using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

// takie same jak w bonusach itemow
public enum ItemBonusEnum
{
    None,
    Strenght,
    Enduration,
    Vitality,
    Inteligence,
    Speed
}

public abstract class PlayerPramCalcullator
{
    protected virtual List<EquipmentTypeEnum> EQUIPMENT_TYPE => new List<EquipmentTypeEnum>();
    protected virtual ItemBonusEnum BONUS_TYPE => ItemBonusEnum.None;


    public virtual float Calculate(int itemValue)
    {
        var skillPoints = GetSkillPoints();

        var bonusSum = CalculateBonusByType();

        return Pattern(itemValue, skillPoints, bonusSum);
    }

    public virtual float CalculateWithoutItem()
    {
        var skillPoints = GetSkillPoints();

        var bonusSum = CalculateBonusByType();

        return WithoutItemPattern(skillPoints, bonusSum);
    }

    protected abstract float Pattern(int itemValue, int SkillPoints, int BonusSum);

    protected abstract float WithoutItemPattern(int SkillPoints, int BonusSum);

    public abstract int GetSkillPoints();

    public int CalculateBonusByType()
    {
        var bonusSum = 0;

        if (EquipmentUIManager.Instance.GetList().Count() == 0)
            return bonusSum;

        // Every equipped item by player with mached type
        foreach(var equipmentType in EQUIPMENT_TYPE)
        {
            var machedEquippedItems = EquipmentUIManager
                .Instance
                .GetList()
                .Where(slot => (slot.Value != null && slot.Value.EquipmentType == equipmentType))
                .Select(slot => slot.Value)
                .ToList()
            ;

            foreach(var equippedItem in machedEquippedItems)
            {
                bonusSum += GetBonusFromItem(equippedItem, BONUS_TYPE);
            }
        }

        return bonusSum;
    }

    protected int GetBonusFromItem(EquippableItem item, ItemBonusEnum itemBonus)
    {
        switch(itemBonus)
        {
            case ItemBonusEnum.Strenght:
            {
                return item.StrengthBonus;
            }
            case ItemBonusEnum.Enduration:
            {
                return item.EnduranceBonus;
            }
            case ItemBonusEnum.Vitality:
            {
                return item.VitalityBonus;
            }
            case ItemBonusEnum.Inteligence:
            {
                return item.InteligenceBonus;
            }
            case ItemBonusEnum.Speed:
            {
                return item.SpeedBonus;
            }
            default:
            {
                return 0;
            }
        }
    }
}