<?xml version="1.0" encoding="utf-8"?>

<!--
This file addresses break-before's in page context.
-->

<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
  <fo:layout-master-set>
    <!-- layout for all pages -->
    <fo:simple-page-master master-name="all"
          page-height="29.7cm"
          page-width="21cm"
          margin-top="1cm"
          margin-bottom="2cm"
          margin-left="2.5cm"
          margin-right="2.5cm">
      <fo:region-body margin-top="3cm" margin-bottom="2cm"/>
      <fo:region-before extent="3cm"/>
      <fo:region-after extent="2cm"/>
    </fo:simple-page-master>
  </fo:layout-master-set>

  <fo:page-sequence master-reference="all">
    <fo:static-content flow-name="xsl-region-after">
    <fo:block font-size="10pt" text-align="start"
      border-style="solid" border-color="blue" border-width="0.5pt"
    space-before.optimum="6pt">
    Text excerpt from XSL Candidate Recommendation, 21 Nov 2000.
    </fo:block>
  </fo:static-content>

    <fo:flow flow-name="xsl-region-body">
      <fo:block
      font-size="14pt" font-family="sans-serif"
    line-height="18pt" space-after.optimum="15pt">
Keep and break conditions apply to a class of areas, which are typically
page-reference-areas, column-areas, and line-areas. The appropriate class
for a given condition is referred to as a context and an area in this
class is a context-area. As defined in Section 6.4.1, page-reference-areas
are areas generated by an fo:page-sequence using the specifications in a
fo:page-master, and column-areas are normal-flow-reference-areas generated
from a region-body, or region-reference-areas generated from other types
of region-master.
      </fo:block>

      <fo:block
      font-size="14pt" font-family="sans-serif"
    line-height="18pt" space-after.optimum="15pt">
A keep or break condition is an open statement about a formatting object
and the tree relationships of the areas it generates with the relevant
context-areas. These tree relationships are defined mainly in terms of
leading or trailing areas. If A is a descendant of P, then A is defined
to be leading in P if A has no preceding sibling which is a normal area,
nor does any of its ancestor areas up to but not including P. Similarly,
A is defined to be trailing in P if A has no following sibling which is
a normal area, nor does any of its ancestor areas up to but not including P.
For any given formatting object, the next formatting object in the flow is
the first formatting object following (in the pre-order traversal order)
which generates and returns normal areas.
    </fo:block>

      <fo:block
      font-size="14pt" font-family="sans-serif"
    line-height="18pt" space-after.optimum="15pt">
Break conditions are either break-before or break-before conditions.
A break-before condition is satisfied if the first area generated and
returned by the formatting object is leading within a context-area. A
break-before condition depends on the next formatting object in the flow;
it is satisfied if either there is no such next formatting object, or
if the first normal area generated and returned by that formatting
object is lead
/*
 * Copyright 2011 gitblit.com.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.gitblit.wicket;

import java.text.DateFormat;
import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.util.Collection;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.TimeZone;

import javax.servlet.http.HttpServletRequest;

import org.apache.wicket.Component;
import org.apache.wicket.PageParameters;
import org.apache.wicket.Request;
import org.apache.wicket.behavior.AttributeAppender;
import org.apache.wicket.behavior.HeaderContributor;
import org.apache.wicket.behavior.SimpleAttributeModifier;
import org.apache.wicket.markup.html.IHeaderContributor;
import org.apache.wicket.markup.html.IHeaderResponse;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.image.ContextImage;
import org.apache.wicket.model.Model;
import org.apache.wicket.protocol.http.WebRequest;
import org.apache.wicket.resource.ContextRelativeResource;
import org.eclipse.jgit.diff.DiffEntry.ChangeType;

import com.gitblit.Constants;
import com.gitblit.Constants.AccessPermission;
import com.gitblit.Constants.FederationPullStatus;
import com.gitblit.IStoredSettings;
import com.gitblit.Keys;
import com.gitblit.models.FederationModel;
import com.gitblit.models.Metric;
import com.gitblit.utils.HttpUtils;
import com.gitblit.utils.StringUtils;
import com.gitblit.utils.TimeUtils;

