Add a book controller and various amenities to Diviner's live view

Summary: Ref T988. Mostly backend changes, with a very rough frontend on top of them. See Conpherence discussion.

Test Plan: {F45010}

Reviewers: btrahan, chad

Reviewed By: chad

CC: aran

Maniphest Tasks: T988

Differential Revision: https://secure.phabricator.com/D6113

src/applications/diviner/controller/DivinerBookController.php

@@ -0,0 +1,112 @@
+<?php
+
+final class DivinerBookController extends DivinerController {
+
+  private $bookName;
+
+  public function shouldAllowPublic() {
+    return true;
+  }
+
+  public function willProcessRequest(array $data) {
+    $this->bookName = $data['book'];
+  }
+
+  public function processRequest() {
+    $request = $this->getRequest();
+    $viewer = $request->getUser();
+
+    $book = id(new DivinerBookQuery())
+      ->setViewer($viewer)
+      ->withNames(array($this->bookName))
+      ->executeOne();
+
+    if (!$book) {
+      return new Aphront404Response();
+    }
+
+    $crumbs = $this->buildApplicationCrumbs();
+
+    $crumbs->addCrumb(
+      id(new PhabricatorCrumbView())
+        ->setName($book->getTitle())
+        ->setHref('/book/'.$book->getName().'/'));
+
+    $header = id(new PhabricatorHeaderView())->setHeader($book->getTitle());
+    $properties = $this->buildPropertyList($book);
+
+    $atoms = id(new DivinerAtomQuery())
+      ->setViewer($viewer)
+      ->withBookPHIDs(array($book->getPHID()))
+      ->execute();
+    $atoms = msort($atoms, 'getSortKey');
+
+    $group_spec = $book->getConfig('groups');
+    if (!is_array($group_spec)) {
+      $group_spec = array();
+    }
+
+    $groups = mgroup($atoms, 'getGroupName');
+    $groups = array_select_keys($groups, array_keys($group_spec)) + $groups;
+    if (isset($groups[''])) {
+      $no_group = $groups[''];
+      unset($groups['']);
+      $groups[''] = $no_group;
+    }
+
+    $out = array();
+    foreach ($groups as $group => $atoms) {
+      $group_info = idx($group_spec, $group);
+      if (!is_array($group_info)) {
+        $group_info = array();
+      }
+
+      $group_name = idx($group_info, 'name');
+      if (!strlen($group_name)) {
+        if (strlen($group)) {
+          $group_name = $group;
+        } else {
+          $group_name = pht('Free Radicals');
+        }
+      }
+
+      $out[] = id(new PhabricatorHeaderView())
+        ->setHeader($group_name);
+      $out[] = $this->renderAtomList($atoms);
+    }
+
+    return $this->buildApplicationPage(
+      array(
+        $crumbs,
+        $header,
+        $properties,
+        $out,
+      ),
+      array(
+        'title' => $book->getTitle(),
+        'dust' => true,
+        'device' => true,
+      ));
+  }
+
+  private function buildPropertyList(DivinerLiveBook $book) {
+    $user = $this->getRequest()->getUser();
+    $view = id(new PhabricatorPropertyListView())
+      ->setUser($user);
+
+    $policies = PhabricatorPolicyQuery::renderPolicyDescriptions(
+      $user,
+      $book);
+
+    $view->addProperty(
+      pht('Visible To'),
+      $policies[PhabricatorPolicyCapability::CAN_VIEW]);
+
+    $view->addProperty(
+      pht('Updated'),
+      phabricator_datetime($book->getDateModified(), $user));
+
+    return $view;
+  }
+
+}