import { describe, expect, it } from "vitest";

import { DomainEventName, WEBHOOK_EVENTS, createDomainEvent, generateId } from "./events.js";

describe("generateId", () => {
  it("produces prefixed ids", () => {
    const id = generateId("evt");
    expect(id.startsWith("evt_")).toBe(true);
    // 32 hex chars (uuid without dashes).
    expect(id.slice(4)).toMatch(/^[0-9a-f]{32}$/);
  });

  it("ids are unique", () => {
    const ids = new Set(Array.from({ length: 1000 }, () => generateId("x")));
    expect(ids.size).toBe(1000);
  });
});

describe("createDomainEvent", () => {
  it("builds a valid envelope", () => {
    const event = createDomainEvent(
      DomainEventName.PAGE_CREATED,
      { pageId: "pg_1" },
      {
        workspaceId: "wsp_1",
        actorId: "usr_1",
      },
    );
    expect(event).toMatchObject({
      id: expect.stringMatching(/^evt_[0-9a-f]{32}$/),
      name: "page.created",
      workspaceId: "wsp_1",
      actorId: "usr_1",
      payload: { pageId: "pg_1" },
    });
    expect(typeof event.ts).toBe("string");
    expect(Number.isFinite(Date.parse(event.ts))).toBe(true);
  });

  it("omits optional workspaceId/actorId when not provided", () => {
    const event = createDomainEvent(DomainEventName.USER_REGISTER, { userId: "u" });
    expect(event.workspaceId).toBeUndefined();
    expect(event.actorId).toBeUndefined();
  });

  it("allows ts override (replay)", () => {
    const event = createDomainEvent(
      DomainEventName.PAGE_UPDATED,
      {},
      { ts: "2024-01-01T00:00:00.000Z" },
    );
    expect(event.ts).toBe("2024-01-01T00:00:00.000Z");
  });
});

describe("DomainEventName catalog", () => {
  it("contains all expected events", () => {
    const expected = [
      "page.created",
      "page.updated",
      "page.deleted",
      "page.shared",
      "database.created",
      "database.updated",
      "record.created",
      "record.updated",
      "comment.created",
      "form.submitted",
      "automation.executed",
      "file.uploaded",
      "api_key.created",
      "user.login",
      "user.logout",
      "user.register",
      "permission.changed",
      "workspace.created",
    ];
    for (const name of expected) {
      expect(Object.values(DomainEventName)).toContain(name);
    }
  });

  it("webhook catalog is a subset of the domain catalog", () => {
    const all = new Set(Object.values(DomainEventName));
    for (const w of WEBHOOK_EVENTS) {
      expect(all.has(w)).toBe(true);
    }
  });
});