import { SystemRole } from "@capakraken/shared";
import { describe, expect, it, vi } from "vitest";
import { createCallerFactory } from "../trpc.js";
import { holidayCalendarRouter } from "../router/holiday-calendar.js";

vi.mock("../lib/audit.js", () => ({
  createAuditEntry: vi.fn().mockResolvedValue(undefined),
}));

const createCaller = createCallerFactory(holidayCalendarRouter);

function createProtectedCaller(db: Record<string, unknown>) {
  return createCaller({
    session: {
      user: { email: "user@example.com", name: "User", image: null },
      expires: "2026-12-31T00:00:00.000Z",
    },
    db: db as never,
    dbUser: {
      id: "user_1",
      systemRole: SystemRole.USER,
      permissionOverrides: null,
    },
  });
}

function createAdminCaller(db: Record<string, unknown>) {
  return createCaller({
    session: {
      user: { email: "admin@example.com", name: "Admin", image: null },
      expires: "2026-12-31T00:00:00.000Z",
    },
    db: db as never,
    dbUser: {
      id: "admin_1",
      systemRole: SystemRole.ADMIN,
      permissionOverrides: null,
    },
  });
}

describe("holiday calendar router", () => {
  it("merges built-in and scoped custom holidays in preview", async () => {
    const db = {
      country: {
        findUnique: vi.fn().mockResolvedValue({ code: "DE" }),
      },
      metroCity: {
        findUnique: vi.fn().mockResolvedValue({ name: "Augsburg" }),
      },
      holidayCalendar: {
        findMany: vi.fn().mockResolvedValue([
          {
            id: "cal_city",
            name: "Augsburg lokal",
            scopeType: "CITY",
            priority: 10,
            createdAt: new Date("2026-01-01T00:00:00.000Z"),
            entries: [
              {
                date: new Date("2020-01-01T00:00:00.000Z"),
                name: "Augsburg Neujahr",
                isRecurringAnnual: true,
              },
              {
                date: new Date("2020-08-08T00:00:00.000Z"),
                name: "Friedensfest lokal",
                isRecurringAnnual: true,
              },
            ],
          },
        ]),
      },
    };

    const caller = createProtectedCaller(db);
    const result = await caller.previewResolvedHolidays({
      countryId: "country_de",
      metroCityId: "city_augsburg",
      year: 2026,
    });

    expect(db.holidayCalendar.findMany).toHaveBeenCalledWith(
      expect.objectContaining({
        where: expect.objectContaining({
          countryId: "country_de",
          isActive: true,
        }),
      }),
    );
    expect(result).toEqual(
      expect.arrayContaining([
        expect.objectContaining({
          date: "2026-01-01",
          name: "Augsburg Neujahr",
          scopeType: "CITY",
          calendarName: "Augsburg lokal",
        }),
        expect.objectContaining({
          date: "2026-08-08",
          name: "Friedensfest lokal",
          scopeType: "CITY",
          calendarName: "Augsburg lokal",
        }),
      ]),
    );
  });

  it("rejects duplicate calendar scopes on create", async () => {
    const db = {
      country: {
        findUnique: vi
          .fn()
          .mockResolvedValueOnce({ id: "country_de", name: "Deutschland" })
          .mockResolvedValueOnce({ id: "country_de", name: "Deutschland" }),
      },
      metroCity: {
        findUnique: vi.fn(),
      },
      holidayCalendar: {
        findFirst: vi.fn().mockResolvedValue({ id: "existing_scope" }),
        create: vi.fn(),
      },
      auditLog: {
        create: vi.fn().mockResolvedValue({}),
      },
    };

    const caller = createAdminCaller(db);

    await expect(caller.createCalendar({
      name: "Deutschland Standard",
      scopeType: "COUNTRY",
      countryId: "country_de",
      priority: 0,
      isActive: true,
    })).rejects.toThrow("A holiday calendar for this exact scope already exists");

    expect(db.holidayCalendar.create).not.toHaveBeenCalled();
  });

  it("rejects duplicate entry dates within the same calendar", async () => {
    const db = {
      holidayCalendar: {
        findUnique: vi.fn().mockResolvedValue({ id: "cal_1", name: "Deutschland Standard" }),
      },
      holidayCalendarEntry: {
        findFirst: vi.fn().mockResolvedValue({ id: "entry_existing" }),
        create: vi.fn(),
      },
      auditLog: {
        create: vi.fn().mockResolvedValue({}),
      },
    };

    const caller = createAdminCaller(db);

    await expect(caller.createEntry({
      holidayCalendarId: "cal_1",
      date: new Date("2026-12-24T00:00:00.000Z"),
      name: "Heiligabend lokal",
      isRecurringAnnual: true,
      source: "manual",
    })).rejects.toThrow("A holiday entry for this calendar and date already exists");

    expect(db.holidayCalendarEntry.create).not.toHaveBeenCalled();
  });
});