✨ Added retrieve webhook effect

src/main/java/info/itsthesky/disky/elements/effects/webhooks/RetrieveWebhooks.java

@@ -0,0 +1,75 @@
+package info.itsthesky.disky.elements.effects.webhooks;
+
+import ch.njol.skript.Skript;
+import ch.njol.skript.classes.Changer;
+import ch.njol.skript.config.Node;
+import ch.njol.skript.lang.Expression;
+import ch.njol.skript.lang.SkriptParser;
+import ch.njol.skript.util.AsyncEffect;
+import ch.njol.util.Kleenean;
+import info.itsthesky.disky.elements.sections.handler.DiSkyRuntimeHandler;
+import net.dv8tion.jda.api.entities.Guild;
+import net.dv8tion.jda.api.entities.Webhook;
+import net.dv8tion.jda.api.entities.channel.Channel;
+import net.dv8tion.jda.api.entities.channel.attribute.IWebhookContainer;
+import org.bukkit.event.Event;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.List;
+
+public class RetrieveWebhooks extends AsyncEffect {
+
+    static {
+        Skript.registerEffect(
+                RetrieveWebhooks.class,
+                "retrieve [the] webhook[s] (from|of) [the] [channel] %channel/textchannel/guild% and store (them|the webhook[s]) in %objects%"
+        );
+    }
+
+    private Expression<Channel> exprChannel;
+    private Expression<Object> exprVar;
+    private Node node;
+
+    @Override
+    public boolean init(Expression<?>[] expressions, int matchedPattern, @NotNull Kleenean isDelayed, SkriptParser.@NotNull ParseResult parseResult) {
+        exprChannel = (Expression<Channel>) expressions[0];
+        exprVar = (Expression<Object>) expressions[1];
+        node = getParser().getNode();
+
+        return Changer.ChangerUtils.acceptsChange(exprVar, Changer.ChangeMode.SET, Webhook.class);
+    }
+
+    @Override
+    protected void execute(@NotNull Event event) {
+        final var target = exprChannel.getSingle(event);
+        final var var = exprVar.getSingle(event);
+        if (target == null || var == null)
+            return;
+
+        if (!(target instanceof IWebhookContainer) && !(target instanceof Guild)) {
+            DiSkyRuntimeHandler.error(new IllegalArgumentException("The entity " + target + " is not a webhook container (= text channel) or guild!"), node);
+            return;
+        }
+
+        try {
+            final List<Webhook> webhooks;
+            if (target instanceof IWebhookContainer)
+                webhooks = ((IWebhookContainer) target).retrieveWebhooks().complete();
+            else
+                webhooks = ((Guild) target).retrieveWebhooks().complete();
+
+            exprVar.change(event, webhooks.toArray(new Webhook[0]), Changer.ChangeMode.SET);
+        } catch (Exception ex) {
+            DiSkyRuntimeHandler.error(ex, node);
+
+            exprVar.change(event, new Webhook[0], Changer.ChangeMode.SET);
+        }
+    }
+
+    @Override
+    public @NotNull String toString(@Nullable Event event, boolean debug) {
+        return "retrieve webhooks from entity " + exprChannel.toString(event, debug)
+                + " and store them in " + exprVar.toString(event, debug);
+    }
+}