package com.sobot.chat.utils;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.text.Html;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.TextUtils;
import android.text.style.URLSpan;
import android.widget.TextView;

import com.sobot.chat.core.HttpUtils;
import com.sobot.chat.core.HttpUtils.FileCallBack;
import com.sobot.chat.widget.LinkMovementClickMethod;
import com.sobot.chat.widget.emoji.InputHelper;
import com.sobot.chat.widget.rich.EmailSpan;
import com.sobot.chat.widget.rich.MyURLSpan;
import com.sobot.chat.widget.rich.PhoneSpan;

import java.io.File;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class HtmlTools {

	private static HtmlTools instance;

	public static HtmlTools getInstance(Context context) {
		if (instance == null) {
			instance = new HtmlTools(context.getApplicationContext());
		}
		return instance;
	}
	/**
	 * Regular expression to match all IANA top-level domains for WEB_URL. List
	 * accurate as of 2011/07/18. List taken from:
	 * http://data.iana.org/TLD/tlds-alpha-by-domain.txt This pattern is
	 * auto-generated by frameworks/ex/common/tools/make-iana-tld-pattern.py
	 */
	public static final String TOP_LEVEL_DOMAIN_STR_FOR_WEB_URL = "(?:"
			+ "(?:aero|arpa|asia|a[cdefgilmnoqrstuwxz])"
			+ "|(?:biz|b[abdefghijmnorstvwyz])"
			+ "|(?:cat|com|coop|c[acdfghiklmnoruvxyz])"
			+ "|d[ejkmoz]"
			+ "|(?:edu|e[cegrstu])"
			+ "|f[ijkmor]"
			+ "|(?:gov|g[abdefghilmnpqrstuwy])"
			+ "|h[kmnrtu]"
			+ "|(?:info|int|i[delmnoqrst])"
			+ "|(?:jobs|j[emop])"
			+ "|k[eghimnprwyz]"
			+ "|l[abcikrstuvy]"
			+ "|(?:mil|mobi|museum|m[acdeghklmnopqrstuvwxyz])"
			+ "|(?:name|net|n[acefgilopruz])"
			+ "|(?:org|om)"
			+ "|(?:pro|p[aefghklmnrstwy])"
			+ "|qa"
			+ "|r[eosuw]"
			+ "|s[abcdeghijklmnortuvyz]"
			+ "|(?:tel|travel|t[cdfghjklmnoprtvwz])"
			+ "|u[agksyz]"
			+ "|v[aceginu]"
			+ "|w[fs]"
