Namespaces,

finally. Creation of them still TODO
Also brought back account IDs.

src/main/java/eu/m724/talkpages/Startup.java

@@ -22,9 +22,6 @@ public class Startup {
     @ConfigProperty(name = "talkpages.systemUser.name")
     private String username;
 
-    @ConfigProperty(name = "talkpages.createExamplePage")
-    private boolean createExamplePage;
-
     void installStaticRoute(@Observes StartupEvent startupEvent, Router router) {
         router.route()
                 .path("/static/*")
@@ -33,7 +30,7 @@ public class Startup {
 
     @Transactional
     public void examplePage(@Observes StartupEvent ignoredEvent) {
-        if (Account.findById(1) != null) {
+        if (Account.findByName(username) != null) {
             // system user exists so assuming this is not the first run
             return;
         }
@@ -43,15 +40,18 @@ public class Startup {
         Account account = new Account(username);
         account.persistAndFlush();
 
-        if (createExamplePage) {
-            addPage(account, "TalkPages", "<p>A website where the users collaboratively create content</p><ul><li><a href=\"https://git.m724.eu/Minecon724/talkpages\">Source code</a></li></ul>");
+        Page talkPagesPage = addPage(account, "TalkPages", "<p>A website where the users collaboratively create content</p><ul><li><a href=\"https://git.m724.eu/Minecon724/talkpages\">Source code</a></li></ul>");
         addPage(account, "Talkpages", "ambiguous for [TalkPages]");
         addPage(account, "TP", "@TalkPages");
-        }
+
+        Page tosPage = addPage(account, "Terms of Service", "TODO");
+        addPage(account, "ToS", "@TalkPages/Terms of Service");
+
+        tosPage.setParentPage(talkPagesPage);
     }
 
     @Transactional
-    public void addPage(Account account, String title, String content) {
+    public Page addPage(Account account, String title, String content) {
         Page page = new Page(title);
         PageRevision revision = new PageRevision(page, account, content);
 
@@ -59,6 +59,6 @@ public class Startup {
         page.persistAndFlush();
 
         account.getRevisions().add(revision);
-
+        return page;
     }
 }

src/main/java/eu/m724/talkpages/auth/AuthService.java

@@ -25,7 +25,7 @@ public class AuthService {
      */
     @Transactional
     Session register(String username, String password) throws UsernameExistsException {
-        Account account = Account.findById(username);
+        Account account = Account.findByName(username);
 
         if (account != null) {
             throw new UsernameExistsException();
@@ -63,7 +63,7 @@ public class AuthService {
 
     @Transactional
     Session authenticate(String username, String password) throws InvalidCredentialsException {
-        Account account = Account.findById(username);
+        Account account = Account.findByName(username);
 
         if (account == null) {
             throw new InvalidCredentialsException(false);

src/main/java/eu/m724/talkpages/orm/entity/auth/Account.java

@@ -14,8 +14,13 @@ import java.util.List;
 import java.util.Set;
 
 // TODO consider moving away authentication to allow like multiple profiles on one account
+// TODO also consider giving different, namespaced ids to system and addressed accounts
 @Entity
-public class Account extends PanacheEntityBase {
+@Table(
+        indexes = @Index(name = "idx_name", columnList = "name"),
+        uniqueConstraints = @UniqueConstraint(columnNames = "name")
+)
+public class Account extends PanacheEntity {
     private Account() {}
 
     /**
@@ -46,7 +51,6 @@ public class Account extends PanacheEntityBase {
 
     // Columns
 
-    @Id
     private String name;
 
     private String slug;
@@ -72,4 +76,11 @@ public class Account extends PanacheEntityBase {
     public List<PageRevision> getRevisions() { return revisions; }
 
     public boolean isSystemAccount() { return password == null; }
+
+
+    // Operations
+
+    public static Account findByName(String name) {
+        return Account.find("name", name).firstResult();
+    }
 }

src/main/java/eu/m724/talkpages/orm/entity/content/Page.java

@@ -1,35 +1,29 @@
 package eu.m724.talkpages.orm.entity.content;
 
+import eu.m724.talkpages.page.action.NoSuchNamespaceException;
 import io.quarkus.hibernate.orm.panache.PanacheEntity;
-import io.quarkus.hibernate.orm.panache.PanacheEntityBase;
 import jakarta.persistence.*;
-import org.hibernate.annotations.GenericGenerator;
 
