import { describe, expect, it } from "vitest";
import { breadcrumbFor, breadcrumbLabel, type OrgMaps } from "@/lib/org";
import type { Database } from "@/lib/supabase/types";

type Division = Database["public"]["Tables"]["divisions"]["Row"];
type Department = Database["public"]["Tables"]["departments"]["Row"];
type Team = Database["public"]["Tables"]["teams"]["Row"];
type Location = Database["public"]["Tables"]["locations"]["Row"];

const division: Division = { id: "div-1", org_number: "20100000", name: "Produktion" };
const department: Department = { id: "dept-1", org_number: "21100000", name: "Fertigung", division_id: "div-1" };
const team: Team = { id: "team-1", org_number: "22010000", name: "Montage", department_id: "dept-1" };
const location: Location = { id: "loc-1", name: "Wien-Hernals", country: "Österreich" };

const orgMaps: OrgMaps = {
  divisions: new Map([[division.id, division]]),
  departments: new Map([[department.id, department]]),
  teams: new Map([[team.id, team]]),
  locations: new Map([[location.id, location]]),
  divisionList: [division],
  locationList: [location],
};

describe("breadcrumbFor", () => {
  it("resolves division, department (via team), and team from ids", () => {
    const result = breadcrumbFor(orgMaps, division.id, team.id);
    expect(result.division?.name).toBe("Produktion");
    expect(result.department?.name).toBe("Fertigung");
    expect(result.team?.name).toBe("Montage");
  });

  it("has no team/department for a division head with no team (team_id null)", () => {
    const result = breadcrumbFor(orgMaps, division.id, null);
    expect(result.division?.name).toBe("Produktion");
    expect(result.team).toBeUndefined();
    expect(result.department).toBeUndefined();
  });
});

describe("breadcrumbLabel", () => {
  it("joins division › department › team with the SAP-OM breadcrumb separator", () => {
    expect(breadcrumbLabel(orgMaps, division.id, team.id)).toBe("Produktion › Fertigung › Montage");
  });

  it("omits missing segments instead of producing empty separators", () => {
    expect(breadcrumbLabel(orgMaps, division.id, null)).toBe("Produktion");
  });

  it("falls back to a dash when nothing resolves", () => {
    expect(breadcrumbLabel(orgMaps, null, null)).toBe("–");
  });
});