using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Events;
using System;


public static class ComponentExtersion
{

    public static Component FindComponent(this Component _component, string _type, string _path)
    {
        try
        {
            if (_component == null)
            {
                return null;
            }

            var transform = _component.transform.Find(_path);
            if (transform == null)
            {
                return null;
            }

            return transform.GetComponent(_type);
        }
        catch (Exception ex)
        {
            Debug.Log(ex);
            return null;
        }

    }

    public static T AddMissingComponent<T>(this Component _compoent) where T : Component
    {
        if (_compoent == null)
        {
            return null;
        }

        T component = _compoent.GetComponent<T>();
        if (component == null)
        {
            component = _compoent.gameObject.AddComponent<T>();
        }

        return component;
    }

    public static T AddMissingComponent<T>(this Transform _transform) where T : Component
    {
        if (_transform == null)
        {
            return null;
        }

        T component = _transform.GetComponent<T>();
        if (component == null)
        {
            component = _transform.gameObject.AddComponent<T>();
        }

        return component;
    }

    public static T AddMissingComponent<T>(this GameObject _gameObject) where T : Component
    {
        if (_gameObject == null)
        {
            return null;
        }

        T component = _gameObject.GetComponent<T>();
        if (component == null)
        {
            component = _gameObject.AddComponent<T>();
        }

        return component;
    }


    public static void AddListener(this Button _button, UnityAction _action)
    {
        if (_button == null)
        {
            return;
        }
        _button.onClick.RemoveAllListeners();
        //_button.onClick.RemoveListener(_action);
        _button.onClick.AddListener(_action);
    }


    public static void RemoveAllListeners(this Button _button)
    {
        if (_button == null)
        {
            return;
        }
        _button.onClick.RemoveAllListeners();
    }


    public static void SetListener(this Button button, UnityAction action)
    {
        if (button == null)
        {
            return;
        }

        button.onClick.RemoveAllListeners();
        button.AddListener(action);
    }

    public static void AddListener(this Toggle _toggle, UnityAction<bool> _action)
    {
        if (_toggle == null)
        {
            return;
        }
        _toggle.onValueChanged.RemoveAllListeners();
        _toggle.onValueChanged.AddListener(_action);
    }


    public static void SetListener(this Toggle toggle, UnityAction<bool> action)
    {
        if (toggle == null)
        {
            return;
        }

        toggle.onValueChanged.RemoveAllListeners();
        toggle.onValueChanged.AddListener(action);
    }

    public static void RemoveAllListeners(this Toggle _toggle)
    {
        if (_toggle == null)
        {
            return;
        }
        _toggle.onValueChanged.RemoveAllListeners();
    }


    public static void AddListener(this Slider _slider, UnityAction<float> _action)
    {
        if (_slider == null)
        {
            return;
        }
        _slider.onValueChanged.AddListener(_action);
    }


    public static void SetListener(this Slider slider, UnityAction<float> action)
    {
        if (slider == null)
        {
            return;
        }

        slider.onValueChanged.RemoveAllListeners();
        slider.onValueChanged.AddListener(action);
    }

    public static void RemoveAllListeners(this Slider _slider)
    {
        if (_slider == null)
        {
            return;
        }
        _slider.onValueChanged.RemoveAllListeners();
    }


    public static void AddListener(this InputField _inputField, UnityAction<string> _action)
    {
        if (_inputField == null)
        {
            return;
        }
        _inputField.onValueChanged.AddListener(_action);
    }

    public static void SetListener(this InputField inputField, UnityAction<string> action)
    {
        if (inputField == null)
        {
            return;
        }

        inputField.onValueChanged.RemoveAllListeners();
        inputField.onValueChanged.AddListener(action);
    }


    public static void RemoveAllListeners(this InputField _inputField)
    {
        if (_inputField == null)
        {
            return;
        }
        _inputField.onValueChanged.RemoveAllListeners();
    }

    public static void SetListener(this Dropdown dropdown, UnityAction<int> action)
    {
        if (dropdown == null)
        {
            return;
        }
        dropdown.onValueChanged.RemoveAllListeners();
        dropdown.onValueChanged.AddListener(action);
    }

