import { describe, expect, it } from "vitest";
import { repos } from "@cfdm/db";
import type { CloudflareClient } from "../src/lib/cf-client.js";
import { buildApp } from "../src/app.js";
import { loadConfig } from "../src/config.js";
import { changeServiceDomain } from "../src/services/change-domain-service.js";
import { updateConfig } from "../src/services/service-config-service.js";

function mockCf(): CloudflareClient {
  return {
    listDnsRecords: async () => [],
    createDnsRecord: async (_zoneId: string, payload: { type: string; name: string; content: string }) => ({
      id: `cf-${payload.name}-${payload.content}`,
      type: payload.type,
      name: payload.name,
      content: payload.content,
      ttl: 1,
      proxied: false,
    }),
    updateDnsRecord: async (
      _zoneId: string,
      id: string,
      payload: { type: string; name: string; content: string },
    ) => ({
      id,
      type: payload.type,
      name: payload.name,
      content: payload.content,
      ttl: 1,
      proxied: false,
    }),
    patchDnsRecord: async (
      _zoneId: string,
      id: string,
      payload: { content?: string },
    ) => ({
      id,
      type: "A",
      name: "app.example.com",
      content: payload.content ?? "1.1.1.1",
      ttl: 1,
      proxied: false,
    }),
    deleteDnsRecord: async () => undefined,
    listZones: async () => [
      { id: "zone-1", name: "example.com", status: "active" },
      { id: "zone-2", name: "other.com", status: "active" },
    ],
  } as unknown as CloudflareClient;
}

describe("change-domain", () => {
  it("dry-run lists FQDN from → to", async () => {
    const app = await buildApp({
      config: { ...loadConfig(), staticDir: null },
      memory: true,
    });
    const cf = mockCf();
    const from = repos.createDomain(app.db, null, "example.com", "zone-1");
    const to = repos.createDomain(app.db, null, "other.com", "zone-2");
    const service = repos.createService(app.db, "App", "app");
    await updateConfig(app.db, cf, service.id, {
      ips: ["1.1.1.1"],
      domains: [{ fqdn: "app.example.com", target_ips: ["1.1.1.1"] }],
    });
    const preview = await changeServiceDomain(app.db, cf, service.id, {
      from_domain_id: from.id,
      to_domain_id: to.id,
      dry_run: true,
    });
    expect(preview.applied).toBe(false);
    expect(preview.items[0]?.from_fqdn).toBe("app.example.com");
    expect(preview.items[0]?.to_fqdn).toBe("app.other.com");
    await app.close();
  });
});