import { describe, expect, it } from "vitest";
import {
  computeVendorDialogCanSubmit,
  type VendorDialogSubmitSnapshot,
} from "@/app/(protected)/workorders/_components/list/table/cells/vendor-dialog-can-submit";

const empty: VendorDialogSubmitSnapshot = {
  company: "",
  selectedKey: "",
  phone: "",
  notes: "",
  pendingCreateCount: 0,
};

const assigned: VendorDialogSubmitSnapshot = {
  company: "Gateway Plumbing",
  selectedKey: "10",
  phone: "(314) 555-0100",
  notes: "",
  pendingCreateCount: 0,
};

describe("computeVendorDialogCanSubmit", () => {
  it("rejects an empty untouched assignment", () => {
    expect(
      computeVendorDialogCanSubmit({
        current: empty,
        baseline: empty,
      }),
    ).toBe(false);
  });

  it("rejects an existing assignment with no field changes", () => {
    expect(
      computeVendorDialogCanSubmit({
        current: assigned,
        baseline: assigned,
      }),
    ).toBe(false);
  });

  it("allows save after the technician key changes", () => {
    expect(
      computeVendorDialogCanSubmit({
        current: { ...assigned, selectedKey: "11" },
        baseline: assigned,
      }),
    ).toBe(true);
  });

  it("allows save when a new technician is staged", () => {
    expect(
      computeVendorDialogCanSubmit({
        current: { ...assigned, selectedKey: "draft-1", pendingCreateCount: 1 },
        baseline: assigned,
      }),
    ).toBe(true);
  });

  it("rejects notes-only changes because notes are not persisted", () => {
    expect(
      computeVendorDialogCanSubmit({
        current: { ...assigned, notes: "Call before arrival" },
        baseline: assigned,
      }),
    ).toBe(false);
  });

  it("does not allow notes-only save without a company or technician", () => {
    expect(
      computeVendorDialogCanSubmit({
        current: { ...empty, notes: "Call before arrival" },
        baseline: empty,
      }),
    ).toBe(false);
  });

  it("allows a company-only assignment", () => {
    expect(
      computeVendorDialogCanSubmit({
        current: { ...empty, company: "Gateway Plumbing" },
        baseline: empty,
      }),
    ).toBe(true);
  });

  it("rejects a technician without a company", () => {
    expect(
      computeVendorDialogCanSubmit({
        current: { ...empty, selectedKey: "10" },
        baseline: empty,
      }),
    ).toBe(false);
  });
});