//package www
//This Version support AC1009,the dxf file created can be imported into all the versions of AutoCAD
//AutoCAD DXF File -- Six Sections: Header Classes Tables Blocks Entities Objects
import java.util.*;

import java.util.Date;
import java.text.SimpleDateFormat;

import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.OutputStream;
import java.io.Writer;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Transparency;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;



/**
*@author David Wu<809758521@qq.com>
*@version 0.5
*/
public class FileDXF{
    /**
     * dxf_filename -DXF File name.
     */
	public String dxf_filename;
 
	/**
     * jpg_filename -JPG File name.
     */
	public String jpg_filename;

    /**
     * Section Header.
     */
	SecHeader secHeader;
	
    /**
     * Section Classes.
     */
	SecClasses secClasses;
	
    /**
     * Section Tables.
     */
	SecTables secTables;
	
    /**
     * Section Blocks.
     */
	SecBlocks secBlocks;
	
    /**
     * Section Entities.
     */
	SecEntities secEntities;
	
    /**
     * Section Objects.
     */
	SecObjects secObjects;

    /**
     * code  0 -DXF File END tag.
     */
    public String DXFFileTail = "EOF";

	
    /**
     * Constructor (empty).
     */
    public FileDXF() {
		secHeader = new SecHeader();
		secClasses = new SecClasses();
		secTables = new SecTables();
		secBlocks = new SecBlocks();
		secEntities = new SecEntities();
		secObjects = new SecObjects();
	
    }

    /**
     * Constructor (one_dxf_file)
     * @param one_dxf_file -one DXF File;
     */
    public FileDXF(FileDXF one_dxf_file) {
		this.secHeader = one_dxf_file.secHeader;
		this.secClasses = one_dxf_file.secClasses;
		this.secTables = one_dxf_file.secTables;
		this.secBlocks = one_dxf_file.secBlocks;
		this.secEntities = one_dxf_file.secEntities;
		this.secObjects = one_dxf_file.secObjects;
    }

    /**
     * AddPoint(x_value,y_value)
     * <pre>Add one Point into the Entities' Section
     * @param x_value - Axis X;
     * @param y_value - Axis Y;
 	 *	</pre>
    */
    public void AddPoint(double x_value,double y_value) {
        this.secEntities.entities.add(new EntPoint(x_value,y_value));
    }
	
    /**
     * AddPoint(x_value,y_value,z_value)
     * <pre>Add one Point into the Entities' Section
     * @param x_value - Axis X;
     * @param y_value - Axis Y;
     * @param z_value - Axis Z;
 	 *	</pre>
    */
    public void AddPoint(double x_value,double y_value, double z_value) {
        this.secEntities.entities.add(new EntPoint(x_value,y_value,z_value));
    }
	
    /**
     * AddLine(xs_value,ys_value,xe_value,ye_value)
     * <pre>Add one line into the Entities' Section
     * @param xs_value - Axis X;
     * @param ys_value - Axis Y;
     * @param xe_value - Axis X;
     * @param ye_value - Axis Y;
 	 *	</pre>
    */
    public void AddLine(double xs_value,double ys_value,double xe_value,double ye_value) {
        this.secEntities.entities.add(new EntLine(xs_value,ys_value,xe_value,ye_value));
    }
	
    /**
     * AddLine(xs_value,ys_value,zs_value,xe_value,ye_value,ze_value)
     * <pre>Add one line into the Entities' Section
     * @param xs_value - Axis X;
     * @param ys_value - Axis Y;
     * @param zs_value - Axis Z;
     * @param xe_value - Axis X;
     * @param ye_value - Axis Y;
     * @param ze_value - Axis Z;
 	 *	</pre>
    */
    public void AddLine(double xs_value,double ys_value,double zs_value,double xe_value,double ye_value,double ze_value) {
        this.secEntities.entities.add(new EntLine(xs_value,ys_value,zs_value,xe_value,ye_value,ze_value));
    }

    /**
     * AddCircle(x_value,y_value,radius)
     * <pre>Add one Point into the Entities' Section
     * @param x_value - Axis X;
     * @param y_value - Axis Y;
     * @param radius - radius;
 	 *	</pre>
    */
    public void AddCircle(double x_value,double y_value,double radius) {
        this.secEntities.entities.add(new EntCircle(x_value,y_value,radius));
    }
	
    /**
     * AddCircle(x_value,y_value,z_value, radius)
     * <pre>Add one Point into the Entities' Section
     * @param x_value - Axis X;
     * @param y_value - Axis Y;
     * @param z_value - Axis Z;
     * @param radius - radius;
 	 *	</pre>
    */
    public void AddCircle(double x_value,double y_value, double z_value,double radius) {
        this.secEntities.entities.add(new EntCircle(x_value,y_value,z_value,radius));
    }

