import { afterEach, describe, expect, it } from "vitest";
import { TestSqliteDatabase } from "./test-support.js";
import { AuditLogRepository } from "../../../database/repositories/audit-log-repository.js";

describe("AuditLogRepository", () => {
  let adapter: TestSqliteDatabase | null = null;

  afterEach(async () => {
    if (adapter) {
      await adapter.close();
      adapter = null;
    }
  });

  async function createRepository(
    onWrite?: () => void | Promise<void>,
  ): Promise<AuditLogRepository> {
    adapter = new TestSqliteDatabase();
    const context = await adapter.connect();
    await adapter.exec(`
      INSERT INTO users (id, username, password_hash)
      VALUES ('user-1', 'alice', 'hash'), ('user-2', 'bob', 'hash');
    `);

    return new AuditLogRepository(context, onWrite);
  }

  it("creates, filters, pages, and lists actions", async () => {
    const repo = await createRepository();

    await repo.create({
      userId: "user-1",
      username: "alice",
      action: "create_host",
      resourceType: "host",
      resourceId: "1",
      success: true,
      timestamp: "2026-06-27T00:00:00.000Z",
    });
    await repo.create({
      userId: "user-2",
      username: "bob",
      action: "delete_host",
      resourceType: "host",
      resourceId: "2",
      success: false,
      timestamp: "2026-06-27T01:00:00.000Z",
    });

    const page = await repo.listPage({
      filters: {
        resourceType: "host",
        success: false,
        startDate: "2026-06-27T00:30:00.000Z",
      },
      limit: 10,
      offset: 0,
    });

    expect(page.total).toBe(1);
    expect(page.logs[0]).toMatchObject({
      userId: "user-2",
      action: "delete_host",
      success: false,
    });
    expect(await repo.listDistinctActions()).toEqual([
      "create_host",
      "delete_host",
    ]);
  });

  it("deletes logs by user id and only runs write hook for deleted rows", async () => {
    let writeCount = 0;
    const repo = await createRepository(() => {
      writeCount += 1;
    });

    await repo.create({
      userId: "user-1",
      username: "alice",
      action: "login",
      resourceType: "auth",
      success: true,
    });
    await repo.create({
      userId: "user-2",
      username: "bob",
      action: "login",
      resourceType: "auth",
      success: true,
    });

    expect(await repo.deleteByUserId("missing")).toBe(0);
    expect(writeCount).toBe(2);

    expect(await repo.deleteByUserId("user-1")).toBe(1);
    expect(writeCount).toBe(3);
    expect(
      (
        await repo.listPage({
          filters: {},
          limit: 10,
          offset: 0,
        })
      ).logs.map((log) => log.userId),
    ).toEqual(["user-2"]);
  });

  it("keeps entries when their user is deleted, detaching instead of removing", async () => {
    const repo = await createRepository();

    await repo.create({
      userId: "user-1",
      username: "alice",
      action: "delete_host",
      resourceType: "host",
      resourceId: "9",
      success: true,
      timestamp: "2026-07-01T00:00:00.000Z",
    });
    await repo.create({
      userId: "user-2",
      username: "bob",
      action: "create_host",
      resourceType: "host",
      resourceId: "8",
      success: true,
      timestamp: "2026-07-02T00:00:00.000Z",
    });

    expect(await repo.anonymizeByUserId("user-1")).toBe(1);

    const { logs } = await repo.listPage({ filters: {}, limit: 10, offset: 0 });
    expect(logs).toHaveLength(2);

    const detached = logs.find((log) => log.action === "delete_host");
    // The account is gone; the entry and its actor name are not.
    expect(detached?.userId).toBeNull();
    expect(detached?.username).toBe("alice");
    expect(logs.find((log) => log.action === "create_host")?.userId).toBe(
      "user-2",
    );
  });

  it("reports nothing to detach for a user with no entries", async () => {
    const repo = await createRepository();

    expect(await repo.anonymizeByUserId("user-2")).toBe(0);
  });
});