"""真实MySQL验证正式核算、工资生成锁、身份权限及冻结报表。"""

from concurrent.futures import ThreadPoolExecutor
from decimal import Decimal
from uuid import uuid4

import pytest
from sqlalchemy import func, select

from app.core.db import get_session_factory
from app.models import (
    AdjustmentOrder,
    ApprovalOrder,
    ApprovalStep,
    BusinessRole,
    PayrollMonth,
    PerformanceLedger,
    Personnel,
)
from tests.integration.factories import business_payload, customer

pytestmark = pytest.mark.integration
BASE = "/api/v1/payroll"


def post(client, path, headers, data):
    response = client.post(path, headers=headers, json=data)
    assert response.status_code == 200, response.text
    return response.json()["data"]


@pytest.fixture
def formal_chain(client, admin):
    headers = admin["headers"]
    with get_session_factory()() as s:
        roles = {r.role_code: r.id for r in s.scalars(select(BusinessRole))}
    persons = []
    for code in ("sales_manager", "salesperson"):
        persons.append(
            post(
                client,
                "/api/v1/base/personnel",
                headers,
                {
                    "personnel_name": "t_正式工资_" + uuid4().hex[:8],
                    "business_role_id": roles[code],
                    "salary_standard": "0",
                },
            )
        )
    manager, owner = persons
    cust = customer(client, headers)
    item = {
        "product_name": "t_正式产品",
        "spec_model": "",
        "product_category": "municipal_water",
        "quantity": "2",
        "sale_price": "50",
        "guided_price": "25",
    }
    business = post(
        client,
        "/api/v1/business/businesses",
        headers,
        business_payload(cust["id"], owner_personnel_id=owner["id"], items=[item]),
    )
    shipment = post(
        client,
        "/api/v1/business/shipments",
        headers,
        {
            "business_id": business["id"],
            "ship_date": "2026-03-10",
            "freight_amount": "0",
            "items": [
                {
                    "product_name": item["product_name"],
                    "spec_model": "",
                    "quantity": "2",
                    "sale_price": "50",
                }
            ],
        },
    )
    detail = client.get(f"/api/v1/business/shipments/{shipment['id']}", headers=headers).json()[
        "data"
    ]
    receipt = post(
        client,
        "/api/v1/business/receipts",
        headers,
        {"business_id": business["id"], "receipt_date": "2026-03-10", "amount": "100"},
    )
    setup = {
        "month": "2026-03",
        "expected_version": 0,
        "evidence": "隔离样本已逐笔核实",
        "opening_balance": "0",
        "history_confirmed": True,
        "guidance_finalized": True,
        "shipment_ownerships": [
            {
                "shipment_item_id": detail["items"][0]["id"],
                "personnel_id": owner["id"],
                "manager_id": manager["id"],
                "unit_cost": "25",
            }
        ],
    }
    post(client, f"{BASE}/businesses/{business['id']}/input", headers, setup)
    return business, receipt, setup, owner, manager


def test_正式核算生成工资锁定及报表一致(client, admin, formal_chain):
    business, _, setup, owner, manager = formal_chain
    headers = admin["headers"]
    result = post(
        client, f"{BASE}/businesses/{business['id']}/calculate", headers, {"month": "2026-03"}
    )
    assert result["performance"] == "0.20" and result["payable"] == "0.20"
    generated = post(client, "/api/v1/settlements/generate", headers, {"month": "2026-03"})
    assert generated["status"] == 3 and not generated["approval_required"]
    with get_session_factory()() as s:
        assert s.scalar(select(func.count()).select_from(ApprovalOrder)) == 0
        assert s.scalar(select(func.count()).select_from(ApprovalStep)) == 0
    assert Decimal(generated["total_payable"]) == Decimal("0.24")
    assert client.get(BASE + "/months/2026-03", headers=headers).json()["data"]["allocation_locked"]
    setup["expected_version"] = 1
    assert (
        client.post(
            f"{BASE}/businesses/{business['id']}/input", headers=headers, json=setup
        ).status_code
        == 400
    )
    assert (
        client.post(
            f"{BASE}/businesses/{business['id']}/calculate",
            headers=headers,
            json={"month": "2026-03", "reason": "不允许绕过生成锁"},
        ).status_code
        == 400
    )
    with get_session_factory()() as s:
        s.get(Personnel, owner["id"]).manager_id = None
        s.commit()
    report = client.get(
        "/api/v1/reports/department-summary",
        headers=headers,
        params={"settlement_month": "2026-03"},
    )
    assert report.status_code == 200, report.text
    data = report.json()["data"]
    team = next(t for t in data["teams"] if t["manager_id"] == manager["id"])
    assert Decimal(team["team_base"]) == Decimal("0.20")
    assert Decimal(data["totals"]["payable_total"]) == Decimal(generated["total_payable"])


def test_非制作人包括其他管理员均不能写(
    client, admin, normal, make_user, auth_headers, formal_chain
):
    business, _, setup, _, _ = formal_chain
    other_admin = make_user(["admin"])
    for headers in (normal["headers"], auth_headers(other_admin)):
        assert (
            client.post(
                f"{BASE}/businesses/{business['id']}/calculate",
                headers=headers,
                json={"month": "2026-03"},
            ).status_code
            == 403
        )
        assert (
            client.post(
                f"{BASE}/businesses/{business['id']}/input", headers=headers, json=setup
            ).status_code
            == 403
        )
        assert (
            client.post("/api/v1/business/businesses", headers=headers, json={}).status_code == 403
        )
    assert (
        client.get(
            f"{BASE}/businesses/{business['id']}/input", headers=normal["headers"]
        ).status_code
        == 200
    )


