package com.qxueyou.scc.school.util;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.geom.Ellipse2D;
import java.awt.image.BufferedImage;
import java.util.List;
import java.util.Map;


/**
 * 学习报告学习时间分布图生成类utils
 * @author xiadehu
 *
 */
public class StudyReportUtils {

	/**
	 * 
	 * @param width 图片宽度
	 * @param height 图片高度
	 * @param startHour1 开始小时1
	 * @param text1 显示文本1
	 * @param startHour2 开始小时2
	 * @param text2 显示文本2
	 * @return BufferedImage 对象
	 */
	public static BufferedImage drawPng(int width,int height,List<Map<String,Object>> times){
		
		//初始化画布
		BufferedImage image = new BufferedImage(width, height,     BufferedImage.TYPE_INT_RGB);
		Graphics2D g2d = image.createGraphics();
		image = g2d.getDeviceConfiguration().createCompatibleImage(width, height, Transparency.TRANSLUCENT);
		g2d.dispose();
		g2d = image.createGraphics();
		 
		//背景
		g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
		g2d.setColor(new Color(248,197,116));
		double centerX = width/2;
		double centerY = height/2;
		double radius = width/2;
		Ellipse2D circle = new Ellipse2D.Double();
		circle.setFrameFromCenter(centerX, centerY, centerX + radius, centerY+ radius);
		g2d.draw(circle);
		g2d.fill(circle);
		
		//绘制时间文字
		for(Map<String,Object> time:times){
			drawStudyTimeArc(width, height, (Integer)time.get("timeFrom"),(Integer)time.get("timeTo"), g2d,new Color(255,255,255));
		}
		
		for(Map<String,Object> time:times){
			drawStudyTimeText(width, height, (Integer)time.get("timeFrom"), (String)time.get("name")+(String)time.get("percent"), g2d,new Color(255,0,0));
		}
		
		g2d.setColor(new Color(255,255,255));
		circle = new Ellipse2D.Double();
		circle.setFrameFromCenter(centerX, centerY, centerX + 6, centerY+ 6);
		g2d.draw(circle);
		g2d.setColor(new Color(248,197,116));
		circle = new Ellipse2D.Double();
		circle.setFrameFromCenter(centerX, centerY, centerX + 5, centerY+ 5);
		g2d.fill(circle);
		
		//释放
		g2d.dispose();
		 
		return image;
	}

	private static void drawStudyTimeArc(int width, int height, int startHour,int endHour,
			 Graphics2D g2d,Color backGroundColor) {
		
		g2d.setColor(backGroundColor);
		g2d.drawArc(0, 0, width, height, -15*(startHour-5), 15*((24+endHour-startHour)%24));
		g2d.fillArc(0, 0, width, height, -15*(startHour-5), 15*((24+endHour-startHour)%24));
		
	}
	
	private static void drawStudyTimeText(int width, int height, int startHour1,
			String text1, Graphics2D g2d,Color textColor) {
		
		double sin = Math.sin(adjustStartIndex(startHour1)*15*Math.PI/180);
		double cos = Math.cos(adjustStartIndex(startHour1)*15*Math.PI/180);
		
		g2d.setColor(textColor);
		float x1 = (float)(adjustRadius(startHour1,width)/2.0d*sin);
		float x = x1+width/2;
		float y1=(float)(adjustRadius(startHour1,width)/2.0d*cos);
		float y = height/2-y1;
		g2d.setFont(new Font("宋体", Font.PLAIN, 12));
		g2d.drawString(text1, x, y);
	}
	
	private static float adjustStartIndex(int startHour){
		if(startHour<=3){
			return startHour;
		}
		if(startHour==5){
			return startHour+0.6f;
		}
		if(startHour==6||startHour==7){
			return startHour+0.9f;
		}
		if(startHour>=8&&startHour<=14){
			return startHour+1f;
		}
		if(startHour==15){
			return startHour+0.5f;
		}
		if(startHour==18){
			return startHour+0.3f;
		}
		if(startHour>=19&&startHour<=23){
			return startHour+0.2f;
		}
		return startHour+0.5f;
	}
	
	private static float adjustRadius(int startHour,int width){
		
		switch(startHour){
		 case 2:return width-70;
		 case 3:return width-70;
		 case 4:return width-100;
		 case 5:return width-100;
		 case 6:return width-100;
		 case 7:return width-100;
		 case 8:return width-80;
		 case 9:return width-70;
		 case 11:return width-30;
		 case 12:return width-70;
		 case 13:return width-30;
		 case 14:return width-10;
		 case 15:return width-10;
		 default :return width-50;
		}
	}
	
	public static void main(String[] args){
	}
}