✨ Generate CSS snippet for referenced fonts

src/main/java/dev/ebullient/convert/io/FontRef.java

@@ -0,0 +1,53 @@
+package dev.ebullient.convert.io;
+
+public class FontRef {
+    /** Font family */
+    public final String fontFamily;
+    /** Path to font source (unresolved local or remote) */
+    public final String sourcePath;
+
+    boolean hasTextReference = false;
+
+    private FontRef(String fontFamily, String sourcePath) {
+        this.fontFamily = fontFamily;
+        this.sourcePath = sourcePath;
+    }
+
+    public void addTextReference() {
+        hasTextReference = true;
+    }
+
+    public boolean hasTextReference() {
+        return hasTextReference;
+    }
+
+    @Override
+    public String toString() {
+        return "FontRef [fontFamily=" + fontFamily + ", sourcePath=" + sourcePath + "]";
+    }
+
+    public static String fontFamily(String fontPath) {
+        fontPath = fontPath.trim();
+        int pos1 = fontPath.lastIndexOf('/');
+        int pos2 = fontPath.lastIndexOf('.');
+        if (pos1 > 0 && pos2 > 0) {
+            fontPath = fontPath.substring(pos1 + 1, pos2);
+        } else if (pos1 > 0) {
+            fontPath = fontPath.substring(pos1 + 1);
+        } else if (pos2 > 0) {
+            fontPath = fontPath.substring(0, pos2);
+        }
+        return fontPath;
+    }
+
+    public static FontRef of(String fontString) {
+        return of(fontFamily(fontString), fontString);
+    }
+
+    public static FontRef of(String fontFamily, String fontString) {
+        if (fontString == null || fontString.isEmpty()) {
+            return null;
+        }
+        return new FontRef(fontFamily, fontString);
+    }
+}

src/main/java/dev/ebullient/convert/io/Templates.java

@@ -1,8 +1,10 @@
 package dev.ebullient.convert.io;
 
 import java.io.IOException;
+import java.io.InputStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.util.Base64;
 import java.util.Collection;
 
 import jakarta.enterprise.context.ApplicationScoped;
@@ -103,4 +105,23 @@ public String renderIndex(String name, Collection<FileMap> resources) {
             return "%% ERROR: " + message + " %%";
         }
     }
+
+    public String renderCss(FontRef fontRef, InputStream data) throws IOException {
+        Template tpl = customTemplateOrDefault("css-font.txt");
+        try {
+            String encoded = Base64.getEncoder().encodeToString(data.readAllBytes());
+            int extpos = fontRef.sourcePath.lastIndexOf(".");
+            String type = fontRef.sourcePath.substring(extpos + 1);
+            return tpl
+                    .data("fontFamily", fontRef.fontFamily)
+                    .data("type", type)
+                    .data("encoded", encoded)
+                    .render();
+        } catch (TemplateException tex) {
+            Throwable cause = tex.getCause();
+            String message = cause != null ? cause.toString() : tex.toString();
+            tui.error(tex, message);
+            return "%% ERROR: " + message + " %%";
+        }
+    }
 }

src/main/java/dev/ebullient/convert/io/Tui.java

@@ -1,9 +1,11 @@
 package dev.ebullient.convert.io;
 
+import java.io.BufferedInputStream;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.PrintWriter;
+import java.net.URI;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
@@ -55,6 +57,12 @@
 
 @ApplicationScoped
 public class Tui {
+    static Tui instance;
+
+    public static Tui instance() {
+        return instance;
+    }
+
     public final static TypeReference<List<String>> LIST_STRING = new TypeReference<>() {
     };
     public final static TypeReference<List<Integer>> LIST_INT = new TypeReference<>() {
@@ -176,6 +184,8 @@ public Tui() {
         this.err = new PrintWriter(System.err);
         this.debug = false;
         this.verbose = true;
+
+        Tui.instance = this;
     }
 
     public void init(CommandSpec spec, boolean debug, boolean verbose) {
@@ -304,6 +314,33 @@ public Optional<Path> resolvePath(Path path) {
                 .findFirst();
     }
 
