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

describe("dep-graph", () => {
    it("runtime deps are locked to the approved set", {
        timeout: 5000,
    }, () => {
        const pkg = JSON.parse(
            readFileSync(join(__dirname, "..", "package.json"), "utf8")
        ) as { dependencies?: Record<string, string> };
        const runtime = Object.keys(pkg.dependencies ?? {}).sort();
        expect(runtime).toEqual([
            "@suaveplan/crypto-cipher",
            "@suaveplan/crypto-curve",
            "@suaveplan/crypto-hash",
            "@suaveplan/crypto-utils",
            "@suaveplan/error",
            "@suaveplan/types",
            "tslib",
            "zod",
        ]);
    });

    it("no peerDependencies", { timeout: 5000 }, () => {
        const pkg = JSON.parse(
            readFileSync(join(__dirname, "..", "package.json"), "utf8")
        ) as { peerDependencies?: Record<string, string> };
        expect(pkg.peerDependencies).toBeUndefined();
    });

    it("does not depend on any @noble/* package directly", {
        timeout: 5000,
    }, () => {
        // Every @noble/* import must go through one of the @suaveplan/crypto-*
        // selector packages. check-crypto-selects enforces the impl routing.
        const pkg = JSON.parse(
            readFileSync(join(__dirname, "..", "package.json"), "utf8")
        ) as { dependencies?: Record<string, string> };
        const nobleDeps = Object.keys(pkg.dependencies ?? {}).filter((d) =>
            d.startsWith("@noble/")
        );
        expect(nobleDeps).toEqual([]);
    });
});