zerocracy#559 adding skills to people

src/main/groovy/com/zerocracy/stk/pmo/people/update_skills.groovy

@@ -22,11 +22,11 @@ import com.zerocracy.farm.Assume
 
 def exec(Project pmo, XML xml) {
   new Assume(pmo, xml).isPmo()
+  new Assume(pmo, xml).type('Ping daily')
   /**
-   * @todo #492:30min Let's implement this stakeholder. It will take
-   *  a random user from the list, which has the oldest updated attribute,
-   *  go to its GitHub account, fetch all repositories he owns and contributes
-   *  to and fetch the most popular languages from them.
-   *  GitHub provides that information.
+   * @todo #559:30min Create a method People.oldestSkillsUpdate to retrieve the
+   *  login of the user that needs theirs skills updated and fetch all
+   *  repositories he owns and contributes to and fetch the most popular
+   *  languages from them. GitHub provides that information.
    */
-}
+}

src/main/java/com/zerocracy/pmo/People.java

@@ -27,9 +27,11 @@
 import com.zerocracy.cash.CashParsingException;
 import com.zerocracy.pm.staff.Roles;
 import java.io.IOException;
+import java.time.Instant;
 import java.util.Date;
 import java.util.Iterator;
 import org.cactoos.iterable.ItemAt;
+import org.cactoos.iterable.Joined;
 import org.cactoos.iterable.Mapped;
 import org.cactoos.scalar.NumberOf;
 import org.cactoos.scalar.UncheckedScalar;
@@ -846,6 +848,58 @@ public Date appliedTime(final String uid) throws IOException {
         }
     }
 
+    /**
+     * Skills of a person
+     * @param uid Person's login
+     * @return Iterable with skills
+     * @throws IOException If fails
+     */
+    public Iterable<String> skills(final String uid) throws IOException {
+        try (final Item item = this.item()) {
+            return new Mapped<>(
+                xml -> xml.node().getTextContent(),
+                new Xocument(item.path()).nodes(
+                    String.format(
+                        "/people/person[@id = '%s']/skills/skill",
+                        uid
+                    )
+                )
+            );
+        }
+    }
+
+    /**
+     * Update the list of user skills.
+     * @param uid User id
+     * @param skills List of skills
+     * @throws IOException If fails
+     */
+    public void skills(final String uid, final Iterable<String> skills)
+        throws IOException {
+        this.checkExisting(uid);
+        try (final Item item = this.item()) {
+            new Xocument(item.path()).modify(
+                new Directives().xpath(
+                    String.format(
+                        "/people/person[@id='%s']/skills",
+                        uid
+                    )
+                )
+                    .remove()
+                    .add("skills").attr("updated", Instant.now())
+                    .append(
+                        new Joined<>(
+                            new Mapped<>(
+                                skill -> new Directives().add("skill")
+                                    .set(skill).up(),
+                                skills
+                            )
+                        )
+                    )
+            );
+        }
+    }
+
     /**
      * The item.
      * @return Item
@@ -874,7 +928,7 @@ private static Directives start(final String uid) {
             .add("jobs").set("0").up()
             .add("projects").set("0").up()
             .add("speed").set("0.0").up()
-            .add("skills").attr("updated", new DateAsText().asString()).up()
+            .add("skills").attr("updated", Instant.now()).up()
             .add("links")
             .add("link")
             .attr("rel", "github")

src/main/java/com/zerocracy/tk/TkTeam.java

@@ -46,6 +46,8 @@
  * @todo #1121:30min Speed and Agenda is skipped now because it
  *  causes slow page loading. We have to fix #1121 bug and show
  *  it on page as before.
+ * @todo #559:30min Let's display the data from people/skills on the profile
+ * page of a given user as well as on the team page.
  */
 @SuppressWarnings("PMD.AvoidDuplicateLiterals")
 public final class TkTeam implements Take {

src/test/java/com/zerocracy/pmo/PeopleTest.java

@@ -24,8 +24,10 @@
 import com.zerocracy.farm.fake.FkProject;
 import java.io.IOException;
 import java.nio.file.Files;
+import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
+import org.cactoos.iterable.IterableOf;
 import org.cactoos.iterable.Mapped;
 import org.cactoos.iterable.RangeOf;
 import org.cactoos.list.ListOf;
@@ -549,6 +551,20 @@ public void setsLinks() throws Exception {
         );
     }
 
+    @Test
+    public void setsSkills() throws IOException {
+        final People people =
+            new People(new FkFarm(new FkProject())).bootstrap();
+        final String uid = "user";
+        people.invite(uid, "0crat");
+        final Iterable<String> skills = new IterableOf<>("c", "cobol");
+        people.skills(uid, skills);
+        MatcherAssert.assertThat(
+            new ArrayList<>(new ListOf<>(people.skills(uid))),
+            Matchers.equalTo(new ArrayList<>(new ListOf<>(skills)))
+        );
+    }
+
     private void failsWallet(final String bank, final String wallet)
         throws IOException {
         final FkFarm farm = new FkFarm(new FkProject());