import { describe, expect, it } from "vitest";
import { createMemoryDb, repos, runMigrations } from "@cfdm/db";
import { SYNC_CONFLICT, SYNC_ERROR, SYNC_SYNCED } from "@cfdm/shared";
import type { CloudflareClient } from "../src/lib/cf-client.js";
import { pullSync } from "../src/services/sync-service.js";

const ZONE = "rkns.top";
const CF_ZONE_ID = "zone-rkns";

function mockCf(remote: Array<{
  id: string;
  type: string;
  name: string;
  content: string;
}>): CloudflareClient {
  return {
    listDnsRecords: async () =>
      remote.map((record) => ({
        ...record,
        ttl: 1,
        proxied: false,
      })),
  } as unknown as CloudflareClient;
}

function setupDb() {
  const { db, sqlite } = createMemoryDb();
  runMigrations(sqlite);
  return db;
}

describe("pullSync", () => {
  it("reconciles short local names with Cloudflare FQDNs", async () => {
    const db = setupDb();
    const domain = repos.createDomain(db, null, ZONE, CF_ZONE_ID);

    repos.insertDnsRecord(
      db,
      domain.id,
      "A",
      "de",
      "193.233.134.103",
      1,
      false,
      null,
      SYNC_CONFLICT,
      "local",
      "cf-de",
    );

    const cf = mockCf([
      {
        id: "cf-de",
        type: "A",
        name: "de.rkns.top",
        content: "193.233.134.103",
      },
    ]);

    const changes = await pullSync(db, cf, domain);
    expect(changes).toBeGreaterThan(0);

    const records = repos.listDnsByDomain(db, domain.id);
    expect(records).toHaveLength(1);
    expect(records[0].name).toBe("de.rkns.top");
    expect(records[0].sync_status).toBe(SYNC_SYNCED);
  });

  it("marks local record as conflict when Cloudflare has another type", async () => {
    const db = setupDb();
    const domain = repos.createDomain(db, null, ZONE, CF_ZONE_ID);

    repos.insertDnsRecord(
      db,
      domain.id,
      "A",
      "mhome",
      "185.244.181.61",
      1,
      false,
      null,
      SYNC_ERROR,
      "local",
      null,
    );

    const cf = mockCf([
      {
        id: "cf-mhome",
        type: "CNAME",
        name: "mhome.rkns.top",
        content: "mmsk.rkns.top",
      },
    ]);

    await pullSync(db, cf, domain);

    const records = repos.listDnsByDomain(db, domain.id);
    const localA = records.find((r) => r.record_type === "A");
    expect(localA?.sync_status).toBe(SYNC_CONFLICT);
    expect(localA?.last_error).toBe("type mismatch with cloudflare");

    const localCname = records.find((r) => r.record_type === "CNAME");
    expect(localCname?.sync_status).toBe(SYNC_SYNCED);
  });
});