using PkmnLib.Dynamic.ScriptHandling;
using PkmnLib.Static;

namespace PkmnLib.Dynamic.Models.Choices;

/// <summary>
/// A choice to use an item
/// </summary>
public interface IItemChoice : ITurnChoice
{
    /// <summary>
    /// The item that is used.
    /// </summary>
    public IItem Item { get; }

    /// <summary>
    /// The side the move is targeted at.
    /// </summary>
    byte? TargetSide { get; }

    /// <summary>
    /// The position the move is targeted at.
    /// </summary>
    byte? TargetPosition { get; }
}

/// <inheritdoc cref="IItemChoice"/>
public class ItemChoice : TurnChoice, IItemChoice
{
    /// <inheritdoc cref="ItemChoice"/>
    public ItemChoice(IPokemon user, IItem item, byte? targetSide, byte? targetPosition) : base(user)
    {
        Item = item;
        TargetSide = targetSide;
        TargetPosition = targetPosition;
    }

    /// <summary>
    /// The item that is used.
    /// </summary>
    public IItem Item { get; }

    /// <inheritdoc />
    public byte? TargetSide { get; }

    /// <inheritdoc />
    public byte? TargetPosition { get; }

    /// <inheritdoc />
    public override int ScriptCount => User.ScriptCount;

    /// <inheritdoc />
    public override void GetOwnScripts(List<IEnumerable<ScriptContainer>> scripts)
    {
    }

    /// <inheritdoc />
    public override void CollectScripts(List<IEnumerable<ScriptContainer>> scripts)
    {
        User.CollectScripts(scripts);
    }

    /// <inheritdoc />
    public override string ToString() =>
        $"ItemChoice: User: {User}, Item: {Item.Name}, TargetSide: {TargetSide}, TargetPosition: {TargetPosition}";

    protected bool Equals(ItemChoice other) =>
        other.User == User && other.Item.Equals(Item) && other.TargetSide == TargetSide &&
        other.TargetPosition == TargetPosition;

    /// <inheritdoc />
    public override bool Equals(object? obj)
    {
        if (obj is null)
            return false;
        if (ReferenceEquals(this, obj))
            return true;
        if (obj is not ItemChoice other)
            return false;
        return Equals(other);
    }

    /// <inheritdoc />
    public override int GetHashCode() =>
        HashCode.Combine(User, Item, TargetSide, TargetPosition);
}