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

const pkgPath = join(__dirname, "..", "package.json");
const pkg = JSON.parse(readFileSync(pkgPath, "utf8")) as {
    name: string;
    version: string;
    sideEffects: boolean;
    dependencies: Record<string, string>;
    devDependencies: Record<string, string>;
    exports: Record<string, unknown>;
    files: string[];
};

describe("@suaveplan/emailer package.json", () => {
    it("starts at 0.1.0", { timeout: 5000 }, () => {
        expect(pkg.version).toBe("0.1.0");
    });

    it("is tree-shake friendly", { timeout: 5000 }, () => {
        expect(pkg.sideEffects).toBe(false);
    });

    it("depends on declared workspace siblings only", { timeout: 5000 }, () => {
        for (const dep of [
            "@suaveplan/error",
            "@suaveplan/events",
            "@suaveplan/logger",
            "@suaveplan/queue",
            "@suaveplan/timing",
            "@suaveplan/types",
        ]) {
            expect(pkg.dependencies[dep]).toBe("workspace:^");
        }
        // No nodemailer / googleapis hard deps.
        expect(pkg.dependencies["nodemailer"]).toBeUndefined();
        expect(pkg.dependencies["googleapis"]).toBeUndefined();
    });

    it("declares subpath exports", { timeout: 5000 }, () => {
        for (const subpath of [
            ".",
            "./error-codes",
            "./schemas/schemas",
            "./types/emailer",
            "./core/email-service",
            "./core/retry",
            "./core/validate",
            "./transports/dummy",
            "./transports/smtp",
            "./transports/gmail-rest",
            "./fakes/fake-smtp-client",
            "./otel/metrics",
        ]) {
            expect(pkg.exports[subpath]).toBeDefined();
        }
    });

    it("publishes dist, src, README.md", { timeout: 5000 }, () => {
        expect(pkg.files).toEqual(["dist", "src", "README.md"]);
    });
});