#364 gray badge

src/main/java/org/jpeek/web/Results.java

@@ -160,6 +160,32 @@ elements, artifact, new Version().value(), rank, score
         }
     }
 
+    /**
+     * Has this artifact?
+     * @param artifact The artifact, e.g. "org.jpeek:jpeek"
+     * @return TRUE if it exists
+     */
+    public boolean exists(final String artifact) {
+        return !this.table.frame()
+            .where("good", "true")
+            .where("artifact", artifact)
+            .isEmpty();
+    }
+
+    /**
+     * Get score of this.
+     * @param artifact The artifact, e.g. "org.jpeek:jpeek"
+     * @return The score
+     */
+    public double score(final String artifact) throws IOException {
+        final Item item = this.table.frame()
+            .where("good", "true")
+            .where("artifact", artifact)
+            .iterator()
+            .next();
+        return new DyNum(item, "score").doubleValue();
+    }
+
     /**
      * Recent artifacts..
      * @return List of them

src/main/java/org/jpeek/web/TkApp.java

@@ -151,7 +151,7 @@ private static Take make(final Path home) throws IOException {
                         ),
                         new FkRegex(
                             "/([^/]+)/([^/]+)(.*)",
-                            new TkReport(reports)
+                            new TkReport(reports, new Results())
                         )
                     )
                 ),

src/main/java/org/jpeek/web/TkReport.java

@@ -23,16 +23,26 @@
  */
 package org.jpeek.web;
 
+import com.jcabi.xml.ClasspathSources;
+import com.jcabi.xml.XMLDocument;
+import com.jcabi.xml.XSLDocument;
 import java.io.IOException;
+import java.net.HttpURLConnection;
 import java.util.regex.Matcher;
 import org.cactoos.BiFunc;
 import org.cactoos.Func;
 import org.cactoos.func.IoCheckedBiFunc;
 import org.cactoos.func.IoCheckedFunc;
+import org.jpeek.App;
 import org.takes.Response;
 import org.takes.facets.fork.RqRegex;
 import org.takes.facets.fork.TkRegex;
 import org.takes.facets.forward.RsForward;
+import org.takes.facets.hamcrest.HmRsStatus;
+import org.takes.rs.RsText;
+import org.takes.rs.RsWithType;
+import org.xembly.Directives;
+import org.xembly.Xembler;
 
 /**
  * Report page.
@@ -52,29 +62,61 @@ final class TkReport implements TkRegex {
      */
     private final BiFunc<String, String, Func<String, Response>> reports;
 
+    /**
+     * Results.
+     */
+    private final Results results;
+
     /**
      * Ctor.
      * @param rpts Reports
      */
-    TkReport(final BiFunc<String, String, Func<String, Response>> rpts) {
+    TkReport(final BiFunc<String, String, Func<String, Response>> rpts,
+        final Results rslts) {
         this.reports = rpts;
+        this.results = rslts;
     }
 
     @Override
     public Response act(final RqRegex req) throws IOException {
         final Matcher matcher = req.matcher();
+        System.out.println(matcher);
         // @checkstyle MagicNumber (1 line)
         final String path = matcher.group(3);
         if (path.isEmpty()) {
             throw new RsForward(
                 String.format("%s/index.html", matcher.group(0))
             );
         }
-        return new IoCheckedFunc<>(
+        Response response = new IoCheckedFunc<>(
             new IoCheckedBiFunc<>(this.reports).apply(
                 matcher.group(1), matcher.group(2)
             )
         ).apply(path.substring(1));
+        if (new HmRsStatus(HttpURLConnection.HTTP_NOT_FOUND).matches(response)
+            && "badge.svg".equals(matcher.group(3))) {
+            final String artifact = String.format(
+                "%s:%s", matcher.group(1), matcher.group(2)
+            );
+            final Directives dirs = new Directives().add("badge")
+                .attr("style", "round");
+            if (this.results.exists(artifact)) {
+                dirs.set(this.results.score(artifact));
+            } else {
+                dirs.set(0).attr("unknown", "true");
+            }
+            response = new RsWithType(
+                new RsText(
+                    new XSLDocument(
+                        App.class.getResourceAsStream("xsl/badge.xsl")
+                    ).with(new ClasspathSources()).transform(
+                        new XMLDocument(new Xembler(dirs).xmlQuietly())
+                    ).toString()
+                ),
+                "image/svg+xml"
+            );
+        }
+        return response;
     }
 
