using Godot;
using Mr.BrickAdventures.scripts.interfaces;
using Mr.BrickAdventures.scripts.Resources;

namespace Mr.BrickAdventures.scripts.components;

/// <summary>
/// Base class for all skill components, to reduce boilerplate.
/// </summary>
public abstract partial class SkillComponentBase : Node, ISkill
{
    protected PlayerController Player { get; private set; }
    protected SkillData Data { get; private set; }

    /// <summary>
    /// How far this skill is upgraded, as owned by the Playthrough. Never read from
    /// <see cref="Data"/> — see <see cref="ISkill.Initialize"/>.
    /// </summary>
    protected int Level { get; private set; } = 1;

    public virtual void Initialize(Node owner, SkillData data, int level)
    {
        Player = owner as PlayerController;
        Data = data;
        Level = level;

        if (Player == null)
        {
            GD.PrintErr($"{GetType().Name} must be a child of a PlayerController.");
        }
    }

    /// <summary>
    /// Applies the upgrade matching the level this skill was initialised at, if the authored table
    /// goes that far.
    /// </summary>
    /// <remarks>
    /// Lives here because three components had this guard copy-pasted and one of them — the brick
    /// armor — was missing it, indexing <c>Upgrades[Level - 1]</c> unchecked.
    /// </remarks>
    protected void ApplyCurrentUpgrade()
    {
        if (Data == null || Level < 1 || Data.Upgrades.Count < Level) return;

        ApplyUpgrade(Data.Upgrades[Level - 1]);
    }

    public abstract void Activate();
    public abstract void Deactivate();
    public virtual void ApplyUpgrade(SkillUpgrade upgrade) { }
}