public class WicketUtils {

	public static void setCssClass(Component container, String value) {
		container.add(new SimpleAttributeModifier("class", value));
	}

	public static void addCssClass(Component container, String value) {
		container.add(new AttributeAppender("class", new Model<String>(value), " "));
	}
	
	public static void setCssStyle(Component container, String value) {
		container.add(new SimpleAttributeModifier("style", value));
	}

	public static void setCssBackground(Component container, String value) {
		String background = MessageFormat.format("background-color:{0};",
				StringUtils.getColor(value));
		container.add(new SimpleAttributeModifier("style", background));
	}

	public static void setHtmlTooltip(Component container, String value) {
		container.add(new SimpleAttributeModifier("title", value));
	}

	public static void setInputPlaceholder(Component container, String value) {
		container.add(new SimpleAttributeModifier("placeholder", value));
	}

	public static void setChangeTypeCssClass(Component container, ChangeType type) {
		switch (type) {
		case ADD:
			setCssClass(container, "addition");
			break;
		case COPY:
		case RENAME:
			setCssClass(container, "rename");
			break;
		case DELETE:
			setCssClass(container, "deletion");
			break;
		case MODIFY:
			setCssClass(container, "modification");
			break;
		}
	}

	public static void setPermissionClass(Component container, AccessPermission permission) {
		if (permission == null) {
			setCssClass(container, "badge");
			return;
		}
		switch (permission) {
		case REWIND:
		case DELETE:
		case CREATE:
			setCssClass(container, "badge badge-success");
			break;
		case PUSH:
			setCssClass(container, "badge badge-info");
			break;
		case CLONE:
			setCssClass(container, "badge badge-inverse");
			break;
		default:
			setCssClass(container, "badge");
			break;
		}
	}

	public static void setAlternatingBackground(Component c, int i) {
		String clazz = i % 2 == 0 ? "light" : "dark";
		setCssClass(c, clazz);
	}

	public static Label createAuthorLabel(String wicketId, String author) {
		Label label = new Label(wicketId, author);
		WicketUtils.setHtmlTooltip(label, author);
		return label;
	}

	public static ContextImage getPullStatusImage(String wicketId, FederationPullStatus status) {
		String filename = null;
		switch (status) {
		case MIRRORED:
		case PULLED:
			filename = "bullet_green.png";
			break;
		case SKIPPED:
			filename = "bullet_yellow.png";
			break;
		case FAILED:
			filename = "bullet_red.png";
			break;
		case EXCLUDED:
			filename = "bullet_white.png";
			break;
		case PENDING:
		case NOCHANGE:
		default:
			filename = "bullet_black.png";
		}
		return WicketUtils.newImage(wicketId, filename, status.name());
	}

	public static ContextImage getFileImage(String wicketId, String filename) {
		filename = filename.toLowerCase();
		if (filename.endsWith(".java")) {
			return newImage(wicketId, "file_java_16x16.png");
		} else if (filename.endsWith(".rb")) {
			return newImage(wicketId, "file_ruby_16x16.png");
		} else if (filename.endsWith(".php")) {
			return newImage(wicketId, "file_php_16x16.png");
		} else if (filename.endsWith(".cs")) {
			return newImage(wicketId, "file_cs_16x16.png");
		} else if (filename.endsWith(".cpp")) {
			return newImage(wicketId, "file_cpp_16x16.png");
		} else if (filename.endsWith(".c")) {
			return newImage(wicketId, "file_c_16x16.png");
		} else if (filename.endsWith(".h")) {
			return newImage(wicketId, "file_h_16x16.png");
		} else if (filename.endsWith(".sln")) {
			return newImage(wicketId, "file_vs_16x16.png");
		} else if (filename.endsWith(".csv") || filename.endsWith(".xls")
				|| filename.endsWith(".xlsx")) {
			return newImage(wicketId, "file_excel_16x16.png");
		} else if (filename.endsWith(".doc") || filename.endsWith(".docx")) {
			return newImage(wicketId, "file_doc_16x16.png");
		} else if (filename.endsWith(".ppt") || filename.endsWith(".pptx")) {
			return newImage(wicketId, "file_ppt_16x16.png");
		} else if (filename.endsWith(".zip")) {
			return newImage(wicketId, "file_zip_16x16.png");
		} else if (filename.endsWith(".pdf")) {
			return newImage(wicketId, "file_acrobat_16x16.png");
		} else if (filename.endsWith(".htm") || filename.endsWith(".html")) {
			return newImage(wicketId, "file_world_16x16.png");
		} else if (filename.endsWith(".xml")) {
			return newImage(wicketId, "file_code_16x16.png");
		} else if (filename.endsWith(".properties")) {
			return newImage(wicketId, "file_settings_16x16.png");
		}

