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 exactly the expected set (sorted)", {
        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/api-types",
            "@suaveplan/error",
            "tslib",
            "zod",
        ]);
    });

    it("zero peerDependencies", { timeout: 5000 }, () => {
        const pkg = JSON.parse(
            readFileSync(join(__dirname, "..", "package.json"), "utf8")
        ) as { peerDependencies?: Record<string, string> };
        expect(Object.keys(pkg.peerDependencies ?? {})).toEqual([]);
    });
});

describe("zod-import-form", () => {
    it("every src file uses default-import z", { timeout: 5000 }, () => {
        const { readdirSync, statSync, readFileSync } =
            require("node:fs") as typeof import("node:fs");
        function* walk(dir: string): Generator<string> {
            for (const entry of readdirSync(dir)) {
                const p = join(dir, entry);
                if (statSync(p).isDirectory()) {
                    yield* walk(p);
                } else if (p.endsWith(".ts")) {
                    yield p;
                }
            }
        }
        const srcDir = join(__dirname, "..", "src");
        const bad: string[] = [];
        for (const file of walk(srcDir)) {
            const src = readFileSync(file, "utf8");
            if (/import\s*\{\s*z\s*\}\s*from\s*["']zod["']/.test(src)) {
                bad.push(file);
            }
        }
        expect(bad).toEqual([]);
    });
});