using BigFloatNumerics;
using System.Collections.Generic;
using System.Numerics;


public class ValueBase
{
    protected bool isDirty;
    protected List<ValueModifier> valueModifiers;

    public IReadOnlyCollection<ValueModifier> ValueModifiers => valueModifiers;

    public ValueBase()
    {
        isDirty = true;
        valueModifiers = new List<ValueModifier>();
    }

    public void AddModifiers(params ValueModifier[] modifiers)
    {
        isDirty = true;

        for(int i = 0;i < modifiers.Length; i++)
            valueModifiers.OrderInsert(modifiers[i], (a, b) => a.Order.CompareTo(b.Order));
    }

    public bool RemoveModifier(ValueModifier modifier)
    {
        isDirty = valueModifiers.Remove(modifier);
        return isDirty;
    }

    public bool RemoveAllModifiersWithFrom(object from)
    {
        bool isRemoved = false;
        for (int i = valueModifiers.Count - 1; i >= 0; i--)
        {
            if (valueModifiers[i].From == from)
            {
                isDirty = true;
                isRemoved = true;
                valueModifiers.RemoveAt(i);
            }
        }
        return isRemoved;
    }

    public void ClearModifiers()
    {
        isDirty = true;
        valueModifiers.Clear();
    }
}

public class FValue : ValueBase
{
    float defaultValue;

    public float DefaultValue
    {
        get => defaultValue;
        set
        {
            if(defaultValue != value)
            {
                defaultValue = value;
                isDirty = true;
            }
        }
    }

    float modifiedValue;
    public float ModifiedValue
    {
        get
        {
            if(isDirty)
            {
                CalculateValue();
                isDirty = false;
            }

            return modifiedValue;
        }
    }

    public FValue(float defaultValue = 0)
    {
        this.defaultValue = defaultValue;
    }

    public void CalculateValue()
    {
        modifiedValue = defaultValue;

        float appendablePercent = 0;
        for (int i = 0; i < ValueModifiers.Count; i++)
        {
            var mod = valueModifiers[i];

            if(mod.type == ValueModifier.Type.LowestFlat)
            {
                float lowestValue = mod.value;
                for(i++; i < valueModifiers.Count; i++)
                {
                    if (valueModifiers[i].type != ValueModifier.Type.LowestFlat) break;

                    if (valueModifiers[i].value < lowestValue)
                        lowestValue = valueModifiers[i].value;
                }

                modifiedValue += lowestValue;
            }
            else if(mod.type == ValueModifier.Type.GreatestFlat)
            {
                float greatestValue = mod.value;
                for(i++; i < valueModifiers.Count; i++)
                {
                    if (valueModifiers[i].type != ValueModifier.Type.GreatestFlat) break;

                    if (valueModifiers[i].value > greatestValue)
                        greatestValue = valueModifiers[i].value;
                }

                modifiedValue += greatestValue;
            }
            else if(mod.type == ValueModifier.Type.Flat)
            {
                modifiedValue += mod.value;
            }
            else if(mod.type == ValueModifier.Type.AppendablePercent)
            {
                appendablePercent += mod.value;
                if(i == valueModifiers.Count - 1 || valueModifiers[i + 1].type != ValueModifier.Type.AppendablePercent)
                {
                    modifiedValue *= 1 + appendablePercent / 100;
                    appendablePercent = 0;
                }
            }
            else if(mod.type == ValueModifier.Type.Percent)
            {
                modifiedValue *= 1 + mod.value / 100;
            }
            else if(mod.type == ValueModifier.Type.Set)
            {
                modifiedValue = mod.value;
            }
        }
    }
}

public class BIValue : ValueBase
{
    BigInteger defaultValue;

    public BigInteger DefaultValue
    {
        get => defaultValue;
        set
        {
            if (defaultValue != value)
            {
                defaultValue = value;
                isDirty = true;
            }
        }
    }

    BigInteger modifiedValue;
    public BigInteger ModifiedValue
    {
        get
        {
            if (isDirty)
            {
                CalculateValue();
                isDirty = false;
            }

            return modifiedValue;
        }
    }

    public BIValue()
    {
        defaultValue = 0;
    }

    public BIValue(BigInteger defaultValue)
    {
        this.defaultValue = defaultValue;
    }

    public void CalculateValue()
    {
        modifiedValue = defaultValue;

        float appendablePercent = 0;
        for (int i = 0; i < ValueModifiers.Count; i++)
        {
            var mod = valueModifiers[i];

            if (mod.type == ValueModifier.Type.AppendablePercent)
            {
                appendablePercent += mod.value;
                if (i == valueModifiers.Count - 1 || valueModifiers[i + 1].type != ValueModifier.Type.AppendablePercent)
                {
                    modifiedValue = modifiedValue.Multiply(1 + appendablePercent / 100);
                    appendablePercent = 0;
                }
            }
            else if (mod.type == ValueModifier.Type.Percent)
            {
                modifiedValue = modifiedValue.Multiply(1 + mod.value / 100);
            }
        }
    }
}

public class BFValue : ValueBase
{
    BigFloat defaultValue;

    public BigFloat DefaultValue
    {
        get => defaultValue;
        set
        {
            defaultValue = value;
            isDirty = true;
        }
    }

    BigFloat modifiedValue;
    public BigFloat ModifiedValue
    {
        get
        {
            if (isDirty)
            {
                CalculateValue();
                isDirty = false;
            }

            return modifiedValue;
        }
    }

    public BFValue()
    {
        defaultValue = 0;
    }

    public BFValue(BigFloat defaultValue)
    {
        this.defaultValue = defaultValue;
    }

    public void CalculateValue()
    {
        modifiedValue = defaultValue;

        float appendablePercent = 0;
        for (int i = 0; i < ValueModifiers.Count; i++)
        {
            var mod = valueModifiers[i];

            if (mod.type == ValueModifier.Type.LowestFlat)
            {
                float lowestValue = mod.value;
                for (i++; i < valueModifiers.Count; i++)
                {
                    if (valueModifiers[i].type != ValueModifier.Type.LowestFlat) break;

                    if (valueModifiers[i].value < lowestValue)
                        lowestValue = valueModifiers[i].value;
                }

                modifiedValue += lowestValue;
            }
            else if (mod.type == ValueModifier.Type.GreatestFlat)
            {
                float greatestValue = mod.value;
                for (i++; i < valueModifiers.Count; i++)
                {
                    if (valueModifiers[i].type != ValueModifier.Type.GreatestFlat) break;

                    if (valueModifiers[i].value > greatestValue)
                        greatestValue = valueModifiers[i].value;
                }

                modifiedValue += greatestValue;
            }
            else if (mod.type == ValueModifier.Type.Flat)
            {
                modifiedValue += mod.value;
            }
            else if (mod.type == ValueModifier.Type.AppendablePercent)
            {
                appendablePercent += mod.value;
                if (i == valueModifiers.Count - 1 || valueModifiers[i + 1].type != ValueModifier.Type.AppendablePercent)
                {
                    modifiedValue *= 1 + appendablePercent / 100;
                    appendablePercent = 0;
                }
            }
            else if (mod.type == ValueModifier.Type.Percent)
            {
                modifiedValue *= 1 + mod.value / 100;
            }
            else if (mod.type == ValueModifier.Type.Set)
            {
                modifiedValue = mod.value;
            }
        }
    }
}