+    public void copyFonts(Collection<FontRef> fonts, Map<String, String> fallbackPaths) {
+        for (FontRef fontRef : fonts) {
+            Path targetPath = output.resolve(Path.of("css-snippets", slugify(fontRef.fontFamily) + ".css"));
+            targetPath.getParent().toFile().mkdirs();
+
+            printlnf("⏱️ Generating CSS snippet for %s", fontRef.sourcePath);
+            if (fontRef.sourcePath.startsWith("http")) {
+                try (InputStream is = URI.create(fontRef.sourcePath.replace(" ", "%20")).toURL().openStream()) {
+                    Files.writeString(targetPath, templates.renderCss(fontRef, is));
+                } catch (IOException e) {
+                    errorf(e, "Unable to copy font from %s to %s", fontRef.sourcePath, targetPath);
+                }
+            } else {
+                Optional<Path> resolvedSource = resolvePath(Path.of(fontRef.sourcePath));
+                if (resolvedSource.isEmpty()) {
+                    errorf("Unable to find font '%s'", fontRef.sourcePath);
+                    continue;
+                }
+                try (BufferedInputStream is = new BufferedInputStream(Files.newInputStream(resolvedSource.get()))) {
+                    Files.writeString(targetPath, templates.renderCss(fontRef, is));
+                } catch (IOException e) {
+                    errorf(e, "Unable to copy font from %s to %s", fontRef.sourcePath, targetPath);
+                }
+            }
+        }
+    }
+
     public void copyImages(Collection<ImageRef> images, Map<String, String> fallbackPaths) {
         for (ImageRef image : images) {
             Path targetPath = output.resolve(image.targetFilePath());

src/main/java/dev/ebullient/convert/tools/JsonNodeReader.java

@@ -85,6 +85,20 @@ default boolean existsIn(JsonNode source) {
         return source.has(this.nodeName());
     }
 
+    default boolean isArrayIn(JsonNode source) {
+        if (source == null || !source.has(this.nodeName())) {
+            return false;
+        }
+        return source.get(this.nodeName()).isArray();
+    }
+
+    default boolean isObjectIn(JsonNode source) {
+        if (source == null || !source.has(this.nodeName())) {
+            return false;
+        }
+        return source.get(this.nodeName()).isObject();
+    }
+
     default <T> T fieldFromTo(JsonNode source, Class<T> classTarget, Tui tui) {
         return tui.readJsonValue(source.get(this.nodeName()), classTarget);
     }
@@ -268,24 +282,24 @@ default boolean valueEquals(JsonNode previous, JsonNode next) {
     }
 
     default ArrayNode withArrayFrom(JsonNode source) {
-        if (source == null || !source.has(this.nodeName())) {
-            return Tui.MAPPER.createArrayNode();
+        if (isArrayIn(source)) {
+            return source.withArray(this.nodeName());
         }
-        return source.withArray(this.nodeName());
+        return Tui.MAPPER.createArrayNode();
     }
 
     default Iterable<JsonNode> iterateArrayFrom(JsonNode source) {
-        if (source == null || !source.has(this.nodeName())) {
-            return List.of();
+        if (isArrayIn(source)) {
+            return () -> source.withArray(this.nodeName()).elements();
         }
-        return () -> source.withArray(this.nodeName()).elements();
+        return List.of();
     }
 
     default Iterable<Entry<String, JsonNode>> iterateFieldsFrom(JsonNode source) {
-        if (source == null) {
-            return List.of();
+        if (isObjectIn(source)) {
+            return () -> source.get(this.nodeName()).fields();
         }
-        return source::fields;
+        return List.of();
     }
 
     /** Destructive! */

src/main/java/dev/ebullient/convert/tools/dnd5e/JsonTextReplacement.java

@@ -31,6 +31,7 @@ public interface JsonTextReplacement extends JsonTextConverter<Tools5eIndexType>
     Pattern dicePattern = Pattern.compile("\\{@(dice|damage) ([^{}]+)}");
 
     Pattern chancePattern = Pattern.compile("\\{@chance ([^}]+)}");
+    Pattern fontPattern = Pattern.compile("\\{@font ([^}]+)}");
     Pattern homebrewPattern = Pattern.compile("\\{@homebrew ([^}]+)}");
     Pattern quickRefPattern = Pattern.compile("\\{@quickref ([^}]+)}");
     Pattern notePattern = Pattern.compile("\\{@note (\\*|Note:)?\\s?([^}]+)}");
@@ -186,6 +187,17 @@ default String _replaceTokenText(String input, boolean nested) {
             result = linkifyPattern.matcher(result)
                     .replaceAll(this::linkify);
 
