package goodjava.mail;

import java.util.Map;
import java.util.LinkedHashMap;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
import goodjava.util.GoodUtils;

import java.net.Socket;


public class Message {
	public final Map<String,String> headers = new LinkedHashMap<String,String>();
	public final String content;
	public final String contentType;
	private static Pattern line = Pattern.compile("(?m)^.*$");

	public Message(String content) {
		this(content,"text/plain");
	}

	public Message(String content,String contentType) {
		this.content = content;
		this.contentType = contentType;
	}

	public String toText() {
		StringBuilder sb = new StringBuilder();
		for( Map.Entry<String,String> entry : headers.entrySet() ) {
			String name = entry.getKey();
			if( name.equalsIgnoreCase("bcc") )
				continue;
			String value = entry.getValue();
			sb.append( name ).append( ": " ).append( value ).append( "\r\n" );
		}
		sb.append( "Content-Type: " ).append( contentType ).append( "; charset=\"UTF-8\"\r\n" );
		boolean isAscii = content.matches("\\p{ASCII}*");
		if( !isAscii )
			sb.append( "Content-Transfer-Encoding: base64\r\n" );
		sb.append( "\r\n" );
		if( isAscii ) {
			Matcher m = line.matcher(content);
			while( m.find() ) {
				sb.append(m.group()).append("\r\n");		
			}
		} else {
			String s = GoodUtils.base64Encode(content);
			int n = s.length() - 76;
			int i;
			for( i=0; i<n; i+=76 ) {
				sb.append(s.substring(i,i+76)).append("\r\n");
			}
			sb.append(s.substring(i)).append("\r\n");
		}
		return sb.toString();
	}

	public static void main(String[] args) throws Exception {
		String text = ""
			+"testm 2\n"
			+"x\n"
//			+"产品\n"
			+"rg; ;lrg dsl rgj errlgerrg neskrjg skrg rdsg drskrg sd;gr s;kgr skrg skrg sdg ds fg;ks gegr erg ;sg sd; g;sdr gsklrg sg s;kkrg s;hg ;slrg ;elrg ;reg r;g ;r g;er g;ler g;e g; g;r g rg; srkd fjl kj kklsjrg lsk gskdf;rs gkrj glj grekjs lksjgkjn kjslg rklrg ;rsd; kj drsg akrglk kalrgklrsdnrgkgj;r ;s ns b;n;sn ;njslk r;n\r\n"
		;
		Message msg = new Message(text);
		msg.headers.put("From","smtp@luan.software");
		msg.headers.put("To","fschmidt@gmail.com");
		msg.headers.put("Subject","test");
		Socket socket = new Socket("smtpcorp.com",2525);
		Smtp smtp = new Smtp(socket);
		smtp.authenticate("smtp@luan.software","luanhost");
		smtp.send(msg);
		smtp.close();
		System.out.println("done msg");
	}
}