import { describe, expect, it } from "vitest";

import type { ClawdbotConfig } from "../../config/config.js";
import { resolveTelegramDraftStreamingChunking } from "./draft-chunking.js";

describe("resolveTelegramDraftStreamingChunking", () => {
  it("uses smaller defaults than block streaming", () => {
    const chunking = resolveTelegramDraftStreamingChunking(
      undefined,
      "default",
    );
    expect(chunking).toEqual({
      minChars: 200,
      maxChars: 800,
      breakPreference: "paragraph",
    });
  });

  it("clamps to telegram.textChunkLimit", () => {
    const cfg: ClawdbotConfig = {
      telegram: { allowFrom: ["*"], textChunkLimit: 150 },
    };
    const chunking = resolveTelegramDraftStreamingChunking(cfg, "default");
    expect(chunking).toEqual({
      minChars: 150,
      maxChars: 150,
      breakPreference: "paragraph",
    });
  });

  it("supports per-account overrides", () => {
    const cfg: ClawdbotConfig = {
      telegram: {
        allowFrom: ["*"],
        accounts: {
          default: {
            allowFrom: ["*"],
            draftChunk: {
              minChars: 10,
              maxChars: 20,
              breakPreference: "sentence",
            },
          },
        },
      },
    };
    const chunking = resolveTelegramDraftStreamingChunking(cfg, "default");
    expect(chunking).toEqual({
      minChars: 10,
      maxChars: 20,
      breakPreference: "sentence",
    });
  });
});