/****************************************************************************
 * 2021.10 DESKTOP-PBQ45G2
 ****************************************************************************/

using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using QFramework;

namespace QFramework
{
    public enum ToolStatus
    {
        Normal,
        Select,
        Hint
    }

    public delegate void ToolElementEventHandle(object sender, ToolElement e);
    public partial class ToolElement : UIElement
    {
        private ToolStatus mtoolStatus;
        public ToolStatus M_ToolStatus
        {
            get
            {
                return mtoolStatus;
            }
            set
            {
                if (mtoolStatus != value)
                {
                    mtoolStatus = value;
                    OnToolStatusChanged();
                }
            }
        }
        public ToolElementEventHandle ToolSelectStatusChanged;

        private Image toolBtnImg;
        public Sprite toolBtnNormailSprite;
        public Sprite toolBtnHighlightSprite;
        public Sprite toolBtnSelectSprite;
        public Sprite toolBtnHintSprite;

        private bool isHintTool = false;
        public bool IsHintTool
        {
            get { return isHintTool; }
            set
            {
                if (isHintTool != value)
                {
                    isHintTool = value;

                    if (isHintTool)
					{
                        if (M_ToolStatus == ToolStatus.Select) return;
                        M_ToolStatus = ToolStatus.Hint;
                    }
                    else if (M_ToolStatus == ToolStatus.Hint)
                    {
                        M_ToolStatus = ToolStatus.Normal;
                    }
                }
            }
        }

        private ToolConfig toolConfig;
        private void Awake()
        {
            toolBtnImg = ToolBtn.GetComponent<Image>();

            ToolBtn.onClick.AddListener(() =>
            {
                ToolBtnClick();
            });
        }

        private void ToolBtnClick()
        {
            if (M_ToolStatus != ToolStatus.Select)
            {
                M_ToolStatus = ToolStatus.Select;
            }
            else if (isHintTool)
            {
                M_ToolStatus = ToolStatus.Hint;
            }
            else
            {
                M_ToolStatus = ToolStatus.Normal;
            }

            if (toolConfig.changedCursor)
            {
                Cursor.SetCursor(M_ToolStatus == ToolStatus.Select ? toolConfig.cursor : null, Vector2.zero, CursorMode.Auto);
            }
        }

        /// <summary>
        /// 初始化工具配置
        /// </summary>
        /// <param name="config"></param>
        public void InitConfig(ToolConfig config)
        {
            toolConfig = config;
            ToolImg.sprite = toolConfig.toolImg;
            if (toolConfig.toolImg == null)
            {
                ToolName.text = toolConfig.toolName;
            }
            else
            {
                ToolName.text = toolConfig.toolImg.name;
            }
        }
        /// <summary>
        /// 清除工具配置
        /// </summary>
        public void ClearConfig()
        {
            ClearState();
            toolConfig = null;
        }

        /// <summary>
        /// 清除按钮状态
        /// </summary>
        public void ClearState()
        {
            IsHintTool = false;
            M_ToolStatus = ToolStatus.Normal;
            if (toolConfig.changedCursor)
            {
                Cursor.SetCursor(M_ToolStatus == ToolStatus.Select ? toolConfig.cursor : null, Vector2.zero, CursorMode.Auto);
            }
        }

        private void OnToolStatusChanged()
        {
            switch (mtoolStatus)
            {
                case ToolStatus.Normal:
                    toolBtnImg.sprite = toolBtnNormailSprite;
                    break;
                case ToolStatus.Select:
                    toolBtnImg.sprite = toolBtnSelectSprite;
                    break;
                case ToolStatus.Hint:
                    toolBtnImg.sprite = toolBtnHintSprite;
                    break;
            }

            ToolSelectStatusChanged?.Invoke(this, this);
        }
    }
}