Revert "[broken] Remove the BookDownloadThread again"

This reverts commit 8f346f17e4.

MinimalBible/src/main/java/org/bspeice/minimalbible/activities/downloader/manager/BookDownloadThread.java

@@ -0,0 +1,60 @@
+package org.bspeice.minimalbible.activities.downloader.manager;
+
+import android.util.Log;
+
+import org.bspeice.minimalbible.MinimalBible;
+import org.crosswire.jsword.book.Book;
+import org.crosswire.jsword.book.install.InstallException;
+import org.crosswire.jsword.book.install.Installer;
+
+import javax.inject.Inject;
+
+/**
+ * Thread that handles downloading a book
+ */
+//TODO: Refactor to BookDownloadManager, downloadBook() creates its own thread
+public class BookDownloadThread {
+
+    private final String TAG = "BookDownloadThread";
+
+    @Inject
+    DownloadManager downloadManager;
+    @Inject RefreshManager refreshManager;
+
+    public BookDownloadThread() {
+        MinimalBible.getApplication().inject(this);
+    }
+
+    public void downloadBook(final Book b) {
+        // So, the JobManager can't be injected, but we'll make do
+
+        // First, look up where the Book came from
+        final Installer i = refreshManager.installerFromBook(b);
+
+        final Thread worker = new Thread() {
+            @Override
+            public void run() {
+                try {
+                    i.install(b);
+                } catch (InstallException e) {
+                    Log.d(TAG, e.getMessage());
+                }
+            }
+        };
+        worker.start();
+        // The worker automatically communicates with the JobManager for its progress.
+
+        downloadManager.getDownloadBus().post(new DLProgressEvent(DLProgressEvent.PROGRESS_BEGINNING, b));
+    }
+
+    /**
+     * Build what the installer creates the job name as.
+     * Likely prone to be brittle.
+     * TODO: Make sure to test that this is an accurate job name
+     * @param b The book to predict the download job name of
+     * @return The name of the job that will/is download/ing this book
+     */
+    public static String getJobId(Book b) {
+        return "INSTALL_BOOK-" + b.getInitials();
+    }
+}