			+ "|(?:\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae|\u0438\u0441\u043f\u044b\u0442\u0430\u043d\u0438\u0435|\u0440\u0444|\u0441\u0440\u0431|\u05d8\u05e2\u05e1\u05d8|\u0622\u0632\u0645\u0627\u06cc\u0634\u06cc|\u0625\u062e\u062a\u0628\u0627\u0631|\u0627\u0644\u0627\u0631\u062f\u0646|\u0627\u0644\u062c\u0632\u0627\u0626\u0631|\u0627\u0644\u0633\u0639\u0648\u062f\u064a\u0629|\u0627\u0644\u0645\u063a\u0631\u0628|\u0627\u0645\u0627\u0631\u0627\u062a|\u0628\u06be\u0627\u0631\u062a|\u062a\u0648\u0646\u0633|\u0633\u0648\u0631\u064a\u0629|\u0641\u0644\u0633\u0637\u064a\u0646|\u0642\u0637\u0631|\u0645\u0635\u0631|\u092a\u0930\u0940\u0915\u094d\u0937\u093e|\u092d\u093e\u0930\u0924|\u09ad\u09be\u09b0\u09a4|\u0a2d\u0a3e\u0a30\u0a24|\u0aad\u0abe\u0ab0\u0aa4|\u0b87\u0ba8\u0bcd\u0ba4\u0bbf\u0baf\u0bbe|\u0b87\u0bb2\u0b99\u0bcd\u0b95\u0bc8|\u0b9a\u0bbf\u0b99\u0bcd\u0b95\u0baa\u0bcd\u0baa\u0bc2\u0bb0\u0bcd|\u0baa\u0bb0\u0bbf\u0b9f\u0bcd\u0b9a\u0bc8|\u0c2d\u0c3e\u0c30\u0c24\u0c4d|\u0dbd\u0d82\u0d9a\u0dcf|\u0e44\u0e17\u0e22|\u30c6\u30b9\u30c8|\u4e2d\u56fd|\u4e2d\u570b|\u53f0\u6e7e|\u53f0\u7063|\u65b0\u52a0\u5761|\u6d4b\u8bd5|\u6e2c\u8a66|\u9999\u6e2f|\ud14c\uc2a4\ud2b8|\ud55c\uad6d|xn\\-\\-0zwm56d|xn\\-\\-11b5bs3a9aj6g|xn\\-\\-3e0b707e|xn\\-\\-45brj9c|xn\\-\\-80akhbyknj4f|xn\\-\\-90a3ac|xn\\-\\-9t4b11yi5a|xn\\-\\-clchc0ea0b2g2a9gcd|xn\\-\\-deba0ad|xn\\-\\-fiqs8s|xn\\-\\-fiqz9s|xn\\-\\-fpcrj9c3d|xn\\-\\-fzc2c9e2c|xn\\-\\-g6w251d|xn\\-\\-gecrj9c|xn\\-\\-h2brj9c|xn\\-\\-hgbk6aj7f53bba|xn\\-\\-hlcj6aya9esc7a|xn\\-\\-j6w193g|xn\\-\\-jxalpdlp|xn\\-\\-kgbechtv|xn\\-\\-kprw13d|xn\\-\\-kpry57d|xn\\-\\-lgbbat1ad8j|xn\\-\\-mgbaam7a8h|xn\\-\\-mgbayh7gpa|xn\\-\\-mgbbh1a71e|xn\\-\\-mgbc0a9azcg|xn\\-\\-mgberp4a5d4ar|xn\\-\\-o3cw4h|xn\\-\\-ogbpf8fl|xn\\-\\-p1ai|xn\\-\\-pgbs0dh|xn\\-\\-s9brj9c|xn\\-\\-wgbh1c|xn\\-\\-wgbl6a|xn\\-\\-xkc2al3hye2a|xn\\-\\-xkc2dl3a5ee0h|xn\\-\\-yfro4i67o|xn\\-\\-ygbi2ammx|xn\\-\\-zckzah|xxx)"
			+ "|y[et]" + "|z[amw]))";
	/**
	 * Good characters for Internationalized Resource Identifiers (IRI). This
	 * comprises most common used Unicode characters allowed in IRI as detailed
	 * in RFC 3987. Specifically, those two byte Unicode characters are not
	 * included.
	 */
	public static final String GOOD_IRI_CHAR = "a-zA-Z0-9\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF";

