import { test } from "bun:test"; import assert from "node:assert/strict"; import { GifService } from "./gif.ts";

function createService({ apiKey = "test-giphy-key", rating = "pg-13" } = {}) { const logs = []; const store = { logAction(entry) { logs.push(entry); } }; const service = new GifService({ appConfig: { giphyApiKey: apiKey, giphyRating: rating }, store }); return { service, logs }; }

async function withMockFetch(handler, run) { const originalFetch = globalThis.fetch; globalThis.fetch = handler; try { await run(); } finally { globalThis.fetch = originalFetch; } }

test("pickGif searches giphy, deduplicates results, and logs successful pick", async () => { const { service, logs } = createService(); const originalRandom = Math.random; Math.random = () => 0;

await withMockFetch( async (url) => { const parsed = new URL(String(url)); assert.equal(parsed.origin + parsed.pathname, "https://api.giphy.com/v1/gifs/search"); assert.equal(parsed.searchParams.get("rating"), "pg-13"); return { ok: true, async json() { return { data: [ { id: "a", title: "alpha", images: { fixed_height: { url: "https://media.giphy.com/media/a/giphy.gif" } }, url: "https://giphy.com/gifs/a" }, { id: "dup", title: "duplicate", images: { fixed_height: { url: "https://media.giphy.com/media/a/giphy.gif" } }, url: "https://giphy.com/gifs/a-dup" }, { id: "http-only", title: "bad", images: { fixed_height: { url: "http://media.giphy.com/media/http/giphy.gif" } } } ] }; } }; }, async () => { const result = await service.pickGif({ query: "cats", trace: { guildId: "guild-1", channelId: "chan-1", userId: "user-1", source: "reply" } }); assert.equal(result?.id, "a"); assert.equal(result?.url, "https://media.giphy.com/media/a/giphy.gif"); } );

Math.random = originalRandom;

assert.equal(logs.length, 1); assert.equal(logs[0]?.kind, "gif_call"); assert.equal(logs[0]?.metadata?.used, true); });

test("pickGif logs error and throws on provider failure", async () => { const { service, logs } = createService();

await withMockFetch( async () => ({ ok: false, status: 503 }), async () => { await assert.rejects( () => service.pickGif({ query: "something", trace: { source: "test-case" } }), /GIPHY HTTP 503/ ); } );

assert.equal(logs.length, 1); assert.equal(logs[0]?.kind, "gif_error"); assert.match(String(logs[0]?.content || ""), /503/); });