+            result = fontPattern.matcher(result)
+                    .replaceAll((match) -> {
+                        String[] parts = match.group(1).split("\\|");
+                        String fontFamily = Tools5eSources.getFontReference(parts[1]);
+                        if (fontFamily != null) {
+                            return String.format("<span style=\"font-family: %s\">%s</span>",
+                                    fontFamily, parts[0]);
+                        }
+                        return parts[0];
+                    });
+
             try {
                 result = result
                         .replace("{@hitYourSpellAttack}", "the summoner's spell attack modifier")
@@ -216,8 +228,8 @@ default String _replaceTokenText(String input, boolean nested) {
                         .replaceAll("\\{@cult ([^|}]+)}", "$1")
                         .replaceAll("\\{@language ([^|}]+)\\|?[^}]*}", "$1")
                         .replaceAll("\\{@book ([^}|]+)\\|?[^}]*}", "\"$1\"")
-                        .replaceAll("\\{@hit ([+-][^}<]+)}", "$1")
-                        .replaceAll("\\{@hit ([^}<]+)}", "+$1")
+                        .replaceAll("\\{@(hit|h) ([+-][^}<]+)}", "$2")
+                        .replaceAll("\\{@(hit|h) ([^}<]+)}", "+$2")
                         .replaceAll("\\{@h}", "*Hit:* ")
                         .replaceAll("\\{@m}", "*Miss:* ")
                         .replaceAll("\\{@atk a}", "*Area Attack:*")
@@ -235,6 +247,7 @@ default String _replaceTokenText(String input, boolean nested) {
                         .replaceAll("\\{@atk ms}", "*Melee Spell Attack:*")
                         .replaceAll("\\{@atk rs}", "*Ranged Spell Attack:*")
                         .replaceAll("\\{@atk ms,rs}", "*Melee or Ranged Spell Attack:*")
+                        .replaceAll("\\{@spell\\s*}", "") // error in homebrew
                         .replaceAll("\\{@color ([^|}]+)\\|?[^}]*}", "$1")
                         .replaceAll("\\{@style ([^|}]+)\\|?[^}]*}", "$1")
                         .replaceAll("\\{@b ([^}]+?)}", "**$1**")
@@ -269,6 +282,7 @@ default String _replaceTokenText(String input, boolean nested) {
                 String[] parts = match.group(1).split("\\|");
                 if (parts[0].contains("<sup>")) {
                     // This already assumes what the footnote name will be
+                    // TODO: Note content is lost on this path at the moment
                     return String.format("%s", parts[0]);
                 }
                 if (parts.length > 2) {

src/main/java/dev/ebullient/convert/tools/dnd5e/Tools5eIndex.java

@@ -98,6 +98,8 @@ private void indexTypes(String filename, JsonNode node) {
         Tools5eIndexType.spellFluff.withArrayFrom(node, this::addToIndex);
         Tools5eIndexType.vehicleFluff.withArrayFrom(node, this::addToIndex);
 
+        Tools5eIndexType.language.withArrayFrom(node, this::addToIndex);
+
         Tools5eIndexType.itemEntry.withArrayFrom(node, this::addToIndex);
         Tools5eIndexType.itemTypeAdditionalEntries.withArrayFrom(node, this::addToIndex);
         Tools5eIndexType.magicvariant.withArrayFrom(node, this::addToIndex);
@@ -246,6 +248,7 @@ private boolean addHomebrewSourcesIfPresent(String filename, JsonNode node) {
                 metaTypes.setSkillType(skillName, skill);
             }
         }
+        Tools5eSources.addFonts(SourceField._meta.getFrom(node), HomebrewFields.fonts);
         return true;
     }
 