    /**
     * AddArc(x_value,y_value,radius)
     * <pre>Add one Point into the Entities' Section
     * @param x_value - Axis X;
     * @param y_value - Axis Y;
     * @param radius - radius;
     * @param start_angle - start_angle;
     * @param end_angle - end_angle;
 	 *	</pre>
    */
    public void AddArc(double x_value,double y_value,double radius,double start_angle,double end_angle) {
        this.secEntities.entities.add(new EntArc(x_value,y_value,radius,start_angle,end_angle));
    }
	
    /**
     * AddArc(x_value,y_value,z_value, radius)
     * <pre>Add one Point into the Entities' Section
     * @param x_value - Axis X;
     * @param y_value - Axis Y;
     * @param z_value - Axis Z;
     * @param radius - radius;
     * @param start_angle - start_angle;
     * @param end_angle - end_angle;
 	 *	</pre>
    */
    public void AddArc(double x_value,double y_value, double z_value,double radius,double start_angle,double end_angle) {
        this.secEntities.entities.add(new EntArc(x_value,y_value,z_value,radius,start_angle,end_angle));
    }

    /**
     * AddText(x_value,y_value,height_value,str))
     * <pre>Add one Point into the Entities' Section
     * @param x_value - Axis X;
     * @param y_value - Axis Y;
     * @param height_value - font's height;
     * @param str - TEXT's string;
 	 *	</pre>
    */
    public void AddText(double x_value,double y_value ,double height_value,String str) {
        this.secEntities.entities.add(new EntText(x_value,y_value,height_value,str));
    }

    /**
     * AddText(x_value,y_value,z_value,height_value,str)
     * <pre>Add one Point into the Entities' Section
     * @param x_value - Axis X;
     * @param y_value - Axis Y;
     * @param z_value - Axis Z;
     * @param height_value - font's height;
     * @param str - TEXT's string;
 	 *	</pre>
    */
    public void AddText(double x_value,double y_value ,double z_value,double height_value,String str) {
        this.secEntities.entities.add(new EntText(x_value,y_value,z_value,height_value,str));
    }

    /**
     * AddPolyline(points)
     * <pre>Add one Point into the Entities' Section
     * @param points - two dimensions array of double, x - points[i][0], y - points[i][1];
 	 *	</pre>
    */
    public void AddPolyline(double[][] points) {
        this.secEntities.entities.add(new EntPolyline(points));
    }
	
	
    /**
     * PrintAll()
     * <pre>Terminal output the description of DXF file
	 * Output example:
 	 *	</pre>
    */
    public void PrintAll() {
        this.secHeader.PrintAll();
        this.secClasses.PrintAll();
        this.secTables.PrintAll();
        this.secBlocks.PrintAll();
        this.secEntities.PrintAll();
        this.secObjects.PrintAll();
    }

    /**
     * GetPairData()
     * @return Map of elements description of DXF file.
	 * <pre>Output example:
	 *	</pre>
     */
	public List<String []> GetPairData(){
		List<String []> params=new ArrayList<>();

        params.addAll(this.secHeader.GetPairData());
        params.addAll(this.secClasses.GetPairData());
        params.addAll(this.secTables.GetPairData());
        params.addAll(this.secBlocks.GetPairData());
        params.addAll(this.secEntities.GetPairData());
        params.addAll(this.secObjects.GetPairData());
		
		params.add(new String[] {"  0",this.DXFFileTail});

        return params;
    }

    /**
     * GetDXFData()
     * @return the dxf data of the DXF file.
	 * <pre>Output example:
	 *	</pre>
     */
    public List<String> GetDXFData() {

		List<String> DXF_STR = new ArrayList<>();

		DXF_STR.addAll(this.secHeader.GetDXFData());
		DXF_STR.addAll(this.secClasses.GetDXFData());
		DXF_STR.addAll(this.secTables.GetDXFData());
		DXF_STR.addAll(this.secBlocks.GetDXFData());
		DXF_STR.addAll(this.secEntities.GetDXFData());
		DXF_STR.addAll(this.secObjects.GetDXFData());
           
        DXF_STR.add("  0");
        DXF_STR.add(this.DXFFileTail);

        return DXF_STR;
    }

    /**
     * toString()
     * @Override the toString method of FileDXF Class.
	 * <pre>Output example:
	 *	</pre>
     */
    public String toString() {
		/* require the jar file --- common-lang3
		List<String> DXF_STR = new ArrayList<>();
		String returnString = new String();
		