 }

src/main/resources/org/jpeek/xsl/badge.xsl

@@ -46,6 +46,9 @@ SOFTWARE.
         <path d="M27 0h77v20H27z">
           <xsl:attribute name="fill">
             <xsl:choose>
+              <xsl:when test="@unknown">
+                <xsl:text>#ccc</xsl:text>
+              </xsl:when>
               <xsl:when test=". &gt; 8">
                 <xsl:text>#44cc11</xsl:text>
               </xsl:when>

src/test/java/org/jpeek/web/TkReportTest.java

@@ -0,0 +1,79 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017-2019 Yegor Bugayenko
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package org.jpeek.web;
+
+import com.jcabi.matchers.XhtmlMatchers;
+import java.io.IOException;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+import org.llorllale.cactoos.matchers.Assertion;
+import org.takes.facets.fork.RqRegex;
+import org.takes.rq.RqFake;
+import org.takes.rs.RsPrint;
+
+/**
+ * Test case for {@link TkReport}.
+ * @author Yegor Bugayenko (yegor256@gmail.com)
+ * @version $Id$
+ * @since 0.23
+ * @checkstyle JavadocMethodCheck (500 lines)
+ * @checkstyle JavadocTagsCheck (500 lines)
+ */
+public final class TkReportTest {
+
+    /**
+     * Temp folder for all tests.
+     */
+    @Rule
+    @SuppressWarnings("PMD.BeanMembersShouldSerialize")
+    public TemporaryFolder folder = new TemporaryFolder();
+
+    @Test
+    public void rendersEmptySvgBadge() throws IOException {
+        new Assertion<>(
+            "Must render the badge",
+            XhtmlMatchers.xhtml(
+                new RsPrint(
+                    new TkReport(
+                        new AsyncReports(
+                            new Futures(
+                                new Reports(this.folder.newFolder().toPath())
+                            )
+                        ),
+                        new Results()
+                    ).act(
+                        new RqRegex.Fake(
+                            new RqFake(),
+                            "/([^/]+)/([^/]+)/([^/]+)",
+                            "/org.jpeek/jpeek/badge.svg"
+                        )
+                    )
+                ).printBody()
+            ),
+            XhtmlMatchers.hasXPath("//svg:svg")
+        ).affirm();
+    }
+
+}

src/test/java/org/jpeek/web/TkUploadTest.java

@@ -24,12 +24,9 @@
 package org.jpeek.web;
 
 import java.io.IOException;
-import org.cactoos.BiFunc;
-import org.cactoos.Func;
 import org.hamcrest.Matchers;
 import org.junit.Test;
 import org.llorllale.cactoos.matchers.Assertion;
-import org.takes.Response;
 import org.takes.rq.RqFake;
 import org.takes.rq.RqWithHeader;
 import org.takes.rq.multipart.RqMtFake;
@@ -47,12 +44,10 @@ public final class TkUploadTest {
 
     @Test
     public void rendersIndexPage() throws IOException {
-        final BiFunc<String, String, Func<String, Response>> reports =
-            (artifact, group) -> null;
         new Assertion<>(
             "Must upload body",
             new RsPrint(
-                new TkUpload(reports).act(
+                new TkUpload((artifact, group) -> null).act(
                     new RqMtFake(
                         new RqFake(),
                         new RqWithHeader(