
		List<Genre> list = (from x in dataManager.GetExcelSheet<JournalGenre>()
			where x.RowId != 0 && x.Icon > 0
			select new Genre(x, questData.GetAllByJournalGenre(x.RowId))).ToList();
		QuestRedo row = dataManager.GetExcelSheet<QuestRedo>().GetRow(1u);
		QuestRedo row2 = dataManager.GetExcelSheet<QuestRedo>().GetRow(2u);
		QuestRedo row3 = dataManager.GetExcelSheet<QuestRedo>().GetRow(3u);
		Genre genreLimsa = new Genre(4294967292u, "Starting in Limsa Lominsa", 1u, (from x in new uint[2] { 108u, 109u }.Concat(row.QuestRedoParam.Select((QuestRedo.QuestRedoParamStruct x) => x.Quest.RowId))
			where x != 0
			select questData.GetQuestInfo(QuestId.FromRowId(x))).ToList());
		Genre genreGridania = new Genre(4294967293u, "Starting in Gridania", 1u, (from x in new uint[3] { 85u, 123u, 124u }.Concat(row2.QuestRedoParam.Select((QuestRedo.QuestRedoParamStruct x) => x.Quest.RowId))
			where x != 0
			select questData.GetQuestInfo(QuestId.FromRowId(x))).ToList());
		Genre genreUldah = new Genre(4294967294u, "Starting in Ul'dah", 1u, (from x in new uint[3] { 568u, 569u, 570u }.Concat(row3.QuestRedoParam.Select((QuestRedo.QuestRedoParamStruct x) => x.Quest.RowId))
			where x != 0
			select questData.GetQuestInfo(QuestId.FromRowId(x))).ToList());
		list.InsertRange(0, new Genre[3] { genreLimsa, genreGridania, genreUldah });
		list.Single((Genre x) => x.Id == 1).Quests.RemoveAll((IQuestInfo x) => genreLimsa.Quests.Contains(x) || genreGridania.Quests.Contains(x) || genreUldah.Quests.Contains(x));
		Genres = list.ToList();
		Categories = (from x in dataManager.GetExcelSheet<JournalCategory>()
			where x.RowId != 0
			select new Category(x, journalData.Genres.Where((Genre y) => y.CategoryId == x.RowId).ToList())).ToList();
		Sections = (from x in dataManager.GetExcelSheet<JournalSection>()
			select new Section(x, journalData.Categories.Where((Category y) => y.SectionId == x.RowId).ToList())).ToList();
		_logger.LogDebug("Resolving OtherQuests section id...");
		OtherQuestsSectionRowId = GetOtherQuestsSectionRowId(dataManager);
		_logger.LogDebug("Resolved OtherQuestsSectionRowId = {Id}", OtherQuestsSectionRowId);
		int? otherQuestsSectionRowId = OtherQuestsSectionRowId;
		if (otherQuestsSectionRowId.HasValue)
		{
			int valueOrDefault = otherQuestsSectionRowId.GetValueOrDefault();
			uint otherIdU = (uint)valueOrDefault;
			Section section = Sections.FirstOrDefault((Section s) => s.Id == otherIdU);
			if (section != null)
			{
				int num = 0;
				foreach (Category category in section.Categories)
				{
					foreach (Genre genre in category.Genres)
					{
						genre.IsUnderOtherQuests = true;
						num++;
					}
				}
				_logger.LogInformation("Marked {Count} genres as under 'Other Quests' (section id {Id})", num, valueOrDefault);
			}
			else
			{
				_logger.LogWarning("OtherQuestsSectionRowId {Id} found but matching Section not present in constructed Sections", valueOrDefault);
			}
		}
		else
		{
			_logger.LogDebug("OtherQuestsSectionRowId not found - falling back to localized name lookup when necessary");
		}
	}

	private int? GetOtherQuestsSectionRowId(IDataManager dataManager)
	{
		JournalSection journalSection = dataManager.GetExcelSheet<JournalSection>().FirstOrDefault((JournalSection s) => s.Name.ToString() == "Other Quests");
		int? result = ((journalSection.RowId != 0) ? new int?((int)journalSection.RowId) : ((int?)null));
		if (!result.HasValue)
		{
			Section section = Sections.FirstOrDefault((Section s) => s.Name.Equals("Other Quests", StringComparison.OrdinalIgnoreCase));
			if (section != null)
			{
				result = (int)section.Id;
			}
		}
		return result;
	}
}