const { normalizeWecomHrProfile, runWecomHrMasterSync } = require("../../src/services/integrations/wecomHrMaster");

function profileFor(value, userid = "synthetic-calendar") {
  return normalizeWecomHrProfile({
    contact: { userid, name: "合成员工", email: `${userid}@example.invalid`, department: [1] },
    departmentMap: new Map([["1", { name: "合成部门" }]]),
    staff: { staff_info: value === undefined ? [] : [{ fieldid: "入职日期", value }] },
  });
}

function fixture(existing = null) {
  const items = [];
  let run;
  const prisma = {
    integrationBinding: { findFirst: vi.fn().mockResolvedValue(null), create: vi.fn().mockResolvedValue({}) },
    department: {
      findUnique: vi.fn().mockResolvedValue(null), findMany: vi.fn().mockResolvedValue([]),
      create: vi.fn(async ({ data }) => ({ ...data, id: "synthetic-department" })), update: vi.fn(),
    },
    wecomIdentityBinding: { findUnique: vi.fn().mockResolvedValue(existing ? { employee: existing } : null), upsert: vi.fn().mockResolvedValue({}) },
    employee: {
      findUnique: vi.fn().mockResolvedValue(null), findMany: vi.fn().mockResolvedValue([]),
      create: vi.fn(async ({ data }) => ({ ...data, id: "synthetic-created" })),
      update: vi.fn(async ({ data }) => ({ ...data, id: existing?.id })),
    },
    employeeRole: { createMany: vi.fn().mockResolvedValue({ count: 1 }) },
    wecomHrMasterSyncRun: {
      create: vi.fn(async ({ data }) => (run = { ...data, id: "synthetic-run" })),
      update: vi.fn(async ({ data }) => (run = { ...run, ...data })),
    },
    wecomHrMasterSyncItem: {
      create: vi.fn(async ({ data }) => { const item = { ...data, id: `synthetic-item-${items.length}` }; items.push(item); return item; }),
      findMany: vi.fn(async () => items), update: vi.fn(),
    },
  };
  prisma.$transaction = vi.fn(async (callback) => callback(prisma));
  const fetchImpl = vi.fn(() => { throw new Error("offline test must not fetch"); });
  return {
    prisma, fetchImpl,
    run: (profiles, mode = "apply") => runWecomHrMasterSync({ prisma, config: {}, actorId: "synthetic-actor", mode, sourceProfiles: profiles, fetchImpl }),
  };
}

const invalidInputs = ["2026-02-29", "2024/2/30", "2026.4.31", "20260230", "2026-13-01", "2026-01-00", "not-a-date", "0", "-1", "253402300800000", "999999999999999999999"];
const validInputs = [
  ["2024-02-29", "2024-02-29"], ["2024/2/29", "2024-02-29"], ["2024.2.29", "2024-02-29"],
  ["20240229", "2024-02-29"], ["2026-4-30", "2026-04-30"],
  ["1709164800", "2024-02-29"], [1709164800000, "2024-02-29"],
];

function expectNoBusinessCalls(prisma) {
  for (const name of ["integrationBinding", "department", "employee", "employeeRole", "wecomIdentityBinding"]) {
    for (const fn of Object.values(prisma[name])) expect(fn).not.toHaveBeenCalled();
  }
  expect(prisma.wecomHrMasterSyncItem.update).not.toHaveBeenCalled();
}

describe("offline HR hire-date calendar contract", () => {
  afterEach(() => vi.useRealTimers());