def test_并发核算仅一份正式结果(client, admin, formal_chain):
    business, _, _, _, _ = formal_chain

    def call():
        return client.post(
            f"{BASE}/businesses/{business['id']}/calculate",
            headers=admin["headers"],
            json={"month": "2026-03"},
        ).status_code

    with ThreadPoolExecutor(max_workers=2) as pool:
        statuses = list(pool.map(lambda _: call(), range(2)))
    assert sorted(statuses) == [200, 400]
    with get_session_factory()() as s:
        rows = list(
            s.scalars(
                select(PerformanceLedger).where(
                    PerformanceLedger.business_id == business["id"],
                    PerformanceLedger.is_active == 1,
                )
            )
        )
        assert len(rows) == 1


def test_生成失败不锁定且重新生成不解锁(client, admin, formal_chain):
    business, _, _, _, _ = formal_chain
    headers = admin["headers"]
    assert (
        client.post(
            "/api/v1/settlements/generate", headers=headers, json={"month": "2026-03"}
        ).status_code
        == 400
    )
    with get_session_factory()() as s:
        control = s.scalar(select(PayrollMonth))
        assert control is None or control.generated_at is None
    post(client, f"{BASE}/businesses/{business['id']}/calculate", headers, {"month": "2026-03"})
    post(client, "/api/v1/settlements/generate", headers, {"month": "2026-03"})
    assert (
        client.post(
            "/api/v1/settlements/generate", headers=headers, json={"month": "2026-03"}
        ).status_code
        == 400
    )
    assert client.get(BASE + "/months/2026-03", headers=headers).json()["data"]["allocation_locked"]


def test_保留可选审核_默认关闭_开启后原节点可用(
    client, admin, formal_chain, make_user, auth_headers, monkeypatch
):
    from app.core.config import get_settings

    monkeypatch.setattr(get_settings(), "payroll_approval_enabled", True)
    business, _, _, _, _ = formal_chain
    headers = admin["headers"]
    post(client, f"{BASE}/businesses/{business['id']}/calculate", headers, {"month": "2026-03"})
    generated = post(client, "/api/v1/settlements/generate", headers, {"month": "2026-03"})
    assert generated["status"] == 1 and generated["approval_required"]
    post(client, f"/api/v1/settlements/{generated['id']}/submit", headers, {})
    with get_session_factory()() as s:
        order = s.scalar(
            select(ApprovalOrder).where(
                ApprovalOrder.ref_id == generated["id"], ApprovalOrder.order_type == 2
            )
        )
        order_id = order.id
    finance = make_user(["finance"])
    leader = make_user(["leader"])
    first = post(
        client, f"/api/v1/system/approvals/{order_id}/action", auth_headers(finance), {"action": 1}
    )
    assert first["status"] == 2
    last = post(
        client, f"/api/v1/system/approvals/{order_id}/action", auth_headers(leader), {"action": 1}
    )
    assert last["status"] == 3


def test_分配调整固定当月且关闭审核不留审批痕迹(client, admin, formal_chain):
    from app.services.payroll_months import current_month

    business, _, _, owner, manager = formal_chain
    headers = admin["headers"]
    result = post(
        client, f"{BASE}/businesses/{business['id']}/calculate", headers, {"month": "2026-03"}
    )
    post(client, "/api/v1/settlements/generate", headers, {"month": "2026-03"})
    adjustment = post(
        client,
        BASE + "/allocation-adjustments",
        headers,
        {
            "ledger_id": result["ledger_ids"][0],
            "personnel_id": owner["id"],
            "direction": 1,
            "amount": "0.01",
            "reason": "逐笔核对差额",
        },
    )
    with get_session_factory()() as s:
        order = s.get(AdjustmentOrder, adjustment["id"])
        assert order.status == 2 and order.settlement_month == current_month()
        assert order.attribution_json["manager_id"] == manager["id"]
        assert s.scalar(select(func.count()).select_from(ApprovalOrder)) == 0
        assert s.scalar(select(func.count()).select_from(ApprovalStep)) == 0


def test_无正式资料时默认拒绝旧核算(client, admin, formal_chain):
    _, _receipt, _, _, _ = formal_chain
    # 使用没有正式准备的新业务，验证旧批次入口默认关闭，而不是依赖角色拒绝。
    business = post(
        client,
        "/api/v1/business/businesses",
        admin["headers"],
        business_payload(customer(client, admin["headers"])["id"]),
    )
    empty_receipt = post(
        client,
        "/api/v1/business/receipts",
        admin["headers"],
        {"business_id": business["id"], "receipt_date": "2026-03-10", "amount": "100"},
    )
    response = client.post(
        f"/api/v1/calc/receipts/{empty_receipt['id']}/calc", headers=admin["headers"]
    )
    assert response.status_code == 400 and "正式核算" in response.json()["message"]