/**
 * Integration tests for the Crewing Phase 3a candidate server actions
 * (addCandidate / updateCandidate). Mirrors the requisitions test setup.
 *
 * The CrewMember table is introduced in this phase, so afterEach wipes it (and
 * its CrewAction rows) wholesale — no pre-existing rows to preserve.
 */
import { vi, describe, it, expect, beforeAll, afterAll, afterEach } from "vitest";

vi.mock("@/auth", () => ({ auth: vi.fn() }));
vi.mock("next/cache", () => ({ revalidatePath: vi.fn() }));
vi.mock("@/lib/feature-flags", () => ({ CREWING_ENABLED: true, INVENTORY_ENABLED: true }));

import { auth } from "@/auth";
import { db } from "@/lib/db";
import { addCandidate, updateCandidate } from "@/app/(portal)/crewing/candidates/actions";
import { makeSession, getSeedUser, fd } from "./helpers";
import type { Role } from "@prisma/client";

let managerId: string;
let siteStaffId: string;
let rankId: string;

const SS_EMAIL = "sitestaff@itcand.local";

const as = (userId: string, role: Role) =>
  vi.mocked(auth as unknown as () => Promise<unknown>).mockResolvedValue(makeSession(userId, role));

beforeAll(async () => {
  managerId = (await getSeedUser("manager@pelagia.local")).id;
  const ss = await db.user.upsert({
    where: { email: SS_EMAIL },
    update: { role: "SITE_STAFF", isActive: true },
    create: { employeeId: "ITCAND-SS", email: SS_EMAIL, name: "Site Staff Cand", role: "SITE_STAFF" },
  });
  siteStaffId = ss.id;
  rankId = (await db.rank.findFirstOrThrow()).id;
});

afterEach(async () => {
  await db.crewAction.deleteMany({ where: { crewMemberId: { not: null } } });
  await db.crewMember.deleteMany({});
  vi.clearAllMocks();
});

afterAll(async () => {
  await db.user.deleteMany({ where: { email: SS_EMAIL } });
});

describe("addCandidate", () => {
  it("adds a NEW candidate with an audit action and sensible defaults", async () => {
    as(managerId, "MANAGER");
    const res = await addCandidate(fd({ name: "Asha Rao", source: "CAREERS", appliedRankId: rankId, experienceMonths: "60" }));
    expect("ok" in res && res.ok).toBe(true);

    const c = await db.crewMember.findFirstOrThrow({ include: { actions: true } });
    expect(c.name).toBe("Asha Rao");
    expect(c.type).toBe("NEW");
    expect(c.status).toBe("CANDIDATE");
    expect(c.appliedRankId).toBe(rankId);
    expect(c.experienceMonths).toBe(60);
    expect(c.employeeId).toBeNull();
    expect(c.actions[0].actionType).toBe("CANDIDATE_ADDED");
    expect(c.actions[0].actorId).toBe(managerId);
  });

  it("an EX_HAND source yields type EX_HAND and status EX_HAND", async () => {
    as(managerId, "MANAGER");
    await addCandidate(fd({ name: "Returning Ravi", source: "EX_HAND" }));
    const c = await db.crewMember.findFirstOrThrow();
    expect(c.type).toBe("EX_HAND");
    expect(c.status).toBe("EX_HAND");
  });

  it("requires a name", async () => {
    as(managerId, "MANAGER");
    const res = await addCandidate(fd({ name: "  ", source: "CAREERS" }));
    expect("error" in res).toBe(true);
    expect(await db.crewMember.count()).toBe(0);
  });

  it("is rejected for roles without manage_candidates (site staff, accounts)", async () => {
    as(siteStaffId, "SITE_STAFF");
    expect(await addCandidate(fd({ name: "Nope" }))).toEqual({ error: "Unauthorized" });
    as(managerId, "ACCOUNTS");
    expect(await addCandidate(fd({ name: "Nope" }))).toEqual({ error: "Unauthorized" });
    expect(await db.crewMember.count()).toBe(0);
  });
});

describe("updateCandidate", () => {
  it("edits fields and writes a CANDIDATE_UPDATED action", async () => {
    as(managerId, "MANAGER");
    await addCandidate(fd({ name: "Edit Me", source: "CAREERS", experienceMonths: "12" }));
    const c = await db.crewMember.findFirstOrThrow();

    const res = await updateCandidate(fd({ id: c.id, name: "Edited Name", source: "REFERRAL", experienceMonths: "24" }));
    expect("ok" in res && res.ok).toBe(true);

    const after = await db.crewMember.findUniqueOrThrow({ where: { id: c.id }, include: { actions: true } });
    expect(after.name).toBe("Edited Name");
    expect(after.source).toBe("REFERRAL");
    expect(after.experienceMonths).toBe(24);
    expect(after.actions.some((a) => a.actionType === "CANDIDATE_UPDATED")).toBe(true);
  });

  it("does not downgrade an onboarded EMPLOYEE back to a candidate", async () => {
    as(managerId, "MANAGER");
    await addCandidate(fd({ name: "Hired Hannah", source: "CAREERS" }));
    const c = await db.crewMember.findFirstOrThrow();
    await db.crewMember.update({ where: { id: c.id }, data: { status: "EMPLOYEE" } });

    await updateCandidate(fd({ id: c.id, name: "Hired Hannah", source: "CAREERS" }));
    expect((await db.crewMember.findUniqueOrThrow({ where: { id: c.id } })).status).toBe("EMPLOYEE");
  });

  it("rejects an unknown id", async () => {
    as(managerId, "MANAGER");
    const res = await updateCandidate(fd({ id: "nonexistent", name: "X", source: "CAREERS" }));
    expect("error" in res).toBe(true);
  });
});