/*
 * 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.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;

import org.apache.wicket.Component;
import org.apache.wicket.PageParameters;
import org.apache.wicket.behavior.SimpleAttributeModifier;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.image.ContextImage;
import org.apache.wicket.resource.ContextRelativeResource;
import org.eclipse.jgit.diff.DiffEntry.ChangeType;
import org.eclipse.jgit.lib.Constants;

import com.gitblit.GitBlit;
import com.gitblit.Keys;
import com.gitblit.utils.JGitUtils.SearchType;
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 setCssStyle(Component container, String value) {
		container.add(new SimpleAttributeModifier("style", value));
	}

	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 setTicketCssClass(Component container, String state) {
		String css = null;
		if (state.equals("open")) {
			css = "bug_open";
		} else if (state.equals("hold")) {
			css = "bug_hold";
		} else if (state.equals("resolved")) {
			css = "bug_resolved";
		} else if (state.equals("invalid")) {
			css = "bug_invalid";
		}
		if (css != null) {
			setCssClass(container, css);
		}
	}

	public static void setAlternatingBackground(Component c, int i) {
		String clazz = i % 2 == 0 ? "dark" : "light";
		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 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_word_16x16.png");
		} else if (filename.endsWith(".ppt")) {
			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");
		}

		List<String> mdExtensions = GitBlit.getStrings(Keys.web.markdownExtensions);
		for (String ext : mdExtensions) {
			if (filename.endsWith('.' + ext.toLowerCase())) {
				return newImage(wicketId, "file_world_16x16.png");
			}
		}
		return newImage(wicketId, "file_16x16.png");
	}

	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, "/com/gitblit/wicket/resources/" + file);
		if (!StringUtils.isEmpty(tooltip)) {
			setHtmlTooltip(img, tooltip);
		}
		return img;
	}

	public static ContextRelativeResource getResource(String file) {
		return new ContextRelativeResource("/com/gitblit/wicket/resources/" + file);
	}

	public static PageParameters newUsernameParameter(String username) {
		return new PageParameters("user=" + username);
	}

	public static PageParameters newRepositoryParameter(String repositoryName) {
		return new PageParameters("r=" + repositoryName);
	}

	public static PageParameters newObjectParameter(String repositoryName, String objectId) {
		if (StringUtils.isEmpty(objectId)) {
			return newRepositoryParameter(repositoryName);
		}
		return new PageParameters("r=" + repositoryName + ",h=" + objectId);
	}

	public static PageParameters newPathParameter(String repositoryName, String objectId,
			String path) {
		if (StringUtils.isEmpty(path)) {
			return newObjectParameter(repositoryName, objectId);
		}
		return new PageParameters("r=" + repositoryName + ",h=" + objectId + ",f=" + path);
	}

	public static PageParameters newLogPageParameter(String repositoryName, String objectId,
			int pageNumber) {
		if (pageNumber <= 1) {
			return newObjectParameter(repositoryName, objectId);
		}
		return new PageParameters("r=" + repositoryName + ",h=" + objectId + ",page=" + pageNumber);
	}

	public static PageParameters newHistoryPageParameter(String repositoryName, String objectId,
			String path, int pageNumber) {
		if (pageNumber <= 1) {
			return newObjectParameter(repositoryName, objectId);
		}
		return new PageParameters("r=" + repositoryName + ",h=" + objectId + ",f=" + path
				+ ",page=" + pageNumber);
	}

	public static PageParameters newBlobDiffParameter(String repositoryName, String baseCommitId,
			String commitId, String path) {
		return new PageParameters("r=" + repositoryName + ",h=" + commitId + ",f=" + path + ",hb="
				+ baseCommitId);
	}

	public static PageParameters newSearchParameter(String repositoryName, String commitId,
			String search, SearchType type) {
		if (StringUtils.isEmpty(commitId)) {
			return new PageParameters("r=" + repositoryName + ",s=" + search + ",st=" + type.name());
		}
		return new PageParameters("r=" + repositoryName + ",h=" + commitId + ",s=" + search
				+ ",st=" + type.name());
	}

	public static PageParameters newSearchParameter(String repositoryName, String commitId,
			String search, SearchType type, int pageNumber) {
		return new PageParameters("r=" + repositoryName + ",h=" + commitId + ",s=" + search
				+ ",st=" + type.name() + ",page=" + pageNumber);
	}

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

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

	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("page", 1);
	}

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

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

	public static Label createTimestampLabel(String wicketId, Date date, TimeZone timeZone) {
		String format = GitBlit.getString(Keys.web.datetimestampLongFormat,
				"EEEE, MMMM d, yyyy h:mm a z");
		DateFormat df = new SimpleDateFormat(format);
		if (timeZone != null) {
			df.setTimeZone(timeZone);
		}
		String dateString = df.format(date);
		String title = TimeUtils.timeAgo(date);
		Label label = new Label(wicketId, dateString);
		WicketUtils.setHtmlTooltip(label, title);
		return label;
	}
}