	/**
	 * Regular expression pattern to match most part of RFC 3987
	 * Internationalized URLs, aka IRIs. Commonly used Unicode characters are
	 * added.
	 */
	public static final Pattern WEB_URL3 = Pattern
			.compile("((http[s]{0,1}|ftp)://[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)|(www.[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)|([a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)");

	public static final Pattern WEB_URL2 = Pattern
			.compile("(http|ftp|https):\\/\\/[\\w\\-_]+(\\.[\\w\\-_]+)+([\\w\\-\\.,@?^=%&amp;:/~\\+#]*[\\w\\-\\@?^=%&amp;/~\\+#])?");

	public static final Pattern WEB_URL = Pattern
			.compile("((?:(http|https|Http|Https|rtsp|Rtsp):\\/\\/(?:(?:[a-zA-Z0-9\\$\\-\\_\\.\\+\\!\\*\\'\\(\\)"
					+ "\\,\\;\\?\\&\\=]|(?:\\%[a-fA-F0-9]{2})){1,64}(?:\\:(?:[a-zA-Z0-9\\$\\-\\_"
					+ "\\.\\+\\!\\*\\'\\(\\)\\,\\;\\?\\&\\=]|(?:\\%[a-fA-F0-9]{2})){1,25})?\\@)?)?"
					+ "((?:(?:["
					+ GOOD_IRI_CHAR
					+ "]["
					+ GOOD_IRI_CHAR
					+ "\\-]{0,64}\\.)+" // named host
					+ TOP_LEVEL_DOMAIN_STR_FOR_WEB_URL
					+ "|(?:(?:25[0-5]|2[0-4]" // or ip address
					+ "[0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9])\\.(?:25[0-5]|2[0-4][0-9]"
					+ "|[0-1][0-9]{2}|[1-9][0-9]|[1-9]|0)\\.(?:25[0-5]|2[0-4][0-9]|[0-1]"
					+ "[0-9]{2}|[1-9][0-9]|[1-9]|0)\\.(?:25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}"
					+ "|[1-9][0-9]|[0-9])))"
					+ "(?:\\:\\d{1,5})?)" // plus option port number
					+ "(\\/(?:(?:["
					+ GOOD_IRI_CHAR
					+ "\\;\\/\\?\\:\\@\\&\\=\\#\\~" // plus option query params
					+ "\\-\\.\\+\\!\\*\\'\\(\\)\\,\\_])|(?:\\%[a-fA-F0-9]{2}))*)?"
					+ "(?:\\b|$)"); // and finally, a word boundary or end of
	// input. This is to stop foo.sure from
	// matching as foo.su

	public static final Pattern EMAIL_ADDRESS = Pattern
			.compile("[a-zA-Z0-9\\+\\.\\_\\%\\-\\+]{1,256}" + "\\@"
					+ "[a-zA-Z0-9][a-zA-Z0-9\\-]{0,64}" + "(" + "\\."
					+ "[a-zA-Z0-9][a-zA-Z0-9\\-]{0,25}" + ")+");

	public static final Pattern PHONE_NUMBER = Pattern.compile("^((13[0-9])|(14[5,7,9])|(15[^4])|(18[0-9])|(17[0,1,3,5,6,7,8]))\\d{8}$");

	public static final Pattern EMOJI = Pattern
			.compile("\\[(([\u4e00-\u9fa5]+)|([a-zA-z]+))\\]");
	public static final Pattern EMOJI_NUMBERS = Pattern
			.compile("\\[[(0-9)]+\\]");


	private String textImagePath = ZhiChiConstant.imagePositionPath;
	private Context context;

	private HtmlTools(Context context) {
		super();
		this.context = context.getApplicationContext();
	}

	public void loadPic(final TextView textView,String source, final String htmlContent,
			String fileString,final int color) {
		// 启动新线程下载

		final File file = new File(fileString);
		
		HttpUtils.getInstance().download(source, file, null, new FileCallBack() {
            
            @Override
            public void onResponse(File result) {
				setRichText(textView,htmlContent,color);
			}
            
            @Override
            public void onError(Exception e, String msg, int responseCode) {
                LogUtils.i(" 文本图片的下载失败", e);
            }
            
            @Override
            public void inProgress(int progress) {
                LogUtils.i(" 文本图片的下载进度" + progress);
            }
        });
	}

	/**
	 * 设置富文本
	 * @param widget
	 * @param content
	 * @param color 要显示的颜色
     */
	public void setRichText(TextView widget,String content,int color,boolean showBottomLine){
		if (TextUtils.isEmpty(content))
			return;
		widget.setMovementMethod(LinkMovementClickMethod.getInstance());
		widget.setFocusable(false);
		Spanned span = formatRichTextWithPic(widget,content.replace("\n","<br />"),color);
		// 显示表情
		span = InputHelper.displayEmoji(context.getApplicationContext(), span);
		// 显示链接
		parseLinkText(context,widget, span,color,showBottomLine);
	}
	/**
	 * 设置富文本
	 * @param widget
	 * @param content
	 * @param color 要显示的颜色
     */
	public void setRichText(TextView widget,String content,int color){

		widget.setMovementMethod(LinkMovementClickMethod.getInstance());
		Spanned span = formatRichTextWithPic(widget,content.replace("\n","<br />"),color);
		// 显示表情
		span = InputHelper.displayEmoji(context.getApplicationContext(), span);
		// 显示链接
		parseLinkText(context,widget, span,color,false);
	}

