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

interface PkgJson {
    dependencies?: Record<string, string>;
    peerDependencies?: Record<string, string>;
    exports?: Record<string, unknown>;
}

const pkg = JSON.parse(
    readFileSync(join(__dirname, "..", "package.json"), "utf8")
) as PkgJson;

describe("dep-graph", () => {
    it("runtime @suaveplan deps are exactly error + events + types", {
        timeout: 5000,
    }, () => {
        const runtimeScoped = Object.keys(pkg.dependencies ?? {})
            .filter((name) => name.startsWith("@suaveplan/"))
            .sort();
        expect(runtimeScoped).toEqual([
            "@suaveplan/error",
            "@suaveplan/events",
            "@suaveplan/types",
        ]);
    });

    it("no peer @suaveplan deps", { timeout: 5000 }, () => {
        const peers = Object.keys(pkg.peerDependencies ?? {}).filter((n) =>
            n.startsWith("@suaveplan/")
        );
        expect(peers).toEqual([]);
    });

    it("runtime deps are exactly the expected set (sorted)", {
        timeout: 5000,
    }, () => {
        const runtime = Object.keys(pkg.dependencies ?? {}).sort();
        expect(runtime).toEqual([
            "@opentelemetry/api",
            "@suaveplan/error",
            "@suaveplan/events",
            "@suaveplan/types",
            "tslib",
            "zod",
        ]);
    });

    it("package exports map covers every feature module", {
        timeout: 5000,
    }, () => {
        const sub = Object.keys(pkg.exports ?? {}).filter(
            (k) => k !== "./package.json"
        );
        const required = [
            ".",
            "./core/workflow-engine/workflow-engine",
            "./core/workflow-builder/workflow-builder",
            "./core/context/context",
            "./steps/step/step",
            "./steps/parallel-step/parallel-step",
            "./steps/conditional-step/conditional-step",
            "./compensation/saga/saga",
            "./compensation/compensator/compensator",
            "./middleware/hook/hook",
            "./middleware/retry/retry",
            "./errors",
            "./otel",
        ];
        for (const r of required) expect(sub).toContain(r);
        expect(sub.length).toBeGreaterThanOrEqual(12);
    });
});