package com.application.zhangshi_app_android.widget;

import android.content.Context;
import android.graphics.Path;
import android.graphics.RectF;
import android.view.View;
import android.widget.ImageView;

import com.application.zhangshi_app_android.R;
import com.application.zhangshi_app_android.bean.HomeRootBean;

import java.util.List;

/**
 * @author Ljj
 * @date 2023.08.13. 7:35
 * @desc 单亲节点
 */
public class SimpleNode extends Node{
    private View memberItemView;//成员view
    private ImageView expandIconView;//展开按钮


    public SimpleNode(Context context,HomeRootBean member) {
        super(context,member);

        initView();

        if (member.getIdentity() > 1 && member.getChildList() != null && member.getChildList().size() > 0){
            //非 第一代 且 有子代, 节点宽度 = view宽度 + 前后路径长度 + 展开按钮宽度
            width = pathLength + memberItemView.getMeasuredWidth() + pathLength  + expandIconView.getMeasuredWidth();
        }else if (member.getIdentity() > 1 && (member.getChildList() == null || member.getChildList().size() == 0)) {
            //非 第一代 且 无子代, 节点宽度 = view宽度 + 前路径长度
            width = getItemViewWidth() + pathLength;
        }else if (member.getIdentity() == 1 && member.getChildList() != null && member.getChildList().size() > 0) {
            //第一代 且 有子代, 节点宽度 = view宽度 + 后路径长度 + 展开按钮宽度
            width = getItemViewWidth() + pathLength + getExpandIconWidth();
        }else if (member.getIdentity() == 1 && (member.getChildList() == null || member.getChildList().size() == 0)) {
            //第一代 且 无子代, 节点宽度 = view宽度
            width = getItemViewWidth();
        }
        //单亲节点 高度 = view高度
        height = getItemViewHeight();
    }

    private void initView() {
        memberItemView = createItemView(member,true);
        expandIconView = createExpandIconView();
        viewList.add(memberItemView);
        viewList.add(expandIconView);

        if (isExpand){
            expandIconView.setBackgroundResource(R.drawable.ic_collapse);
        }else {
            expandIconView.setBackgroundResource(R.drawable.ic_expand);
        }
        expandIconView.setOnClickListener(v -> {
            if (isExpand){
                expandIconView.setBackgroundResource(R.drawable.ic_expand);
                for (Node child : children) {
                    child.setVisible(false);
                }
                isExpand = false;
            }else {
                expandIconView.setBackgroundResource(R.drawable.ic_collapse);
                for (Node child : children) {
                    child.setVisible(true);
                }
                isExpand = true;
            }
        });
    }

    @Override
    protected void setViewPosition(int x, int centerY) {
        left = x;
        right = left + width;
        this.centerY = centerY;
        top = centerY - height/2;
        bottom = centerY + height/2;

        if (member.getIdentity() > 1){//非 第一代 才有前置连线
            viewLeft = left + pathLength;
        }else {
            viewLeft = left;
        }
        memberItemView.setX(viewLeft);
        memberItemView.setY(centerY - memberItemView.getMeasuredHeight()/2f);
        viewRight = viewLeft + memberItemView.getMeasuredWidth();
        viewTop = (int) memberItemView.getY();
        viewBottom = (int) (memberItemView.getY() + memberItemView.getMeasuredHeight());

        expandIconView.setX(viewRight + pathLength);
        expandIconView.setY(centerY - expandIconView.getMeasuredHeight()/2f);

        right = (int) (expandIconView.getMeasuredWidth() + expandIconView.getX());

        setPath();
    }

    private void setPath() {
        prePathList.clear();
        nextPathList.clear();

        if (member.getChildList() != null && member.getChildList().size() > 0){//有子节点，才有后置连线，才有展开按钮
            expandIconView.setVisibility(View.VISIBLE);
            Path path = new Path();
            path.moveTo(viewRight, centerY);
            path.lineTo(expandIconView.getX(), centerY);
            nextPathList.add(path);
        }else {
            expandIconView.setVisibility(View.GONE);
            viewList.remove(expandIconView);
            right = viewRight;
        }
        if (member.getIdentity() > 1){//非 第一代 才有前置连线
            Path path = new Path();
            path.moveTo(viewLeft, centerY);
            path.lineTo(left, centerY);
            prePathList.add(path);
        }
    }

    //设置分叉点Y坐标集合
    public void setForkYList(List<Integer> yList){
        if (yList == null || yList.size() < 2){
            return;
        }
        forkPathList.clear();

        //取出最大和最小
        int rBottom = 0;
        int rTop = 0;
        for (int i = 0; i < yList.size(); i++) {
            if (i == 0){
                rTop = yList.get(i);
                rBottom = yList.get(i);
            }else {
                if (yList.get(i) > rBottom){
                    rBottom = yList.get(i);
                }
                if (yList.get(i) < rTop){
                    rTop = yList.get(i);
                }
            }
        }
        yList.remove((Integer) rTop);
        yList.remove((Integer) rBottom);

        float rLeft = right + pathLength;
        float rRight = rLeft + pathLength;
        Path path = new Path();
        //右上角
        path.moveTo(rRight, rTop);
        // ---
        path.lineTo(rLeft + cornerRadius, rTop);
        // 添加圆弧路径，左上角的圆角
        path.arcTo(new RectF(rLeft, rTop, rLeft+2*cornerRadius, rTop+2*cornerRadius), 270, -90, false);
        // ----
        // |
        // |
        path.lineTo(rLeft, rBottom - cornerRadius);
        // 添加圆弧路径，左下角的圆角
        path.arcTo(new RectF(rLeft, rBottom - 2 * cornerRadius, rLeft + 2 * cornerRadius, rBottom), 180, -90, false);
        // ----
        // |
        // |
        // ----
        path.lineTo(rRight, rBottom);
        //移到左中间
        path.moveTo(rLeft, centerY);
        //    ----
        // ___|
        //    |
        //    ----
        path.lineTo(rLeft - pathLength, centerY);
        for (Integer y : yList) {
            path.moveTo(rLeft, y);
            path.lineTo(rRight, y);
        }
        forkPathList.add(path);
    }

    @Override
    public int getItemViewWidth() {
        if (memberItemView != null){
            return memberItemView.getMeasuredWidth();
        }
        return 0;
    }

    @Override
    public int getItemViewHeight() {
        if (memberItemView != null){
            return memberItemView.getMeasuredHeight();
        }
        return 0;
    }
}