package com.basic.security.widget;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.Shader;
import android.graphics.SweepGradient;
import android.support.annotation.Nullable;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.DecelerateInterpolator;
import android.view.animation.Transformation;

public class ClusterRoundView extends View implements Animation.AnimationListener {
    private float mSweepAngle = 1;
    private float mOldAngle = 0;
    private float mNewAngle = 0;
    private float mRingWidth = 0;
    private int mRingColor = 0;
    private float mProgressRingWidth = 0;
    private int mProgressRingStartColor = 0;
    private int mProgressRingEndColor = 0;
    private float mRadius = 0;
    private Paint mProgressRingPaint;
    private Shader mProgressRingShader;
    private Paint mRingPaint;
    private Paint mTextPaint;
    private int mTextColor;
    private float mTextSize;
    private int[] arcColors = {};
    private BarAnimation barAnimation;
    private ScaleAnimation scaleAnimation;
    private boolean isAnimation = false;

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

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

    public ClusterRoundView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        this(context, attrs, defStyleAttr, 0);
    }

    public ClusterRoundView(Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr);
        TypedArray typedArray = context.obtainStyledAttributes(attrs, com.basic.security.utils.RUtils.R_styleable_ClusterRoundView);
        mRingWidth = typedArray.getDimension(com.basic.security.utils.RUtils.R_styleable_ClusterRoundView_ring_width, 0);
        mRingColor = typedArray.getColor(com.basic.security.utils.RUtils.R_styleable_ClusterRoundView_ring_color, Color.parseColor("#CBCBCB"));
        mProgressRingWidth = typedArray.getDimension(com.basic.security.utils.RUtils.R_styleable_ClusterRoundView_progress_ring_width, 0);
        mProgressRingStartColor = typedArray.getColor(com.basic.security.utils.RUtils.R_styleable_ClusterRoundView_progress_ring_start_color, Color.parseColor("#086ab5"));
        mProgressRingEndColor = typedArray.getColor(com.basic.security.utils.RUtils.R_styleable_ClusterRoundView_progress_ring_end_color, Color.parseColor("#21cbe2"));
        mRadius = typedArray.getDimension(com.basic.security.utils.RUtils.R_styleable_ClusterRoundView_android_radius, 0);
        mTextColor = typedArray.getColor(com.basic.security.utils.RUtils.R_styleable_ClusterRoundView_text_color, Color.parseColor("#086ab5"));
        mTextSize = typedArray.getDimension(com.basic.security.utils.RUtils.R_styleable_ClusterRoundView_text_size, dp2px(context, 40));
        typedArray.recycle();
        init();
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }

    @Override
    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
        super.onLayout(changed, left, top, right, bottom);
    }

    private void init() {
        mRingPaint = new Paint();
        mRingPaint.setAntiAlias(true);
        mRingPaint.setStyle(Paint.Style.STROKE);
        mRingPaint.setColor(mRingColor);
        arcColors = new int[]{mProgressRingStartColor, mProgressRingEndColor};
        mProgressRingPaint = new Paint();
        mProgressRingPaint.setAntiAlias(true);
        mProgressRingPaint.setStyle(Paint.Style.STROKE);
        mProgressRingPaint.setStrokeWidth(mProgressRingWidth);
        mTextPaint = new Paint();
        mTextPaint.setAntiAlias(true);
        mTextPaint.setStyle(Paint.Style.FILL);
        mTextPaint.setTextAlign(Paint.Align.CENTER);
        mTextPaint.setColor(mTextColor);
        mTextPaint.setTextSize(mTextSize);
        barAnimation = new BarAnimation();
        barAnimation.setAnimationListener(this);
        scaleAnimation = new ScaleAnimation();
        scaleAnimation.setDuration(100);
    }

    public void setAngle(final float newAngle) {
        setAngle(newAngle, true);
    }

    public void setAngle(final float newAngle, boolean isScale) {
        if (!isAnimation) {
            if (isScale) {
                scaleAnimation.setAnimationListener(new Animation.AnimationListener() {
                    public void onAnimationStart(Animation animation) {
                    }

                    public void onAnimationEnd(Animation animation) {
                        changeAngle(newAngle);
                    }

                    public void onAnimationRepeat(Animation animation) {
                    }
                });
                startAnimation(scaleAnimation);
            } else {
                changeAngle(newAngle);
            }
        }
    }

    private void changeAngle(float newAngle) {
        mOldAngle = mNewAngle;
        mNewAngle = newAngle;
        int duration = (int) (Math.abs(mNewAngle - mOldAngle) * 15);
        barAnimation.setDuration(duration);
        barAnimation.setInterpolator(new DecelerateInterpolator());
        startAnimation(barAnimation);
    }

