import { afterEach, describe, expect, it } from "vitest";
import {
  areMocksEnabled,
  getMockApprovalPolicies,
  getMockApprovals,
  getMockDepartments,
  getMockGlAccounts,
  getMockInvoices,
  getMockPendingApprovals,
  getMockUsers,
  getMockVendors,
  resetMockApprovalPolicies,
  resetMockApprovals,
  resetMockDepartments,
  resetMockGlAccounts,
  resetMockInvoices,
  resetMockUsers,
  resetMockVendors,
  updateMockApprovalStatus,
  updateMockInvoicePayDate,
  upsertMockDepartment,
  upsertMockGlAccount,
  upsertMockVendor,
  upsertMockUser,
  upsertMockApprovalPolicy,
} from "@/mocks";

describe("mocks module", () => {
  afterEach(() => {
    resetMockInvoices();
    resetMockVendors();
    resetMockGlAccounts();
    resetMockDepartments();
    resetMockUsers();
    resetMockApprovalPolicies();
    resetMockApprovals();
  });

  it("defaults to mocks enabled", () => {
    expect(areMocksEnabled()).toBe(true);
  });

  it("exposes sample invoices and vendors", () => {
    expect(getMockVendors().length).toBeGreaterThan(0);
    expect(getMockInvoices().length).toBeGreaterThanOrEqual(6);
  });

  it("seeds at least two invoices per dashboard tab", () => {
    const invoices = getMockInvoices();
    const pending = invoices.filter((invoice) => invoice.status === "pending_approval");
    const ready = invoices.filter((invoice) => invoice.status === "approved");

    expect(pending.length).toBeGreaterThanOrEqual(2);
    expect(ready.length).toBeGreaterThanOrEqual(2);
    expect(invoices.every((invoice) => invoice.invoiceNumbers && invoice.amount >= 0)).toBe(true);
  });

  it("updates pay date in the mutable mock store", () => {
    const before = getMockInvoices().find((invoice) => invoice.id === "inv-1");
    expect(before).toBeDefined();

    const updated = updateMockInvoicePayDate("inv-1", "2026-08-18");
    expect(updated.payDate).toBe("2026-08-18");

    const after = getMockInvoices().find((invoice) => invoice.id === "inv-1");
    expect(after?.payDate).toBe("2026-08-18");
  });

  it("throws when updating an unknown invoice", () => {
    expect(() => updateMockInvoicePayDate("missing", "2026-08-18")).toThrow(
      /Mock invoice not found/,
    );
  });

  it("seeds settings entities and supports upsert", () => {
    expect(getMockVendors().length).toBeGreaterThanOrEqual(4);
    expect(getMockGlAccounts().length).toBeGreaterThanOrEqual(3);
    expect(getMockDepartments().length).toBeGreaterThanOrEqual(3);
    expect(getMockUsers().length).toBeGreaterThanOrEqual(3);
    expect(getMockApprovalPolicies().length).toBeGreaterThanOrEqual(3);

    const vendor = upsertMockVendor({
      id: "vendor-new",
      name: "New Vendor",
      email: "new@example.com",
      defaultPaymentMethod: "ach",
    });
    expect(getMockVendors().some((row) => row.id === vendor.id)).toBe(true);

    upsertMockGlAccount({ id: "gl-new", code: "9999", name: "Misc" });
    expect(getMockGlAccounts().some((row) => row.id === "gl-new")).toBe(true);

    upsertMockDepartment({ id: "dept-new", code: "NEW", name: "New Dept" });
    expect(getMockDepartments().some((row) => row.id === "dept-new")).toBe(true);

    upsertMockUser({
      id: "user-new",
      name: "New User",
      email: "new.user@seahaven.example",
      role: "approver",
    });
    expect(getMockUsers().some((row) => row.id === "user-new")).toBe(true);

    upsertMockApprovalPolicy({
      id: "policy-new",
      name: "Ad hoc",
      amountThreshold: 250,
      approverRole: "admin",
    });
    expect(getMockApprovalPolicies().some((row) => row.id === "policy-new")).toBe(true);
  });

  it("lists pending approvals and updates status", () => {
    const pending = getMockPendingApprovals();
    expect(pending.length).toBeGreaterThanOrEqual(2);
    expect(getMockApprovals().length).toBeGreaterThanOrEqual(pending.length);

    const first = pending[0];
    const updated = updateMockApprovalStatus(first.id, "approved");
    expect(updated.status).toBe("approved");
    expect(getMockPendingApprovals().some((row) => row.id === first.id)).toBe(false);
  });

  it("throws when updating an unknown approval", () => {
    expect(() => updateMockApprovalStatus("missing", "rejected")).toThrow(
      /Mock approval not found/,
    );
  });
});