import { InsufficientPermissionError } from "@tailor-platform/erp-kit/core";
import type { CommandContext } 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 "./deactivateAuditPolicy";
import { deactivateAuditPolicy } from "./deactivateAuditPolicy.generated";

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

describe("deactivateAuditPolicy", () => {
  it("deactivates ACTIVE policy to INACTIVE", async () => {
    const mock = createKyselyMock<Namespace["main-db"]>();
    mock.enqueueResults([activePolicy], [{ ...activePolicy, status: "INACTIVE" }]);

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

    expect(result.ok).toBe(true);
    if (result.ok) {
      expect(result.value.policy.status).toBe("INACTIVE");
    }
  });

  it("stops new audit capture after deactivation", async () => {
    const mock = createKyselyMock<Namespace["main-db"]>();
    mock.enqueueResults([activePolicy], [{ ...activePolicy, status: "INACTIVE" }]);

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

    expect(result.ok).toBe(true);
    if (result.ok) {
      expect(result.value.policy.status).toBe("INACTIVE");
    }
    // Verify that the DB update sets status to INACTIVE, which is the gate that stops logAuditEvent capture
    expect(mock.updates[0].updateValues()).toEqual(expect.objectContaining({ status: "INACTIVE" }));
    expect(mock.updates).toHaveLength(1);
  });

  it("does not delete previously recorded audit entries", async () => {
    const mock = createKyselyMock<Namespace["main-db"]>();
    mock.enqueueResults([activePolicy], [{ ...activePolicy, status: "INACTIVE" }]);

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

    expect(result.ok).toBe(true);
    if (result.ok) {
      expect(result.value.policy.status).toBe("INACTIVE");
    }
    // Verify no delete operations are issued — previously recorded audit entries are preserved
    expect(mock.deletes).toHaveLength(0);
  });

  it("rejects deactivation of 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(false);
    if (!result.ok) {
      expect(result.error).toBeInstanceOf(InvalidStateError);
    }
  });

  it("rejects deactivation 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 command = deactivateAuditPolicy();
    const noPermCtx: CommandContext = {
      actorId: "test-actor",
      permissions: [],
    };

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

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

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

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

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

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

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

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