    @SuppressLint("DrawAllocation")
    public void onDraw(Canvas canvas) {
        float x = getWidth() / 2;
        float y = getHeight() / 2;
        float radius = mRadius == 0 ? Math.min(getWidth() / 2, getHeight() / 2) : mRadius;
        float ringWidth = mRingWidth == 0 ? radius / 5 : mRingWidth;
        radius = radius - ringWidth / 2;
        mRingPaint.setStrokeWidth(ringWidth);
        canvas.drawCircle(x, y, radius, mRingPaint);
        if (mProgressRingShader == null) {
            mProgressRingShader = new SweepGradient(x, y, arcColors, null);
            mProgressRingPaint.setShader(mProgressRingShader);
        }
        float progressRingWidth = mProgressRingWidth == 0 ? ringWidth : mProgressRingWidth;
        mProgressRingPaint.setStrokeWidth(progressRingWidth);
        float left = x - radius;
        float top = y - radius;
        float right = x + radius;
        float bottom = y + radius;
        double radian = radianToAngle(radius);
        double degrees = Math.toDegrees(-2 * Math.PI / 360 * (90 + radian));
        canvas.save();
        canvas.rotate((float) degrees, x, y);
        canvas.drawArc(new RectF(left, top, right, bottom), (float) radian, mOldAngle + mSweepAngle, false, mProgressRingPaint);
        canvas.restore();
        int percentage = (int) ((mOldAngle + mSweepAngle) / 360 * 100);
        float sizeHeight = getFontHeight();
        canvas.drawText(percentage + "%", x, y + sizeHeight / 2, mTextPaint);
        super.onDraw(canvas);
    }

    public float getFontHeight() {
        Paint.FontMetrics fm = mTextPaint.getFontMetrics();
        return fm.descent - fm.ascent;
    }

    private double radianToAngle(float radios) {
        double aa = mProgressRingWidth / 2 / radios;
        double asin = Math.asin(aa);
        return Math.toDegrees(asin);
    }

    public void onAnimationStart(Animation animation) {
        isAnimation = true;
    }

    public void onAnimationEnd(Animation animation) {
        isAnimation = false;
    }

    public void onAnimationRepeat(Animation animation) {
    }

    private int dp2px(Context context, float dpVal) {
        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
                dpVal, context.getResources().getDisplayMetrics());
    }

    public class ScaleAnimation extends Animation {
        private int centerX;
        private int centerY;

        public ScaleAnimation() {
        }

        public void initialize(int width, int height, int parentWidth,
                               int parentHeight) {
            super.initialize(width, height, parentWidth, parentHeight);
            centerX = width / 2;
            centerY = height / 2;
        }

        protected void applyTransformation(float interpolatedTime, Transformation t) {
            super.applyTransformation(interpolatedTime, t);
            if (interpolatedTime < 0.25f) {
                float ss = interpolatedTime * 0.4f + 1f;
                Matrix matrix = t.getMatrix();
                matrix.setScale(ss, ss, centerX, centerY);
            } else if (interpolatedTime >= 0.25f && interpolatedTime < 0.5f) {
                float ss = (0.5f - interpolatedTime) * 0.4f + 1f;
                Matrix matrix = t.getMatrix();
                matrix.setScale(ss, ss, centerX, centerY);
            } else if (interpolatedTime >= 0.5f && interpolatedTime < 0.75f) {
                float ss = (0.75f - interpolatedTime) * 0.4f + 0.9f;
                Matrix matrix = t.getMatrix();
                matrix.setScale(ss, ss, centerX, centerY);
            } else if (interpolatedTime >= 0.75f && interpolatedTime <= 1f) {
                float ss = interpolatedTime * 0.4f + 0.6f;
                Matrix matrix = t.getMatrix();
                matrix.setScale(ss, ss, centerX, centerY);
            }
        }
    }

    public class BarAnimation extends Animation {
        public BarAnimation() {
        }

        protected void applyTransformation(float interpolatedTime,
                                           Transformation t) {
            super.applyTransformation(interpolatedTime, t);
            if (mNewAngle - mOldAngle >= 0) {
                mSweepAngle = interpolatedTime * (mNewAngle - mOldAngle);
            } else {
                mSweepAngle = interpolatedTime * (mNewAngle - mOldAngle);
            }
            postInvalidate();
        }
    }
}