idz: Tweak how request variants are modelled

src/idz/encoder/index.ts

@@ -13,7 +13,6 @@ import { loadGarage } from "./loadGarage";
 import { loadGeneralReward } from "./loadGeneralReward";
 import { loadGhost } from "./loadGhost";
 import { loadProfile } from "./loadProfile";
-import { loadProfile2 } from "./loadProfile2";
 import { loadRewardTable } from "./loadRewardTable";
 import { loadServerList } from "./loadServerList";
 import { loadStocker } from "./loadStocker";
@@ -64,12 +63,9 @@ function encode(res: Response): Buffer {
     case "load_ghost_res":
       return loadGhost(res);
 
-    case "load_profile_v1_res":
+    case "load_profile_res":
       return loadProfile(res);
 
-    case "load_profile_v2_res":
-      return loadProfile2(res);
-
     case "load_reward_table_res":
       return loadRewardTable(res);
 

src/idz/encoder/loadProfile.ts

@@ -1,10 +1,18 @@
+import { loadProfile1 } from "./loadProfile1";
+import { loadProfile2 } from "./loadProfile2";
 import { LoadProfileResponse } from "../response/loadProfile";
 
-// Sending this causes an error
 export function loadProfile(res: LoadProfileResponse) {
-  const buf = Buffer.alloc(0x0c60);
+  switch (res.format) {
+    case 1:
+      return loadProfile1(res);
 
-  buf.writeInt16LE(0x0064, 0x0000);
+    case 2:
+      return loadProfile2(res);
 
-  return buf;
+    default:
+      const exhaust: never = res;
+
+      throw new Error(`Unsupported profile response format ${res["format"]}`);
+  }
 }

src/idz/encoder/loadProfile1.ts

@@ -0,0 +1,12 @@
+import { LoadProfileResponse1 } from "../response/loadProfile";
+
+// Sending this causes an error in v1.21, so it is currently unmapped and
+// unimplemented.
+
+export function loadProfile1(res: LoadProfileResponse1) {
+  const buf = Buffer.alloc(0x0c60);
+
+  buf.writeInt16LE(0x0064, 0x0000);
+
+  return buf;
+}

src/idz/encoder/loadProfile2.ts

@@ -4,7 +4,7 @@ import { bitmap } from "./_bitmap";
 import { car } from "./_car";
 import { chara } from "./_chara";
 import { mission } from "./_mission";
-import { LoadProfileResponse2 } from "../response/loadProfile2";
+import { LoadProfileResponse2 } from "../response/loadProfile";
 
 export function loadProfile2(res: LoadProfileResponse2) {
   const buf = Buffer.alloc(0x0d30);