import { CodecRegistry } from "@suaveplan/audio-codecs/registry/registry";
import { describe, expect, it } from "@suaveplan/testing/runner";
import { FfmpegWasmCodec, register } from "../src/index.js";
import {
    buildPcmBytes,
    FakeWorker,
    successScript,
} from "./fixtures/fake-worker.js";

describe("integration: codec wired through CodecRegistry", () => {
    it("register installs and registry.detect finds the codec", {
        timeout: 30000,
    }, () => {
        const registry = new CodecRegistry();
        const codec = register(registry, {
            coreLoader: () => Promise.resolve({}),
            workerFactory: () => new FakeWorker() as unknown as Worker,
        });
        expect(codec).toBeInstanceOf(FfmpegWasmCodec);
        const wav = new Uint8Array(44);
        wav[0] = 0x52;
        wav[1] = 0x49;
        wav[2] = 0x46;
        wav[3] = 0x46;
        expect(registry.detect(wav)).toBe("ffmpeg-wasm");
    });

    it("registry.decode produces an AudioDocument", {
        timeout: 30000,
    }, async () => {
        const registry = new CodecRegistry();
        const worker = new FakeWorker();
        worker.script.push(...successScript(buildPcmBytes(64, 2)));
        register(registry, {
            coreLoader: () => Promise.resolve({}),
            workerFactory: () => worker as unknown as Worker,
        });
        const wav = new Uint8Array(44);
        wav[0] = 0x52;
        wav[1] = 0x49;
        wav[2] = 0x46;
        wav[3] = 0x46;
        const doc = await registry.decode(wav);
        expect(doc.channels).toBe(2);
        expect(doc.sampleRate).toBeGreaterThan(0);
    });
});