using System;
using System.Collections.Generic;
using Dalamud.Plugin.Services;
using FFXIVClientStructs.FFXIV.Client.Game;
using Lumina.Excel.Sheets;

namespace LLib.Gear;

public static class MateriaHelper
{
	private const int MaxMateriaSlots = 5;

	public unsafe static List<MeldSlotInfo> GetMeldedMateria(InventoryItem* item)
	{
		List<MeldSlotInfo> list = new List<MeldSlotInfo>(5);
		if (item == null || item->ItemId == 0)
		{
			return list;
		}
		for (int i = 0; i < 5; i++)
		{
			uint num = item->Materia[i];
			if (num != 0)
			{
				list.Add(new MeldSlotInfo(i, num, item->MateriaGrades[i]));
			}
		}
		return list;
	}

	public static int GetNormalSlotCount(IDataManager dataManager, uint itemId)
	{
		if (!dataManager.GetExcelSheet<Item>().TryGetRow(itemId, out var row))
		{
			return 0;
		}
		return row.MateriaSlotCount;
	}

	public static bool CanOvermeld(IDataManager dataManager, uint itemId)
	{
		if (!dataManager.GetExcelSheet<Item>().TryGetRow(itemId, out var row))
		{
			return false;
		}
		return row.IsAdvancedMeldingPermitted;
	}

	public static int GetOvermeldSuccessRate(IDataManager dataManager, byte grade, int overmeldSlot, bool isHq)
	{
		if (overmeldSlot < 0)
		{
			return 0;
		}
		if (!dataManager.GetExcelSheet<MateriaGrade>().TryGetRow(grade, out var row))
		{
			return 0;
		}
		if (isHq)
		{
			if (overmeldSlot >= row.OvermeldHQPercent.Count)
			{
				return 0;
			}
			return row.OvermeldHQPercent[overmeldSlot];
		}
		if (overmeldSlot >= row.OvermeldNQPercent.Count)
		{
			return 0;
		}
		return row.OvermeldNQPercent[overmeldSlot];
	}

	public unsafe static int CountMateriaInInventory(uint materiaItemId)
	{
		InventoryManager* ptr = InventoryManager.Instance();
		if (ptr == null)
		{
			return 0;
		}
		return ptr->GetInventoryItemCount(materiaItemId, isHq: false, checkEquipped: true, checkArmory: true, 0);
	}

	public static int EstimateMateriaNeeded(int successRatePercent, int confidencePercent = 90)
	{
		if (successRatePercent >= 100)
		{
			return 1;
		}
		if (successRatePercent <= 0)
		{
			return int.MaxValue;
		}
		double num = (double)successRatePercent / 100.0;
		double num2 = (double)Math.Clamp(confidencePercent, 0, 99) / 100.0;
		double num3 = Math.Ceiling(Math.Log(1.0 - num2) / Math.Log(1.0 - num));
		if (num3 < 1.0)
		{
			return 1;
		}
		if (num3 > 2147483647.0)
		{
			return int.MaxValue;
		}
		return (int)num3;
	}

	public static uint GetMateriaItemId(IDataManager dataManager, uint materiaRowId, byte grade)
	{
		if (!dataManager.GetExcelSheet<Materia>().TryGetRow(materiaRowId, out var row))
		{
			return 0u;
		}
		if (grade >= row.Item.Count)
		{
			return 0u;
		}
		return row.Item[grade].RowId;
	}
}