import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";

vi.mock("@capakraken/application", async (importOriginal) => {
  const actual = await importOriginal<typeof import("@capakraken/application")>();
  return {
    ...actual,
    isChargeabilityActualBooking: actual.isChargeabilityActualBooking,
    listAssignmentBookings: vi.fn(),
  };
});

import { listAssignmentBookings } from "@capakraken/application";
import { checkChargeabilityAlerts } from "../lib/chargeability-alerts.js";

describe("chargeability alerts", () => {
  beforeEach(() => {
    vi.clearAllMocks();
    vi.useFakeTimers();
    vi.setSystemTime(new Date("2026-01-15T12:00:00.000Z"));
  });

  afterEach(() => {
    vi.useRealTimers();
  });

  it("creates an alert when a regional holiday reduces booked hours below threshold", async () => {
    const notifications: Array<{ userId: string; title: string; body?: string }> = [];
    const db = {
      resource: {
        findMany: vi.fn().mockResolvedValue([
          {
            id: "res_1",
            displayName: "Bruce Banner",
            fte: 1,
            availability: { monday: 8, tuesday: 8, wednesday: 8, thursday: 8, friday: 8 },
            countryId: "country_de",
            metroCityId: null,
            federalState: "BY",
            chargeabilityTarget: 21,
            country: {
              id: "country_de",
              code: "DE",
              dailyWorkingHours: 8,
              scheduleRules: null,
            },
            managementLevelGroup: { targetPercentage: 0.21 },
            metroCity: null,
          },
        ]),
      },
      vacation: {
        findMany: vi.fn().mockResolvedValue([]),
      },
      notification: {
        findFirst: vi.fn().mockResolvedValue(null),
        create: vi.fn().mockImplementation(async ({ data }) => {
          notifications.push(data);
          return { id: `notification_${notifications.length}`, userId: data.userId };
        }),
      },
      user: {
        findMany: vi.fn().mockResolvedValue([{ id: "manager_1" }]),
      },
    };

    vi.mocked(listAssignmentBookings).mockResolvedValue([
      {
        id: "assignment_1",
        projectId: "project_1",
        resourceId: "res_1",
        startDate: new Date("2026-01-05T00:00:00.000Z"),
        endDate: new Date("2026-01-06T00:00:00.000Z"),
        hoursPerDay: 8,
        dailyCostCents: 0,
        status: "CONFIRMED",
        project: {
          id: "project_1",
          name: "Gamma",
          shortCode: "GAM",
          status: "ACTIVE",
          orderType: "CLIENT",
          dynamicFields: null,
        },
        resource: { id: "res_1", displayName: "Bruce Banner", chapter: "CGI" },
      },
    ]);

    const alertCount = await checkChargeabilityAlerts(db);

    expect(alertCount).toBe(1);
    expect(notifications).toHaveLength(1);
    expect(notifications[0]?.title).toContain("Bruce Banner");
    expect(notifications[0]?.body).toContain("gap: 16pp");
  });
});