    // public static void SetEnable(this Button _btn, Text _btnTxt, bool _enable, EnableButtonConfig.EnableButtonType _type =
    //     EnableButtonConfig.EnableButtonType.Default)
    // {
    //     EnableButtonConfig.SetEnable(_btn, _btnTxt, _enable, _type);
    // }


    public static void SetColorful(this Button _btn, Text _btnTxt, bool _colorful, int pattern = 0)
    {
        if (_btn != null)
        {
            var imageEx = _btn.image as ImageEx;
            if (imageEx != null)
            {
                imageEx.gray = !_colorful;
            }
        }
        if (_btnTxt != null)
        {
            switch (pattern)
            {
                case 1:
                    _btnTxt.color = UIHelper.GetUIColor(_colorful ? TextColType.LightWhite : TextColType.White);
                    break;
                case 2:
                    _btnTxt.color = UIHelper.GetUIColor(_colorful ? TextColType.Green : TextColType.White);
                    break;
                default:
                    //false 灰色，true 原色
                    if (!_colorful)
                        _btnTxt.text = UIHelper.AppendColor(TextColType.NavyGray, _btnTxt.text);    //不改变组件颜色，只改变显示颜色
                    else
                        _btnTxt.text = UIHelper.AppendColor(_btnTxt.color, _btnTxt.text);
                    break;
            }
        }
    }


    // 设置按钮是否可点击，且取第一个文本组件置灰或置原色
    // 要先设置文本再调用该函数 因为没有改变文本组件的颜色避免颜色被还原，同理恢复可以不用改变颜色改文字即可
    // 更多功能请使用SetColorful
    public static void SetInteractable(this Button _btn, bool _interactable, Text _btnText = null)
    {
        if (_btn != null)
        {
            _btn.interactable = _interactable;
            var imageEx = _btn.image as ImageEx;
            if (imageEx != null)
            {
                imageEx.gray = !_interactable;
            }
        }
        if (_btnText == null)
            _btnText = _btn.GetComponentInChildren<Text>();
        if (_btnText != null)
        {
            //false 灰色，true 原色
            if (!_interactable)
                _btnText.text = UIHelper.AppendColor(TextColType.NavyGray, _btnText.text);    //不改变组件颜色，只改变显示颜色
            else
                _btnText.text = UIHelper.AppendColor(_btnText.color, UIHelper.RemoveColor(_btnText.text));
        }
    }

    //通过ICON表加载
    public static void SetSprite(this Image _image, string _id)
    {
        if (_image == null)
        {
            return;
        }

        var sprite = UILoader.LoadSprite(_id);
        _image.overrideSprite = sprite;
    }


    public static void SetSprite(this TextImage _textImage, string _id)
    {
        if (_textImage == null)
        {
            return;
        }

        var sprite = UILoader.LoadSprite(_id);
        _textImage.sprite = sprite;
    }

    //通过图片名加载, 如物品表 技能表等，节省在Icon表做多余配置
    public static void SetOrgSprite(this Image _image, string iconName, string folderName = "icon")
    {
        if (_image == null)
        {
            return;
        }

        var sprite = UILoader.LoadSprite(folderName, iconName);
        _image.overrideSprite = sprite;
    }

    public static void SetItemSprite(this Image _image, int itemID)
    {
        if (_image == null)
        {
            return;
        }

        var itemConfig = ItemConfig.Get(itemID);
        if (itemConfig == null)
        {
            return;
        }

        var sprite = UILoader.LoadSprite("icon", itemConfig.IconKey);
        _image.overrideSprite = sprite;
    }

    public static void SetSkillSprite(this Image _image, int skillID)
    {
        if (_image == null)
        {
            return;
        }

        var skillConfig = SkillConfig.Get(skillID);
        if (skillConfig == null)
        {
            return;
        }

        var sprite = UILoader.LoadSprite("SkillIcon", skillConfig.IconName);
        _image.overrideSprite = sprite;
    }

    public static void SetActive(this Component compoent, bool active)
    {
        if (compoent != null)
        {
            if (active && !compoent.gameObject.activeSelf)
            {
                compoent.gameObject.SetActive(true);
            }
            else if (!active && compoent.gameObject.activeSelf)
            {
                compoent.gameObject.SetActive(false);
            }
        }
    }


    public static void SetTexture2D(this RawImage _image, string _id)
    {
        if (_image == null)
        {
            return;
        }

        var texture = UILoader.LoadTexture2D(_id);
        _image.texture = texture;
    }


    public static void SetTexture2DPNG(this RawImage _image, string _id)
    {
        if (_image == null)
        {
            return;
        }

        var texture = UILoader.LoadTexture2DPNG(_id);
        _image.texture = texture;
    }
}