Revert "De-generics-ize Post, PostText."

This reverts commit 475bf006583288e6544374ba7c5d085f0b4235f2.

Change-Id: I78bc6e061c3cd8ecc7c8794168596e26de1e6af8

11 files changed, 39 insertions, 58 deletions

diff --git a/src/main/java/eu/mulk/mulkcms2/benki/bookmarks/Bookmark.java b/src/main/java/eu/mulk/mulkcms2/benki/bookmarks/Bookmark.java
index ecfe69c..01e8a99 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/bookmarks/Bookmark.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/bookmarks/Bookmark.java
@@ -13,7 +13,7 @@ import javax.annotation.CheckForNull;
 
 @Entity
 @Table(name = "bookmarks", schema = "benki")
-public class Bookmark extends Post {
+public class Bookmark extends Post<BookmarkText> {
 
   @Column(name = "uri", nullable = false, length = -1)
   public String uri;
@@ -79,9 +79,4 @@ public class Bookmark extends Post {
     text.description = x;
     text.cachedDescriptionHtml = null;
   }
-
-  @Override
-  public BookmarkText getText() {
-    return (BookmarkText) super.getText();
-  }
 }
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/bookmarks/BookmarkText.java b/src/main/java/eu/mulk/mulkcms2/benki/bookmarks/BookmarkText.java
index 300484d..019dce5 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/bookmarks/BookmarkText.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/bookmarks/BookmarkText.java
@@ -9,7 +9,7 @@ import javax.annotation.CheckForNull;
 
 @Entity
 @Table(name = "bookmark_texts", schema = "benki")
-public class BookmarkText extends PostText {
+public class BookmarkText extends PostText<Bookmark> {
 
   @Column(name = "title", nullable = true, length = -1)
   @CheckForNull
@@ -24,9 +24,4 @@ public class BookmarkText extends PostText {
   protected String getDescriptionMarkup() {
     return description;
   }
-
-  @Override
-  public Bookmark getPost() {
-    return (Bookmark) super.getPost();
-  }
 }
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatMessage.java b/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatMessage.java
index a1d81d5..9181adf 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatMessage.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatMessage.java
@@ -12,7 +12,7 @@ import javax.annotation.CheckForNull;
 
 @Entity
 @Table(name = "lazychat_messages", schema = "benki")
-public class LazychatMessage extends Post {
+public class LazychatMessage extends Post<LazychatMessageText> {
 
   @ManyToMany
   @JoinTable(
@@ -21,7 +21,7 @@ public class LazychatMessage extends Post {
       joinColumns = {@JoinColumn(name = "referrer")},
       inverseJoinColumns = {@JoinColumn(name = "referee")})
   @JsonbTransient
-  public Collection<Post> referees;
+  public Collection<Post<?>> referees;
 
   @CheckForNull
   @Override
@@ -57,9 +57,4 @@ public class LazychatMessage extends Post {
     text.cachedDescriptionHtml = null;
     text.content = x;
   }
-
-  @Override
-  public LazychatMessageText getText() {
-    return (LazychatMessageText) super.getText();
-  }
 }
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatMessageText.java b/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatMessageText.java
index ace7529..1a84909 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatMessageText.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatMessageText.java
@@ -9,7 +9,7 @@ import javax.annotation.CheckForNull;
 
 @Entity
 @Table(name = "lazychat_message_texts", schema = "benki")
-public class LazychatMessageText extends PostText {
+public class LazychatMessageText extends PostText<LazychatMessage> {
 
   @Column(name = "content", nullable = true, length = -1)
   @CheckForNull
@@ -21,9 +21,4 @@ public class LazychatMessageText extends PostText {
   protected String getDescriptionMarkup() {
     return content;
   }
-
-  @Override
-  public LazychatMessage getPost() {
-    return (LazychatMessage) super.getPost();
-  }
 }
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/newsletter/Newsletter.java b/src/main/java/eu/mulk/mulkcms2/benki/newsletter/Newsletter.java
index 9c21e69..aaac084 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/newsletter/Newsletter.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/newsletter/Newsletter.java
@@ -25,5 +25,5 @@ public class Newsletter extends PanacheEntityBase {
 
   @OneToMany(mappedBy = "newsletter", fetch = FetchType.LAZY)
   @OrderBy("date")
-  public Collection<Post> posts;
+  public Collection<Post<?>> posts;
 }
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/newsletter/NewsletterSender.java b/src/main/java/eu/mulk/mulkcms2/benki/newsletter/NewsletterSender.java
index 5f7937f..ae1ef9e 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/newsletter/NewsletterSender.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/newsletter/NewsletterSender.java
@@ -53,7 +53,7 @@ public class NewsletterSender {
   void run() throws InterruptedException, TimeoutException, ExecutionException {
     var session = em.unwrap(Session.class);
 
