import { readFile } from "node:fs/promises";
import path from "node:path";
import { fileURLToPath } from "node:url";
import { describe, expect, it } from "vitest";
import { parse } from "yaml";

interface ComposeService {
  healthcheck?: unknown;
  image?: string;
  ports?: string[];
  volumes?: string[];
}

interface ComposeDocument {
  services?: Record<string, ComposeService>;
  volumes?: Record<string, unknown>;
}

const repositoryRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");

describe("development infrastructure", () => {
  it("has valid, local-only, version-pinned Compose services", async () => {
    const source = await readFile(
      path.join(repositoryRoot, "infrastructure", "compose.yaml"),
      "utf8",
    );
    const compose = parse(source) as ComposeDocument;
    const postgres = compose.services?.postgres;
    const objectStorage = compose.services?.["object-storage"];

    expect(postgres?.image).toBe("postgres:18.4-alpine3.24");
    expect(objectStorage?.image).toBe("chrislusf/seaweedfs:4.28");
    expect(postgres?.healthcheck).toBeDefined();
    expect(objectStorage?.healthcheck).toBeDefined();

    for (const service of [postgres, objectStorage]) {
      expect(service).toBeDefined();
      expect(service?.image).not.toMatch(/:latest$/u);
      expect(service?.ports?.every((port) => port.startsWith("127.0.0.1:"))).toBe(true);
      expect(service?.volumes?.length).toBeGreaterThan(0);
    }

    expect(compose.volumes).toHaveProperty("postgres-data");
    expect(compose.volumes).toHaveProperty("object-storage-data");
  });

  it("has a parseable CI workflow with a single repository gate", async () => {
    const source = await readFile(
      path.join(repositoryRoot, ".github", "workflows", "ci.yml"),
      "utf8",
    );
    const workflow = parse(source) as {
      jobs?: { verify?: { steps?: Array<{ run?: string }> } };
    };
    const commands = workflow.jobs?.verify?.steps?.flatMap((step) => step.run ?? []) ?? [];

    expect(workflow.jobs?.verify).toBeDefined();
    expect(commands).toContain("pnpm install --frozen-lockfile");
    expect(commands).toContain("pnpm ci");
  });
});