import { InsufficientPermissionError } from "@tailor-platform/erp-kit/core";
import { createKyselyMock } from "@tailor-platform/sdk/vitest";
import { describe, expect, it } from "vitest";
import type { Namespace } from "../generated/kysely-tailordb";
import { PolicyNotFoundError, InvalidStateError, UnauthorizedError } from "../lib/errors.generated";
import { draftPolicy, activePolicy, inactivePolicy } from "../testing/fixtures";
import { run } from "./deleteAuditPolicy";
import { deleteAuditPolicy } from "./deleteAuditPolicy.generated";

const ctx = { actorId: "test-actor", permissions: ["audit:audit:deleteAuditPolicy"] };

describe("deleteAuditPolicy", () => {
  it("deletes DRAFT policy", async () => {
    const mock = createKyselyMock<Namespace["main-db"]>();
    mock.enqueueResults([draftPolicy]);

    const result = await mock.withTx((trx) => run(trx, { policyId: draftPolicy.id }, ctx));

    expect(result.ok).toBe(true);
    if (result.ok) {
      expect(result.value.policyId).toBe(draftPolicy.id);
    }
  });

  it("deletes associated PolicyFieldRules when deleting policy", async () => {
    const mock = createKyselyMock<Namespace["main-db"]>();
    mock.enqueueResults([draftPolicy]);

    const result = await mock.withTx((trx) => run(trx, { policyId: draftPolicy.id }, ctx));

    expect(result.ok).toBe(true);
    // delete should run twice: once for PolicyFieldRules, once for AuditPolicy
    expect(mock.deletes).toHaveLength(2);
  });

  it("does not affect previously recorded audit entries", async () => {
    const mock = createKyselyMock<Namespace["main-db"]>();
    mock.enqueueResults([draftPolicy]);

    const result = await mock.withTx((trx) => run(trx, { policyId: draftPolicy.id }, ctx));

    expect(result.ok).toBe(true);
    // delete runs only for PolicyFieldRule and AuditPolicy, not AuditEntry
    expect(mock.deletes).toHaveLength(2);
  });

  it("rejects deletion of ACTIVE policy", async () => {
    const mock = createKyselyMock<Namespace["main-db"]>();
    mock.enqueueResults([activePolicy]);

    const result = await mock.withTx((trx) => run(trx, { policyId: activePolicy.id }, ctx));

    expect(result.ok).toBe(false);
    if (!result.ok) {
      expect(result.error).toBeInstanceOf(InvalidStateError);
    }
  });

  it("rejects deletion of INACTIVE policy", async () => {
    const mock = createKyselyMock<Namespace["main-db"]>();
    mock.enqueueResults([inactivePolicy]);

    const result = await mock.withTx((trx) => run(trx, { policyId: inactivePolicy.id }, ctx));

    expect(result.ok).toBe(false);
    if (!result.ok) {
      expect(result.error).toBeInstanceOf(InvalidStateError);
    }
  });

  it("rejects when policy does not exist", async () => {
    const mock = createKyselyMock<Namespace["main-db"]>();
    mock.enqueueResults([]);

    const result = await mock.withTx((trx) => run(trx, { policyId: "nonexistent" }, ctx));

    expect(result.ok).toBe(false);
    if (!result.ok) {
      expect(result.error).toBeInstanceOf(PolicyNotFoundError);
    }
  });

  it("rejects when caller lacks manageAuditPolicies permission", async () => {
    const mock = createKyselyMock<Namespace["main-db"]>();
    const denied = { actorId: "test-actor", permissions: [] as string[] };
    const cmd = deleteAuditPolicy();

    const result = await mock.withTx((trx) => cmd(trx, { policyId: draftPolicy.id }, denied));

    expect(result.ok).toBe(false);
    if (!result.ok) {
      expect(result.error).toBeInstanceOf(InsufficientPermissionError);
    }
  });

  it("rejects when company-scoped caller deletes policy for a different company", async () => {
    const mock = createKyselyMock<Namespace["main-db"]>();
    mock.enqueueResults([draftPolicy]); // policy with companyId: "company-1"
    const scopedCtx = { ...ctx, companyId: "company-2" };

    const result = await mock.withTx((trx) => run(trx, { policyId: draftPolicy.id }, scopedCtx));

    expect(result.ok).toBe(false);
    if (!result.ok) {
      expect(result.error).toBeInstanceOf(UnauthorizedError);
    }
  });

  it("rejects when global-scoped caller deletes company-scoped policy", async () => {
    const mock = createKyselyMock<Namespace["main-db"]>();
    mock.enqueueResults([draftPolicy]); // policy with companyId: "company-1"
    const globalCtx = { ...ctx, companyId: null };

    const result = await mock.withTx((trx) => run(trx, { policyId: draftPolicy.id }, globalCtx));

    expect(result.ok).toBe(false);
    if (!result.ok) {
      expect(result.error).toBeInstanceOf(UnauthorizedError);
    }
  });
});