-    List<Post> posts =
+    List<Post<?>> posts =
         Post.find(
                 """
                 SELECT DISTINCT p FROM Post p
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/posts/Post.java b/src/main/java/eu/mulk/mulkcms2/benki/posts/Post.java
index 20fcabe..b0aa615 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/posts/Post.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/posts/Post.java
@@ -44,6 +44,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
+import java.util.TimeZone;
 import java.util.stream.Collectors;
 import javax.annotation.CheckForNull;
 import org.hibernate.annotations.Type;
@@ -52,7 +53,7 @@ import org.hibernate.annotations.Where;
 @Entity
 @Table(name = "posts", schema = "benki")
 @Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
-public abstract class Post extends PanacheEntityBase {
+public abstract class Post<Text extends PostText<?>> extends PanacheEntityBase {
 
   public enum Scope {
     top_level,
@@ -118,11 +119,15 @@ public abstract class Post extends PanacheEntityBase {
   @JsonbTransient
   public Collection<LazychatMessage> comments;
 
-  @OneToMany(mappedBy = "post", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
+  @OneToMany(
+      mappedBy = "post",
+      fetch = FetchType.LAZY,
+      cascade = CascadeType.ALL,
+      targetEntity = PostText.class)
   @MapKey(name = "language")
-  public Map<String, PostText> texts = new HashMap<>();
+  public Map<String, Text> texts = new HashMap<>();
 
-  public Map<String, PostText> getTexts() {
+  public Map<String, Text> getTexts() {
     return texts;
   }
 
@@ -148,7 +153,7 @@ public abstract class Post extends PanacheEntityBase {
     }
   }
 
-  protected static <T extends Post> CriteriaBuilder<T> queryViewable(
+  protected static <T extends Post<?>> CriteriaBuilder<T> queryViewable(
       Class<T> entityClass,
       @CheckForNull User reader,
       @CheckForNull User owner,
@@ -241,7 +246,7 @@ public abstract class Post extends PanacheEntityBase {
     return scope == Scope.top_level;
   }
 
-  public static class Day<T extends Post> {
+  public static class Day<T extends Post<? extends PostText<?>>> {
     public final @CheckForNull LocalDate date;
     public final List<T> posts;
 
@@ -257,12 +262,14 @@ public abstract class Post extends PanacheEntityBase {
     }
   }
 
-  public static class PostPage<T extends Post> {
+  public static class PostPage<T extends Post<? extends PostText<?>>> {
     public @CheckForNull final Integer prevCursor;
     public @CheckForNull final Integer cursor;
     public @CheckForNull final Integer nextCursor;
     public final List<T> posts;
 
+    private static final TimeZone timeZone = TimeZone.getDefault();
+
     public PostPage(
         @CheckForNull Integer c0,
         @CheckForNull Integer c1,
@@ -289,7 +296,7 @@ public abstract class Post extends PanacheEntityBase {
     }
   }
 
-  public static PostPage<Post> findViewable(
+  public static PostPage<Post<? extends PostText<?>>> findViewable(
       PostFilter postFilter,
       EntityManager em,
       CriteriaBuilderFactory cbf,
@@ -298,7 +305,7 @@ public abstract class Post extends PanacheEntityBase {
     return findViewable(postFilter, em, cbf, viewer, owner, null, null, null);
   }
 
-  public static PostPage<Post> findViewable(
+  public static PostPage<Post<? extends PostText<?>>> findViewable(
       PostFilter postFilter,
       EntityManager em,
       CriteriaBuilderFactory cbf,
@@ -321,7 +328,7 @@ public abstract class Post extends PanacheEntityBase {
     return findViewable(entityClass, em, cbf, viewer, owner, cursor, count, searchQuery);
   }
 
-  protected static <T extends Post> PostPage<T> findViewable(
+  protected static <T extends Post<? extends PostText<?>>> PostPage<T> findViewable(
       Class<? extends T> entityClass,
       EntityManager em,
       CriteriaBuilderFactory cbf,
@@ -372,7 +379,7 @@ public abstract class Post extends PanacheEntityBase {
     return new PostPage<>(prevCursor, cursor, nextCursor, forwardResults);
   }
 
-  public static <T extends Post> void fetchTexts(Collection<T> posts) {
+  public static <T extends Post<?>> void fetchTexts(Collection<T> posts) {
     var postIds = posts.stream().map(x -> x.id).collect(toList());
 
     if (!postIds.isEmpty()) {
@@ -382,7 +389,7 @@ public abstract class Post extends PanacheEntityBase {
   }
 
   @CheckForNull
-  public PostText getText() {
+  public Text getText() {
     var texts = getTexts();
     if (texts.isEmpty()) {
       return null;
@@ -410,7 +417,7 @@ public abstract class Post extends PanacheEntityBase {
     if (!(o instanceof Post)) {
       return false;
     }
-    Post post = (Post) o;
+    Post<?> post = (Post<?>) o;
     return Objects.equals(id, post.id);
   }
 
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/posts/PostResource.java b/src/main/java/eu/mulk/mulkcms2/benki/posts/PostResource.java
index 4f7a43e..db613ae 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/posts/PostResource.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/posts/PostResource.java
@@ -91,7 +91,7 @@ public abstract class PostResource {
   @CheckedTemplate
   static class Templates {
 
