3 files changed, 120 insertions, 0 deletions
diff --git a/mod/src/main/java/moe/ymc/acron/c2s/ReqCmd.java b/mod/src/main/java/moe/ymc/acron/c2s/ReqCmd.java
new file mode 100644
index 0000000..6f34b07
--- /dev/null
+++ b/mod/src/main/java/moe/ymc/acron/c2s/ReqCmd.java
@@ -0,0 +1,51 @@
+package moe.ymc.acron.c2s;
+
+import com.google.gson.*;
+import com.google.gson.annotations.SerializedName;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.lang.reflect.Type;
+
+public record ReqCmd(@SerializedName("id") int id,
+                     @SerializedName("cmd") @NotNull String cmd,
+                     @SerializedName("config") @Nullable ReqSetConfig config)
+        implements Request {
+    @Override
+    public void validate() {
+        if (cmd == null) {
+            throw new IllegalArgumentException("Property 'cmd' cannot be null.");
+        }
+    }
+
+    @Override
+    public int getId() {
+        return id;
+    }
+
+    public static class ReqCmdDeserializer implements JsonDeserializer<ReqCmd> {
+        @Override
+        public ReqCmd deserialize(JsonElement json,
+                                  Type typeOfT,
+                                  JsonDeserializationContext context) throws JsonParseException {
+            final JsonObject object = json.getAsJsonObject();
+            final int id = object.has("id") ?
+                    object.get("id").getAsInt() :
+                    -1;
+            final String cmd = object.has("cmd") ?
+                    object.get("cmd").getAsString() :
+                    null;
+            // We cannot use context#deserialize here
+            // because RuntimeTypeAdapterFactory keeps kicking in
+            // and asking for the 'type' property
+            // which is obviously redundant for an inner field.
+            // Thus, I pass it directly to the deserializer
+            // to bypass the RuntimeTypeAdapterFactory.
+            final ReqSetConfig reqSetConfig = object.has("config") ?
+                    new ReqSetConfig.ReqSetConfigDeserializer()
+                            .deserialize(object.get("config"), ReqSetConfig.class, context) :
+                    null;
+            return new ReqCmd(id, cmd, reqSetConfig);
+        }
+    }
+}
diff --git a/mod/src/main/java/moe/ymc/acron/c2s/ReqSetConfig.java b/mod/src/main/java/moe/ymc/acron/c2s/ReqSetConfig.java
new file mode 100644
index 0000000..fcddf35
--- /dev/null
+++ b/mod/src/main/java/moe/ymc/acron/c2s/ReqSetConfig.java
@@ -0,0 +1,63 @@
+package moe.ymc.acron.c2s;
+
+import com.google.gson.*;
+import com.google.gson.annotations.SerializedName;
+import moe.ymc.acron.common.Vec2f;
+import moe.ymc.acron.common.Vec3d;
+import moe.ymc.acron.common.WorldKey;
+import org.jetbrains.annotations.Nullable;
+
+import java.lang.reflect.Type;
+
+public record ReqSetConfig(@SerializedName("id") int id,
+                           @SerializedName("world") @Nullable WorldKey world,
+                           @SerializedName("pos") @Nullable Vec3d pos,
+                           @SerializedName("rot") @Nullable Vec2f rot,
+                           @SerializedName("name") @Nullable String name)
+        implements Request {
+    @Override
+    public void validate() {
+    }
+
+    @Override
+    public int getId() {
+        return id;
+    }
+
+    public static class ReqSetConfigDeserializer implements JsonDeserializer<ReqSetConfig> {
+        @Override
+        public ReqSetConfig deserialize(JsonElement json,
+                                        Type typeOfT,
+                                        JsonDeserializationContext context) throws JsonParseException {
+            final JsonObject object = json.getAsJsonObject();
+            final int id = object.has("id") ?
+                    object.get("id").getAsInt() :
+                    -1;
+            final WorldKey world;
+            if (object.has("world")) {
+                world = context.deserialize(object.get("world"), WorldKey.class);
+                // https://stackoverflow.com/a/49574019
+                if (world == null) {
+                    throw new JsonParseException("Invalid world");
+                }
+            } else {
+                world = null;
+            }
+            final Vec3d pos = object.has("pos") ?
+                    context.deserialize(object.get("pos"), Vec3d.class) :
+                    null;
+            final Vec2f rot = object.has("rot") ?
+                    context.deserialize(object.get("rot"), Vec2f.class) :
+                    null;
+            final String name = object.has("name") ?
+                    object.get("name").getAsString() :
+                    null;
+            return new ReqSetConfig(id,
+                    world,
+                    pos,
+                    rot,
+                    name);
+        }
+    }
+
+}
+\ No newline at end of file
diff --git a/mod/src/main/java/moe/ymc/acron/c2s/Request.java b/mod/src/main/java/moe/ymc/acron/c2s/Request.java
new file mode 100644
index 0000000..af81705
--- /dev/null
+++ b/mod/src/main/java/moe/ymc/acron/c2s/Request.java
@@ -0,0 +1,6 @@
+package moe.ymc.acron.c2s;
+
+public interface Request {
+    int getId();
+    void validate() throws IllegalArgumentException;
+}