using System.Collections.Generic;
using Godot;
using Views;

public partial class StudentPortrait16Native : Node2D {
	/// <summary>
	///     动画播放器
	/// </summary>
	private AnimationPlayer _animationPlayer;

    private readonly SuitTheme _theme = new();
    
    /// <summary>
    ///     主题ID
    /// </summary>
    public ulong ThemeId {
        get => _theme.GetThemeId();
        set => _theme.ApplyTheme(value);
    }

    // Called when the node enters the scene tree for the first time.
    public override void _Ready() {
        _theme.IsPortrait = true;
        _theme.Use16 = true;
        _animationPlayer = GetNodeOrNull<AnimationPlayer>("AnimationPlayer");
        CacheSprites();

        if (_animationPlayer != null) _animationPlayer.AnimationFinished += OnAnimationFinished;

        PlayAnimation("speak");
    }

    /// <summary>
    ///     缓存精灵节点
    /// </summary>
    private void CacheSprites() {
        // 缓存子节点引用，避免每帧查找
        _theme.CacheComponent(Res.Type.Accessory, GetNode<Sprite2D>("parts/accessory"));
        _theme.CacheComponent(Res.Type.Body, GetNode<Sprite2D>("parts/body"));
        _theme.CacheComponent(Res.Type.Eye, GetNode<Sprite2D>("parts/eye"));
        _theme.CacheComponent(Res.Type.Hair, GetNode<Sprite2D>("parts/hairstyle"));
    }

    /// <summary>
    ///     播放指定动画
    /// </summary>
    /// <param name="animationName">动画名称</param>
    private void PlayAnimation(string animationName) {
        if (_animationPlayer == null) return;

        if (_animationPlayer.CurrentAnimation != animationName) _animationPlayer.Play(animationName);
    }

    /// <summary>
    ///     动画结束回调
    /// </summary>
    /// <param name="animationName">动画名称</param>
    private void OnAnimationFinished(StringName animationName) {
        _animationPlayer?.Play(animationName);
    }

    // Called every frame. 'delta' is the elapsed time since the previous frame.
    public override void _Process(double delta) { }
}