-    public static native <P extends Post> TemplateInstance postList(
+    public static native <P extends Post<?>> TemplateInstance postList(
         List<Post.Day<P>> postDays,
         @CheckForNull String feedUri,
         String pageTitle,
@@ -242,7 +242,7 @@ public abstract class PostResource {
   @GET
   @Produces(APPLICATION_JSON)
   @Path("{id}")
-  public Post getPostJson(@PathParam("id") int id) {
+  public Post<?> getPostJson(@PathParam("id") int id) {
     return getPostIfVisible(id);
   }
 
@@ -253,7 +253,7 @@ public abstract class PostResource {
     var post = getPostIfVisible(id);
 
     return Templates.postList(
-        new PostPage<>(null, null, null, List.of(post)).days(),
+        new PostPage<Post<? extends PostText<?>>>(null, null, null, List.of(post)).days(),
         null,
         String.format("Post #%d", id),
         false,
@@ -319,7 +319,7 @@ public abstract class PostResource {
           Response.status(Status.BAD_REQUEST).entity("invalid hashcash").build());
     }
 
-    Post post = Post.findById(postId);
+    Post<?> post = Post.findById(postId);
 
     var comment = new LazychatMessage();
     comment.date = OffsetDateTime.now();
@@ -509,7 +509,7 @@ public abstract class PostResource {
     return entityManager.unwrap(Session.class);
   }
 
-  protected static void assignPostTargets(Post.Visibility visibility, User user, Post post) {
+  protected static void assignPostTargets(Post.Visibility visibility, User user, Post<?> post) {
     switch (visibility) {
       case PUBLIC:
         post.targets = Set.of(Role.getWorld());
@@ -525,7 +525,7 @@ public abstract class PostResource {
     }
   }
 
-  protected final Post getPostIfVisible(int id) {
+  protected final Post<?> getPostIfVisible(int id) {
     @CheckForNull var user = getCurrentUser();
     var message = getSession().byId(Post.class).load(id);
 
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/posts/PostText.java b/src/main/java/eu/mulk/mulkcms2/benki/posts/PostText.java
index 177c590..5bc94c8 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/posts/PostText.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/posts/PostText.java
@@ -27,7 +27,7 @@ import org.hibernate.annotations.Type;
 @Table(name = "post_texts", schema = "benki")
 @Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
 @IdClass(PostTextPK.class)
-public abstract class PostText extends PanacheEntityBase {
+public abstract class PostText<OwningPost extends Post<?>> extends PanacheEntityBase {
 
   private static final int DESCRIPTION_CACHE_VERSION = 1;
 
@@ -52,14 +52,10 @@ public abstract class PostText extends PanacheEntityBase {
   @Type(value = PostgreSQLTSVectorType.class)
   public String searchTerms;
 
-  @ManyToOne(fetch = FetchType.LAZY)
+  @ManyToOne(fetch = FetchType.LAZY, targetEntity = Post.class)
   @JoinColumn(name = "post", referencedColumnName = "id", nullable = false)
   @JsonbTransient
-  public Post post;
-
-  public Post getPost() {
-    return post;
-  }
+  public OwningPost post;
 
   @CheckForNull
   public final String getDescriptionHtml() {
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/posts/PostTextPK.java b/src/main/java/eu/mulk/mulkcms2/benki/posts/PostTextPK.java
index b057ac5..74ad89e 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/posts/PostTextPK.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/posts/PostTextPK.java
@@ -1,10 +1,7 @@
 package eu.mulk.mulkcms2.benki.posts;
 
 import jakarta.persistence.Column;
-import jakarta.persistence.FetchType;
 import jakarta.persistence.Id;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.ManyToOne;
 import java.io.Serializable;
 import java.util.Objects;
 
@@ -43,7 +40,8 @@ public class PostTextPK implements Serializable {
       return false;
     }
     PostTextPK that = (PostTextPK) o;
-    return Objects.equals(getPostId(), that.getPostId()) && getLanguage().equals(that.getLanguage());
+    return Objects.equals(getPostId(), that.getPostId())
+        && getLanguage().equals(that.getLanguage());
   }
 
   @Override
diff --git a/src/main/resources/templates/PostResource/postList.html b/src/main/resources/templates/PostResource/postList.html
index 434c22a..89267a2 100644
--- a/src/main/resources/templates/PostResource/postList.html
+++ b/src/main/resources/templates/PostResource/postList.html
@@ -1,4 +1,4 @@
-{@java.util.List<eu.mulk.mulkcms2.benki.posts.Post$Day<eu.mulk.mulkcms2.benki.posts.Post>> postDays}
+{@java.util.List<eu.mulk.mulkcms2.benki.posts.Post$Day<eu.mulk.mulkcms2.benki.posts.Post<?>>> postDays}
 {@java.lang.String feedUri}
 {@java.lang.String pageTitle}
 {@boolean showBookmarkForm}