		String ext = StringUtils.getFileExtension(filename).toLowerCase();
		IStoredSettings settings = GitBlitWebApp.get().settings();
		if (MarkupProcessor.getMarkupExtensions(settings).contains(ext)) {
			return newImage(wicketId, "file_world_16x16.png");
		}
		return newImage(wicketId, "file_16x16.png");
	}

	public static ContextImage getRegistrationImage(String wicketId, FederationModel registration,
			Component c) {
		if (registration.isResultData()) {
			return WicketUtils.newImage(wicketId, "information_16x16.png",
					c.getString("gb.federationResults"));
		} else {
			return WicketUtils.newImage(wicketId, "arrow_left.png",
					c.getString("gb.federationRegistration"));
		}
	}

	public static ContextImage newClearPixel(String wicketId) {
		return newImage(wicketId, "pixel.png");
	}

	public static ContextImage newBlankImage(String wicketId) {
		return newImage(wicketId, "blank.png");
	}

	public static ContextImage newImage(String wicketId, String file) {
		return newImage(wicketId, file, null);
	}

	public static ContextImage newImage(String wicketId, String file, String tooltip) {
		ContextImage img = new ContextImage(wicketId, file);
		if (!StringUtils.isEmpty(tooltip)) {
			setHtmlTooltip(img, tooltip);
		}
		return img;
	}

	public static Label newIcon(String wicketId, String css) {
		Label lbl = new Label(wicketId);
		setCssClass(lbl, css);
		return lbl;
	}

	public static Label newBlankIcon(String wicketId) {
		Label lbl = new Label(wicketId);
		setCssClass(lbl, "");
		lbl.setRenderBodyOnly(true);
		return lbl;
	}

	public static ContextRelativeResource getResource(String file) {
		return new ContextRelativeResource(file);
	}

	public static String getGitblitURL(Request request) {
		HttpServletRequest req = ((WebRequest) request).getHttpServletRequest();
		return HttpUtils.getGitblitURL(req);
	}

	public static HeaderContributor syndicationDiscoveryLink(final String feedTitle,
			final String url) {
		return new HeaderContributor(new IHeaderContributor() {
			private static final long serialVersionUID = 1L;

			@Override
			public void renderHead(IHeaderResponse response) {
				String contentType = "application/rss+xml";

				StringBuilder buffer = new StringBuilder();
				buffer.append("<link rel=\"alternate\" ");
				buffer.append("type=\"").append(contentType).append("\" ");
				buffer.append("title=\"").append(feedTitle).append("\" ");
				buffer.append("href=\"").append(url).append("\" />");
				response.renderString(buffer.toString());
			}
		});
	}

	public static PageParameters newTokenParameter(String token) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		parameterMap.put("t", token);
		return new PageParameters(parameterMap);
	}

	public static PageParameters newRegistrationParameter(String url,
			String name) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		parameterMap.put("u", url);
		parameterMap.put("n", name);
		return new PageParameters(parameterMap);
	}

	public static PageParameters newUsernameParameter(String username) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		parameterMap.put("user", username);
		return new PageParameters(parameterMap);
	}