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 @Entity
 @Table(
         indexes = @Index(name = "idx_title", columnList = "title"),
-        uniqueConstraints = @UniqueConstraint(columnNames = "title")
+        uniqueConstraints = @UniqueConstraint(columnNames = {"title", "parentPage"})
 )
-public class Page extends PanacheEntityBase {
+public class Page extends PanacheEntity {
     private Page() {}
 
     public Page(String title) {
-        // TODO maybe map space to _
-        this.slug = URLEncoder.encode(title, StandardCharsets.UTF_8).replace("+", "%20");
         this.title = title;
     }
 
     // Columns
 
-    @Id
-    private String slug;
-
-    // TODO is this really necessary
     private String title;
 
     @OneToOne
@@ -38,21 +32,103 @@ public class Page extends PanacheEntityBase {
     @OneToMany(cascade = CascadeType.ALL, orphanRemoval = true)
     private List<PageRevision> revisions = new ArrayList<>();
 
+    @OneToMany(cascade = {CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REFRESH}, mappedBy = "parentPage")
+    private List<Page> subpages = new ArrayList<>();
+
+    @ManyToOne
+    @JoinColumn(name = "parentPage_id")
+    private Page parentPage = null;
+
+
+    // Hooks
+
+    @PreRemove
+    private void preRemove() {
+        subpages.forEach(page -> page.parentPage = null);
+    }
+
 
     // Getters
 
-    public String getSlug() { return slug; }
     public String getTitle() { return title; }
     public PageRevision getLatestRevision() { return latestRevision; }
     public List<PageRevision> getRevisions() { return revisions; }
+    public List<Page> getSubpages() { return subpages; }
+    public Page getParentPage() { return parentPage; }
 
     public void setLatestRevision(PageRevision pageRevision) {
         revisions.add(pageRevision);
         latestRevision = pageRevision;
     }
 
+    public void setParentPage(Page parentPage) {
+        // Remove from current parent, if any
+        if (this.parentPage != null)
+            parentPage.subpages.remove(this);
+
+        // Set the parent page and add as a child
+        this.parentPage = parentPage;
+        if (parentPage != null)
+            parentPage.getSubpages().add(this);
+    }
+
+    public String getSlug() {
+        // TODO maybe map space to _
+        return URLEncoder.encode(title, StandardCharsets.UTF_8).replace("+", "%20");
+    }
+
+    /**
+     * Chain of parents. The broadest (root) one is the first one.<br>
+     * The list is empty if there's no parents.
+     *
+     * @return chain of parents
+     */
+    public List<Page> getChain() {
+        List<Page> parents = new ArrayList<>();
+
+        Page parent = this.getParentPage();
+        while (parent != null) {
+            parents.add(parent);
+            parent = parent.getParentPage();
+        }
+
+        return parents.reversed();
+    }
+
     // Operations
 
+    /**
+     * Find a {@link Page} by title. The title must not be encoded.<br>
+     * Separate namespaces with a slash (<code>/</code>)<br>
+     *
+     * @param title the title, not encoded
+     * @return page if found, else null
+     * @throws IllegalStateException if
+     */
+    public static Page findByPath(String title) {
+        String[] parts = title.split("/", -1);
+
+        Page page = findByTitle(parts[0]);
+
+        for (int i=1; i<parts.length; i++) {
+            String part = parts[i];
+
+            // those checks apply to the previous iteration, but won't run on the last one
+            if (page == null)
+                break; // TODO maybe raise an error here
+
+            if (page.title.isBlank())
+                throw new IllegalStateException("Can't have empty title in the middle"); // TODO also enforce
+
+
+            page = page.getSubpages().stream()
+                    .filter(p -> p.getTitle().equals(part))
+                    .findFirst().orElse(null); // TODO optimize
+        }
+
+        return page;
+    }
+
     public static Page findByTitle(String title) {
         return find("title", title).firstResult();
     }

src/main/java/eu/m724/talkpages/orm/entity/content/PageRevision.java

@@ -9,7 +9,7 @@ import java.time.LocalDateTime;
 
 @Entity
 @Table(
-        indexes = @Index(columnList = "page_slug"),
+        indexes = @Index(columnList = "page_id"),
         uniqueConstraints = @UniqueConstraint(columnNames = {"id", "index"})
 )
 public class PageRevision extends PanacheEntity {
@@ -49,7 +49,7 @@ public class PageRevision extends PanacheEntity {
     private Account author;
 