	/**
	 * 获取带图片的富文本如果本地没有就开启下载
	 * @param textView
	 * @param htmlContent
	 * @param color
     * @return
     */
	public Spanned formatRichTextWithPic(final TextView textView, final String htmlContent,final int color){
		return Html.fromHtml(htmlContent, new Html.ImageGetter() {
			@Override
			public Drawable getDrawable(String source) {
				if (!TextUtils.isEmpty(source)) {
					Drawable drawable = null;
					String fileString = textImagePath
							+ String.valueOf(source.hashCode());
					if (new File(fileString).exists()) {
						LogUtils.i(" 网络下载 文本中的图片信息  " + fileString + "  eixts");
						// 获取本地文件返回Drawable
						drawable = Drawable.createFromPath(fileString);
						if(drawable != null){
							// 设置图片边界
							LogUtils.i(" 图文并茂中 图片的 大小 width： "
									+ drawable.getIntrinsicWidth() + "--height:"
									+ drawable.getIntrinsicWidth());
							drawable.setBounds(0, 0, drawable.getIntrinsicWidth() * 4,
									drawable.getIntrinsicHeight() * 4);
						}
						return drawable;
					} else {
						LogUtils.i(fileString + " Do not eixts");
						if(source.startsWith("https://") || source.startsWith("http://")){
							loadPic(textView,source, htmlContent, fileString,color);
							return drawable;
						} else
							return null;
					}
				}
				return null;
			}

		}, null);
	}

	/**
	 * 显示超链接
	 * @param context
	 * @param widget
	 * @param spanhtml
	 * @param color 要显示的颜色
     */
	public static void parseLinkText(Context context, TextView widget, Spanned spanhtml,int color,boolean showLine) {
		CharSequence text = spanhtml;
		if (text instanceof Spannable) {
			Spannable sp = (Spannable) spanhtml;

			// 检查出所有EMAIL地址
			Matcher m = EMAIL_ADDRESS.matcher(sp);
			while (m.find()) {
				int start = m.start();
				int e = m.end();
				if(sp.getSpans(start, e, URLSpan.class).length == 0) {
					sp.setSpan(new EmailSpan(context.getApplicationContext(),m.group(),color), start, e,
							Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
				}
			}

			// 检查出所有链接
			m = WEB_URL3.matcher(sp);
			while (m.find()) {
				int start = m.start();
				int e = m.end();
				if(sp.getSpans(start, e, URLSpan.class).length == 0){
					sp.setSpan(new MyURLSpan(context.getApplicationContext(),m.group(),color,true), start, e,
							Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
				}
			}

			// 检查出所有电话
			m = PHONE_NUMBER.matcher(sp);
			while (m.find()) {
				int start = m.start();
				int e = m.end();
				if(sp.getSpans(start, e, URLSpan.class).length == 0){
					sp.setSpan(new PhoneSpan(context.getApplicationContext(),m.group(),color), start, e,
							Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
				}
			}

			int end = text.length();
			URLSpan[] urls = sp.getSpans(0, end, URLSpan.class);
			URLSpan[] htmlurls = spanhtml != null ? spanhtml.getSpans(0, end,
					URLSpan.class) : new URLSpan[] {};

			if (urls.length == 0 && htmlurls.length == 0) {
				widget.setText(sp);
				return;
			}

			SpannableStringBuilder style = new SpannableStringBuilder(text);
			for (URLSpan url : htmlurls) {
				style.removeSpan(url);// 只需要移除之前的URL样式，再重新设置
				MyURLSpan myURLSpan = new MyURLSpan(context.getApplicationContext(),url.getURL(),color,showLine);
				style.setSpan(myURLSpan, spanhtml.getSpanStart(url),
						spanhtml.getSpanEnd(url),
						Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
			}

			widget.setText(style);
		}
	}
}