import { fireEvent, screen, waitFor } from "@testing-library/react";
import { describe, expect, it, vi } from "vitest";
import { VendorDialog } from "@/app/(protected)/workorders/_components/list/table/cells/vendor-dialog";
import type { VendorDropdownItem } from "@/domain/work-orders/types/work-order";
import { renderWithProviders } from "@/test/test-utils";

vi.mock("@/domain/vendors/use-cases/use-create-vendor", () => ({
  useCreateVendor: () => ({
    mutateAsync: vi.fn(),
    isPending: false,
  }),
}));

const jordan: VendorDropdownItem = {
  id: 10,
  companyName: "Gateway Plumbing",
  contactName: "Jordan Lee",
  tradeSpecialties: "Plumbing",
  address: "1 Main St",
  distanceMiles: 4.2,
  email: "dispatch@gateway.test",
};

const casey: VendorDropdownItem = {
  ...jordan,
  id: 11,
  contactName: "Casey New",
};

const avery: VendorDropdownItem = {
  ...jordan,
  id: 12,
  companyName: "Coastal HVAC",
  contactName: "Avery Chen",
  tradeSpecialties: "HVAC",
};

function renderAssigned(onSave = vi.fn()) {
  renderWithProviders(
    <VendorDialog
      open
      onOpenChange={vi.fn()}
      vendorId={10}
      company="Gateway Plumbing"
      tech="Jordan Lee"
      techPhone="(314) 555-0100"
      vendors={[jordan, casey]}
      onSave={onSave}
    />,
  );
  return onSave;
}

describe("VendorDialog save gate", () => {
  it("does not persist when the empty modal is saved unchanged", () => {
    const onSave = vi.fn();
    renderWithProviders(
      <VendorDialog
        open
        onOpenChange={vi.fn()}
        vendorId=""
        company=""
        tech=""
        vendors={[]}
        onSave={onSave}
      />,
    );

    expect(screen.getByRole("button", { name: /pick a company first/i })).toBeDisabled();
    const save = screen.getByRole("button", { name: /^save$/i });
    expect(save).not.toBeDisabled();
    expect(save).toHaveAttribute("aria-disabled", "true");
    expect(save).toHaveStyle({ opacity: "0.5", cursor: "not-allowed" });
    fireEvent.click(save);
    expect(onSave).not.toHaveBeenCalled();
  });

  it("does not persist when an existing assignment is saved unchanged", () => {
    const onSave = renderAssigned();
    fireEvent.click(screen.getByRole("button", { name: /^save$/i }));
    expect(onSave).not.toHaveBeenCalled();
  });

  it("persists after the selected technician changes", async () => {
    const onSave = renderAssigned();
    fireEvent.click(screen.getByRole("button", { name: /jordan lee/i }));
    fireEvent.click(await screen.findByRole("button", { name: /casey new/i }));
    fireEvent.click(screen.getByRole("button", { name: /^save$/i }));

    await waitFor(() => {
      expect(onSave).toHaveBeenCalledWith(
        expect.objectContaining({
          vendorId: "11",
          tech: "Casey New",
          company: "Gateway Plumbing",
        }),
      );
    });
  });

  it("persists a company-only assignment without selecting a technician", async () => {
    const onSave = vi.fn();
    renderWithProviders(
      <VendorDialog
        open
        onOpenChange={vi.fn()}
        vendorId=""
        company=""
        tech=""
        vendors={[jordan, casey]}
        onSave={onSave}
      />,
    );

    fireEvent.click(screen.getByRole("button", { name: /select company/i }));
    fireEvent.click(await screen.findByRole("button", { name: "Gateway Plumbing" }));
    fireEvent.click(screen.getByRole("button", { name: /^save$/i }));

    expect(onSave).toHaveBeenCalledWith(
      expect.objectContaining({
        vendorId: "10",
        company: "Gateway Plumbing",
        tech: "",
        techPhone: "",
      }),
    );
  });

  it("only offers technicians from the selected company", async () => {
    renderWithProviders(
      <VendorDialog
        open
        onOpenChange={vi.fn()}
        vendorId=""
        company=""
        tech=""
        vendors={[jordan, casey, avery]}
        onSave={vi.fn()}
      />,
    );

    fireEvent.click(screen.getByRole("button", { name: /select company/i }));
    fireEvent.click(await screen.findByRole("button", { name: "Coastal HVAC" }));
    fireEvent.click(screen.getByRole("button", { name: /select technician/i }));

    expect(await screen.findByRole("button", { name: "Avery Chen" })).toBeInTheDocument();
    expect(screen.queryByRole("button", { name: "Jordan Lee" })).not.toBeInTheDocument();
    expect(screen.queryByRole("button", { name: "Casey New" })).not.toBeInTheDocument();
  });

  it("does not persist after a notes-only change", () => {
    const onSave = renderAssigned();
    fireEvent.change(screen.getByPlaceholderText("Contact preferences, availability, etc."), {
      target: { value: "Gate code 12" },
    });
    fireEvent.click(screen.getByRole("button", { name: /^save$/i }));
    expect(onSave).not.toHaveBeenCalled();
  });
});