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CustomSyntaxStructure.java
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CustomSyntaxStructure.java
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package org.skriptlang.reflect.syntax;
import ch.njol.skript.Skript;
import ch.njol.skript.config.Node;
import ch.njol.skript.config.SectionNode;
import ch.njol.skript.lang.SyntaxElementInfo;
import ch.njol.skript.lang.VariableString;
import org.skriptlang.reflect.java.elements.structures.StructImport;
import org.skriptlang.reflect.syntax.event.elements.CustomEvent;
import org.skriptlang.reflect.syntax.event.EventSyntaxInfo;
import com.btk5h.skriptmirror.JavaType;
import org.skriptlang.reflect.syntax.event.BukkitCustomEvent;
import org.skriptlang.reflect.syntax.event.elements.CustomEventUtils;
import com.btk5h.skriptmirror.util.SkriptReflection;
import com.btk5h.skriptmirror.util.SkriptUtil;
import org.bukkit.event.Event;
import org.bukkit.event.HandlerList;
import org.skriptlang.skript.lang.entry.EntryValidator;
import org.skriptlang.skript.lang.script.Script;
import org.skriptlang.skript.lang.structure.Structure;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Consumer;
import java.util.function.Supplier;
import java.util.stream.Collectors;
public abstract class CustomSyntaxStructure<T extends CustomSyntaxStructure.SyntaxData> extends Structure {
public static final Priority PRIORITY = new Priority(350);
public static class CustomSyntaxEvent extends Event {
private CustomSyntaxEvent() {}
@Override
public HandlerList getHandlers() {
throw new IllegalStateException();
}
}
public static class DataTracker<T> {
public DataTracker() {
}
private List<String> patterns = new ArrayList<>();
private final Map<Script, Map<String, T>> primaryData = new HashMap<>();
private final List<Map<T, ?>> managedData = new ArrayList<>();
private SyntaxElementInfo<?> info;
public List<String> getPatterns() {
return patterns;
}
public Map<Script, Map<String, T>> getPrimaryData() {
return primaryData;
}
public List<Map<T, ?>> getManagedData() {
return managedData;
}
public SyntaxElementInfo<?> getInfo() {
return info;
}
public void recomputePatterns() {
patterns = primaryData.values().stream()
.map(Map::keySet)
.flatMap(Set::stream)
.distinct()
.collect(Collectors.toList());
}
public void addManaged(Map<T, ?> data) {
managedData.add(data);
}
public void setInfo(SyntaxElementInfo<?> info) {
this.info = info;
}
public final T lookup(Script script, int matchedPattern) {
String originalSyntax = patterns.get(matchedPattern);
Map<String, T> localSyntax = primaryData.get(script);
if (localSyntax != null) {
T privateResult = localSyntax.get(originalSyntax);
if (privateResult != null) {
return privateResult;
}
}
Map<String, T> globalSyntax = primaryData.get(null);
if (globalSyntax == null || !globalSyntax.containsKey(originalSyntax)) {
return null;
}
return globalSyntax.get(originalSyntax);
}
}
public abstract static class SyntaxData {
private final Script script;
private final String pattern;
private final int matchedPattern;
protected SyntaxData(Script script, String pattern, int matchedPattern) {
this.script = script;
this.pattern = pattern;
this.matchedPattern = matchedPattern;
}
public Script getScript() {
return script;
}
public String getPattern() {
return pattern;
}
public int getMatchedPattern() {
return matchedPattern;
}
@Override
public String toString() {
return pattern;
}
}
protected List<T> whichInfo = new ArrayList<>();
private boolean hasPatterns = false;
protected abstract DataTracker<T> getDataTracker();
@Override
public boolean preLoad() {
update();
return true;
}
@Override
public boolean load() {
return true;
}
@Override
public void unload() {
whichInfo.forEach(which -> {
Map<Script, Map<String, T>> primaryData = getDataTracker().getPrimaryData();
Script script = which.getScript();
Map<String, T> syntaxes = primaryData.get(script);
syntaxes.remove(which.getPattern());
if (syntaxes.isEmpty()) {
primaryData.remove(script);
}
getDataTracker().getManagedData().forEach(data -> data.remove(which));
});
update();
}
@Override
public Priority getPriority() {
return PRIORITY;
}
@Override
public String toString(Event e, boolean debug) {
return null;
}
private void update() {
getDataTracker().recomputePatterns();
SkriptReflection.setPatterns(getDataTracker().getInfo(), getDataTracker().getPatterns().toArray(new String[0]));
}
protected final void register(T data) {
hasPatterns = true;
String pattern = data.getPattern();
whichInfo.add(data);
getDataTracker().getPrimaryData()
.computeIfAbsent(data.getScript(), f -> new HashMap<>())
.put(pattern, data);
}
protected boolean checkHasPatterns() {
if (hasPatterns)
return true;
Skript.error("A custom syntax must have at least one pattern");
return false;
}
protected SectionNode[] getParseNode() {
SectionNode parseNode = getEntryContainer().getOptional("parse", SectionNode.class, false);
SectionNode safeParseNode = getEntryContainer().getOptional("safe parse", SectionNode.class, false);
if (safeParseNode != null) {
if (parseNode != null) {
Skript.error("A custom syntax element cannot contain both 'parse' and 'safe parse' entries");
return null;
}
Skript.warning("The 'safe parse' entry is deprecated and will act as a regular 'parse' entry."
+ " Please use the 'parse' entry instead");
return new SectionNode[] {safeParseNode};
}
return new SectionNode[] {parseNode};
}
@SuppressWarnings("unchecked")
protected boolean handleUsableEntry(SectionNode sectionNode, Map<T, List<Supplier<Boolean>>> usableSuppliers) {
Script currentScript = SkriptUtil.getCurrentScript();
for (Node usableNode : sectionNode) {
String usableKey = usableNode.getKey();
assert usableKey != null;
Supplier<Boolean> supplier;
if (usableKey.startsWith("custom event ")) {
String customEventString = usableKey.substring("custom event ".length());
VariableString variableString = VariableString.newInstance(
customEventString.substring(1, customEventString.length() - 1));
if (variableString == null || !variableString.isSimple()) {
Skript.error("Custom event identifiers may only be simple strings");
return false;
} else {
String identifier = variableString.toString(null);
supplier = () -> {
if (!getParser().isCurrentEvent(BukkitCustomEvent.class))
return false;
EventSyntaxInfo eventWhich = CustomEvent.lastWhich;
return CustomEventUtils.getName(eventWhich).equalsIgnoreCase(identifier);
};
}
} else {
JavaType javaType = StructImport.lookup(currentScript, usableKey);
Class<?> javaClass = javaType == null ? null : javaType.getJavaClass();
if (javaClass == null || !Event.class.isAssignableFrom(javaClass)) {
Skript.error(javaType + " is not a Bukkit event");
return false;
}
Class<? extends Event> eventClass = (Class<? extends Event>) javaClass;
supplier = () -> getParser().isCurrentEvent(eventClass);
}
whichInfo.forEach(which ->
usableSuppliers.computeIfAbsent(which, (whichIndex) -> new ArrayList<>())
.add(supplier)
);
}
return true;
}
public T getFirstWhich() {
return whichInfo.get(0);
}
public static EntryValidator.EntryValidatorBuilder customSyntaxValidator() {
return EntryValidator.builder()
.addEntryData(new PatternsEntryData("patterns", null, true))
.addSection("parse", true)
.addSection("safe parse", true) // Deprecated
.addSection("usable in", true);
}
}