  it.each(invalidInputs.flatMap((value) => ["apply", "dry_run"].map((mode) => [value, mode])))("skips invalid %s in %s before business access", async (value, mode) => {
    const f = fixture();
    const profile = { ...profileFor(value), managerExternalUserId: "synthetic-manager" };
    expect(profile.hireDate).toBeNull();
    expect(profile.hireDateInvalid).toBe(true);
    const result = await f.run([profile], mode);
    expect(result.status).toBe("partial");
    expect(result.items[0]).toMatchObject({ action: "skip", status: "skipped", errorCode: "invalid_hire_date", employeeId: null,
      errorMessage: "入职日期无效，本条未同步；请修正来源日期后重试。" });
    expect(result.items[0].fieldChanges).toBeNull();
    expect(result.items[0].sourceSummary).not.toHaveProperty("hireDate");
    expectNoBusinessCalls(f.prisma);
    expect(f.prisma.wecomHrMasterSyncRun.create).toHaveBeenCalledOnce();
    expect(f.prisma.wecomHrMasterSyncItem.create).toHaveBeenCalledOnce();
    expect(f.fetchImpl).not.toHaveBeenCalled();
  });

  it.each(validInputs)("creates exact UTC date for %s", async (input, canonical) => {
    const f = fixture();
    const profile = profileFor(input);
    expect(profile.hireDate).toBe(canonical);
    expect(profile.hireDateInvalid).toBe(false);
    const result = await f.run([profile]);
    expect(result.status).toBe("success");
    expect(f.prisma.employee.create.mock.calls[0][0].data.hire_date).toEqual(new Date(`${canonical}T00:00:00.000Z`));
    expect(f.prisma.employeeRole.createMany).toHaveBeenCalledOnce();
    expect(f.prisma.wecomIdentityBinding.upsert).toHaveBeenCalledOnce();
    expect(f.fetchImpl).not.toHaveBeenCalled();
  });

  it.each([undefined, null, "", "  "])("keeps missing %s defaulted to the run time", async (value) => {
    vi.useFakeTimers({ toFake: ["Date"] });
    vi.setSystemTime(new Date("2026-09-17T01:02:03.000Z"));
    const f = fixture();
    const result = await f.run([profileFor(value)]);
    expect(result.status).toBe("success");
    expect(f.prisma.employee.create.mock.calls[0][0].data.hire_date).toEqual(new Date("2026-09-17T01:02:03.000Z"));
    expect(f.fetchImpl).not.toHaveBeenCalled();
  });

  it.each(["apply", "dry_run"])("rejects invalid directly supplied normalized profiles in %s", async (mode) => {
    const f = fixture({ id: "synthetic-existing" });
    const result = await f.run([{ ...profileFor(undefined), hireDate: "2026-02-30", managerExternalUserId: "synthetic-manager" }], mode);
    expect(result.items[0].errorCode).toBe("invalid_hire_date");
    expectNoBusinessCalls(f.prisma);
    expect(f.fetchImpl).not.toHaveBeenCalled();
  });

  it("never adds hire_date to existing employee updates", async () => {
    const f = fixture({ id: "synthetic-existing", name: "合成员工", email: "synthetic-calendar@example.invalid", hire_date: new Date("2020-01-01T00:00:00Z") });
    const result = await f.run([profileFor("2024-02-29")]);
    expect(result.status).toBe("success");
    expect(f.prisma.employee.create).not.toHaveBeenCalled();
    expect(f.prisma.employee.update).toHaveBeenCalledOnce();
    expect(f.prisma.employee.update.mock.calls[0][0].data).not.toHaveProperty("hire_date");
  });

  it.each(["apply", "dry_run"])("continues valid profiles after an invalid one in %s", async (mode) => {
    const f = fixture();
    const result = await f.run([profileFor("2026-02-30", "synthetic-invalid"), profileFor("2024-02-29", "synthetic-valid")], mode);
    expect(result.status).toBe("partial");
    expect(result.summary).toMatchObject({ total: 2, skipped: 1, failed: 0, created: 1 });
    expect(result.items.map((item) => item.status)).toEqual(["skipped", mode === "apply" ? "success" : "planned"]);
    for (const fn of [f.prisma.department.create, f.prisma.integrationBinding.create, f.prisma.employee.create, f.prisma.employeeRole.createMany, f.prisma.wecomIdentityBinding.upsert]) {
      expect(fn).toHaveBeenCalledTimes(mode === "apply" ? 1 : 0);
    }
    expect(f.fetchImpl).not.toHaveBeenCalled();
  });
});