@@ -307,7 +310,9 @@ void addToIndex(Tools5eIndexType type, JsonNode node) {
             SourceAndPage sp = new SourceAndPage(node);
             tableIndex.computeIfAbsent(sp, k -> new ArrayList<>()).add(node);
         }
-
+        if (type == Tools5eIndexType.language && HomebrewFields.fonts.existsIn(node)) {
+            Tools5eSources.addFonts(node, HomebrewFields.fonts);
+        }
         if (node.has("srd")) {
             srdKeys.add(key);
         }
@@ -1172,6 +1177,7 @@ public void setItemProperty(String key, CustomItemProperty value) {
 
     enum HomebrewFields implements JsonNodeReader {
         abbreviation,
+        fonts,
         full,
         json,
         optionalFeatureTypes,

src/main/java/dev/ebullient/convert/tools/dnd5e/Tools5eIndexType.java

@@ -43,6 +43,7 @@ public enum Tools5eIndexType implements IndexType, JsonNodeReader {
     itemType,
     itemTypeAdditionalEntries,
     itemProperty,
+    language,
     legendaryGroup,
     magicvariant,
     monster,

src/main/java/dev/ebullient/convert/tools/dnd5e/Tools5eMarkdownConverter.java

@@ -44,6 +44,7 @@ public Tools5eMarkdownConverter writeNotesAndTables() {
 
     public Tools5eMarkdownConverter writeImages() {
         index.tui().copyImages(Tools5eSources.getImages(), fallbackPaths);
+        index.tui().copyFonts(Tools5eSources.getFonts(), fallbackPaths);
         return this;
     }
 

src/main/java/dev/ebullient/convert/tools/dnd5e/Tools5eSources.java

@@ -6,16 +6,20 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.Optional;
 import java.util.Set;
 
 import com.fasterxml.jackson.databind.JsonNode;
 
 import dev.ebullient.convert.config.TtrpgConfig;
+import dev.ebullient.convert.io.FontRef;
+import dev.ebullient.convert.io.Tui;
 import dev.ebullient.convert.qute.ImageRef;
 import dev.ebullient.convert.qute.QuteBase;
 import dev.ebullient.convert.tools.CompendiumSources;
 import dev.ebullient.convert.tools.IndexType;
+import dev.ebullient.convert.tools.JsonNodeReader;
 import dev.ebullient.convert.tools.JsonTextConverter.SourceField;
 import dev.ebullient.convert.tools.ToolsIndex.TtrpgValue;
 import dev.ebullient.convert.tools.dnd5e.JsonSource.JsonMediaHref;
@@ -27,6 +31,7 @@ public class Tools5eSources extends CompendiumSources {
 
     private static final Map<String, Tools5eSources> keyToSources = new HashMap<>();
     private static final Map<Path, ImageRef> imageSourceToRef = new HashMap<>();
+    private static final Map<String, FontRef> fontSourceToRef = new HashMap<>();
     private static final Map<String, List<QuteBase>> keyToInlineNotes = new HashMap<>();
 
     public static Tools5eSources findSources(String key) {
@@ -86,6 +91,51 @@ public void addInlineNote(QuteBase note) {
         keyToInlineNotes.computeIfAbsent(this.key, k -> new ArrayList<>()).add(note);
     }
 
+    public static Collection<FontRef> getFonts() {
+        return fontSourceToRef.values().stream()
+                .filter(FontRef::hasTextReference)
+                .toList();
+    }
+
+    public static void addFonts(JsonNode source, JsonNodeReader field) {
+        if (field.isArrayIn(source)) {
+            for (JsonNode font : field.iterateArrayFrom(source)) {
+                addFont(font.asText());
+            }
+        } else if (field.isObjectIn(source)) {
+            for (Entry<String, JsonNode> font : field.iterateFieldsFrom(source)) {
+                addFont(font.getKey(), font.getValue().asText());
+            }
+        }
+    }
+
+    static void addFont(String fontFamily, String fontString) {
+        FontRef ref = FontRef.of(fontFamily, fontString);
+        if (ref == null) {
+            Tui.instance().warnf("Font '%s' is invalid, empty, or not found", fontString);
+        } else {
+            FontRef previous = fontSourceToRef.putIfAbsent(fontFamily, ref);
+            if (previous != null) {
+                Tui.instance().warnf("Font '%s' is already defined as '%s'", fontString, previous);
+            }
+        }
+    }
+
+    static void addFont(String fontString) {
+        String fontFamily = FontRef.fontFamily(fontString);
+        addFont(fontFamily, fontString);
+    }
+
+    public static String getFontReference(String fontString) {
+        String fontFamily = FontRef.fontFamily(fontString);
+        FontRef ref = fontSourceToRef.get(fontFamily);
+        if (ref == null) {
+            return null;
+        }
+        ref.addTextReference();
+        return fontFamily;
+    }
+
     final boolean srd;
     final boolean basicRules;
     final Tools5eIndexType type;