	public static PageParameters newTeamnameParameter(String teamname) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		parameterMap.put("team", teamname);
		return new PageParameters(parameterMap);
	}

	public static PageParameters newProjectParameter(String projectName) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		parameterMap.put("p", projectName);
		return new PageParameters(parameterMap);
	}

	public static PageParameters newRepositoryParameter(String repositoryName) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		if (!StringUtils.isEmpty(repositoryName)) {
			parameterMap.put("r", repositoryName);
		}
		return new PageParameters(parameterMap);
	}

	public static PageParameters newObjectParameter(String objectId) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		parameterMap.put("h", objectId);
		return new PageParameters(parameterMap);
	}

	public static PageParameters newObjectParameter(String repositoryName,
			String objectId) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		if (StringUtils.isEmpty(objectId)) {
			return newRepositoryParameter(repositoryName);
		}
		parameterMap.put("r", repositoryName);
		parameterMap.put("h", objectId);
		return new PageParameters(parameterMap);
	}

	public static PageParameters newRangeParameter(String repositoryName,
			String startRange, String endRange) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		parameterMap.put("r", repositoryName);
		parameterMap.put("h", startRange + ".." + endRange);
		return new PageParameters(parameterMap);
	}

	public static PageParameters newPathParameter(String repositoryName,
			String objectId, String path) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		if (StringUtils.isEmpty(path)) {
			return newObjectParameter(repositoryName, objectId);
		}
		if (StringUtils.isEmpty(objectId)) {
			parameterMap.put("r", repositoryName);
			parameterMap.put("f", path);
			return new PageParameters(parameterMap);
		}
		parameterMap.put("r", repositoryName);
		parameterMap.put("h", objectId);
		parameterMap.put("f", path);
		return new PageParameters(parameterMap);
	}

	public static PageParameters newLogPageParameter(String repositoryName,
			String objectId, int pageNumber) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		if (pageNumber <= 1) {
			return newObjectParameter(repositoryName, objectId);
		}
		if (StringUtils.isEmpty(objectId)) {
			parameterMap.put("r", repositoryName);
			parameterMap.put("pg", String.valueOf(pageNumber));
			return new PageParameters(parameterMap);
		}
		parameterMap.put("r", repositoryName);
		parameterMap.put("h", objectId);
		parameterMap.put("pg", String.valueOf(pageNumber));
		return new PageParameters(parameterMap);
	}

	public static PageParameters newHistoryPageParameter(String repositoryName,
			String objectId, String path, int pageNumber) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		if (pageNumber <= 1) {
			return newObjectParameter(repositoryName, objectId);
		}
		if (StringUtils.isEmpty(objectId)) {
			parameterMap.put("r", repositoryName);
			parameterMap.put("f", path);
			parameterMap.put("pg", String.valueOf(pageNumber));
			return new PageParameters(parameterMap);
		}
		parameterMap.put("r", repositoryName);
		parameterMap.put("h", objectId);
		parameterMap.put("f", path);
		parameterMap.put("pg", String.valueOf(pageNumber));
		return new PageParameters(parameterMap);
	}

	public static PageParameters newBlobDiffParameter(String repositoryName,
			String baseCommitId, String commitId, String path) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		if (StringUtils.isEmpty(commitId)) {
			parameterMap.put("r", repositoryName);
			parameterMap.put("f", path);
			parameterMap.put("hb", baseCommitId);
			return new PageParameters(parameterMap);
		}
		parameterMap.put("r", repositoryName);
		parameterMap.put("h", commitId);
		parameterMap.put("f", path);
		parameterMap.put("hb", baseCommitId);
		return new PageParameters(parameterMap);
	}

	public static PageParameters newSearchParameter(String repositoryName,
			String commitId, String search, Constants.SearchType type) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		if (StringUtils.isEmpty(commitId)) {
			parameterMap.put("r", repositoryName);
			parameterMap.put("s", search);
			parameterMap.put("st", type.name());
			return new PageParameters(parameterMap);
		}
		parameterMap.put("r", repositoryName);
		parameterMap.put("h", commitId);
		parameterMap.put("s", search);
		parameterMap.put("st", type.name());
		return new PageParameters(parameterMap);
	}

