import { mkdtemp, rm, writeFile } from "node:fs/promises";
import { tmpdir } from "node:os";
import { join } from "node:path";
import { WavCodec } from "@suaveplan/audio-codecs";
import {
    afterEach,
    beforeEach,
    describe,
    expect,
    it,
} from "@suaveplan/testing/runner";
import { FileSinkAdapter, FileSourceAdapter } from "../src/index.js";

describe("integration", () => {
    let dir: string;

    beforeEach(async () => {
        dir = await mkdtemp(join(tmpdir(), "aes-int-"));
    });
    afterEach(async () => {
        await rm(dir, { recursive: true, force: true });
    });

    it("load then save round-trips through a real node:fs.mkdtemp tmpdir", {
        timeout: 30_000,
    }, async () => {
        const inPath = join(dir, "in.wav");
        const outPath = join(dir, "out.wav");
        const wav = await WavCodec.encode([new Float32Array(256)], {
            sampleRate: 44_100,
            bitDepth: 16,
            format: "pcm",
        });
        await writeFile(inPath, wav);
        const source = new FileSourceAdapter();
        const sink = new FileSinkAdapter();
        const doc = await source.load(inPath);
        await sink.save(doc, outPath, "wav");
        const back = await source.load(outPath);
        expect(back.sourceLength).toBe(doc.sourceLength);
        expect(back.channels).toBe(doc.channels);
    });
});