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

import { DEFAULT_HEARTBEAT_ACK_MAX_CHARS, stripHeartbeatToken } from "./heartbeat.js";
import { HEARTBEAT_TOKEN } from "./tokens.js";

describe("stripHeartbeatToken", () => {
  it("skips empty or token-only replies", () => {
    expect(stripHeartbeatToken(undefined, { mode: "heartbeat" })).toEqual({
      shouldSkip: true,
      text: "",
      didStrip: false,
    });
    expect(stripHeartbeatToken("  ", { mode: "heartbeat" })).toEqual({
      shouldSkip: true,
      text: "",
      didStrip: false,
    });
    expect(stripHeartbeatToken(HEARTBEAT_TOKEN, { mode: "heartbeat" })).toEqual({
      shouldSkip: true,
      text: "",
      didStrip: true,
    });
  });

  it("drops heartbeats with small junk in heartbeat mode", () => {
    expect(stripHeartbeatToken("HEARTBEAT_OK 🦞", { mode: "heartbeat" })).toEqual({
      shouldSkip: true,
      text: "",
      didStrip: true,
    });
    expect(stripHeartbeatToken(`🦞 ${HEARTBEAT_TOKEN}`, { mode: "heartbeat" })).toEqual({
      shouldSkip: true,
      text: "",
      didStrip: true,
    });
  });

  it("drops short remainder in heartbeat mode", () => {
    expect(stripHeartbeatToken(`ALERT ${HEARTBEAT_TOKEN}`, { mode: "heartbeat" })).toEqual({
      shouldSkip: true,
      text: "",
      didStrip: true,
    });
  });

  it("keeps heartbeat replies when remaining content exceeds threshold", () => {
    const long = "A".repeat(DEFAULT_HEARTBEAT_ACK_MAX_CHARS + 1);
    expect(stripHeartbeatToken(`${long} ${HEARTBEAT_TOKEN}`, { mode: "heartbeat" })).toEqual({
      shouldSkip: false,
      text: long,
      didStrip: true,
    });
  });

  it("strips token at edges for normal messages", () => {
    expect(stripHeartbeatToken(`${HEARTBEAT_TOKEN} hello`, { mode: "message" })).toEqual({
      shouldSkip: false,
      text: "hello",
      didStrip: true,
    });
    expect(stripHeartbeatToken(`hello ${HEARTBEAT_TOKEN}`, { mode: "message" })).toEqual({
      shouldSkip: false,
      text: "hello",
      didStrip: true,
    });
  });

  it("does not touch token in the middle", () => {
    expect(
      stripHeartbeatToken(`hello ${HEARTBEAT_TOKEN} there`, {
        mode: "message",
      }),
    ).toEqual({
      shouldSkip: false,
      text: `hello ${HEARTBEAT_TOKEN} there`,
      didStrip: false,
    });
  });

  it("strips HTML-wrapped heartbeat tokens", () => {
    expect(stripHeartbeatToken(`<b>${HEARTBEAT_TOKEN}</b>`, { mode: "heartbeat" })).toEqual({
      shouldSkip: true,
      text: "",
      didStrip: true,
    });
  });

  it("strips markdown-wrapped heartbeat tokens", () => {
    expect(stripHeartbeatToken(`**${HEARTBEAT_TOKEN}**`, { mode: "heartbeat" })).toEqual({
      shouldSkip: true,
      text: "",
      didStrip: true,
    });
  });

  it("removes markup-wrapped token and keeps trailing content", () => {
    expect(
      stripHeartbeatToken(`<code>${HEARTBEAT_TOKEN}</code> all good`, {
        mode: "message",
      }),
    ).toEqual({
      shouldSkip: false,
      text: "all good",
      didStrip: true,
    });
  });
});
