import { readFileSync } from "node:fs";
import { join } from "node:path";
import { describe, expect, it } from "@suaveplan/testing/runner";

describe("exports", () => {
    it("every feature module has a subpath export entry", {
        timeout: 5000,
    }, () => {
        const pkg = JSON.parse(
            readFileSync(join(__dirname, "..", "package.json"), "utf8")
        ) as { exports: Record<string, unknown> };
        const required = [
            ".",
            "./meter/loudness-meter",
            "./algorithms/lufs",
            "./algorithms/true-peak",
            "./algorithms/loudness-range",
            "./filters/k-weighting",
            "./error-codes",
        ];
        for (const sub of required) expect(sub in pkg.exports).toBe(true);
    });

    it("root barrel re-exports the documented surface", {
        timeout: 5000,
    }, async () => {
        const mod = await import("../src/index.js");
        const exports = Object.keys(mod);
        const required = [
            "LoudnessMeter",
            "LoudnessMeterOptionsSchema",
            "AudioAnalysisLoudnessError",
            "AUDIO_ANALYSIS_LOUDNESS_CODES",
            "AUDIO_ANALYSIS_LOUDNESS_ERROR_METADATA",
            "registerAudioAnalysisLoudnessErrorCodes",
            "buildKWeighting",
            "createKWeighting",
            "truePeakDbtp",
            "samplePeakLinear",
            "loudnessRange",
            "momentaryLufs",
            "shortTermLufs",
            "IntegratedLoudness",
            "energyToLufs",
            "channelWeight",
            "blockMeanSquare",
            "combineChannelEnergies",
            "percentile",
        ];
        for (const sym of required) expect(exports).toContain(sym);
    });
});