package com.shunzhi.parent.views;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Paint.Cap;
import android.graphics.Paint.Style;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.RectF;
import android.graphics.SweepGradient;
import android.util.AttributeSet;
import android.view.View;

/***
 * 自定义圆弧进度条
 *
 * @author liujing
 */
public class ProgressView extends View {

    //分段颜色
    private static final int[] SECTION_COLORS = {Color.RED, Color.YELLOW,Color.GREEN};
    private static final String[] ALARM_LEVEL = {"", "", "", ""};
    private float maxCount;
    private float currentCount;
    private int score;
    private String crrentLevel;
    private Paint mPaint;
    private Paint mTextPaint;
    private int mWidth, mHeight;

    public ProgressView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(context);
    }

    public ProgressView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public ProgressView(Context context) {
        this(context, null);
    }

    private void init(Context context) {
        mPaint = new Paint();
        mTextPaint = new Paint();
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        initPaint();
        RectF rectBlackBg = new RectF(20, 20, mWidth - 20, mHeight - 20);
        canvas.drawArc(rectBlackBg, 0, 270, false, mPaint);
        mPaint.setColor(getColor(score));
        canvas.drawText(score + "%", mWidth / 2, mHeight / 2, mTextPaint);
        mTextPaint.setTextSize(40);

        SweepGradient sweepGradient = new SweepGradient(mWidth / 2, mWidth / 2, SECTION_COLORS, null);
        Matrix matrix = new Matrix();
        matrix.setRotate(120, this.mWidth / 2, mWidth / 2);
        sweepGradient.setLocalMatrix(matrix);
        float section = currentCount / maxCount;
        mPaint.setShader(sweepGradient);

        mPaint.setShader(sweepGradient);
        mPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_ATOP));
        mPaint.setStyle(Style.STROKE);
        canvas.drawArc(rectBlackBg, 135, section * 270, false, mPaint);
    }


    private void initPaint() {
        mPaint.setAntiAlias(true);
        mPaint.setStrokeWidth((float) 40.0);
        mPaint.setStyle(Style.STROKE);
        mPaint.setStrokeCap(Cap.ROUND);
        mPaint.setColor(Color.TRANSPARENT);
        mTextPaint.setAntiAlias(true);
        mTextPaint.setStrokeWidth((float) 3.0);
        mTextPaint.setTextAlign(Paint.Align.CENTER);
        mTextPaint.setTextSize(50);
        mTextPaint.setColor(Color.BLACK);

    }

    private int dipToPx(int dip) {
        float scale = getContext().getResources().getDisplayMetrics().density;
        return (int) (dip * scale + 0.5f * (dip >= 0 ? 1 : -1));
    }

    public int getScore() {
        return score;
    }

    public String getCrrentLevel() {
        return crrentLevel;
    }

    public void setCrrentLevel(String crrentLevel) {
        this.crrentLevel = crrentLevel;
    }

    public float getMaxCount() {
        return maxCount;
    }

    public float getCurrentCount() {
        return currentCount;
    }

    public void setScore(int score) {
        this.score = score;
        if (score == 100) {
            this.crrentLevel = ALARM_LEVEL[0];
        } else if (score >= 70 && score < 100) {
            this.crrentLevel = ALARM_LEVEL[1];
        } else if (score >= 30 && score < 70) {
            this.crrentLevel = ALARM_LEVEL[2];
        } else {
            this.crrentLevel = ALARM_LEVEL[3];
        }
        invalidate();
    }
    public int getColor(int score) {
        this.score = score;
      if (score > 60 && score <= 100) {
           return  SECTION_COLORS[2];
        } else if (score >= 30 && score <= 60) {
          return SECTION_COLORS[1];
        } else {
          return SECTION_COLORS[0];
        }

    }

    /***
     * 设置最大的进度值
     *
     * @param maxCount
     */
    public void setMaxCount(float maxCount) {
        this.maxCount = maxCount;
    }

    /***
     * 设置当前的进度值
     *
     * @param currentCount
     */
    public void setCurrentCount(float currentCount) {
        this.currentCount = currentCount > maxCount ? maxCount : currentCount;
        invalidate();
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec);
        int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec);
        int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec);
        int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec);
        if (widthSpecMode == MeasureSpec.EXACTLY
                || widthSpecMode == MeasureSpec.AT_MOST) {
            mWidth = widthSpecSize;
        } else {
            mWidth = 0;
        }
        if (heightSpecMode == MeasureSpec.AT_MOST
                || heightSpecMode == MeasureSpec.UNSPECIFIED) {
            mHeight = dipToPx(15);
        } else {
            mHeight = heightSpecSize;
        }
        setMeasuredDimension(mWidth, mHeight);
    }

    }