refactor(core): extract shared dedup helpers

src/plugin-sdk/reply-payload.test.ts

@@ -0,0 +1,58 @@
+import { describe, expect, it } from "vitest";
+import { isNumericTargetId, sendPayloadWithChunkedTextAndMedia } from "./reply-payload.js";
+
+describe("sendPayloadWithChunkedTextAndMedia", () => {
+  it("returns empty result when payload has no text and no media", async () => {
+    const result = await sendPayloadWithChunkedTextAndMedia({
+      ctx: { payload: {} },
+      sendText: async () => ({ channel: "test", messageId: "text" }),
+      sendMedia: async () => ({ channel: "test", messageId: "media" }),
+      emptyResult: { channel: "test", messageId: "" },
+    });
+    expect(result).toEqual({ channel: "test", messageId: "" });
+  });
+
+  it("sends first media with text and remaining media without text", async () => {
+    const calls: Array<{ text: string; mediaUrl: string }> = [];
+    const result = await sendPayloadWithChunkedTextAndMedia({
+      ctx: {
+        payload: { text: "hello", mediaUrls: ["https://a", "https://b"] },
+      },
+      sendText: async () => ({ channel: "test", messageId: "text" }),
+      sendMedia: async (ctx) => {
+        calls.push({ text: ctx.text, mediaUrl: ctx.mediaUrl });
+        return { channel: "test", messageId: ctx.mediaUrl };
+      },
+      emptyResult: { channel: "test", messageId: "" },
+    });
+    expect(calls).toEqual([
+      { text: "hello", mediaUrl: "https://a" },
+      { text: "", mediaUrl: "https://b" },
+    ]);
+    expect(result).toEqual({ channel: "test", messageId: "https://b" });
+  });
+
+  it("chunks text and sends each chunk", async () => {
+    const chunks: string[] = [];
+    const result = await sendPayloadWithChunkedTextAndMedia({
+      ctx: { payload: { text: "alpha beta gamma" } },
+      textChunkLimit: 5,
+      chunker: () => ["alpha", "beta", "gamma"],
+      sendText: async (ctx) => {
+        chunks.push(ctx.text);
+        return { channel: "test", messageId: ctx.text };
+      },
+      sendMedia: async () => ({ channel: "test", messageId: "media" }),
+      emptyResult: { channel: "test", messageId: "" },
+    });
+    expect(chunks).toEqual(["alpha", "beta", "gamma"]);
+    expect(result).toEqual({ channel: "test", messageId: "gamma" });
+  });
+
+  it("detects numeric target IDs", () => {
+    expect(isNumericTargetId("12345")).toBe(true);
+    expect(isNumericTargetId("  987  ")).toBe(true);
+    expect(isNumericTargetId("ab12")).toBe(false);
+    expect(isNumericTargetId("")).toBe(false);
+  });
+});