        DXF_STR = this.GetDXFData();
		returnString = String.join(",",DXF_STR);
		*/

 		List<String> DXF_STR = new ArrayList<>();
		String returnString = new String();
		
        DXF_STR = this.GetDXFData();
		
        if (null != DXF_STR && DXF_STR.size() > 0) {
            String[] mListArray = DXF_STR.toArray(new String[DXF_STR.size()]);
            for (int i = 0; i < mListArray.length; i++) {
				if (i < mListArray.length - 1) {
					returnString += mListArray[i] + "\r\n";
				} else {
					returnString += mListArray[i];
				}
			}
        }
	
        return returnString;
    }

    /**
     * DXF_WRITER()
     * Write dxf data into a file.
	 * <pre>Output : one file which extension name is dxf
	 *	</pre>
     */
	public void DXF_WRITER() throws Exception{
		
		SimpleDateFormat df = new SimpleDateFormat("yyyy_MM_dd_HH_mm_ss");
		String extension_filename = ".dxf";
		
		if (this.dxf_filename==null){
			this.dxf_filename = "loft_output_" + df.format(new Date()) + "_0" + extension_filename;
		}
		
		File file = new File(this.dxf_filename);

		//If output dxf file has already existed, then create another out dxf file.
		for (int i=1;file.exists();i++){
			file = new File("loft_output_" + df.format(new Date()) + "_" + i + extension_filename);
		}
		/*
		if (file.exists()){
			file = new File("loft_output_" + df.format(new Date()) + "_B.dxf");
			if (file.exists()){
				file = new File("loft_output_" + df.format(new Date()) + "_C.dxf");
				if (file.exists()){
					file = new File("loft_output_" + df.format(new Date()) + "_D.dxf");
				}
			}
		}
		*/
		
		Writer out = new FileWriter(file);
        List<String> dxf_str = this.GetDXFData();
        for (int i  =  0; i < dxf_str.size(); i++) {
            out.write(dxf_str.get(i) + System.getProperty("line.separator")); 
        }
		out.flush();
		out.close();
	}
	
    /**
     * DXF_WRITER(filename)
     * Write dxf data into a file.
     * @param filename - a filename named one DXF file;
	 * <pre>Output : one file which extension name is dxf
	 *	</pre>
     */
	public void DXF_WRITER(String filename) throws Exception{

		this.dxf_filename = filename;

		//File file = new File(this.dxf_filename);

		this.DXF_WRITER();
		
		/*
		Writer out = new FileWriter(file);
        List<String> dxf_str = this.GetDXFData();
        for (int i  =  0; i < dxf_str.size(); i++) {
            out.write(dxf_str.get(i) + System.getProperty("line.separator")); 
        }
		out.flush();
		out.close();
		*/
	}
	
    /**
     * PNG_WRITER()
     * Try to create one image for DXF entities.
	 * <pre>Output : one file which extension name is png
	 *	</pre>
     */
	public void PNG_WRITER() throws Exception{
		SimpleDateFormat df = new SimpleDateFormat("yyyy_MM_dd_HH_mm_ss");
		this.jpg_filename = "cylinder_" + df.format(new Date()) + ".png";

		String s="IJApache Flink 1.7.0 Release Announcement";
		Font font = new Font("SimSong", Font.BOLD, 25);
		BufferedImage bi = new BufferedImage(1200, 800, BufferedImage.TYPE_INT_RGB);
		//Graphics2D g2 = (Graphics2D) bi.getGraphics();
		Graphics2D g2 = bi.createGraphics();
		//bi = g2.getDeviceConfiguration().createCompatibleImage(1200, 800, Transparency.TRANSLUCENT);
		
		//g2.setBackground(Color.WHITE);
		//g2.clearRect(0, 0, 1200, 800);
		g2.setPaint(Color.BLUE);
		g2.setFont(font);
		
		g2.drawString(s, (int) 400, (int) 400);
		g2.drawLine(0, 0, 800, 600);
		
		FileOutputStream fos = null;
		fos = new FileOutputStream(new File(this.jpg_filename));
		ImageIO.write(bi, "png", fos);
		fos.close();
		g2.dispose();
		/*
		File file = new File(this.dxf_filename);
		
		Writer out = new FileWriter(file);
        List<String> dxf_str = this.GetDXFData();
        for (int i  =  0; i < dxf_str.size(); i++) {
            out.write(dxf_str.get(i) + System.getProperty("line.separator")); 
        }
		out.flush();
		out.close();
		*/
	}
	
	
}