	public static PageParameters newSearchParameter(String repositoryName,
			String commitId, String search, Constants.SearchType type,
			int pageNumber) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		if (StringUtils.isEmpty(commitId)) {
			parameterMap.put("r", repositoryName);
			parameterMap.put("s", search);
			parameterMap.put("st", type.name());
			parameterMap.put("pg", String.valueOf(pageNumber));
			return new PageParameters(parameterMap);
		}
		parameterMap.put("r", repositoryName);
		parameterMap.put("h", commitId);
		parameterMap.put("s", search);
		parameterMap.put("st", type.name());
		parameterMap.put("pg", String.valueOf(pageNumber));
		return new PageParameters(parameterMap);
	}

	public static PageParameters newBlameTypeParameter(String repositoryName,
			String commitId, String path, String blameType) {
		Map<String, String> parameterMap = new HashMap<String, String>();
		parameterMap.put("r", repositoryName);
		parameterMap.put("h", commitId);
		parameterMap.put("f", path);
		parameterMap.put("blametype", blameType);
		return new PageParameters(parameterMap);
	}

	public static PageParameters newTicketsParameters(String repositoryName, String... states) {
		PageParameters tParams = newRepositoryParameter(repositoryName);
		if (states != null) {
			for (String state : states) {
				tParams.add("status", state);
			}
		}
		return tParams;
	}

	public static PageParameters newOpenTicketsParameter(String repositoryName) {
		return newTicketsParameters(repositoryName, TicketsUI.openStatii);
	}

	public static String getProjectName(PageParameters params) {
		return params.getString("p", "");
	}

	public static String getRepositoryName(PageParameters params) {
		return params.getString("r", "");
	}

	public static String getObject(PageParameters params) {
		return params.getString("h", null);
	}

	public static String getPath(PageParameters params) {
		return params.getString("f", null);
	}

	public static String getBaseObjectId(PageParameters params) {
		return params.getString("hb", null);
	}

	public static String getSearchString(PageParameters params) {
		return params.getString("s", null);
	}

	public static String getSearchType(PageParameters params) {
		return params.getString("st", null);
	}

	public static int getPage(PageParameters params) {
		// index from 1
		return params.getInt("pg", 1);
	}

	public static String getRegEx(PageParameters params) {
		return params.getString("x", "");
	}

	public static String getSet(PageParameters params) {
		return params.getString("set", "");
	}

	public static String getTeam(PageParameters params) {
		return params.getString("team", "");
	}

	public static int getDaysBack(PageParameters params) {
		return params.getInt("db", 0);
	}

	public static String getUsername(PageParameters params) {
		return params.getString("user", "");
	}

	public static String getTeamname(PageParameters params) {
		return params.getString("team", "");
	}

	public static String getToken(PageParameters params) {
		return params.getString("t", "");
	}

	public static String getUrlParameter(PageParameters params) {
		return params.getString("u", "");
	}

	public static String getNameParameter(PageParameters params) {
		return params.getString("n", "");
	}

	public static Label createDateLabel(String wicketId, Date date, TimeZone timeZone, TimeUtils timeUtils) {
		return createDateLabel(wicketId, date, timeZone, timeUtils, true);
	}