     // TODO wondering about a table only for content and meta and title perhaps
-    @Column(columnDefinition="text")
+    @Column(columnDefinition = "text")
     private String content;
 
     private int delta;

src/main/java/eu/m724/talkpages/page/HistoryResource.java

@@ -34,7 +34,7 @@ public class HistoryResource {
     }
 
     @GET
-    @Path("/{title}")
+    @Path("/{title:.+}")
     public Response pageHistory(@PathParam("title") String title) {
         Page page = Page.findByTitle(title);
 

src/main/java/eu/m724/talkpages/page/PageResource.java

@@ -35,16 +35,16 @@ public class PageResource {
     }
 
     @GET
-    @Path("/{pageId}")
-    public Response viewPage(@PathParam("pageId") String pageId, @QueryParam("revision") Integer revisionId, @QueryParam("redirectFrom") String redirectFrom) {
-        Page page = Page.findByTitle(pageId);
+    @Path("/{title:.+}")
+    public Response viewPage(@PathParam("title") String title, @QueryParam("revision") Integer revisionId, @QueryParam("redirectFrom") String redirectFrom) {
+        Page page = Page.findByPath(title);
 
         if (page == null) {
-            List<Page> suggestions = Page.findByTitleIgnoreCase(pageId);
+            List<Page> suggestions = Page.findByTitleIgnoreCase(title);
             if (suggestions.size() == 1) {
                 return redirectService.page(suggestions.getFirst()).build();
             }
-            return Response.status(Response.Status.NOT_FOUND).entity(Templates.notFound(pageId, suggestions)).build();
+            return Response.status(Response.Status.NOT_FOUND).entity(Templates.notFound(title, suggestions)).build();
         }
 
         if (revisionId == null) {
@@ -52,7 +52,7 @@ public class PageResource {
             if (revision.getContent().startsWith("@")) {
                 String target = revision.getContent().substring(1);
                 if (redirectFrom == null)
-                    redirectFrom = pageId;
+                    redirectFrom = title;
                 return Response.temporaryRedirect(URI.create("/page/" + redirectService.titleEncoded(target) + "?redirectFrom=" + URLEncoder.encode(redirectFrom, StandardCharsets.UTF_8))).build();
             }
             return Response.ok().entity(Templates.page(page, page.getLatestRevision(), false)).build();

src/main/java/eu/m724/talkpages/page/action/NoSuchNamespaceException.java

@@ -0,0 +1,9 @@
+package eu.m724.talkpages.page.action;
+
+public class NoSuchNamespaceException extends RuntimeException {
+    public final String namespace;
+
+    public NoSuchNamespaceException(String namespace) {
+        this.namespace = namespace;
+    }
+}

src/main/resources/application.properties

@@ -1,10 +1,9 @@
 talkpages.homePage=/
 talkpages.systemUser.name=System
-talkpages.createExamplePage=true
 
 quarkus.http.auth.basic=true
 
-quarkus.hibernate-orm.database.generation=drop-and-create
+quarkus.hibernate-orm.database.generation=update
 
 quarkus.datasource.db-kind=h2
 quarkus.datasource.username=username-default

src/main/resources/templates/PageResource/page.html

@@ -1,4 +1,4 @@
-{#include layout}
+{#include layout customTitle=true noHeading=true}
     {#header}
         {#if http:param("redirectFrom") != null}
             <p>Redirected from {http:param("redirectFrom")}</p>
@@ -15,9 +15,23 @@
                 <h4>This is the current revision #{revision.index} authored by {revision.author.name}.</h4>
             {/if}
         {/if}
+
     {/header}
 
-    {#pageTitle}{page.title}{/pageTitle}
+    {#pageTitle}{page.getTitle} - TalkPages{/pageTitle}
+
+    {#if page.getChain.isEmpty} <!-- TODO don't repeat that -->
+        <h1>{page.getTitle}</h1>
+    {#else}
+        <h1>
+            <small>
+                {#for parent in page.getChain}
+                    <a href="/page/{parent.getSlug}">{parent.getTitle}</a> /
+                {/for}
+            </small>
+            {page.getTitle}
+        </h1>
+    {/if}
 
     {revision.content.sanitizeContent.raw}
 

src/main/resources/templates/layout.html

@@ -4,6 +4,7 @@
         <meta charset="UTF-8" />
         <meta name="viewport" content="width=device-width, initial-scale=1" />
         <!-- TODO opengraph tags and maybe some nice css. also add errors and stuff here -->
+        <link rel="stylesheet" href="/static/style.css">
         {#if theme:darkTheme}
             <link rel="stylesheet" href="/static/dark.css">
         {/if}
@@ -11,7 +12,10 @@
     </head>
     <body>
         {#insert header}{/}
+
+        {#if !noHeading??}
             <h1>{#insert pageTitle /}</h1>
+        {/if}
 
         {#insert}{/}
     </body>