	public static Label createDateLabel(String wicketId, Date date, TimeZone timeZone, TimeUtils timeUtils, boolean setCss) {
		String format = GitBlitWebApp.get().settings().getString(Keys.web.datestampShortFormat, "MM/dd/yy");
		DateFormat df = new SimpleDateFormat(format);
		if (timeZone == null) {
			timeZone = GitBlitWebApp.get().getTimezone();
		}
		df.setTimeZone(timeZone);
		String dateString;
		if (date.getTime() == 0) {
			dateString = "--";
		} else {
			dateString = df.format(date);
		}
		String title = null;
		if (date.getTime() <= System.currentTimeMillis()) {
			// past
			title = timeUtils.timeAgo(date);
		}
		if (title != null && (System.currentTimeMillis() - date.getTime()) < 10 * 24 * 60 * 60 * 1000L) {
			String tmp = dateString;
			dateString = title;
			title = tmp;
		}
		Label label = new Label(wicketId, dateString);
		if (setCss) {
			WicketUtils.setCssClass(label, timeUtils.timeAgoCss(date));
		}
		if (!StringUtils.isEmpty(title)) {
			WicketUtils.setHtmlTooltip(label, title);
		}
		return label;
	}

	public static Label createTimeLabel(String wicketId, Date date, TimeZone timeZone, TimeUtils timeUtils) {
		String format = GitBlitWebApp.get().settings().getString(Keys.web.timeFormat, "HH:mm");
		DateFormat df = new SimpleDateFormat(format);
		if (timeZone == null) {
			timeZone = GitBlitWebApp.get().getTimezone();
		}
		df.setTimeZone(timeZone);
		String timeString;
		if (date.getTime() == 0) {
			timeString = "--";
		} else {
			timeString = df.format(date);
		}
		String title = timeUtils.timeAgo(date);
		Label label = new Label(wicketId, timeString);
		if (!StringUtils.isEmpty(title)) {
			WicketUtils.setHtmlTooltip(label, title);
		}
		return label;
	}

	public static Label createDatestampLabel(String wicketId, Date date, TimeZone timeZone, TimeUtils timeUtils) {
		String format = GitBlitWebApp.get().settings().getString(Keys.web.datestampLongFormat, "EEEE, MMMM d, yyyy");
		DateFormat df = new SimpleDateFormat(format);
		if (timeZone == null) {
			timeZone = GitBlitWebApp.get().getTimezone();
		}
		df.setTimeZone(timeZone);
		String dateString;
		if (date.getTime() == 0) {
			dateString = "--";
		} else {
			dateString = df.format(date);
		}
		String title = null;
		if (TimeUtils.isToday(date, timeZone)) {
			title = timeUtils.today();
		} else if (TimeUtils.isYesterday(date, timeZone)) {
			title = timeUtils.yesterday();
		} else if (date.getTime() <= System.currentTimeMillis()) {
			// past
			title = timeUtils.timeAgo(date);
		} else {
			// future
			title = timeUtils.inFuture(date);
		}
		if ((System.currentTimeMillis() - date.getTime()) < 10 * 24 * 60 * 60 * 1000L) {
			String tmp = dateString;
			dateString = title;
			title = tmp;
		}
		Label label = new Label(wicketId, dateString);
		if (!StringUtils.isEmpty(title)) {
			WicketUtils.setHtmlTooltip(label, title);
		}
		return label;
	}

	public static Label createTimestampLabel(String wicketId, Date date, TimeZone timeZone, TimeUtils timeUtils) {
		String format = GitBlitWebApp.get().settings().getString(Keys.web.datetimestampLongFormat,
				"EEEE, MMMM d, yyyy HH:mm Z");
		DateFormat df = new SimpleDateFormat(format);
		if (timeZone == null) {
			timeZone = GitBlitWebApp.get().getTimezone();
		}
		df.setTimeZone(timeZone);
		String dateString;
		if (date.getTime() == 0) {
			dateString = "--";
		} else {
			dateString = df.format(date);
		}
		String title = null;
		if (date.getTime() <= System.currentTimeMillis()) {
			// past
			title = timeUtils.timeAgo(date);
		}
		Label label = new Label(wicketId, dateString);
		if (!StringUtils.isEmpty(title)) {
			WicketUtils.setHtmlTooltip(label, title);
		}
		return label;
	}

	public static double maxValue(Collection<Metric> metrics) {
		double max = Double.MIN_VALUE;
		for (Metric m : metrics) {
			if (m.count > max) {
				max = m.count;
			}
		}
		return max;
	}
}